Patent ID: 7695651
Filing Date: 2010-04-13
Classification: C08K,C09D,C09K,Y10T

Abstract:
1. A flame retardant additive, comprising: (A) 80 to 99.8% by weight of a gassing agent selected from the group consisting of compounds containing both phosphorus and nitrogen atoms and mixtures of a phosphorus-containing compound and a nitrogen-containing compound: and (B) 0.2 to 20% by weight of a silicone-base water repellent treating agent comprising a co-hydrolytic condensate obtained through co-hydrolytic condensation of (i) 100 parts by weight of an organosilicon compound of the general formula (1) and (ii) 0.5 to 49 parts by weight of an amino group-containing alkoxysilane of the general formula (2) or a partial hydrolyzate thereof, and (iii) 0.1 to 20 parts by weight of a bis(alkoxysilyl) group-containing compound of the general formula (3) or a partial hydrolyzate thereof in the presence of an organic or inorganic acid, wherein R R a is a positive number of 0.75 to 1.5, b is a positive number of 0.2 to 3, wherein 0.9<a+b≦4, wherein R R R R n is 0 or 1, wherein R Y is —R—(SiR R R is a divalent C m is an integer of 1 to 9, and k is 0 or 1.