申请人:Mobay Chemical Corporation
公开号:EP0056145A1
公开(公告)日:1982-07-21
The instant invention is directed to a process for the production of inorganic-organic foams comprising reacting an organic, nonionic hydrophilic polyisocyanate with an aqueous alkali metal silicate in the presence of a catalyst and a blowing agent, characterized in that said aqueous alkali metal silicate contains from 0.1 to 15% by weight, based on the weight of the aqueous alkali metal silicate, of a compound of the formula:
wherein A is N, P or S,
wherein R, R', R" und R''' may be the same or different and are allyl, vinyl, C, to C17 alkyl or mono- or polyhydroxy substituted alkyl, C6 to C10 aryl or mono- or polyhydroxy substituted aryl, C7 to C22 aralkyl or mono- or polyhydroxy substituted aralkyl, or C7 to C22 alkaryl or mono- or polyhydroxy substituted alkaryl,
wherein x is O when A is S,
wherein x is 1 when A is N or P, and
wherein B ist OH, halogen or OR"" wherein R'''' represents
C, to C,2 alkyl, with the proviso that when A is S, B is not OR''''.
本发明涉及一种生产无机-有机泡沫塑料的工艺,包括在催化剂和发泡剂存在下,使有机非离子亲水性多异氰酸酯与水基碱金属硅酸盐反应,其特征在于,所述水基碱金属硅酸盐含有以水基碱金属硅酸盐重量为基准,按重量计0.1%至15%的式化合物:
其中 A 是 N、P 或 S、
其中 R、R'、R "和 R'''可以相同或不同,并且是烯丙基、乙烯基、C, 至 C17 烷基或单羟基或多羟基取代的烷基、C6 至 C10 芳基或单羟基或多羟基取代的芳基、C7 至 C22 芳烷基或单羟基或多羟基取代的芳烷基,或 C7 至 C22 芳烷基或单羟基或多羟基取代的芳烷基、
其中当 A 为 S 时,x 为 O
当 A 为 N 或 P 时,x 为 1,以及
其中 B 是 OH、卤素或 OR"",其中 R'''' 代表
C,至 C,2 烷基,但 A 为 S 时,B 不是 OR''''。