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Leslie E. Hawker
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South Charleston, WV, US
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last 30 patents
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Patent Grant
Polyurethane elastomers prepared from polyol or polymer/polyol-chai...
Patent number
4,312,973
Issue date
Jan 26, 1982
Union Carbide Corporation
Frank E. Critchfield
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Mixtures of extenders and polyols or polymer/polyols useful in poly...
Patent number
4,226,756
Issue date
Oct 7, 1980
Union Carbide Corporation
Frank E. Critchfield
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polymer/polyols from high ethylene oxide content polyols
Patent number
4,125,505
Issue date
Nov 14, 1978
Union Carbide Corporation
Frank E. Critchfield
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Energy absorbing polyurethane-polyurea cellular elastomers
Patent number
3,939,106
Issue date
Feb 17, 1976
Union Carbide Corporation
Raymond A. Dunleavy
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...