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:
Jan. 03, 2006
Filed:
May. 11, 2001
Kazuaki Matsumoto, Osaka, JP;
Yoshitaka Ono, Osaka, JP;
Tatsushi Yoshida, Hyogo, JP;
Kaneka Corporation, Osaka, JP;
Abstract
The present invention provides flame retardants which can provide high flame retardancy by means of silicon compounds. A flame retardant comprising an aromatic group-containing organosiloxane compound wherein said compound has the following mean composition formula (1), does not flow at 23° C., flows at 200° C., does not gelate when heated at 200° C. with stirring for 30 minutes, has a number average molecular weight of not less than 2,000 and at the same time, dissolves not less than 100 g in 1 L of a solvent toluene at 23° C.:RRSiO  (1)in the formula, Rrepresents a univalent aliphatic hydrocarbon group containing 1 to 4 carbon atoms; Rrepresents a univalent aromatic hydrocarbon group containing 6 to 24 carbon atoms; Rand Reach may contain two or more species; and m and n are numbers satisfying 1.1≦m+n≦1.7 and 0.4≦n/m≦2.5.