US2009255061A1PendingUtilityA1
Cleaning system utilizing an organic solvent and a pressurized fluid solvent
Est. expiryOct 11, 2020(expired)· nominal 20-yr term from priority
B08B 7/0021D06L 1/08D06L 1/02D06F 43/00D06F 43/007C11D 7/263C11D 7/04
65
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Claims
Abstract
A cleaning system that utilizes an organic cleaning solvent and pressurized fluid solvent is disclosed. The system has no conventional evaporative hot air drying cycle. Instead, the system utilizes the solubility of the organic solvent in pressurized fluid solvent as well as the physical properties of pressurized fluid solvent. After an organic solvent cleaning cycle, the solvent is extracted from the textiles at high speed in a rotating drum in the same way conventional solvents are extracted from textiles in conventional evaporative hot air dry cleaning machines. Instead of proceeding to a conventional drying cycle, the extracted textiles are then immersed in pressurized fluid solvent to extract the residual organic solvent from the textiles. This is possible because the organic solvent is soluble in pressurized fluid solvent. After the textiles are immersed in pressurized fluid solvent, pressurized fluid solvent is pumped from the drum. Finally, the drum is de-pressurized to atmospheric pressure to evaporate any remaining pressurized fluid solvent, yielding clean, solvent free textiles. The organic solvent is preferably dipropylene glycol n-butyl ether, tripropylene glycol n-butyl ether or tripropylene glycol methyl ether, a mixture thereof, or a similar solvent and the pressurized fluid solvent is preferably densified carbon dioxide.
Claims
exact text as granted — not AI-modified1 . A process for cleaning substrates comprising:
cleaning the substrates with an organic solvent; and removing the organic solvent from the substrates using a pressurized fluid solvent; wherein the organic solvent is of the structural formula:
wherein x, y, and z each is zero or one;
at least one of x, y, and z is one;
R′ is C j H 2j+1 wherein j is an integer between one and (13−3(x+y+z)), inclusive; and
R 1-3 are independently H or CH 3 .
2 . A process for cleaning substrates comprising:
cleaning the substrates with an organic solvent; and removing the organic solvent from the substrates using a pressurized fluid solvent; wherein the organic solvent is of the structural formula:
wherein x, y, and z each is zero or one;
at least one of x, y, and z is one;
R″ is benzyl, phenyl, partially or fully fluorinated benzyl or phenyl, C j H 2j+1 , or C j H a F b wherein j is an integer between one and (13−3(x+y+z)), inclusive, a and b each is independently an integer between zero and 2j+1, inclusive, and a+b=2j+1;
R 1-12 are independently C m H n F p or C d H e F g where m is an integer between zero and two, inclusive, n and p are integers between zero and five, inclusive and n+p=2m+1, d is an integer between zero and two, inclusive, e and g are integers between zero and five, inclusive, and e+g=2d+ 1 ; and
R′ is O, S, carbonyl or ester.
3 . The process of claim 2 wherein:
R′ is O; R″ is C j H 2j+1 ; R 1-3 are independently H or CH 3 ; and R 4-12 each is H.
4 . The process of claim 2 wherein:
R′ is S, carbonyl or ester; R″ is C j H 2j+1 ; R 1-3 are independently H or CH 3 ; and R 4-12 each is H.
5 . The process of claim 2 wherein:
R′ is O; R″ is C j H 2j+1 ; R 1-3 are independently H, CH 3 , or C 2 H 5 ; and at least one of R 1-3 is CH 2 CH 3 ; and R 4-12 are each H.
6 . The process of claim 2 wherein:
R′ is S, carbonyl or ester; R″ is C j H 2j+1 ; R 1-3 are independently H, CH 3 , or C 2 H 5 ; and at least one of R 1-3 is CH 2 CH 3 ; and R 4-12 are each H.
7 . The process of claim 2 wherein:
R′ is O; R″ is C j H 2j+1 ; R 1-9 are each H; R 10-12 are independently H or CH 3 ; and at least one of R 10-12 is CH 3 .
8 . The process of claim 2 wherein:
R′ is S, carbonyl or ester; R″ is C j H 2j+1 ; R 1-9 are each H; R 10-12 are independently H or CH 3 ; and at least one of R 10-12 is CH 3 .
9 . The process of claim 2 wherein:
R′ is O; R″ is C j H 2j+1 ; R 1-9 are each H; R 10-12 are independently H, CH 3 , or C 2 H 5 ; and at least one of R 10-12 is CH 2 CH 3 .
10 . The process of claim 2 wherein:
R′ is S, carbonyl or ester; R″ is C j H 2j+1 ; R 1-9 are each H; R 10-12 are independently H, CH 3 , or C 2 H 5 ; and at least one of R 10-12 is CH 2 CH 3 .
