Filter containing a metal phthalocyanine and a polycationic polymer

Abstract

A tobacco smoke filter comprising one or more than one metal phthalocyanine, such as a copper phthalocyanine or an iron phthalocyanine, and further comprising one or more than one polycationic polymer.

1 . A tobacco smoke filter comprising: 
 a) one or more than one metal phthalocyanine;    b) one or more than one polycationic polymer; and    c) a porous substrate selected from the group consisting of a cellulosic fiber, a polyester, a polyolefin and an ion exchange material;    where the phthalocyanine is selected from the group consisting of C.I. Reactive Blue 21 dye and ORCO Turquoise Blue GGX dye; and    where the one or more than one polycationic polymer is selected from the group consisting of poly(propyleneimine), polyvinylamine, poly(2-ethylaziridine), poly(2,2-dimethylaziridine), and poly(2,2-dimethyl-3-n-propylaziridine) and a combination of the preceding.    
   
   
       2 . The tobacco smoke filter according to  claim 1 , where the porous substrate is a cellulosic fiber selected from the group consisting of cellulose acetate, cotton, wood pulp, and paper.  
   
   
       3 . The tobacco smoke filter according to  claim 1 , where the one or more than one polycationic polymer has a molecular weight greater than about 1000 Daltons.  
   
   
       4 . The tobacco smoke filter according to  claim 1 , where the one or more than one polycationic polymer has a molecular weight of between about 1000 and 100,000 Daltons.  
   
   
       5 . The tobacco smoke filter according to  claim 1 , where the porous substrate is substantially free of cellulose acetate.  
   
   
       6 . The tobacco smoke filter according to  claim 1 , further comprising one or more than one pH-modifying filter additive other than the polycationic polymer.  
   
   
       7 . The tobacco smoke filter according to  claim 6 , where the one or more than one pH-modifying filter additive is an inorganic salt.  
   
   
       8 . The tobacco smoke filter according to  claim 7 , where the inorganic salt is selected from the group consisting of sodium carbonate, calcium carbonate, sodium phosphate, calcium phosphate and a cationic ion exchange resin.  
   
   
       9 . The tobacco smoke filter according to  claim 1 , further comprising chitin.  
   
   
       10 . The tobacco smoke filter according to  claim 1 , where the one or more than one metal phthalocyanine and the one or more than one polycationic polymer are dispersed throughout the filter in a substantially uniform manner.  
   
   
       11 . The tobacco smoke filter according to  claim 1 , where the tobacco smoke filter comprises a first segment and a second segment, where the first segment comprises the one or more than one metal phthalocyanine and the one or more than one polycationic polymer, and where the second segment is substantially free of both a metal phthalocyanine and a polycationic polymer.  
   
   
       12 . A smokable device comprising a tobacco smoke filter according to  claim 1 .  
   
   
       13 . A method of filtering tobacco smoke comprising: 
 a) providing a smokable device according to  claim 12;     b) igniting the body of divided tobacco such that smoke passes through the body and into the filter; and    c) allowing the smoke to pass through the filter, thereby filtering the smoke.    
   
   
       14 . A method of making a smokable device comprising: 
 a) providing a tobacco smoke filter according  claim 1;  and    b) affixing the filter to a body of divided tobacco.    
   
   
       15 . The method of making a smokable device according to  claim 14 , further comprising spraying a solution of the one or more than one polycationic polymer onto material being made into the tobacco smoke filter, where the concentration of polycationic polymer in the solution is between about 0.5 and 50%.  
   
   
       16 . The method of making a smokable device according to  claim 14 , further comprising spraying a solution of the one or more than one polycationic polymer onto material being made into the tobacco smoke filter, where the concentration of polycationic polymer in the solution is between about 1 and 10%.  
   
   
       17 . The method of making a smokable device according to  claim 14 , where the tobacco smoke filter comprises paper made from pulp, and where the method further comprises adding the polycationic polymer to the pulp before the pulp is laid onto papermaking screens.  
   
