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:
Sep. 20, 1994
Filed:
Apr. 20, 1993
Applicant:
Inventors:
Tetuya Takahashi, Kawasaki, JP;
Hitoshi Uda, Kawasaki, JP;
Akira Nakamura, Kawasaki, JP;
Ryosuke Kamei, Kawasaki, JP;
Eiichiro Takiyama, Kamakura, JP;
Assignee:
Showa Highpolymer Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525440 ; 528272 ; 528288 ; 528296 ; 528302 ; 528307 ; 528350 ; 528353 ; 525437 ; 525440 ;
Abstract
Polyester fiber consisting of an aliphatic polyester having a melt viscosity of 1.0.times.10.sup.2 -1.0.times.10.sup.4 poises at a temperature of 190.degree. C. at a shear rate of 1000 sec.sup.-1 and a melting point of 70-190.degree. C. The polyester fiber of the present invention exhibits biodegradability when buried in the ground. The amount of combustion heat generated on incineration is smaller than that of polyethylene and polypropylene. The polyester fiber of the present invention has excellent physical properties.