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Coplay, PA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Process for preparing triacetone amine and other oxopiperidines
Patent number
4,831,146
Issue date
May 16, 1989
Air Products and Chemicals, Inc.
Denise B. Taylor
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polyurethane system using monotertiary-alkyltoluenediamine as a cro...
Patent number
4,816,543
Issue date
Mar 28, 1989
Air Products and Chemicals, Inc.
William F. Burgoyne
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process of preparing polyurethanes cured with 2,6-idaminobenzoic ac...
Patent number
4,810,769
Issue date
Mar 7, 1989
Air Products and Chemicals, Inc.
Jeremiah P. Casey
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the preparation of polyisocyanate prepolymers and polyu...
Patent number
4,786,703
Issue date
Nov 22, 1988
Air Products and Chemicals, Inc.
William E. Starner
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Mono-tertiary-alkylated toluenediamine and derivatives
Patent number
4,745,223
Issue date
May 17, 1988
Air Products and Chemicals, Inc.
William F. Burgoyne
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Urethane linked hydroxy aromatic isocyanates
Patent number
4,724,256
Issue date
Feb 9, 1988
Air Products and Chemicals, Inc.
William E. Starner
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing polyurethane/urea elastomers
Patent number
4,722,989
Issue date
Feb 2, 1988
Air Products and Chemicals, Inc.
William E. Starner
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Low melting urethane linked toluenediisocyanates
Patent number
4,683,279
Issue date
Jul 28, 1987
Air Products and Chemicals, Inc.
Barton Milligan
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Hydroxy aromatic compounds from alkali metal hydroxide and mononucl...
Patent number
4,533,763
Issue date
Aug 6, 1985
Air Products and Chemicals, Inc.
Barton Milligan
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polyhydroxy aromatic compounds from alkali metal hydroxide and mono...
Patent number
4,533,765
Issue date
Aug 6, 1985
Air Products and Chemicals, Inc.
Barton Milligan
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Reinforced polyurethane tires
Patent number
4,519,432
Issue date
May 28, 1985
Lim International S.A.
Andreas R. Schmidt
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Polyurethane compositions having low hysteresis
Patent number
4,507,459
Issue date
Mar 26, 1985
Air Products and Chemicals, Inc.
Andreas R. Schmidt
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Aromatic amines from alkali metal amide aminating agent and aromatic
Patent number
4,501,922
Issue date
Feb 26, 1985
Air Products and Chemicals, Inc.
Roland E. Grandin
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Nitration of aromatics with nitrogen oxides in trifluoroacetic acid
Patent number
4,465,876
Issue date
Aug 14, 1984
Air Products and Chemicals, Inc.
Barton Milligan
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polyurethanes prepated using poly(silyldiamines)
Patent number
4,448,939
Issue date
May 15, 1984
Air Products and Chemicals, Inc.
Michael J. Fasolka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Synthesis of isocyanates from nitroalkanes
Patent number
4,341,898
Issue date
Jul 27, 1982
Air Products and Chemicals, Inc.
Barton Milligan
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Synthesis of alkyl amino benzenes from alkyl diamino benzenes
Patent number
4,329,501
Issue date
May 11, 1982
Air Products and Chemicals, Inc.
Barton Milligan
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Production of higher amines by the gas phase hydrogenation of nitriles
Patent number
4,289,908
Issue date
Sep 15, 1981
Air Products and Chemicals, Inc.
Eckhart R. Becker
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for refining aqueous acid mixtures utilized in nitration of...
Patent number
4,257,986
Issue date
Mar 24, 1981
Air Products and Chemicals, Inc.
Barton Milligan
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Toluene diamine from non-washed dinitrotoluene
Patent number
4,224,249
Issue date
Sep 23, 1980
Air Products and Chemicals, Inc.
Nance D. Kunz
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Dinitration of nitrobenzotrifluoride
Patent number
3,984,488
Issue date
Oct 5, 1976
Air Products and Chemicals, Inc.
Barton Milligan
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Selective nitration of aromatic and substituted aromatic compositions
Patent number
3,957,889
Issue date
May 18, 1976
Air Products and Chemicals, Inc.
Barton Milligan
C07 - ORGANIC CHEMISTRY