Vibration-damping molded article and method for producing resin composition for vibration-damping molded article
AssigneePolyplastics Co., Ltd.
InventorTakanobu Teraoka
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Abstract
A molded article which exhibits an improved vibration-damping effect. The vibration-damping molded article includes a resin composition including at least a thermoplastic resin A, an olefin-based elastomer B having a reactive functional group, and an inorganic filler C, wherein the inorganic filler C is coated with the olefin-based elastomer B.
Claims5
A vibration-damping molded article comprising a resin composition comprising a thermoplastic resin A, an olefin-based elastomer B having a reactive functional group, and an inorganic filler C, wherein the inorganic filler C is selected from the group consisting of mica, glass fiber and potassium titanate, the inorganic filler is in an amount of 13.1-46.8 parts by mass per 100 parts by mass of the thermoplastic resin A, and the inorganic filler C is coated with the olefin-based elastomer B,
- wherein the thermoplastic resin A is a crystalline thermoplastic resin selected from the group consisting of polyphenylene sulfide and polybutylene terephthalate, and
- wherein the olefin-based elastomer B is selected from the group consisting of an ethylene-glycidyl methacrylate copolymer and poly(ethylene-octene) and wherein the olefin-based elastomer B is in an amount of 17.5-31.2 parts by mass per 100 parts by mass of thermoplastic resin A.
A method for producing a resin composition for a vibration-damping molded article, the method comprising melt-kneading an olefin-based elastomer B and an inorganic filler C, subsequently adding a thermoplastic resin A to the melt-kneaded olefin-based elastomer B and inorganic filler C, and performing further melt-kneading,
- wherein the inorganic filler C is selected from the group consisting of mica, glass fiber and potassium titanate, the inorganic filler is in an amount of 13.1-46.8 parts by mass per 100 parts by mass of the thermoplastic resin A, and the inorganic filler Cis coated with the olefin-based elastomer B,
- wherein the thermoplastic resin A is a crystalline thermoplastic resin selected from the group consisting of polyphenylene sulfide and polybutylene terephthalate, and
- wherein the olefin-based elastomer B is selected from the group consisting of an ethylene-glycidyl methacrylate copolymer and poly(ethylene-octene) and wherein the olefin-based elastomer B is in an amount of 17.5-31.2 parts by mass per 100 parts by mass of thermoplastic resin A.
Dependencies are inferred from the claim text.