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:
Mar. 04, 1980
Filed:
Mar. 24, 1978
Applicant:
Inventors:
Assignee:
Isovolta, Osterreichische Isolierstoffwerke Aktiengesellschaft, Wiener Neudorf, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
260-23 ; 106 83 ; 260 / ; 264 37 ; 428407 ;
Abstract
An improved building material element or board having good thermal insulation properties comprising expanded vermiculite granules coated with 2 to 30% by weight, based on the weight of vermiculite, with an organic binder formed into a press cake which is then press heated to form the building element, the improvement comprising that at least a portion of the coated vermiculite granules are recycled particles which increases the density and has a more uniform and more easily sized surface and a process for its preparation.