11 . The process of claim 2 wherein:
R′ is O; R″ is C j H a F b ; R 1-3 are independently H, F, CH 3 , CH 2 F, CHF 2 , or CF 3 ; and at least one is CH 3 , CH 2 F, CHF 2 , or CF 3 ; and R 4-12 are independently H or F.
12 . The process of claim 2 wherein:
R′ is S, carbonyl, or ester; R″ is C j H a F b ; R 1-3 are independently H, F, CH 3 , CH 2 F, CHF 2 , or CF 3 ; and at least one is CH 3 , CH 2 F, CHF 2 , or CF 3 ; and R 4-12 are independently H or F.
13 . The process of claim 2 wherein:
R 1-3 are independently C m H n F p ; at least one of R 1-3 is C 2 H n F p ; R 4-12 are independently H or F; R′ is O; and R″ is C j H a F b .
14 . The process of claim 2 wherein:
R 1-3 are independently C m H n F p ; at least one of R 1-3 is C 2 H n F p ; R 4-12 are independently H or F; R′ is S, carbonyl or ester; and R″ is C j H a F b .
15 . The process of claim 2 wherein:
R 1-9 are independently H or F; R 10-12 are independently H, F, CH 3 , CH 2 F, CHF 2 or CF 3 ; at least one of R 10-12 is CH 3 , CH 2 F, CHF 2 or CF 3 ; R′ is O; and R″ is C j H a F b .
16 . The process of claim 2 wherein:
R 1-9 are independently H or F; R 10-12 are independently H, F, CH 3 , CH 2 F, CHF 2 or CF 3 ; at least one of R 10-12 is CH 3 , CH 2 F, CHF 2 or CF 3 ; R′ is S, carbonyl or ester; and R″ is C j H a F b .
17 . The process of claim 2 wherein:
R′ is O; R″ is C j H a F b ; R 1-3 are independently C m H n F p ; R 4-9 are independently H or F; and R 10-12 are independently C d H e F g .
18 . The process of claim 2 wherein:
R′ is S, carbonyl or ester; R″ is C j H a F b ; R 1-3 are independently C m H n F p ; R 4-9 are independently H or F; and R 10-12 are independently C d H e F g .
19 . The process of claim 2 wherein:
R′ is O; R″ is benzyl or phenyl; R 1-3 are independently H, CH 3 , or C 2 H 5 ; at least one of R 1-3 is CH 2 CH 3 ; and R 4-12 are each H.
20 . The process of claim 2 wherein:
R′ is S, carbonyl or ester; R″ is benzyl or phenyl; R 1-3 are independently H, CH 3 , or C 2 H 5 ; at least one of R 1-3 is CH 2 CH 3 ; and R 4-12 are each H.
21 . The process of claim 2 wherein:
R′ is O; R″ is benzyl or phenyl; R 1-9 are each H; R 10-12 are independently H or CH 3 ; and at least one of R 10-12 is CH 3 .
22 . The process of claim 2 wherein:
R′ is S, carbonyl or ester; R″ is benzyl or phenyl; R 1-9 are each H; R 10-12 are independently H or CH 3 ; and at least one of R 10-12 is CH 3 .
23 . The process of claim 2 wherein:
R′ is O; R″ is benzyl or phenyl; R 1-9 are each H; R 10-12 are independently H, CH 3 , or C 2 H 5 ; and at least one of R 10-12 is CH 2 CH 3 .
24 . The process of claim 2 wherein:
R′ is S, carbonyl or ester; R″ is benzyl or phenyl; R 1-9 are each H; R 10-12 are independently H, CH 3 , or C 2 H 5 ; and at least one of R 10-12 is CH 2 CH 3 .
25 . The process of claim 2 wherein:
R″ is benzyl, phenyl, or partially or fully fluorinated benzyl or phenyl; R 1-3 are independently C m H n F p ; at least one of R 1-3 is C 2 H n F p ; R 4-12 are independently H or F; and R′ is O.
26 . The process of claim 2 wherein:
R″ is benzyl, phenyl, or partially or fully fluorinated benzyl or phenyl; R 1-3 are independently C m H n F p ; at least one of R 1-3 is C 2 H n F p ; R 4-12 are independently H or F; and R′ is S, carbonyl or ester.
27 . The process of claim 2 wherein:
R″ is benzyl, phenyl, or partially or fully fluorinated benzyl or phenyl; R 1-9 are independently H or F; R 10-12 are independently H, F, CH 3 , CH 2 F, CHF 2 or CF 3 ; at least one of R 10-12 is CH 3 , CH 2 F, CHF 2 or CF 3 ; and R′ is O.
