US 10,479,005 B2Granted

Composite molded article and method for producing the same

AssigneeAsahi Kasei Kabushiki Kaisha

InventorsHideaki Ichiki, Taiga Saito, Yuo Umei

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Abstract

A composite molded article (3) containing: a thermoplastic resin continuous fiber composite material (1) containing a continuous reinforcement fiber (A) and a thermoplastic resin (B); and a thermoplastic resin composition (2), wherein the thermoplastic resin continuous fiber composite material (1) is bonded to the thermoplastic resin composition (2) via a bonding surface, and a bonded part between the thermoplastic resin continuous fiber composite material (1) and the thermoplastic resin composition (2) has a tensile strength which is 0.35 times or more as strong as a tensile strength of the thermoplastic resin composition (2).

Claims18

Dependent claims

A composite molded article comprising:

a thermoplastic resin continuous fiber composite material comprising a continuous reinforcement fiber (A) and a thermoplastic resin (B);
and
a thermoplastic resin composition,
wherein the thermoplastic resin continuous fiber composite material is bonded to the thermoplastic resin composition via a bonding surface,
wherein a bonded part between the thermoplastic resin continuous fiber composite material and the thermoplastic resin composition has a tensile strength which is 0.35 times or more as strong as a tensile strength of the thermoplastic resin composition,
wherein the bonded part between the thermoplastic resin continuous fiber composite material and the thermoplastic resin composition has a convexo-concave structure where the material and the composition are mixed with each other, and
wherein a length L of an interface at the bonding surface between the thermoplastic resin continuous fiber composite material and the thermoplastic resin composition;
and a thickness t of the composite molded article satisfy a relation of L>1.8t.

5 more elements

A method for producing a composite molded article comprising a thermoplastic resin continuous fiber composite material comprising a continuous reinforcement fiber (A) and a thermoplastic resin (B), and a thermoplastic resin composition, wherein the thermoplastic resin continuous fiber composite material is bonded to the thermoplastic resin composition via a bonding surface, the method comprising:

a step of shaping the thermoplastic resin continuous fiber composite material in a mold;
a step of injecting the thermoplastic resin composition into the mold;
and
a step of bonding the thermoplastic resin continuous fiber composite material and the thermoplastic resin composition,
wherein a bonded part between the thermoplastic resin continuous fiber composite material and the thermoplastic resin composition has a tensile strength which is 0.35 times or more as strong as a tensile strength of the thermoplastic resin composition,
wherein the bonded part between the thermoplastic resin continuous fiber composite material and the thermoplastic resin composition has a convexo-concave structure where the material and the composition are mixed with each other, and
wherein a length L of an interface at the bonding surface between the thermoplastic resin continuous fiber composite material and the thermoplastic resin composition;
and a thickness t of the composite molded article satisfy a relation of L>1.8t.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/771,425Filed 27 Oct 2016
Priority: JP 2015-21340729 Oct 2015
Published: US 2018/0326627 A115 Nov 2018
Granted: 19 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification48 codes

B29C 45/0005
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor: using fibre…
B29C 43/18
Of articles of definite length, i.e. discrete articles: incorporating preformed parts or layers, e.g. compression moulding around inserts or for…
B29C 45/14221
The inserts being deformed or preformed, e.g. by the injection pressure: by tools, e.g. cutting means
B29C 45/14786
The article consisting of a material with particular properties, e.g. porous, brittle: fibrous material or fibre containing material, e.g. fibre…

Family

US 2018/0326627 A1Pre-grant publication · published 15 Nov 2018
US 10,479,005 B2This patent

From the US filing history. Foreign family members aren’t listed.

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