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:
Feb. 24, 2004
Filed:
Jul. 29, 2002
Applicant:
Inventors:
Lau S. Yang, Wilmington, DE (US);
Paul Malcolm Puckett, Lake Jackson, TX (US);
Assignee:
Arco Chemical Technology, LP, Greenville, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 6/706 ; C08G 6/352 ;
U.S. Cl.
CPC ...
C08L 6/706 ; C08G 6/352 ;
Abstract
A high performance UPR (unsaturated polyester resin) is disclosed. The UPR comprises recurring units of phthalic anhydride, 2-methyl-1,3-propanediol, and maleic anhydride. It has a fumarate/maleate ratio 85/15 or greater. It has a bi- or multi-modal molecular weight distribution. A high molecular weight portion of the UPR has a peak molecular weight (Mp) 50,000 or greater. It has a weight average molecular weight (Mw) 15,000 or greater. An ortho UPR of the invention performs as well as or better than traditional iso UPR.