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:
Mar. 01, 2016
Filed:
Jul. 29, 2011
Applicants:
Mayumi Matsumoto, Mishima, JP;
Hiroji Kojima, Mishima, JP;
Jun Sakamoto, Otsu, JP;
Inventors:
Assignee:
Toray Industries, Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 63/78 (2006.01); C08K 5/00 (2006.01); C08L 67/02 (2006.01); C08G 63/20 (2006.01); C08G 63/80 (2006.01); C08K 3/00 (2006.01);
U.S. Cl.
CPC ...
C08G 63/78 (2013.01); C08G 63/20 (2013.01); C08G 63/80 (2013.01); C08K 5/0066 (2013.01); C08L 67/02 (2013.01); C08K 3/0058 (2013.01);
Abstract
A process of producing a polyester composition includes carrying out an esterification reaction of a dicarboxylic acid component with a diol component, and then carrying out a polycondensation reaction, wherein the diol component is added twice or more during a time from completion of the esterification reaction until beginning the polycondensation reaction, and alkali metal phosphate is added with an amount of COOH terminal groups of an esterification reactant being not more than 150 eq/ton.