   
       18 . A tobacco smoke filter comprising: 
 a) one or more than one iron phthalocyanine;    b) one or more than one polycationic polymer; and    c) a porous substrate selected from the group consisting of a cellulosic fiber, a polyester, a polyolefin and an ion exchange material;    where the one or more than one polycationic polymer is selected from the group consisting of poly(propyleneimine), polyvinylamine, poly(2-ethylaziridine), poly(2,2-dimethylaziridine), and poly(2,2-dimethyl-3-n-propylaziridine) and a combination of the preceding.    
   
   
       19 . The tobacco smoke filter according to  claim 18 , where the porous substrate is a cellulosic fiber selected from the group consisting of cellulose acetate, cotton, wood pulp, and paper.  
   
   
       20 . The tobacco smoke filter according to  claim 18 , where the iron phthalocyanine is an iron analog of C.I. Reactive Blue 21 dye.  
   
   
       21 . The tobacco smoke filter according to  claim 18 , where the one or more than one polycationic polymer has a molecular weight greater than about 1000 Daltons.  
   
   
       22 . The tobacco smoke filter according to  claim 18 , where the one or more than one polycationic polymer has a molecular weight of between about 1000 and 100,000 Daltons.  
   
   
       23 . The tobacco smoke filter according to  claim 18 , further comprising cellulose that is substantially free of cellulose acetate.  
   
   
       24 . The tobacco smoke filter according to  claim 18 , further comprising one or more than one pH-modifying filter additive other than the polycationic polymer.  
   
   
       25 . The tobacco smoke filter according to  claim 24 , where the one or more than one pH-modifying filter additive is an inorganic salt.  
   
   
       26 . The tobacco smoke filter according to  claim 25 , where the inorganic salt is selected from the group consisting of sodium carbonate, calcium carbonate, sodium phosphate, calcium phosphate and a cationic ion exchange resin.  
   
   
       27 . The tobacco smoke filter according to  claim 18 , further comprising chitin.  
   
   
       28 . The tobacco smoke filter according to  claim 18 , where the one or more than one iron phthalocyanine and the one or more than one polycationic polymer are dispersed throughout the filter in a substantially uniform manner.  
   
   
       29 . The tobacco smoke filter according to  claim 18 , where the tobacco smoke filter comprises a first segment and a second segment, where the first segment comprises the one or more than one iron phthalocyanine and the one or more than one polycationic polymer, and where the second segment is substantially free of both an iron phthalocyanine and a polycationic polymer.  
   
   
       30 . A smokable device comprising a tobacco smoke filter according to  claim 18 .  
   
   
       31 . A method of filtering tobacco smoke comprising: 
 a) providing a smokable device according to  claim 30;     b) igniting the body of divided tobacco such that smoke passes through the body and into the filter; and    c) allowing the smoke to pass through the filter, thereby filtering the smoke.    
   
   
       32 . A method of making a smokable device comprising: 
 a) providing a tobacco smoke filter according  claim 18;  and    b) affixing the filter to a body of divided tobacco.    
   
   
       33 . The method of making a smokable device according to  claim 32 , further comprising spraying a solution of the one or more than one polycationic polymer onto material being made into the tobacco smoke filter, where the concentration of polycationic polymer in the solution is between about 0.5 and 50%.  
   
   
       34 . The method of making a smokable device according to  claim 32 , further comprising spraying a solution of the one or more than one polycationic polymer onto material being made into the tobacco smoke filter, where the concentration of polycationic polymer in the solution is between about 1 and 10%.  
   
   
       35 . The method of making a smokable device according to  claim 32 , where the tobacco smoke filter comprises paper made from pulp, and where the method further comprises adding the polycationic polymer to the pulp before the pulp is laid onto papermaking screens.  
   
