Patent ID: 6506826
Filing Date: 2003-01-14
Classification: C08K

Abstract:
A polyamide resin composition obtained by a process comprising:mixing a polyamide-forming component with an apatite compound-forming component; and allowing to proceed polymerization of a polyamide and synthesis of an apatite compound, wherein said polyamide resin composition contains 0.5 to 50 wt. % of the apatite compound and when eluted with a phenol solvent and filtered, leaves 1 to 100 parts by weight of residual organic substances per 100 parts by weight of said apatite compound, said polyamide resin being selected from the group consisting of polycaprolactam (nylon 6), polytetramethylene adipamide (nylon 46), polyhexamethylene adipamide (nylon 66), polyhexamethylene sebacamide (nylon 610), polyhexamethylene dodecamide (nylon 612), polyundecamethylene adipamide (nylon 116), polyundecalactam (nylon 11), polydodecalactam (nylon 12), polytrimethylhexamethylene terephthalamide (nylon TMHT), polyhexamethylene isophthalamide (nylon 6I), polynonanemethylene terephthalamide (9T), polyhexamethylene terephthalamide (6T), polybis (4-aminocyclohexyl)methane dodecamide (nylon PACM12), polybis(3-methyl-aminocyclohexyl)methane dodecamide (nylondimethyl PACM12), polymethaxylylene adipamide (nylon MXD6) and polyundecamethylene hexahydroterephthalamide (nylon 11T(H)) and polyamide copolymers each containing at least two different polyamide components of said polyamide resins, and mixtures thereof.