-
公开(公告)号:US4999412A
公开(公告)日:1991-03-12
申请号:US372465
申请日:1989-06-28
CPC分类号: C08G18/0814 , C08G18/61 , C08G18/8041 , C08G77/458 , C08G77/54
摘要: Linear silicone-urethane copolymers which contain tertiary amine or quaternary ammonium groups on the polymer backbone of the general formula:{R'NR"SiMe.sub.2 (OSiMe.sub.2).sub.b OSiMe.sub.2 R"NR'CONHR"NHCO.sub.2 (Y)O.sub.2 CNHR"NHCO}wherein Me represents a methyl group; R' represents a hydrogen atom or a lower alkyl group having one to three carbon atoms; R" represents a divalent hydrocarbon group having at least three carbon atoms such as (CH.sub.2).sub.3-12 ; and Y represents (C.sub.z H.sub.2Z+1 N) where Z.gtoreq.5 and .ltoreq.22 and may be quaternized by use of a quaternizing agent R'X wherein X is selected from the group consisting of a halide atom, an acetate or higher carboxylate group, and an alkylsulfate group where the alkyl moiety has 1 to 12 carbon atoms and where R', R" and b may vary within each copolymer are described. These copolymers may be cast from organic solvents or from aqueous dispersions, providing films which possess high degrees of clarity and unexpectedly high strength and elasticity.
-
公开(公告)号:US5166243A
公开(公告)日:1992-11-24
申请号:US413095
申请日:1989-09-27
申请人: Robert S. Neale
发明人: Robert S. Neale
IPC分类号: C08G77/388 , C08G77/54 , C08L83/04
CPC分类号: C08G77/54 , C08G77/388 , C08L83/04 , C08G77/26 , C08G77/70
摘要: Novel polyorganosiloxane cross-linkers for incorporation into conventional room temperature vulcanizable (RTV) sealant formulations, and the RTV sealants into which these cross-linkers are compounded, are disclosed.
摘要翻译: 公开了用于并入常规室温可硫化(RTV)密封剂配方的新型聚有机硅氧烷交联剂,以及这些交联剂混合到其中的RTV密封剂。
-