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:
Jan. 26, 1993
Filed:
Jun. 27, 1991
Applicant:
Inventors:
Keiichi Kanaka, Shizuoka, JP;
Kenji Hijikata, Shizuoka, JP;
Assignee:
Polyplastics Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
528193 ; 528176 ; 528272 ;
Abstract
Moldable polyester resins having high melt-phase stability and which form substantially no thermal decomposition products during melt-phase processing have a carboxyl end group concentration of no greater than 40 milliequivalent/kg, and are the reaction product of (a) an aromatic dicarboxylic acid or its ester-forming derivative, (b) an aliphatic dihydroxy compound having 2 to 8 carbon atoms, and (c) an ester-forming comonomer having the general formula (I):