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:
Jul. 02, 2019
Filed:
Dec. 02, 2014
Shengyi Technology Co., Ltd., Dongguan, Guangdong, CN;
Hui Li, Dongguan, CN;
Kehong Fang, Dongguan, CN;
SHENGYI TECHNOLOGY CO., LTD., Dongguan, Guangdong, CN;
Abstract
A halogen-free resin composition and a prepreg and a laminate prepared therefrom. The halogen-free resin composition comprises the following ingredients in parts by weight: 50-100 parts of an epoxy resin, 20-70 parts of benzoxazine, 5-40 parts of polyphenyl ether, 5-30 parts of styrene-maleic anhydride, 5-40 parts of a halogen-free flame retardant, 0.2-5 parts of a curing accelerator, and 20-100 parts of a filler. The prepreg and the laminate, which are manufactured from the halogen-free resin composition, have the comprehensive properties of low dielectric constant, low dielectric loss, excellent heat resistance, adhesive property and wet resistance and the like, and are suitable for being applied to halogen-free high-frequency multilayer circuit boards.