   
       36 . A tobacco smoke filter comprising: 
 a) one or more than one metal phthalocyanine;    b) one or more than one polycationic polymer selected from the group consisting of poly(propyleneimine), polyvinylamine, poly(2-ethylaziridine), poly(2,2-dimethylaziridine), and poly(2,2-dimethyl-3-n-propylaziridine) and a combination of the preceding; and    c) a porous substrate selected from the group consisting of a cellulosic fiber, a polyester, a polyolefin and an ion exchange material.    
   
   
       37 . The tobacco smoke filter according to  claim 36 , where the porous substrate is a cellulosic fiber selected from the group consisting of cellulose acetate, cotton, wood pulp, and paper.  
   
   
       38 . The tobacco smoke filter according to  claim 36 , where the one or more than one metal phthalocyanine is a copper phthalocyanine.  
   
   
       39 . The tobacco smoke filter according to  claim 36 , where the one or more than one polycationic polymer has a molecular weight greater than about 1000 Daltons.  
   
   
       40 . The tobacco smoke filter according to  claim 36 , where the one or more than one polycationic polymer has a molecular weight of between about 1000 and 100,000 Daltons.  
   
   
       41 . The tobacco smoke filter according to  claim 36 , further comprising cellulose that is substantially free of cellulose acetate.  
   
   
       42 . The tobacco smoke filter according to  claim 36 , further comprising one or more than one pH-modifying filter additive other than the polycationic polymer; and 
 where the one or more than one pH-modifying filter additive is an inorganic salt.    
   
   
       43 . The tobacco smoke filter according to  claim 42 , where the inorganic salt is selected from the group consisting of sodium carbonate, calcium carbonate, sodium phosphate, calcium phosphate and a cationic ion exchange resin.  
   
   
       44 . The tobacco smoke filter according to  claim 36 , where the one or more than one metal phthalocyanine and the one or more than one polycationic polymer are dispersed throughout the filter in a substantially uniform manner.  
   
   
       45 . A smokable device comprising a tobacco smoke filter according to  claim 36 .  
   
   
       46 . A method of filtering tobacco smoke comprising: 
 a) providing a smokable device according to  claim 45;     b) igniting the body of divided tobacco such that smoke passes through the body and into the filter; and    c) allowing the smoke to pass through the filter, thereby filtering the smoke.    
   
   
       47 . A method of making a smokable device comprising: 
 a) providing a tobacco smoke filter according  claim 36;  and    b) affixing the filter to a body of divided tobacco.    
   
   
       48 . The method of making a smokable device according to  claim 47 , further comprising spraying a solution of the one or more than one polycationic polymer onto material being made into the tobacco smoke filter, where the concentration of polycationic polymer in the solution is between about 0.5 and 50%.  
   
   
       49 . The method of making a smokable device according to  claim 47 , further comprising spraying a solution of the one or more than one polycationic polymer onto material being made into the tobacco smoke filter, where the concentration of polycationic polymer in the solution is between about 1 and 10%.  
   
   
       50 . A tobacco smoke filter comprising: 
 a) one or more than one metal phthalocyanine;    b) one or more than one polycationic polymer;    c) one or more than one pH-modifying filter additive other than the polycationic polymer; and    d) a porous substrate selected from the group consisting of a cellulosic fiber, a polyester, a polyolefin and an ion exchange material.    where the one or more than one polycationic polymer is selected from the group consisting of poly(propyleneimine), polyvinylamine, poly(2-ethylaziridine), poly(2,2-dimethylaziridine), and poly(2,2-dimethyl-3-n-propylaziridine) and a combination of the preceding.    
   
   
       51 . The tobacco smoke filter according to  claim 50 , where the porous substrate is a cellulosic fiber selected from the group consisting of cellulose acetate, cotton, wood pulp, and paper.  
   
   
       52 . The tobacco smoke filter according to  claim 50 , where the one or more than one metal phthalocyanine is a copper phthalocyanine.  
   
