# US 2019/0168469 A1 · Molding method for composite material and intermediate member for composite material

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- Number: US 2019/0168469 A1
- Document ID: US20190168469A1
- Status: Published application
- Kind: A1
- Application number: 16/321,845
- Filed: 2016-08-09
- Published: 2019-06-06
- Earliest claimed: 2016-08-09
- Assignees: Nissan Motor Co., Ltd.
- Applicants: Nissan Motor Co., Ltd.
- Inventors: Hiroaki OKAI
- Web page: https://patentgrep.com/patent/US20190168469A1

## CPC

- B29C 70/48: and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM] {, e.g. by vacuum}
- B29C 39/10: incorporating preformed parts or layers, e.g. casting around inserts or for coating articles {(coating a surface by casting in general B05D1/30, B29C39/126 takes precedence)}
- B29C 45/14: incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles {(B29C45/1671 takes precedence)}
- B29C 70/541: {Positioning reinforcements in a mould, e.g. using clamping means for the reinforcement (positioning inserts in moulds B29C33/12; lay-up on a mould B29C70/30)}
- B29C 70/543: {Fixing the position or configuration of fibrous reinforcements before or during moulding (for non-woven fabrics D04H3/08)}
- B29C 70/68: by incorporating or moulding on preformed parts, e.g. inserts or layers {, e.g. foam blocks (mould constructions therefor B29C33/12; joining preformed parts by moulding B29C65/70)}
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)

## Abstract

A molding method for a composite material by disposing a reinforcing base material within a cavity of an openable/closable molding die, injecting resin into the cavity and curing the resin. In particular support member is caused to penetrate a reinforcing base material and is disposed such that at least one end portion of the support member projects from the reinforcing base material. Next, the reinforcing base material and the support member are disposed within a cavity of a molding die, the molding die is closed, at least one end portion of the support member is brought into contact with wall surfaces of the molding die that form the cavity. Finally, resin is injected into the cavity from an injection port of the molding die while a state in which the at least one end portion is brought into contact with the wall surface is maintained.

## Claims

### Claim 1

A molding method for molding a composite material by disposing a reinforcing base material within a cavity of an openable/closable molding die, injecting resin into the cavity, and curing the resin, the molding method comprising:
causing a support member to penetrate the reinforcing base material and disposing the support member such that at least one end portion of the support member projects from the reinforcing base material;
disposing the reinforcing base material and the support member within the cavity;
closing the molding die and bringing the at least one end portion of the support member in contact with the wall surfaces of the molding die that form the cavity; and
injecting the resin into the cavity from an injection port of the molding die while maintaining a state in which the at least one end portion of the support member is in contact with the wall surfaces.

### Claim 2 (depends on 1)

The molding method according to claim 1, wherein
the support member is disposed such that both end portions of the support member project from the reinforcing base material during the causing disposing of the support member to penetrate the reinforcing base material,
the both end portions of the support member are sandwiched by the wall surfaces of the molding die during the closing of the molding die, and
a clamped state of the support member is maintained during the injecting of the resin.

### Claim 3 (depends on 1)

The molding method for according to claim 1, wherein
a gap is formed in at least a portion of a space between the reinforcing base material and the wall surfaces of the molding die by the at least one end portion of the support member during the injecting of the resin.

### Claim 4 (depends on 1)

The molding method according to claim 1, wherein
the support member is disposed within the cavity in a vicinity of the injection port and farther on an outer peripheral edge side of the reinforcing base material than the injection port.

### Claim 5 (depends on 1)

The molding method according to claim 1, wherein
a plurality of the reinforcing base materials are stacked before the support member is caused to penetrate the reinforcing base material.

### Claim 6 (depends on 1)

The molding method according to claim 1, wherein
the support member is provided with a property of softening with heat, and
the molding die is closed further and at least a portion of the support member is crushed in a direction in which the molding die is closed after the injecting of the resin.

### Claim 7 (depends on 6)

The molding method according to claim 6, wherein
the support member is formed from a thermoplastic resin, and
at least a part of the portion where the support member was present is replaced with the injected resin during after the injecting of the resin into the cavity.

### Claim 8 (depends on 1)

The molding method according to claim 1, wherein
the support member is formed from a material having an affinity with the resin that is injected into the cavity.

### Claim 9

An intermediate member for composite material, the intermediate member comprising:
a preform obtained by forming a reinforcing base material into a prescribed shape; and
a support member that penetrates is fixed to the reinforcing base material and disposed such that at least one end portion thereof of the support member projects from the reinforcing base material.

### Claim 10 (depends on 9)

The intermediate member according to claim 9, wherein
the support member is disposed such that both end portions thereof of the support member project from the reinforcing base material.

### Claim 11 (depends on 9)

The intermediate member according to claim 9, wherein
the preform includes a plurality of the reinforcing base materials.

### Claim 12 (depends on 9)

The intermediate member for-composite according to claim 9, wherein
the support member is provided with a property of softening with heat.

### Claim 13 (depends on 12)

The intermediate member according to claim 12, wherein
the support member is formed from a thermoplastic resin.

### Claim 14 (depends on 9)

The intermediate member according to claim 9, wherein
the support member is formed from a material having an affinity with the resin that is used for the composite material.
