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. 24, 1985
Filed:
Sep. 07, 1983
Applicant:
Inventors:
Kusuo Fujishita, Moriyama, JP;
Hideshi Sakamoto, Ichihara, JP;
Assignee:
Chisso Corporation, Ohsaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526142 ; 5263481 ; 526351 ; 2641 / ; 2642896 ; 264D / ; 264D / ;
Abstract
Polypropylene fibers having a much improved percentage heat shrinkage and also an improved tenacity are provided, which fibers comprise a polypropylene resin having a density of 0.905 or more, an isotactic pentad ratio of boiling n-heptane-insoluble portion (P.sub.0) of 0.960 or more and a ratio of pentad having two different kinds of configurations (P.sub.2), of 0.002 (0.2%) or less.
Fujishita, Kusuo. (1985). Polypropylene fibers having improved heat-shrinkability and tenacity (U.S. Patent No. 4560734). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4560734
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile