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Gilbert Witschard
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Grand Island, NY, US
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last 30 patents
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Patent Grant
Vinyl halide polymer blends of enhanced impact resistance
Patent number
4,423,188
Issue date
Dec 27, 1983
Occidental Chemical Corporation
Gilbert Witschard
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Vinyl halide polymer blends of enhanced impact resistance
Patent number
4,413,092
Issue date
Nov 1, 1983
Occidental Chemical Corporation
Gilbert Witschard
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Vinyl halide polymer blends of enhanced impact resistance
Patent number
4,319,002
Issue date
Mar 9, 1982
Hooker Chemicals & Plastics Corp.
Gilbert Witschard
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polymer compositions having enhanced low temprature impact resistan...
Patent number
4,192,828
Issue date
Mar 11, 1980
Hooker Chemicals & Plastics Corp.
Gilbert Witschard
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Post bulk polymerization process for polyvinyl halide and compositi...
Patent number
4,155,899
Issue date
May 22, 1979
Hooker Chemicals & Plastics Corp.
Anthony L. Lemper
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Post bulk polymerization process for polyvinyl halide and compositi...
Patent number
4,137,216
Issue date
Jan 30, 1979
Hooker Chemicals & Plastics Corp.
Anthony L. Lemper
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for molecular weight lowering of polyvinyl halides
Patent number
3,970,612
Issue date
Jul 20, 1976
Hooker Chemicals & Plastics Corporation
Gilbert Witschard
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...