Ring-opened norbornyl polymers

Details Ring-opened norbornyl polymers Ring-opened norbornyl polymers

1982-03-23

1983-10-25

Levin, Stanford M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

524106, 525366, 525367, 525369, 526141, 526142, 526283, C08F 812

Patent

active

044120443

ABSTRACT:
Polymers consisting essentially of the units (A) and (B) with an intrinsic viscosity in the range of 0.3 to 4.0, a content of the unit (A) of 10 to 90 mol % of the total structural units and a content of double bonds of trans-configuration of 40% or more are disclosed. The units (A) and (B) are represented by the structural formulas: ##STR1## wherein R' is hydrogen atom, an alkyl or phenyl, R.sup.2 is hydrogen or an alkyl, R.sup.3 is an alkyl. The polymers are preferably prepared by partial hydrolysis of the polymers consisting essentially of the unit (B).

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