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:
Jul. 07, 2009
Filed:
Sep. 27, 2006
Daniel Joseph Brunelle, Burnt Hills, NY (US);
Martino Colonna, Bologna, IT;
Corrado Berti, Ravenna, IT;
Maurizio Fiorini, Bologna, IT;
Enrico Binassi, Bologna, IT;
Daniel Joseph Brunelle, Burnt Hills, NY (US);
Martino Colonna, Bologna, IT;
Corrado Berti, Ravenna, IT;
Maurizio Fiorini, Bologna, IT;
Enrico Binassi, Bologna, IT;
SABIC Innovative Plastics IP BV, Bergen op Zoom, NL;
Abstract
The present invention provides carboxy-terminated oligomeric polyester compositions useful in the preparation of 'weatherable' polymeric materials, for example weatherable copolyestercarbonates. In one aspect the present invention provides an oligomeric polyester composition comprising structural units derived from at least one diacid, at least one diaryl carbonate and at least one diol. The structural units derived from the diacid are present in a molar excess of from about 10% to about 40% based on a ratio of moles of diacid-derived structural units to moles of diol-derived structural units present in the oligomeric polyester composition. The oligomeric polyester composition is further characterized by the presence of at least some phenoxy end groups.