The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 22, 1999
Filed:
Dec. 08, 1997
Henk W Berendse, Arnhem, NL;
Gerard H Werumeus Buning, Schinnen, NL;
Christiaan Schroder, Geleen, NL;
DSM N.V., Heerlen, NL;
Abstract
The invention relates to a novel copolyester elastomer essentially made up of A: hard polyester segments made up of repeating units derived from an aliphatic diol and an aromatic dicarboxylic acid and B: soft polyester segments made up of repeating units derived from B1: an aliphatic carbonate and, if desired, up to 60% by weight of B, B2: an aliphatic diol and an aliphatic dicarboxylic acid or B3: a lactone, said hard and soft segments being bonded via ester bonds to form copolyesterester units and said copolyesterester units being connected to one another by a urethane group. The novel copolyester elastomer has an exceptionally high thermo-oxidative resistance and resistance to hydrolysis and is used, inter alia, in bellows, seals, pipes, hoses and cable sheathings.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile