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. 03, 1985
Filed:
Dec. 15, 1983
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ;
U.S. Cl.
CPC ...
106121 ; 106 86 ; 106118 ; 106D / ; 501154 ; 2523 / ;
Abstract
A process for producing solid vermiculite products which are stable in water which comprises incorporating a source of ammonia or ammonium ions or a basic substance, preferably urea, in an aqueous suspension of vermiculite lamellae, shaping the suspension and removing water from the suspension by heating the shaped suspension at a temperature above 100.degree. C., preferably above 150.degree. C., such that ammonia or a basic substance is liberated within the suspension. The invention includes an aqueous suspension of vermiculite lamellae containing a source of ammonia or ammonium ions or a basic substance and a dry-powder mixture of vermiculite lamellae and a source of ammonia or ammonium ions or a basic substance.