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:
Oct. 30, 1990
Filed:
Nov. 25, 1988
Applicant:
Inventors:
Robert Becker, Leverkusen, DE;
Gerd Goldmann, Krefeld, DE;
Ulrich von Gizycki, Leverkusen, DE;
Wulf von Bonin, Odenthal, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428113 ; 427370 ; 427373 ; 428109 ; 428114 ; 428131 ; 428224 ; 428232 ; 428294 ; 4283044 ; 428408 ; 428902 ; 428297 ; 428137 ;
Abstract
A lightweight composite material is disclosed which comprises three-dimensionally arranged fibers of at least 50 mm length provided in a thermoplast matrix. The thermoplast matrix is thermally treated to form cavities within the matrix.