Acetal polymer blends

US5045607A · kind A · utility

Assignee

• Hoechst Celanese Corporation · US

Inventors

• Kurt F. Wissbrun · Short Hills, US
• Hongkyu Kim · Berkeley Heights, US
• George L. Collins · New Providence, US
• Diane Terrone · Toms River, US

Key dates

• Filing date: Apr 5, 1989
• Grant date: Sep 3, 1991
• Expiry date: Apr 5, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L59/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

There are provided new moldable blends of a normally crystalline acetal polymer and a normally non-crystalline elastomeric copolymer of about 15 to 45 mol %, preferably about 25 to 35 mol % of trioxane, about 55 to 85 %, preferably about 65 to 75 mol % of 1,3-dioxolane, said mol percents based on the total of trioxane and 1,3-dioxolane, and about 0.005 to 0.15 wt. %, preferably about 0.05 to 0.12 wt. % of 1,4-butanediol diglycidyl ether or butadiene diepoxide as a bifunctional monomer, based on the total weight of copolymer.