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:
May. 01, 1984
Filed:
Oct. 01, 1982
Applicant:
Inventor:
Sudarsan C Samanta, Plymouth Meeting, PA (US);
Assignee:
General Refractories Company, Bala Cynwyd, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ; E04B / ;
U.S. Cl.
CPC ...
252 62 ; 106 81 ; 106 84 ; 106D / ;
Abstract
A coherent, rigid, heat stable, low density, low thermal conductivity, strong, impact resistant, water repellant thermal insulation material, having an average maximum linear shrinkage of 2% or less at temperatures up to 1200.degree. F., made from expanded perlite, alkali metal silicate solution, kaolin clay, and organic fiber. Additions of methylcellulose and polydimethyl silicone liquid enhance the insulation material's strength and water repellency characteristics. The material may be cured and dried at a temperature of about 170.degree. or less for a period of about 24 hours or more without humidity control.