   
       53 . The tobacco smoke filter according to  claim 52 , where the copper phthalocyanine is selected from the group consisting of C.I. Reactive Blue 21 dye and ORCO Turquoise Blue GGX dye.  
   
   
       54 . The tobacco smoke filter according to  claim 50 , where the one or more than one metal phthalocyanine is an iron phthalocyanine.  
   
   
       55 . The tobacco smoke filter according to  claim 54 , where the iron phthalocyanine is an iron analog of C.I. Reactive Blue 21 dye.  
   
   
       56 . The tobacco smoke filter according to  claim 50 , where the one or more than one polycationic polymer has a molecular weight greater than about 1000 Daltons.  
   
   
       57 . The tobacco smoke filter according to  claim 50 , where the one or more than one polycationic polymer has a molecular weight of between about 1000 and 100,000 Daltons.  
   
   
       58 . The tobacco smoke filter according to  claim 50 , further comprising cellulose that is substantially free of cellulose acetate.  
   
   
       59 . The tobacco smoke filter according to  claim 50 , where the one or more than one metal phthalocyanine is a copper phthalocyanine, and where the polycationic polymer is poly(propyleneimine).  
   
   
       60 . The tobacco smoke filter according to  claim 50 , where the one or more than one metal phthalocyanine is an iron phthalocyanine, and where the polycationic polymer is poly(propyleneimine).  
   
   
       61 . The tobacco smoke filter according to  claim 50 , where the one or more than one pH-modifying filter additive other than the polycationic polymer is selected from the group consisting of sodium carbonate, calcium carbonate, sodium phosphate, calcium phosphate and a cationic ion exchange resin.  
   
   
       62 . The tobacco smoke filter according to  claim 50 , further comprising chitin.  
   
   
       63 . The tobacco smoke filter according to  claim 50 , where the one or more than one metal phthalocyanine and the one or more than one polycationic polymer are dispersed throughout the filter in a substantially uniform manner.  
   
   
       64 . The tobacco smoke filter according to  claim 50 , where the tobacco smoke filter comprises a first segment and a second segment, where the first segment comprises the one or more than one metal phthalocyanine and the one or more than one polycationic polymer, and where the second segment is substantially free of both a metal phthalocyanine and a polycationic polymer.  
   
   
       65 . A smokable device comprising a tobacco smoke filter according to  claim 50 .  
   
   
       66 . A method of filtering tobacco smoke comprising: 
 a) providing a smokable device according to  claim 65;     b) igniting the body of divided tobacco such that smoke passes through the body and into the filter; and    c) allowing the smoke to pass through the filter, thereby filtering the smoke.    
   
   
       67 . A method of making a smokable device comprising: 
 a) providing a tobacco smoke filter according  claim 50;  and    b) affixing the filter to a body of divided tobacco.    
   
   
       68 . The method of making a smokable device according to  claim 67 , further comprising spraying a solution of the one or more than one polycationic polymer onto material being made into the tobacco smoke filter, where the concentration of polycationic polymer in the solution is between about 0.5 and 50%.  
   
   
       69 . The method of making a smokable device according to  claim 67 , further comprising spraying a solution of the one or more than one polycationic polymer onto material being made into the tobacco smoke filter, where the concentration of polycationic polymer in the solution is between about 1 and 10%.  
   
   
       70 . The method of making a smokable device according to  claim 67 , where the tobacco smoke filter comprises paper made from pulp, and where the method further comprises adding the polycationic polymer to the pulp before the pulp is laid onto papermaking screens.  
   
   
       71 . A tobacco smoke filter comprising: 
 a) one or more than one metal phthalocyanine;    b) one or more than one polycationic polymer;    c) chitin; and    d) a porous substrate selected from the group consisting of a cellulosic fiber, a polyester, a polyolefin and an ion exchange material;    where the one or more than one polycationic polymer is selected from the group consisting of poly(propyleneimine), polyvinylamine, poly(2-ethylaziridine), poly(2,2-dimethylaziridine), and poly(2,2-dimethyl-3-n-propylaziridine) and a combination of the preceding.    
   
