Dennis M. Hajnik

Person

West Chester, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method for improving the expandability of styrenic polymer particles
- Patent number 5,240,967
- Issue date Aug 31, 1993
- Arco Chemical Technology, L.P.
- Fred M. Sonnenberg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of fire-retardant expandable thermoplas...
- Patent number 5,030,663
- Issue date Jul 9, 1991
- ARCO Chemical Technology, Inc.
- Fred M. Sonnenberg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method of adding flame retardant to vinyl aromatic polymers made in...
- Patent number 4,994,499
- Issue date Feb 19, 1991
- ARCO Chemical Technology, Inc.
- Fred M. Sonnenberg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of expandable vinyl aromatic polymer pa...
- Patent number 4,980,382
- Issue date Dec 25, 1990
- ARCO Chemical Technology, Inc.
- Fred M. Sonnenberg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Use of rubbery copolymers to decrease coffee leakage in foam cups
- Patent number 4,785,022
- Issue date Nov 15, 1988
- ARCO Chemical Company
- Fred M. Sonnenberg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Coating of flame retardants onto a seed bead
- Patent number 4,761,432
- Issue date Aug 2, 1988
- ARCO Chemical Company
- Fred M. Sonnenberg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Higher molecular weight thermoplastics having multimodal molecular...
- Patent number 4,673,694
- Issue date Jun 16, 1987
- Atlantic Richfield Company
- Bernard H. Meyer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Higher molecular weight thermoplastics having multimodal molecular...
- Patent number 4,663,357
- Issue date May 5, 1987
- Atlantic Richfield Company
- Bernard H. Meyer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Dennis M. Hajnik

Person

Patents Grantslast 30 patents

Method for improving the expandability of styrenic polymer particles

Process for the preparation of fire-retardant expandable thermoplas...

Method of adding flame retardant to vinyl aromatic polymers made in...

Process for the preparation of expandable vinyl aromatic polymer pa...

Use of rubbery copolymers to decrease coffee leakage in foam cups

Coating of flame retardants onto a seed bead

Higher molecular weight thermoplastics having multimodal molecular...

Higher molecular weight thermoplastics having multimodal molecular...