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:
Aug. 09, 1988
Filed:
Jun. 01, 1987
Applicant:
Inventors:
Sven T Denton, Stockport, GB;
Alan Atkinson, Rochdale, GB;
Assignee:
T & N Materials Research Limited, Manchester, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
2523 / ;
Abstract
A moulding composition comprising particles of gas-exfoliated vermiculite (a category which includes thermally exfoliated vermiculite) contains as binder very fine particles (diameter below 50 .mu.m) of vermiculite from which interstitial magnesium ions have been at least partially removed and which has been swollen in water. The composition is particularly suitable for the manufacture of articles required to function in air at temperatures above 250.degree. C., such as gaskets for the exhaust systems of internal combustion engines.