   
       72 . The tobacco smoke filter according to  claim 71 , where the porous substrate is a cellulosic fiber selected from the group consisting of cellulose acetate, cotton, wood pulp, and paper.  
   
   
       73 . The tobacco smoke filter according to  claim 71 , where the one or more than one metal phthalocyanine is a copper phthalocyanine.  
   
   
       74 . The tobacco smoke filter according to  claim 73 , where the copper phthalocyanine is selected from the group consisting of C.I. Reactive Blue 21 dye and ORCO Turquoise Blue GGX dye.  
   
   
       75 . The tobacco smoke filter according to  claim 71 , where the one or more than one metal phthalocyanine is an iron phthalocyanine.  
   
   
       76 . The tobacco smoke filter according to  claim 75 , where the iron phthalocyanine is an iron analog of C.I. Reactive Blue 21 dye.  
   
   
       77 . The tobacco smoke filter according to  claim 71 , where the one or more than one polycationic polymer has a molecular weight greater than about 1000 Daltons.  
   
   
       78 . The tobacco smoke filter according to  claim 71 , where the one or more than one polycationic polymer has a molecular weight of between about 1000 and 100,000 Daltons.  
   
   
       79 . The tobacco smoke filter according to  claim 71 , further comprising cellulose that is substantially free of cellulose acetate.  
   
   
       80 . The tobacco smoke filter according to  claim 71 , further comprising one or more than one pH-modifying filter additive other than the polycationic polymer.  
   
   
       81 . The tobacco smoke filter according to  claim 80 , where the one or more than one pH-modifying filter additive is an inorganic salt.  
   
   
       82 . The tobacco smoke filter according to  claim 81 , where the inorganic salt is selected from the group consisting of sodium carbonate, calcium carbonate, sodium phosphate, calcium phosphate and a cationic ion exchange resin.  
   
   
       83 . The tobacco smoke filter according to  claim 71 , where the one or more than one metal phthalocyanine and the one or more than one polycationic polymer are dispersed throughout the filter in a substantially uniform manner.  
   
   
       84 . The tobacco smoke filter according to  claim 71 , where the tobacco smoke filter comprises a first segment and a second segment, where the first segment comprises the one or more than one metal phthalocyanine and the one or more than one polycationic polymer, and where the second segment is substantially free of both a metal phthalocyanine and a polycationic polymer.  
   
   
       85 . A smokable device comprising a tobacco smoke filter according to  claim 71 .  
   
   
       86 . A method of filtering tobacco smoke comprising: 
 a) providing a smokable device according to  claim 85;     b) igniting the body of divided tobacco such that smoke passes through the body and into the filter; and    c) allowing the smoke to pass through the filter, thereby filtering the smoke.    
   
   
       87 . A method of making a smokable device comprising: 
 a) providing a tobacco smoke filter according  claim 71;  and    b) affixing the filter to a body of divided tobacco.    
   
   
       88 . The method of making a smokable device according to  claim 87 , further comprising spraying a solution of the one or more than one polycationic polymer onto material being made into the tobacco smoke filter, where the concentration of polycationic polymer in the solution is between about 0.5 and 50%.  
   
   
       89 . The method of making a smokable device according to  claim 87 , further comprising spraying a solution of the one or more than one polycationic polymer onto material being made into the tobacco smoke filter, where the concentration of polycationic polymer in the solution is between about 1 and 10%.  
   
   
       90 . The method of making a smokable device according to  claim 87 , where the tobacco smoke filter comprises paper made from pulp, and where the method further comprises adding the polycationic polymer to the pulp before the pulp is laid onto papermaking screens.  
   
