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:
Feb. 04, 1986

Filed:

May. 06, 1985
Applicant:
Inventors:

Hideki Kuwabara, Hadano, JP;

Toru Yamaguchi, Utsunomiya, JP;

Atushi Kitagawa, Fujisawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; B32B / ;
U.S. Cl.
CPC ...
428402 ; 521 58 ; 521 59 ; 521144 ;
Abstract

In pre-foamed particles of a propylene-base resin obtained by foaming raw particles of the propylene-base resin, the relation, G.sub.1 -G.sub.2 .gtoreq.10%, exists between the content G.sub.1 (%) of matter, which is contained in the pre-foamed particles and is insoluble in boiling n-heptane, and the content G.sub.2 (%) of matter contained in the raw particles and insoluble in boiling n-heptane. The pre-foamed particles have excellent moldability and can hence provide with ease low-density (highly-expanded) molded articles, which enjoy superb dimensional accuracy, good surface conditions, low percent water absorption, excellent impact and chemical resistance.


Find Patent Forward Citations

Kuwabara, Hideki. (1986). Pre-foamed particles of polypropylene-base resin (U.S. Patent No. 4568608). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4568608

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

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