Building Board

Abstract

A building board for interior construction selected from the group consisting of mineral fiber boards, gypsum fiber boards and cement boards and containing from 1 to 25% by weight of zeolites.

1 . A building board for interior construction selected from the group consisting of: mineral fiber boards, gypsum fiber boards and cement boards, and comprising from 1 to 25% by weight of naturally occurring zeolites. 
   
   
       2 . The building board according to  claim 1 , wherein said zeolites have a grain size of≦200 μm. 
   
   
       3 . The building board according to  claim 1 , wherein said zeolites have d50 values of from 30 to 90 μm. 
   
   
       4 . The building board according to  claim 1 , wherein said zeolites have a mineral phase composition selected from the group consisting of clinoptilolite, heulandite, chabasite, phillipsite, morderite and mixtures thereof. 
   
   
       5 . The building board according to  claim 1 , wherein said zeolite is employed in a native form. 
   
   
       6 . The building board according to  claim 1 , wherein said building board is a mineral fiber board. 
   
   
       7 . The building board according to  claim 1 , wherein said building board is a gypsum fiber board. 
   
   
       8 . The building board according to  claim 1 , wherein said building board is a cement board. 
   
   
       9 . The building board according to  claim 1 , wherein less than 3% by weight of organic substances are contained in said building board. 
   
   
       10 . A method for reducing air pollutants comprising: using a building board selected from the group consisting of: mineral fiber boards, gypsum fiber boards and cement boards, and comprising from 1 to 25% by weight of naturally occurring zeolites in interior rooms. 
   
   
       11 . The method according to  claim 10 , wherein said air pollutants are selected from the group consisting of: formaldehyde, benzene, ammonia, tobacco smoke and mixtures thereof. 
   
   
       12 . A method for reducing offensive smell in interior rooms, said method comprises: using a building board selected from the group consisting of: mineral fiber boards, gypsum fiber boards, and cement boards and comprising from 1 to 25% by weight of naturally occurring zeolites. 
   
   
       13 . The method according to  claim 12 , wherein said smells are derived from food and hygienic areas.