FIBER REINFORCED POLYAMIDE POLYMERIC MATERIAL Russian patent published in 2018 - IPC C08J5/06 C08K5/00 C08K7/02 C08K9/04 C08L77/06 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to a fiber-reinforced polyamide polymer material, which has high rigidity and low hygroscopicity, and is also excellent in applicability by moldability and mechanical properties of the molded article. Described is a fiber-reinforced polyamide polymer material containing 100 parts by weight of a polyamide polymer (A), which is a diamine and dicarboxylic acid poly-condensation product, and from 5 to 300 parts by weight of carbon fiber (B); in which 70 or more mole% of the diamine is xylylenediamine; 50 or more mol% of the dicarboxylic acid is adipic acid and / or sebacic acid; polyamide polymer (A) has a ([NH₂]) terminal amino groups (meq/g) content from 26 to 90; and on its surface the carbon fiber (B) contains a compound (C) which is capable of reacting with amino groups, wherein the compound (C) is an epoxy compound and / or an isocyanate compound. Disclosed also are material, molded article, method for producing a molded article; a fabric comprising a fiber-reinforced polyamide polymeric material; and a belt comprising a fiber-reinforced polyamide polymeric material.

EFFECT: material is obtained which has high rigidity and low hygroscopicity, and is also excellent by applicability by moldability and mechanical properties of the molded article.

30 cl, 3 tbl, 23 ex