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:
Apr. 27, 2010
Filed:
Feb. 03, 2005
Heide-anna Götz, Ottobrunn, DE;
Angelika Schmidt, Geleen, NL;
Mohamed Redoine Dahrouch, Concepción, CL;
Dionisius Maria Joseph Guillaume Gilissen, Eijsden, NL;
Heide-Anna Götz, Ottobrunn, DE;
Angelika Schmidt, Geleen, NL;
Mohamed Redoine Dahrouch, Concepción, CL;
Dionisius Maria Joseph Guillaume Gilissen, Eijsden, NL;
DSM IP Assets B.V., Heerlen, NL;
Abstract
Processes for the preparation of a block copolyetherester elastomer and block copolyether elastomers made thereby are provided having polyester hard blocks and poly(alkylene oxide) polyol soft blocks, wherein at least one aromatic dicarboxylic acid or an ester-forming derivative thereof, and at least one alkylene diol, are esterified with a poly(alkylene oxide) polyol, comprising an poly(propylene oxide), end capped with ethylene oxide, are esterified, an ethylene oxide content of between 22 and 90% by weight, relative to the total weight of the poly(alkylene oxide) polyol, and an unsaturation content, being the total content of vinyl and allyl groups, of less than 35 meq per kg poly(alkylene oxide) polyol.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile