Radiation Shielding Wood Or Laminate Faced Door Having A High Fire Rating And Method For Making Same

Abstract

A radiation shielding wood or laminate faced door having a high fire rating and method for making same are disclosed. The radiation shielding door comprises a non-combustible core having a first face, a second face. A supporting material is in contact with the non-combustible core. A first radiation shield is in contact with the first face of the non-combustible core. An intumescent material is in contact with the supporting material. The method of manufacturing a radiation shielding door includes the steps of providing an non-combustible core having a first face, a second face; securing a supporting material to the non-combustible core; adhering a first radiation shield to the first face of the non-combustible core; and providing an intumescent material to the supporting material.

1 - 9 . (canceled) 
   
   
       10 . A method of manufacturing a radiation shielding door having a fire rating comprising:
 providing an non-combustible core having a first face, a second face;   securing a supporting material to the non-combustible core;   adhering a first radiation shield to the first face of the non-combustible core; and   providing an intumescent material to the supporting material.   
   
   
       11 . The method of  claim 10 , further comprising:
 adhering a second radiation shield to the second face of the non-combustible core.   
   
   
       12 . The method of  claim 11 , wherein the step of adhering a first radiation shield to the first face of the non-combustible core comprises pre-treating the first radiation shield; and the step of adhering a second radiation shield to the second face of the non-combustible core comprises pre-treating the second radiation shield. 
   
   
       13 . The method of  claim 11 , further comprising:
 adhering a first cover to the first radiation shield; and   adhering a second cover to the second radiation shield.   
   
   
       14 . The method of  claim 10 , wherein the non-combustible core comprises a mineral core. 
   
   
       15 . The method of  claim 14 , wherein the mineral core comprises calcium silicate. 
   
   
       16 . The method of  claim 10 , wherein the radiation shield comprises lead. 
   
   
       17 . The method of  claim 10 , wherein the supporting material comprises Tectonite™. 
   
   
       18 . The method of  claim 10 , wherein the radiation shielding door has a fire rating of at least 45 minutes. 
   
   
       19 . The method of  claim 17 , wherein the radiation shielding door has a fire rating of at least 1 hour. 
   
   
       20 . A method of making a multi-layer material comprising a layer of radiation shield and a layer of a non-combustible material, comprising providing a layer of a cross linking polyvinyl acetate emulsion adhesive between the radiation shield layer and the non-combustible material layer. 
   
   
       21 . The method of  claim 20 , further comprising pre-treating a surface of the radiation shield layer between the radiation shield layer and the non-combustible material layer. 
   
   
       22 . The method of  claim 20 , wherein the adhesive is Multibond 2000. 
   
   
       23 . The method according to  claim 20 , wherein the multi-layer material includes a cover layer in contact with the side of the radiation shield layer opposite to that which is in contact with the non-combustible material layer. 
   
   
       24 . The method of  claim 23 , further comprising pre-treating a surface of the radiation shield layer between the radiation shield layer and the cover layer. 
   
   
       25 . The method according to  claim 23 , wherein a layer of adhesive is provided between the cover layer and the radiation shield layer. 
   
   
       26 . The method of  claim 20  wherein the radiation shield layer comprises lead. 
   
   
       27 . The method of  claim 20  wherein the non-combustible material layer comprises a mineral core.