Phenol extended polyurethanes prepared by RIM process

Details Phenol extended polyurethanes prepared by RIM process Phenol extended polyurethanes prepared by RIM process

1980-12-29

1982-02-09

Cockeram, H. S.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

26432816, 26432817, 528 65, 528 85, 528502, B29F 100, C08G 1832

Patent

active

043149626

ABSTRACT:
Polyurethanes can be produced using dihydroxyaromatic compounds as chain extenders. Preferred polyurethanes of this type are RIM (reaction injection molding) molded products or cast elastomers. The dihydroxyaromatic compounds are preferably selected from:

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patent: 3933727 (1976-11-01), Schmid
patent: 4203889 (1980-05-01), Chang et al.

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