William E. Leistner

Person

New York, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Coupled benzotriazole and benzophenone UV absorbers
- Patent number 5,466,819
- Issue date Nov 14, 1995
- Fairmount Chemical Company, Inc.
- William E. Leistner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Coupled benzotriazole and benzophenone UV absorbers
- Patent number 5,373,037
- Issue date Dec 13, 1994
- Fairmount Chemical Company, Inc.
- William E. Leistner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Coupled benzotriazole and benzophenone UV absorbers
- Patent number 5,362,881
- Issue date Nov 8, 1994
- Fairmount Chemical Company, Inc.
- William E. Leistner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Asymmetrical benzotriazolylphenols
- Patent number 5,360,850
- Issue date Nov 1, 1994
- Fairmount Chemical Company, Inc.
- Semyon Moshchitsky
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Asymmetrical benzotriazolylphenols
- Patent number 5,292,890
- Issue date Mar 8, 1994
- Fairmount Chemical Company, Inc.
- Semyon Moshchitsky
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Fluorenol catalyzed reduction of o-nitroazobenzenes and 2-aryl-2H-b...
- Patent number 5,262,541
- Issue date Nov 16, 1993
- Fairmont Chemical Company, Inc.
- Semyon Moshchitsky
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing 2,2'-methylene-bis(6-(2H-benzotriazol-2-yl)-4...
- Patent number 5,237,071
- Issue date Aug 17, 1993
- Fairmount Chemical Company, Inc.
- William E. Leistner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing substituted 2,2'-methylene-bis-[6-(2H-benzotr...
- Patent number 5,166,355
- Issue date Nov 24, 1992
- Fairmount Chemical Co., Inc.
- William E. Leistner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Vinyl benzyl 2,2,6,6-tetramethyl piperidines
- Patent number 4,767,834
- Issue date Aug 30, 1988
- Adeka Argus Chemical Co., Ltd.
- William E. Leistner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Vinyl benzyl 2,2,6,6-tetramethyl piperidines
- Patent number 4,692,485
- Issue date Sep 8, 1987
- Adeka Argus Chemical Co., Ltd.
- William E. Leistner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Oligomers of 2,2,6,6-tetramethylpiperidinol polycarboxylic acid est...
- Patent number 4,529,760
- Issue date Jul 16, 1985
- Adeka Argus Chemical Co., Ltd.
- William E. Leistner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Phenylethylidene-substituted phenyl polyphosphites
- Patent number 4,463,112
- Issue date Jul 31, 1984
- William E. Leistner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyethers containing 2,2,6,6-tetramethyl piperidinyl carboxylic ac...
- Patent number 4,460,725
- Issue date Jul 17, 1984
- William E. Leistner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hindered piperidyl light stabilizers
- Patent number 4,450,248
- Issue date May 22, 1984
- Phoenix Chemical Corporation
- William E. Leistner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1,3-Dicarbonyl compounds and polyvinyl halide resin compositions co...
- Patent number 4,381,360
- Issue date Apr 26, 1983
- Phoenix Chemical Corporation
- William E. Leistner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Stabilizer compositions and polyvinyl halide resin compositions con...
- Patent number 4,371,651
- Issue date Feb 1, 1983
- Phoenix Chemical Corporation
- William E. Leistner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Stabilized vinyl chloride polymer comprising a phenylethylidene ary...
- Patent number 4,346,025
- Issue date Aug 24, 1982
- Adeka Argus Chemical Co., Ltd.
- William E. Leistner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Inorganic organic coester stabilizers
- Patent number 4,257,927
- Issue date Mar 24, 1981
- Argus Chemical Corp.
- William E. Leistner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyhydric phenol coester stabilizers
- Patent number 4,233,414
- Issue date Nov 11, 1980
- Argus Chemical Corporation
- William E. Leistner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyhydric phenol coester stabilizers
- Patent number 4,174,297
- Issue date Nov 13, 1979
- Argus Chemical Corporation
- William E. Leistner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Inorganic and organic acid coester stabilizers
- Patent number 4,146,517
- Issue date Mar 27, 1979
- Argus Chemical Corporation
- William E. Leistner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Carbonate ester stabilizers for polymers
- Patent number 4,104,217
- Issue date Aug 1, 1978
- Argus Chemical Corporation
- William E. Leistner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

William E. Leistner

Person

Patents Grantslast 30 patents

Coupled benzotriazole and benzophenone UV absorbers

Coupled benzotriazole and benzophenone UV absorbers

Coupled benzotriazole and benzophenone UV absorbers

Asymmetrical benzotriazolylphenols

Asymmetrical benzotriazolylphenols

Fluorenol catalyzed reduction of o-nitroazobenzenes and 2-aryl-2H-b...

Process for preparing 2,2'-methylene-bis(6-(2H-benzotriazol-2-yl)-4...

Process for preparing substituted 2,2'-methylene-bis-[6-(2H-benzotr...

Vinyl benzyl 2,2,6,6-tetramethyl piperidines

Vinyl benzyl 2,2,6,6-tetramethyl piperidines

Oligomers of 2,2,6,6-tetramethylpiperidinol polycarboxylic acid est...

Phenylethylidene-substituted phenyl polyphosphites

Polyethers containing 2,2,6,6-tetramethyl piperidinyl carboxylic ac...

Hindered piperidyl light stabilizers

1,3-Dicarbonyl compounds and polyvinyl halide resin compositions co...

Stabilizer compositions and polyvinyl halide resin compositions con...

Stabilized vinyl chloride polymer comprising a phenylethylidene ary...

Inorganic organic coester stabilizers

Polyhydric phenol coester stabilizers

Polyhydric phenol coester stabilizers

Inorganic and organic acid coester stabilizers

Carbonate ester stabilizers for polymers