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:
Apr. 03, 1979
Filed:
Dec. 13, 1977
Applicant:
Inventor:
Russell P Rich, Baltimore, MD (US);
Assignee:
The Burns & Russell Company of Baltimore, Baltimore, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
260 / ;
Abstract
A combination of (1) magnesium hydroxide and (2) alumina trihydrate has been found to have synergestic properties in reducing smoke and/or flame spread in many polymer compositions when compared to the use of either alone. In some cases even better results are obtained by including antimony trioxide or antimony trioxide together with finely divided silica.