Waterproof component and electronic equipment provided with same, method for waterproofing insert molded body, and method for waterproofing electronic equipment
AssigneeKuraray Co., Ltd.
InventorsNaoto Sugai, Yuki Ito, Takaharu Shigematsu
Life of this patent
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Abstract
The present invention relates to a waterproof component that is an insert molded body formed from a thermoplastic resin composition and a metal component, wherein the thermoplastic resin composition contains a thermoplastic resin (A) and an inorganic fibrous reinforcement (B); the content of the inorganic fibrous reinforcement (B) is 8 to 130 parts by mass based on 100 parts by mass of the thermoplastic resin (A); and the inorganic fibrous reinforcement (B) has an average fiber diameter of 10 μm or less and an average fiber length of 300 μm or less.
Claims16
A waterproof component that is an insert molded body formed from a thermoplastic resin composition molded onto a metal component insert such that no gap is formed between the then toplastic resin composition and metal component insert,
- wherein the thermoplastic resin composition comprises a thermoplastic resin (A) and an inorganic fibrous reinforcement (B);
- wherein the thermoplastic resin (A) is a crystalline polyamide,
- wherein a melting point of the thermoplastic resin (A) is 280° C. or higher,
- a content of the inorganic fibrous reinforcement (B) is 8 to 130 parts by mass based on 100 parts by mass of the thermoplastic resin (A);
- and
- the inorganic fibrous reinforcement (B) has an average fiber diameter of 9 μm or less and an average fiber length of 300 μm or less.
A method, comprising waterproofing an insert molded body by forming a thermoplastic resin composition molded onto a metal component insert such that no gap is formed between the thermoplastic resin composition and metal component insert,
- wherein the thermoplastic resin composition comprises a thermoplastic resin (A) and an inorganic fibrous reinforcement (B);
- wherein the thermoplastic resin (A) is a crystalline polvamide,
- wherein a melting point of the thermoplastic resin (A) is 280° C. or higher,
- a content of the inorganic fibrous reinforcement (B) is 8 to 130 parts by mass based on 100 parts by mass of the thermoplastic resin (A);
- and
- the inorganic fibrous reinforcement (B) has an average fiber diameter of 9 μm or less and an average fiber length of 300 μm or less.
A method for producing a waterproof component, comprising
- subjecting a thermoplastic resin composition and a metal component to insert molding, the thermoplastic resin composition being obtained through melt kneading of 100 parts by mass of a thermoplastic resin (A) and an inorganic fibrous reinforcement (B) having an average fiber diameter of 9 μm or less and an average fiber length of 300 μm or less in a use amount of 8 to 130 parts by mass, and wherein the thermoplastic resin (A) is a crystalline polyamide.
Dependencies are inferred from the claim text.