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:
Dec. 16, 2008
Filed:
Feb. 22, 2005
Hisashi Murase, Saitama, JP;
Masaru Nagahama, Saitama, JP;
Kenichi Yoshikawa, Saitama, JP;
Yuki Tanaka, Saitama, JP;
Takayoshi Kaneda, Saitama, JP;
Akihiro Yamaki, Saitama, JP;
Hisashi Murase, Saitama, JP;
Masaru Nagahama, Saitama, JP;
Kenichi Yoshikawa, Saitama, JP;
Yuki Tanaka, Saitama, JP;
Takayoshi Kaneda, Saitama, JP;
Akihiro Yamaki, Saitama, JP;
Adeka Corporation, Tokyo, JP;
Abstract
The invention provides a flame retardant composition comprising 1-99 weight parts of a salt of piperazine and an inorganic compound selected from among piperazine phosphate, piperazine pyrophosphate and piperazine polyphosphate, or a mixture of two or more of these piperazine salts (ingredient (A)), 99-1 weight parts of a salt of melamine and an inorganic compound selected from among melamine phosphate, melamine pyrophosphate and melamine polyphosphate, or a mixture of two or more of these melamine salts (ingredient (B)) (wherein, the sum of ingredient (A) and ingredient (B) is 100 weight parts), 0-50 weight parts of an arbitrary ingredient (ingredient (C)), and 0.01-20 weight parts of a silicone oil having a viscosity at 25° C. of 5000 mm/s (ingredient (D)) which is added thereto. This flame retardant not only has superior flame retarding properties, but also has enhanced powder properties and anti-hygroscopic properties, and when it is added to a resin, there is little change of electrical resistance.