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:
Oct. 27, 2020
Filed:
Mar. 26, 2018
Nan Ya Plastics Corporation, Taipei, TW;
Cheng-Chung Lee, Taipei, TW;
Jung-Hai Huang, Taipei, TW;
Chien-Hsing Lee, Taipei, TW;
Chun-Hsiung Yang, Taipei, TW;
NAN YA PLASTICS CORPORATION, Taipei, TW;
Abstract
This invention relates to flame-retardant modified maleic anhydride resins. This resin copolymer consists of styrene, maleic anhydride and, along with a halogen-free epoxy resin, interacts with a hydroxyl group to become a flame-retardant maleic anhydride copolymer that can be applied to copper clad laminate and prepreg. This composition comprises: (A) one or more epoxy resin mixtures; (B) modified styrene-maleic anhydride curing agent copolymer; (C) additives; (D) inorganic fillers. When the aggregate amount of components (A), (B) and (C) equals 100%, component (A), epoxy resin mixture, is 60%-80% in total weight, component (B), modified styrene-maleic anhydride curing agent copolymer, equals 10%-40% in total weight. This invention uses the copolymer of Styrene and Maleic anhydride to generate a flame-retardant hydroxyl group, and with the phosphorus additive, the above components eventually interact to form a flame-retardant modified maleic anhydride copolymer curing agent.