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:
Oct. 30, 1979
Filed:
Jul. 13, 1977
Applicant:
Inventors:
Arno Wegerhoff, Worth, DE;
Dieter Frank, Naperville, IL (US);
Assignee:
Akzona Incorporated, Asheville, NC (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106 1812 ; 106122 ; 106164 ; 106168 ; 252 62 ; 264 453 ;
Abstract
Flame resistant foam plastics of cellulose and kieselguhr or one of several types of mica such as roscoelite, lepidolite, biotite, phlogopite, vermiculite or muscovite where at least 80 percent by weight of the kieselguhr or the mica show grain sizes ranging from 0.4 to 650 microns and where the bulk density of the kieselguhr is less than 0.40 g./cc. and the bulk density of the mica is less than 0.37 g./cc.