   
       91 . A tobacco smoke filter comprising: 
 a) a first segment;    b) a second segment; and    c) a porous substrate selected from the group consisting of a cellulosic fiber, a polyester, a polyolefin and an ion exchange material;    where the first segment comprises one or more than one metal phthalocyanine and one or more than one polycationic polymer;    where the second segment is substantially free of both a metal phthalocyanine and a polycationic polymer; and    where the one or more than one polycationic polymer is selected from the group consisting of poly(propyleneimine), polyvinylamine, poly(2-ethylaziridine), poly(2,2-dimethylaziridine), and poly(2,2-dimethyl-3-n-propylaziridine) and a combination of the preceding.    
   
   
       92 . The tobacco smoke filter according to  claim 91 , where the porous substrate is a cellulosic fiber selected from the group consisting of cellulose acetate, cotton, wood pulp, and paper.  
   
   
       93 . The tobacco smoke filter according to  claim 91 , where the one or more than one metal phthalocyanine is a copper phthalocyanine.  
   
   
       94 . The tobacco smoke filter according to  claim 93 , where the copper phthalocyanine is selected from the group consisting of C.I. Reactive Blue 21 dye and ORCO Turquoise Blue GGX dye.  
   
   
       95 . The tobacco smoke filter according to  claim 91 , where the one or more than one metal phthalocyanine is an iron phthalocyanine.  
   
   
       96 . The tobacco smoke filter according to  claim 95 , where the iron phthalocyanine is an iron analog of C.I. Reactive Blue 21 dye.  
   
   
       97 . The tobacco smoke filter according to  claim 91 , where the one or more than one polycationic polymer has a molecular weight greater than about 1000 Daltons.  
   
   
       98 . The tobacco smoke filter according to  claim 91 , where the one or more than one polycationic polymer has a molecular weight of between about 1000 and 100,000 Daltons.  
   
   
       99 . The tobacco smoke filter according to  claim 91 , further comprising cellulose that is substantially free of cellulose acetate.  
   
   
       100 . The tobacco smoke filter according to  claim 91 , where the one or more than one metal phthalocyanine is a copper phthalocyanine, and where the polycationic polymer is polyethyleneimine.  
   
   
       101 . The tobacco smoke filter according to  claim 91 , where the one or more than one metal phthalocyanine is an iron phthalocyanine, and where the polycationic polymer is polyethyleneimine.  
   
   
       102 . The tobacco smoke filter according to  claim 91 , further comprising one or more than one pH-modifying filter additive other than the polycationic polymer.  
   
   
       103 . The tobacco smoke filter according to  claim 102 , where the one or more than one pH-modifying filter additive is an inorganic salt.  
   
   
       104 . The tobacco smoke filter according to  claim 103 , where the inorganic salt is selected from the group consisting of sodium carbonate, calcium carbonate, sodium phosphate, calcium phosphate and a cationic ion exchange resin.  
   
   
       105 . The tobacco smoke filter according to  claim 91 , further comprising chitin.  
   
   
       106 . The tobacco smoke filter according to  claim 91 , where the one or more than one metal phthalocyanine and the one or more than one polycationic polymer are dispersed throughout the filter in a substantially uniform manner.  
   
   
       107 . A smokable device comprising a tobacco smoke filter according to  claim 91 .  
   
   
       108 . A method of filtering tobacco smoke comprising: 
 a) providing a smokable device according to  claim 107;     b) igniting the body of divided tobacco such that smoke passes through the body and into the filter; and    c) allowing the smoke to pass through the filter, thereby filtering the smoke.    
   
   
       109 . A method of making a smokable device comprising: 
 a) providing a tobacco smoke filter according  claim 91;  and    b) affixing the filter to a body of divided tobacco.    
   
   
       110 . The method of making a smokable device according to  claim 109 , further comprising spraying a solution of the one or more than one polycationic polymer onto material being made into the tobacco smoke filter, where the concentration of polycationic polymer in the solution is between about 0.5 and 50%.  
   
   
       111 . The method of making a smokable device according to  claim 109 , further comprising spraying a solution of the one or more than one polycationic polymer onto material being made into the tobacco smoke filter, where the concentration of polycationic polymer in the solution is between about 1 and 10%.  
   