28 . The process of claim 2 wherein:
R″ is benzyl, phenyl, or partially or fully fluorinated benzyl or phenyl; R 1-9 are independently H or F; R 10-12 are independently H, F, CH 3 , CH 2 F, CHF 2 or CF 3 ; at least one of R 10-12 is CH 3 , CH 2 F, CHF 2 or CF 3 ; and R′ is S, carbonyl or ester.
29 . The process of claim 2 wherein:
R″ is benzyl, phenyl, or partially or fully fluorinated benzyl or phenyl; R 1-9 are independently H or F; R 10-12 are independently C m H n F p ; at least one of R 10-12 is C 2 H n F p ; and R′is O.
30 . The process of claim 2 wherein:
R″ is benzyl, phenyl, or partially or fully fluorinated benzyl or phenyl; R 1-9 are independently H or F; R 10-12 are independently C m H n F p ; at least one of R 10-12 is C 2 H n F p ; and R′ is S, carbonyl or ester.
31 . The process of claim 2 wherein:
R′ is O; R″ is benzyl, phenyl, or partially or fully fluorinated benzyl or phenyl; R 1-3 are independently C m H n F p ; R 4-9 are independently H or F; and R 10-12 are independently C d H e F g .
32 . The process of claim 2 wherein:
R′ is S, carbonyl or ester; R″ is benzyl, phenyl, or partially or fully fluorinated benzyl or phenyl; R 1-3 are independently C m H n F p ; R 4-9 are independently H or F; and R 10-12 are independently C d H e F g .
33 . A process for cleaning substrates comprising:
cleaning the substrates with an organic solvent; and removing the organic solvent from the substrates using a pressurized fluid solvent; wherein the organic solvent is of the structural formula:
wherein x, y, and z each is zero or one;
at least one of x, y, and z is one;
R″ is C j H u F v and R IV is C k H r F s wherein j and k are each an integer between one and (13−3(x+y+z)), inclusive, and j+k is an integer between two and (13−3(x+y+z)), inclusive, u and v are each an integer between zero and 2j+1, inclusive, and u+v=2j+1, and r and s are each an integer between zero and 2k+1, inclusive, and r+s=2k+1;
R 1-3 and R 10-12 are independently C m H n F p , where m is an integer between zero and two, inclusive, n and p are integers between zero and five, inclusive and n+p=2m+1;
R 4-9 are independently H, F or CH 3 ; and
R′ is O, S, carbonyl or ester.
34 . The process of claim 33 wherein:
R′ is O; R″ is C j H 2j+1 ; R IV is C k H 2k+1 ; R 1-3 are independently H or CH 3 ; and R 4-12 are each H.
35 . The process of claim 33 wherein:
R′ is S, carbonyl or ester; R″ is C j H 2j+1 ; R IV is C k H 2k+1 ; R 1-3 are independently H or CH 3 ; and R 4-12 are each H.
36 . The process of claim 33 wherein:
R′ is O; R″ is C j H 2j+1 ; R IV is C k H 2k+1 ; R 1-3 are independently H, CH 3 , or C 2 H 5 ; at least one of R 1-3 is CH 2 CH 3 ; and R 4-12 are each H.
37 . The process of claim 33 wherein:
R′ is S, carbonyl or ester; R″ is C j H 2j+1 ; R IV is C k H 2k+1 ; R 1-3 are independently H, CH 3 , or C 2 H 5 ; at least one of R 1-3 is CH 2 CH 3 ; and R 4-12 are each H.
38 . The process of claim 33 wherein:
R′ is O; R″ is C j H 2j+1 ; R IV is C k H 2k+1 ; R 1-9 are each H; R 10-12 are independently H or CH 3 ; and at least one of R 10-12 is CH 3 .
39 . The process of claim 33 wherein:
R′ is S, carbonyl or ester; R″ is C j H 2j+1 ; R IV is C k H 2k+1 ; R 1-9 are each H; R 10-12 are independently H or CH 3 ; and at least one of R 10-12 is CH 3 .
40 . The process of claim 33 wherein:
R′ is O; R″ is C j H 2j+1 ; R IV is C k H 2k+1 ; R 1-9 are each H; R 10-12 are independently H, CH 3 , or C 2 H 5 ; and at least one of R 10-12 is CH 2 CH 3 .
41 . The process of claim 33 wherein:
R′ is S, carbonyl or ester; R″ is C j H 2j+1 ; R IV is C k H 2k+1 ; R 1-9 are each H; R 10-12 are independently H, CH 3 , or C 2 H 5 ; and at least one of R 10-12 is CH 2 CH 3 .
