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.

Date of Patent:
Jul. 12, 2005

Filed:

Apr. 29, 2002
Applicants:

Shinichi Okajima, Nobeoka, JP;

Jinichiro Kato, Nobeoka, JP;

Katsuhiro Fujimoto, Nobeoka, JP;

Inventors:

Shinichi Okajima, Nobeoka, JP;

Jinichiro Kato, Nobeoka, JP;

Katsuhiro Fujimoto, Nobeoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B015/02 ; C08F020/00 ;
U.S. Cl.
CPC ...
Abstract

The present invention provides a poly(trimethylene terephthalate) pellet comprising 80 wt % or more of trimethylene terephthalate repeating units copolymerized with bis(3-hydroxypropyl) ether at a ratio in a range from 0.01 to 2 wt %, wherein an amount of terminal carboxyl groups is 25 milli-equivalent/kg or less and an intrinsic viscosity is in a range from 0.8 to 2 dl/g, which pellet has an L* value of 75 or more, a b* value in a range from −2 to 5, and a weight in a range from 1 to 50 mg/piece.


Find Patent Forward Citations

Okajima, Shinichi. (2005). Poly (trimethylene terephthalate) pellets and method for production thereof (U.S. Patent No. 6916535). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6916535

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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