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Robert Kufrin
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Chicago, IL, US
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last 30 patents
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Patent Grant
Polyester resins for polyurethane foams
Patent number
4,404,295
Issue date
Sep 13, 1983
Witco Chemical Corporation
Carl Bernstein
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyester resins for polyurethane foams prepared by reacting two di...
Patent number
4,349,662
Issue date
Sep 14, 1982
Witco Chemical Corporation
Carl Bernstein
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyether polyols and polyurethane foams made therefrom
Patent number
4,110,268
Issue date
Aug 29, 1978
Witco Chemical Corporation
Kermit D. Longley
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...