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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.:

US 4504534 B1

PDFFull Text
Date of Patent:
Mar. 12, 1985

Filed:

Jun. 13, 1984

Core material for automobile bumpers

Applicant:
Inventors:

Akira Adachi, Sakura, JP;

Takashi Kubota, Utsunomiya, JP;

Yukio Okada, Fujisawa, JP;

Kenichi Miyazaki, Machida, JP;

Taro Hagiwara, Sagamihara, JP;

Assignees:

Japan Styrene Paper Corporation, Tokyo, JP;

Nissan Motor Company, Limited, Yokohama, JP;

Attorney:

Wenderoth, Lind & Ponack

Primary Examiner:

Morton Foelak

Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 71 ; 264 53 ; 264D / ; 264D / ; 264D / ; 264D / ; 293120 ; 428 76 ; 521 56 ; 521 58 ; 521 60 ;
Abstract

A core material for automobile bumpers which is composed of a molded article of foamed particles of a polypropylene-type resin. The molded article has a density of 0.015 to 0.045 g/cm.sup.3 and a compression stress at 50% compression of at least 1 kg/cm.sup.2. The core material simultaneously has excellent energy absorbing property and dimensional recovery and a low density.

Find Patent Forward Citations

Adachi, Akira. (1985). Core material for automobile bumpers (U.S. Patent No. 4504534). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4504534

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

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