High temperature syndiotactic styrene polymer foam

US6051621A · kind A · utility

Assignee

• THE DOW CHEMICAL COMPANY · US

Inventors

• Kyung W. Suh · Seoul, KR
• Creston D. Shmidt · Nashport, US
• Daniel D. Imeokparia · Midland, US
• Alan Platt · Midland, US
• Thomas Wessel · Frankfurt, DE

Key dates

• Filing date: Jan 7, 1999
• Grant date: Apr 18, 2000
• Expiry date: Jan 7, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L83/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Foamed polymeric materials exhibiting improved heat resistant properties and improved mechanical properties, as compared with known foamed styrene polymer materials, are obtained by expanding a polymer blend including a syndiotactic styrene polymer and an amount of an amorphous polymeric material which will impart enhanced heat resistant properties to the blend.