Patent · US Expired

Ring-opened norbornyl polymers

US4412044A · kind A · utility

5Cited by
0References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 23, 1982
Grant dateOct 25, 1983
Priority date
Expiry dateMar 23, 2002

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G61/08
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

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).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.