申请人:Schindler Wolfram
公开号:US20050101753A1
公开(公告)日:2005-05-12
The invention provides a method of increasing the elasticity of moisture-cured elastomers, which comprises adding to alkoxy-cross linking one-component compositions comprising an alkoxysilane-terminated polymer (A) containing end groups of the formula (1)
-A-Si(R)
a
(CH
3
)
3-a
(1)
a silane (B), of the general formula (2)
X—CH
2
—Si(R)
2
(CH
3
) (2)
where A is a divalent hydrocarbon radical, R is a methoxy or ethoxy group, X is a group R″O—, R″NH—, R′—O—CO—NH, R′—NH—CO—NH— or halogen,
R″ is hydrogen, an optionally halogen-substituted C
1-18
hydrocarbon radical or a radical R′—O—CO— or R′—NH—CO,
R′ is an optionally halogen-substituted C
1-8
hydrocarbon radical, and a is 1, 2 or 3.
本发明提供了一种增加湿气固化弹性体弹性的方法,该方法包括在烷氧基交联单组分组合物中加入烷氧基硅烷封端聚合物(A),该聚合物含有式(1)的末端基团
-A-Si(R)
a
(CH
3
)
3-a
(1)
硅烷(B),通式(2)
X-CH
2
-Si(R)
2
(CH
3
) (2)
其中 A 是二价烃基,R 是甲氧基或乙氧基,X 是基团 R″O-、R″NH-、R′-O-CO-NH、R′-NH-CO-NH- 或卤素、
R″ 是氢、任选卤素取代的 C
1-18
烃基或 R′-O-CO-或 R′-NH-CO-基、
R′是任选卤素取代的 C
1-8
烃基,a 为 1、2 或 3。