Inventors:
Russell K. Griffith - Chagrin Falls OH
John F. Jones - Cuyahoga Falls OH
Assignee:
Standard Oil Company - Cleveland OH
International Classification:
C08F29104, C08F29106, C08F29112
Abstract:
Impact-resistant polymers which have low permeability to gases and vapors are prepared by polymerizing an olefinic nitrile, such as acrylonitrile, optionally with an acrylic ester, such as methyl acrylate, to at least about 70% conversion, and then introducing into the polymerization reaction medium a conjugated diene monomer, such as butadiene-1,3, and completing the polymerization reaction in the presence of said diene monomer.