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:
Feb. 28, 2012
Filed:
Jan. 28, 2010
Shi Guo Su, Dongguan, CN;
Yue Shan He, Dongguan, CN;
BI Wu Wang, Dongguan, CN;
Jie LI, Dongguan, CN;
Tao Chen, Dongguan, CN;
Shi Guo Su, Dongguan, CN;
Yue Shan He, Dongguan, CN;
Bi Wu Wang, Dongguan, CN;
Jie Li, Dongguan, CN;
Tao Chen, Dongguan, CN;
Guangdong Shengyi Sci. Tech Co., Ltd., Dongguan, CN;
Abstract
The present invention relates to a halogen-free resin composition with high frequency dielectric property, and a prepreg and a laminate made therefrom. The halogen-free resin composition with high frequency dielectric property comprises, calculating according to the parts by weight of organic solids: (A) 10-50 parts by weight of copolymer of styrene-maleic anhydride; (B) 10-50 parts by weight of at least one compound having dihydrobenzoxazine ring; (C) 10-50 parts by weight of at least one polyepoxide; (D) 5-30 parts by weight of at least one phosphorus-containing flame retardant. Prepregs and laminates made from the resin composition have low dielectric constant, low dielectric dissipation factor, high glass transition temperature, high heat resistance, low moisture adsorption, and the technological operation is simple.