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. 21, 1993
Filed:
May. 18, 1992
Applicant:
Inventors:
Wulf von Bonin, Odenthal-Hahnenberg, DE;
Ulrich von Gizycki, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C01B / ; C09K / ;
U.S. Cl.
CPC ...
524496 ; 523218 ; 423448 ; 4234498 ; 264109 ;
Abstract
In a particularly advantageous process for the production of mouldings from expandable graphite, the expandable graphite is first converted into a pre-expanded form and the latter is compression moulded in a compression moulding apparatus at temperatures below 180.degree. C. to give performs. Moldings are produced from these preforms by heating in moulds to temperatures above 180.degree. C.