Method for producing heat-resistant resin composite and heatresistant resin composite
AssigneeKuraray Co., Ltd.
InventorsRyokei ENDO, Yosuke WASHITAKE
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Abstract
A method may produce a heat-resistant resin composite excellent in heat resistance and bending properties. This heat-resistant resin composite is constituted of a matrix resin and reinforcing fibers dispersed in the matrix resin. The matrix resin is constituted of a heat-resistant thermoplastic polymer having a glass transition temperature of 100° C. or higher, and a polyester-based polymer comprising a terephthalic acid unit (A) and an isophthalic acid unit (B) at a copolymerization proportion (molar ratio) of (A)/(B)=100/0 to 40/60. The proportion of the heat-resistant thermoplastic polymer in the composite is 30 to 80 wt %.
Claims14
A method for producing a heat-resistant resin composite, the method comprising:
- preparing one or more of the non-woven fabrics to be overlaid with each other;
- and
- thermo-compressing one or more of the non-woven fabrics at a temperature of equal to or higher than a flow starting temperature of the heat-resistant thermoplastic fiber to carry out thermo-forming,
- wherein the non-woven fabrics comprise:
- a heat-resistant thermoplastic fiber;
- a reinforcing fiber;
- and
- a polyester-based binder fiber suitable to bind other fibers,
- wherein the heat-resistant thermoplastic fiber has a glass transition temperature of 100° C. or higher, an average fineness of 0.1 to 10 dtex, and an average fiber length in a range of from 0.5 to 60 mm,
- wherein the polyester-based binder fiber comprises a polyester-based polymer comprising a terephthalic acid unit (A) and an isophthalic acid unit (B) in an (A)/(B) molar copolymerization ratio in a range of from 100/0 to 40/60, and
- wherein a proportion of the heat-resistant thermoplastic fiber in the non-woven fabric is in a range of from 30 to 80 wt.%.
A heat-resistant resin composite, comprising:
- a matrix resin;
- and
- reinforcing fibers dispersed in the matrix resin,
- wherein the matrix resin comprises a heat-resistant thermoplastic polymer and a polyester-based polymer, the heat-resistant thermoplastic polymer having a glass transition temperature of 100° C. or higher, and the polyester-based polymer comprising a terephthalic acid unit (A) and an isophthalic acid unit (B) in an (A)/(B) molar copolymerization ratio (molar ratio) in a range of from 100/0 to 40/60, and
- wherein the heat-resistant resin composite comprises the heat-resistant thermoplastic polymer in a proportion in a range of from 30 to 80 wt.%, based on the composite.
Dependencies are inferred from the claim text.