Chester Stephen Sheppard

Person

Tonawanda, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Tertiary aliphatic amidazo compound
- Patent number 4,219,476
- Issue date Aug 26, 1980
- Pennwalt Corporation
- Ronald E. MacLeay
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Azo monomer useful in polymerization systems
- Patent number 4,218,370
- Issue date Aug 19, 1980
- Pennwalt Corporation
- Chester S. Sheppard
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Peroxide free radical initiators containing ultraviolet light stabi...
- Patent number 4,129,586
- Issue date Dec 12, 1978
- Pennwalt Corporation
- Chester S. Sheppard
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Crosslinking of polymers with azo-esters
- Patent number 4,129,531
- Issue date Dec 12, 1978
- Pennwalt Corporation
- Kurt Rauer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Azo compounds containing acylating function and azo containing poly...
- Patent number 4,101,522
- Issue date Jul 18, 1978
- Pennwalt Corporation
- Chester Stephen Sheppard
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Compounds having both peroxy and aliphatic azo groups
- Patent number 4,088,642
- Issue date May 9, 1978
- Pennwalt Corporation
- Chester S. Sheppard
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of block polymers using polyazo sequential free radical...
- Patent number 4,075,286
- Issue date Feb 21, 1978
- Pennwalt Corporation
- Ronald Edward MacLeay
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Tertiary aliphatic alpha-peroxyazo compounds
- Patent number 4,075,199
- Issue date Feb 21, 1978
- Pennwalt Corporation
- Ronald Edward MacLeay
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Coupled peroxides
- Patent number 4,072,810
- Issue date Feb 7, 1978
- Pennwalt Corporation
- Antonio J. D'Angelo
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymerization of ethylenically unsaturated monomers employing seco...
- Patent number 4,069,377
- Issue date Jan 17, 1978
- Pennwalt Corporation
- Ronald Edward MacLeay
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymerization of ethylenically unsaturated monomers employing cata...
- Patent number 4,063,012
- Issue date Dec 13, 1977
- Pennwalt Corporation
- Ronald Edward MacLeay
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Azo free radical initiators containing ultraviolet light stabilizin...
- Patent number 4,055,714
- Issue date Oct 25, 1977
- Pennwalt Corporation
- Chester S. Sheppard
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for polymerizing unsaturated monomers and unsaturated polye...
- Patent number 4,048,423
- Issue date Sep 13, 1977
- Pennwalt Corporation
- Ronald Edward MacLeay
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Bisazo free radical initiators containing ultraviolet light stabili...
- Patent number 4,045,426
- Issue date Aug 30, 1977
- Pennwalt Corporation
- Chester S. Sheppard
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Azo-peroxide free radical initiators containing ultraviolet light s...
- Patent number 4,045,427
- Issue date Aug 30, 1977
- Pennwalt Corporation
- Chester S. Sheppard
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Peroxide free radical initiators containing ultraviolet light stabi...
- Patent number 4,042,773
- Issue date Aug 16, 1977
- Pennwalt Corporation
- Chester S. Sheppard
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Secondary-aliphatic .alpha.-substituted azoalkanes
- Patent number 4,025,502
- Issue date May 24, 1977
- Pennwalt Corporation
- Ronald Edward MacLeay
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Aliphatic alpha-(hydroperoxy) azo compounds and salts thereof
- Patent number 4,010,152
- Issue date Mar 1, 1977
- Pennwalt Corporation
- Ronald Edward MacLeay
Information Patent Grant
Primary-aliphatic .alpha.-hydroxy azoalkanes
- Patent number 4,009,157
- Issue date Feb 22, 1977
- Pennwalt Corporation
- Ronald Edward MacLeay
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Tertiary alkyl semicarbazides and their method of preparation
- Patent number 4,008,273
- Issue date Feb 15, 1977
- Pennwalt Corporation
- Ronald Edward MacLeay
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Unsymmetrical tertiary-aliphatic azoalkanes
- Patent number 4,007,165
- Issue date Feb 8, 1977
- Pennwalt Corporation
- Ronald Edward MacLeay
Information Patent Grant
Tertiary-aliphatic amidazo compounds
- Patent number 4,001,207
- Issue date Jan 4, 1977
- Pennwalt Corporation
- Ronald Edward MacLeay
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Bis- and trisazo sequential free radical initiators used in prepari...
- Patent number 3,987,024
- Issue date Oct 19, 1976
- Pennwalt Corporation
- Ronald Edward MacLeay
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Coupled peroxides
- Patent number 3,965,145
- Issue date Jun 22, 1976
- Pennwalt Corporation
- Antonio Joseph D'Angelo
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polymer crosslinking with coupled peroxides
- Patent number 3,963,673
- Issue date Jun 15, 1976
- Pennwalt Corporation
- Antonio Joseph D'Angelo
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Tertiary aliphatic alpha-(sulfo)-azo compounds
- Patent number 3,962,210
- Issue date Jun 8, 1976
- Pennwalt Corporation
- Ronald Edward MacLeay
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Symmetrical bis(unsymmetrical tertiary-alkyl and tertiary-aralkyl a...
- Patent number 3,957,750
- Issue date May 18, 1976
- Pennwalt Corporation
- Ronald Edward MacLeay
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
N-monohalomonosubstituted ureas
- Patent number 3,956,366
- Issue date May 11, 1976
- Pennwalt Corporation
- Chester Stephen Sheppard
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Azo free radical initiators containing ultraviolet light stabilizin...
- Patent number 3,956,269
- Issue date May 11, 1976
- Pennwalt Corporation
- Chester S. Sheppard
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Symmetrical bis(unsymmetrical tertiary-alkyl and tertiary- aralkyl...
- Patent number 3,937,761
- Issue date Feb 10, 1976
- Pennwalt Corporation
- Ronald Edward Mac Leay
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Chester Stephen Sheppard

Person

Patents Grantslast 30 patents

Tertiary aliphatic amidazo compound

Azo monomer useful in polymerization systems

Peroxide free radical initiators containing ultraviolet light stabi...

Crosslinking of polymers with azo-esters

Azo compounds containing acylating function and azo containing poly...

Compounds having both peroxy and aliphatic azo groups

Preparation of block polymers using polyazo sequential free radical...

Tertiary aliphatic alpha-peroxyazo compounds

Coupled peroxides

Polymerization of ethylenically unsaturated monomers employing seco...

Polymerization of ethylenically unsaturated monomers employing cata...

Azo free radical initiators containing ultraviolet light stabilizin...

Process for polymerizing unsaturated monomers and unsaturated polye...

Bisazo free radical initiators containing ultraviolet light stabili...

Azo-peroxide free radical initiators containing ultraviolet light s...

Peroxide free radical initiators containing ultraviolet light stabi...

Secondary-aliphatic .alpha.-substituted azoalkanes

Aliphatic alpha-(hydroperoxy) azo compounds and salts thereof

Primary-aliphatic .alpha.-hydroxy azoalkanes

Tertiary alkyl semicarbazides and their method of preparation

Unsymmetrical tertiary-aliphatic azoalkanes

Tertiary-aliphatic amidazo compounds

Bis- and trisazo sequential free radical initiators used in prepari...

Coupled peroxides

Polymer crosslinking with coupled peroxides

Tertiary aliphatic alpha-(sulfo)-azo compounds

Symmetrical bis(unsymmetrical tertiary-alkyl and tertiary-aralkyl a...

N-monohalomonosubstituted ureas

Azo free radical initiators containing ultraviolet light stabilizin...

Symmetrical bis(unsymmetrical tertiary-alkyl and tertiary- aralkyl...