|
|
Article: HCFC-resistant styrenic alloy challenges ABS, HIPS in refrigerators. (hydrochlorofluorocarbons; foam insulations; high impact polystyrene)
- Article from:
- Plastics Technology
- Article date:
- December 1, 1991
- Author:
CopyrightCOPYRIGHT 1991 Gardner Publications, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
HCFC-Resistant Styrenic Alloy Challenges ABS, HIPS in Refrigerators
A developmental, extrusion-grade styrenic alloy specifically designed to provide improved chemical resistance to HCFC-blown polyurethane foam insulation in refrigerator and freezer liners is now being test marketed by the Dow Plastics unit of Dow Chemical Co., Midland, Mich.
The unnamed, proprietary alloy would be used to extrude sheets for thermoforming. It's formulated to overcome stress-cracking and blistering problems that have been encountered with traditional ABS and HIPS materials. Evidently, the HCFC blowing agents that have been developed as more "ozone-friendly" alternatives to ...