Rim elastomers with improved catalyst efficiency

Details Rim elastomers with improved catalyst efficiency Rim elastomers with improved catalyst efficiency

1982-09-13

1984-09-04

Anderson, Philip E.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264 50, 264 53, 264DIG5, 264DIG83, 521126, 521127, B29D 2700

Patent

active

044696574

ABSTRACT:
The invention is a method for making reaction injection molded polyurethane of improved properties and decreased catalyst usage. The product is formulated by placing the tin catalyst in the A-component (isocyanate component) rather than in the B-component (polyol side). Reaction injection molded elastomers are useful as molded articles of commerce including, but not limited to, vehicle body parts.

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patent: 2950263 (1960-08-01), Abbotson et al.
patent: 3012008 (1961-12-01), Lister
patent: 3194773 (1965-07-01), Hostettler
patent: 3344162 (1967-09-01), Rowton
patent: 3362979 (1968-01-01), Bentley
patent: 4048105 (1977-09-01), Salisbury
patent: 4055548 (1977-10-01), Carleton et al.
patent: 4102833 (1978-07-01), Salisbury
patent: 4111861 (1978-09-01), Godlewski

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