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:
Dec. 30, 2003
Filed:
Dec. 31, 2002
Applicant:
Inventors:
Eric Appelman, Dordrecht, NL;
Jeffrey Thomas Carter, Marton, GB;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/000 ;
U.S. Cl.
CPC ...
C08F 2/000 ;
Abstract
A block copolyester comprises a hard segment and a soft segment, wherein the melting point of the copolyester is greater than or equal to 200° C., and the glass transition temperature of the copolyester is less than or equal to −40° C. The hard segment is preferably polyethylene terephthalate, polybutylene terephthalate, or polyethylene naphthalate. The soft segment is preferably formed from at least one dimer fatty acid and/or dimer fatty diol and/or equivalent thereof. The copolyester is especially suitable for use in automotive parts, particularly where thermal stability is required.