Open-cell/microporous molded article

US4499211A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Axel Walch · Baldham, DE
• Walter Seifried · Wiesbaden, DE
• Wolfgang Michel · Altötting, DE
• Jurgen Kuhls · Burghausen, DE
• Jurgen Wildhardt · Wallrabenstein, DE

Key dates

• Filing date: Jul 27, 1982
• Grant date: Feb 12, 1985
• Expiry date: Jul 27, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2329/04
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The present invention relates to molded articles of an open-cell structure, containing a copolymer which is comprised of copolymerized, fluorinated olefin, copolymerized vinyl acetate and optionally copolymerized olefin, the acetate groups of the copolymer being optionally saponified into OH groups. The molded articles possess an inherent latent structural convertibility and have effective pores of a diameter in the range from 0.002 to 10 .mu.m. The invention further includes processes for the preparation of the specified molded articles and processes for converting their structure. The invention also relates to several uses of molded articles according to the invention.