   
       112 . The method of making a smokable device according to  claim 109 , where the tobacco smoke filter comprises paper made from pulp, and where the method further comprises adding the polycationic polymer to the pulp before the pulp is laid onto papermaking screens.  
   
   
       113 . A tobacco smoke filter comprising: 
 a) one or more than one metal phthalocyanine;    b) one or more than one polycationic polymer; and    c) a porous substrate selected from the group consisting of a cellulosic fiber, a polyester, a polyolefin and an ion exchange material;    where the tobacco smoke filter comprises a first segment, a second segment and a third segment;    where the first segment comprises the one or more than one metal phthalocyanine but is substantially free of polycationic polymer;    where the second segment comprises both the one or more than one metal phthalocyanine and the one or more than one polycationic polymer; and    where the third segment comprises the one or more than one polycationic polymer but is substantially free of a metal phthalocyanine.    
   
   
       114 . The tobacco smoke filter according to  claim 113 , where the porous substrate is a cellulosic fiber selected from the group consisting of cellulose acetate, cotton, wood pulp, and paper.  
   
   
       115 . The tobacco smoke filter according to  claim 113 , where the first segment is between the second segment and the third segment.  
   
   
       116 . The tobacco smoke filter according to  claim 113 , where the second segment is between the first segment and the third segment.  
   
   
       117 . The tobacco smoke filter according to  claim 113 , where the third segment is between the first segment and the second segment.  
   
   
       118 . The tobacco smoke filter according to  claim 113 , where the one or more than one metal phthalocyanine is a copper phthalocyanine.  
   
   
       119 . The tobacco smoke filter of  claim 113 , where the one or more than one metal phthalocyanine is selected from the group consisting of C.I. Reactive Blue 21 dye and ORCO Turquoise Blue GGX dye.  
   
   
       120 . The tobacco smoke filter according to  claim 113 , where the one or more than one metal phthalocyanine is an iron phthalocyanine.  
   
   
       121 . The tobacco smoke filter according to  claim 113 , where the iron phthalocyanine is an iron analog of C.I. Reactive Blue 21 dye.  
   
   
       122 . The tobacco smoke filter of  claim 113 , where the one or more than one polycationic polymer has a cationic moiety comprising one or more than one primary or secondary amino group.  
   
   
       123 . The tobacco smoke filter of  claim 113 , where the one or more than one polycationic polymer is selected from the group consisting of poly(propyleneimine), polyvinylamine, poly(2-ethylaziridine), poly(2,2-dimethylaziridine), and poly(2,2-dimethyl-3-n-propylaziridine) and a combination of the preceding.  
   
   
       124 . The tobacco smoke filter according to  claim 113 , where the one or more than one polycationic polymer is polyethyleneimine.  
   
   
       125 . The tobacco smoke filter according to  claim 113 , where the one or more than one polycationic polymer has a molecular weight greater than about 1000 Daltons.  
   
   
       126 . The tobacco smoke filter according to  claim 113 , where the one or more than one polycationic polymer has a molecular weight of between about 1000 and 100,000 Daltons.  
   
   
       127 . The tobacco smoke filter according to  claim 113 , further comprising cellulose that is substantially free of cellulose acetate.  
   
   
       128 . The tobacco smoke filter according to  claim 113  further comprising one or more than one pH-modifying filter additive other than the polycationic polymer.  
   
   
       129 . The tobacco smoke filter according to  claim 128 , where the one or more than one pH-modifying filter additive is an inorganic salt.  
   
   
       130 . The tobacco smoke filter according to  claim 129 , where the inorganic salt is selected from the group consisting of sodium carbonate, calcium carbonate, sodium phosphate, calcium phosphate and a cationic ion exchange resin.  
   
   
       131 . The tobacco smoke filter according to  claim 130 , further comprising chitin.