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US 4,730,031 AGranted
Polymers of substituted 1,3-butadiene compounds having reactive silyl groups and process for their preparation
AssigneeNissan Chemical Industries, Ltd.
InventorsFumie Sato, Seiichi Nakahama, Akira Hirao, Misao Miyamoto, Kenichi Osawa, Toshihiro Ishii
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Abstract
A polymer obtained by the polymerization of a substituted 1,3-butadiene compound of the formula: ##STR1## wherein each of X.sub.1 and X.sub.2 is hydrogen or SiR.sub.1 R.sub.2 R.sub.3, provided that at least one of X.sub.1 and X.sub.2 is SiR.sub.1 R.sub.2 R.sub.3, wherein each of R.sub.1, R.sub.2 and R.sub.3 is halogen, lower alkyl or lower alkoxy, provided that R.sub.1, R.sub.2 and R.sub.3 are not lower alkyl at the same time.
Claims6
A 1,4-addition polymer of a silane 1,3-butadiene, having units of the formula:
- ##STR4## wherein each of R.sub.1, R.sub.2, and R.sub.3 is lower alkyl or lower alkoxy, provided that R.sub.1, R.sub.2 and R.sub.3 are not lower alkyl at the same time, wherein at least 70% of the units are of cis-form.
Dependencies are inferred from the claim text.