David R. Warfel

Person

Exton, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Purification of polymer solutions
- Patent number 4,636,540
- Issue date Jan 13, 1987
- Atlantic Richfield Company
- David R. Warfel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Purification of polymer solutions
- Patent number 4,587,330
- Issue date May 6, 1986
- Atlantic Richfield Company
- David R. Warfel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Star elastomers in footwear compounds
- Patent number 4,408,006
- Issue date Oct 4, 1983
- Atlantic Richfield Company
- Ralph Milkovich
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Coated beads with macromonomer-styrene polymerizate coating
- Patent number 4,386,133
- Issue date May 31, 1983
- Atlantic Richfield Company
- Elizabeth A. Blommers
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Continuous process for making star-block copolymers
- Patent number 4,346,193
- Issue date Aug 24, 1982
- Atlantic Richfield Company
- David R. Warfel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing coated beads with macromonomer-styrene polyme...
- Patent number 4,333,970
- Issue date Jun 8, 1982
- Atlantic Richfield Company
- Elizabeth A. Blommers
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Direct production of elastomer compound from reactor solution
- Patent number 4,332,760
- Issue date Jun 1, 1982
- Atlantic Richfield Company
- David R. Warfel
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for producing plasticized elastomer-styrene coated beads
- Patent number 4,307,134
- Issue date Dec 22, 1981
- Atlantic Richfield Company
- Ralph Milkovich
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

David R. Warfel

Person

Patents Grantslast 30 patents

Purification of polymer solutions

Purification of polymer solutions

Star elastomers in footwear compounds

Coated beads with macromonomer-styrene polymerizate coating

Continuous process for making star-block copolymers

Process for producing coated beads with macromonomer-styrene polyme...

Direct production of elastomer compound from reactor solution

Process for producing plasticized elastomer-styrene coated beads