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. 06, 1990
Filed:
Apr. 21, 1988
Applicant:
Inventors:
Kazuto Kiyohara, Hino, JP;
Toshiaki Yamazaki, Hino, JP;
Ichiya Harada, Hino, JP;
Takanori Nakadate, Hino, JP;
Kentaro Noguchi, Hofu, JP;
Michiteru Nakano, Hofu, JP;
Shigeru Sakae, Hofu, JP;
Kazuhiro Okuma, Hofu, JP;
Assignees:
Konica Corporation, both of, JP;
Kanebo Ltd., both of, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08K / ; C08K / ;
U.S. Cl.
CPC ...
523343 ; 523348 ; 524423 ; 524425 ; 524430 ; 524432 ; 524447 ; 524451 ; 524604 ; 524605 ;
Abstract
A process for producing a polyester resin composition containing at least 10 wt % of a white inorganic pigment dispersed in a polyester resin, which comprises kneading the polyester resin with the white inorganic pigment and thereafter subjecting the blend to a polycondensation reaction at a temperature ranging from the melting point of the polyester up to 300.degree. C. and at a reduced pressure of not higher than 5 Torr, is disclosed.