42 . The process of claim 33 wherein:
R 1-3 are independently H, F, CH 3 , CH 2 F, CHF 2 , or CF 3 ; R 4-12 are independently H or F; and R′ is O.
43 . The process of claim 33 wherein:
R 1-3 are independently H, F, CH 3 , CH 2 F, CHF 2 , or CF 3 ; R 4-12 are independently H or F; and R′ is S, carbonyl or ester.
44 . The process of claim 33 wherein:
at least one of R 1-3 is C 2 H n F p ; R 4-12 are each independently H or F; and R′ is O.
45 . The process of claim 33 wherein:
at least one of R 1-3 is C 2 H n F p ; R 4-12 are each independently H or F; and R′ is S, carbonyl or ester.
46 . The process of claim 33 wherein:
R 1-9 are independently H or F; R 10-12 are independently H, F, CH 3 , CH 2 F, CHF 2 or CF 3 ; at least one of R 10-12 is CH 3 , CH 2 F, CHF 2 or CF 3 ; and R′ is O.
47 . The process of claim 33 wherein:
R 1-9 are independently H or F; R 10-12 are independently H, F, CH 3 , CH 2 F, CHF 2 or CF 3 ; at least one of R 10-12 is CH 3 , CH 2 F, CHF 2 or CF 3 ; and R′ is S, carbonyl or ester.
48 . The process of claim 33 wherein:
R 1-9 are independently H, F, CH 3 , CH 2 F, CHF 2 or CF 3 ; at least one of R 10-12 is C 2 H n F p ; and R′ is O.
49 . The process of claim 33 wherein:
R 1-9 are independently H, F, CH 3 , CH 2 F, CHF 2 or CF 3 ; at least one of R 10-12 is C 2 H n F p ; and R′ is S, carbonyl or ester.
50 . A process for cleaning substrates comprising:
cleaning the substrates with an organic solvent; and removing the organic solvent from the substrates using a pressurized fluid solvent; wherein the organic solvent is of the structural formula:
wherein x, y, and z are each zero or one;
at least one of x, y, and z is one; R″ is selected from the group including:
H; F;
wherein R′″ is H, F or combinations of H and F;
R IV is selected from the group including:
H; F;
wherein R V is H, F or combinations of H and F; and
when R″ is H or F, R IV is not H or F;
R 1-3 are independently H, F, CH 3 , CH 2 F, CHF 2 or CF 3 ; and
R 4-12 are independently H or F.
51 . The process of claim 50 wherein:
R IV is: H or
wherein R V is H, F or combinations of H and F; and
R″ is:
wherein R′″ is H, F or combinations of H and F.
52 . The process of claim 50 wherein:
R″ is: H or
wherein R′″ is H, F or combinations of H and F; and
R IV is:
wherein R V is H, F or combinations of H and F.
53 . The process of claim 50 wherein:
R″ is: H; F; or
wherein R′″ is H, F or combinations of H and F; and
R IV is:
H;
F; or
wherein R V is H, F or combinations of H and F; and
when R″ is H or F, R IV is not H or F.
54 . The process of claim 50 wherein:
R 1-3 are independently H or CH 3 ; R 4-12 are each H; R IV is: H or
and
R″ is:
55 . The process of claim 50 wherein:
R 1-3 are independently H or CH 3 ; R 4-12 are each H; R″ is: H or
and
R IV is:
56 . The process of claim 50 wherein:
R 1-3 are independently H or CH 3 ; R 4-12 are each H; R″ is: H; or
R IV is:
H; or
and when R″ is H, R IV is not H.
57 . A process for cleaning substrates comprising:
cleaning the substrates with an organic solvent; and removing the organic solvent from the substrates using a pressurized fluid solvent; wherein the organic solvent is of the structural formula:
wherein R′ is
and R″ is
wherein R′″ is O and j is 1 or R′″ is N and j is 2;
n is an integer between zero and two;
R IV are each independently H, CH 3 or CH 2 CH 3 and k is an integer between zero and two inclusive; and
wherein R is C y H 2y+1 and y is an integer between one and (12−(3k+3n+x)) inclusive, and x is an integer between one and (12−(3k+y)), inclusive.
58 . A process for cleaning substrates comprising:
cleaning the substrates with an organic solvent; and removing the organic solvent from the substrates using a pressurized fluid solvent; wherein the organic solvent is of the structural formula:
wherein R′″ and j is 1 or R′″ is N and j is 2;
R IV are each independently H, CH 3 or CH 2 CH 3 and k is an integer between zero and two inclusive; and wherein R is C y H 2y+1 and y is an integer between one and (12−(3k+x)) inclusive, and x is an integer between one and (12−(3k+y)), inclusive.Join the waitlist — get patent alerts
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