# US 2006/0216469 A1 · Method for manufacturing a resin injection molded article with a reinforcing or decorative core

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- Number: US 2006/0216469 A1
- Document ID: US20060216469A1
- Status: Published application
- Kind: A1
- Application number: 11/231,390
- Filed: 2005-09-21
- Published: 2006-09-28
- Earliest claimed: 2000-12-29
- Inventors: Kenichi Hashizume; Tetsuya Yamamoto
- Web page: https://patentgrep.com/patent/US20060216469A1

## CPC

- B29C 45/14221: {by tools, e.g. cutting means}
- B29C 45/14786: {Fibrous material or fibre containing material, e.g. fibre mats or fibre reinforced material}
- B29C 45/1671: {with an insert}
- B29C 2045/14237: {the inserts being deformed or preformed outside the mould or mould cavity}
- B29C 2045/14245: {using deforming or preforming means outside the mould cavity}
- B29K 2105/0809: {Fabrics}
- B29K 2713/00: Use of textile products or fabrics for preformed parts, e.g. for inserts (B29K2105/06 takes precedence)
- B29K 2995/0026: Transparent
- B29L 2031/3431: {Telephones, Earphones}
- B29L 2031/3437: {Cellular phones}
- B32B 38/06: Embossing
- B32B 38/12: Deep-drawing
- B32B 38/145: {Printing}
- B32B 2305/08: Reinforcements
- B32B 2305/18: Fabrics, textiles
- B32B 2309/105: Thickness
- B32B 2311/00: Metals, their alloys or their compounds
- B32B 2317/12: Paper, e.g. cardboard
- H04M 1/0283: {for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate}
- Y10T 428/24174: including sheet or component perpendicular to plane of web or sheet
- Y10T 442/109: Metal or metal-coated fiber-containing scrim
- Y10T 442/133: Inorganic fiber-containing scrim
- Y10T 442/172: Coated or impregnated
- Y10T 442/20: Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T 442/339: Metal or metal-coated strand
- Y10T 442/3854: Woven fabric with a preformed polymeric film or sheet
- Y10T 442/40: Knit fabric [i.e., knit strand or strip material]
- Y10T 442/475: Including a free metal or alloy constituent
- 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)
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A resin injection molded article comprising at least a two-dimensional reinforcing core material formed into a non-planar shape, a resin surface layer covering the surface of the core material, and a resin-made structural member formed integrally with the resin surface layer and protruding from the resin surface layer, wherein the resin surface layer and the structural member are integrally molded by injection molding. The two-dimensional core material may be used as a design.

## Claims

### Claim at position 1

1-17. (canceled)

### Claim 18

A method for fabricating a casing part of a portable electronic device, comprising:
providing a reinforcing core material into a first mold;
setting a second mold on a first surface of the core material, said second mold having a first hole for injecting a resin;
injecting a resin from the first hole to construct a first resin surface layer covering the first surface of the core material;
changing the first mold to a third mold and setting the third mold on a second surface of the core material which is different surface of the first surface, the third mold having a second hole for injecting a resin; and
injecting a resin from the second hole to construct a second resin surface layer covering the second surface of the core material, the second resin surface layer being constructed integrally with the first resin surface layer on at least a part of the second resin surface layer.

### Claim 19 (depends on 18)

The method of claim 18, wherein at least one of said second mold and said third mold has at least a cavity to form a protruded resin structure integrally with the first resin surface layer or the second resin surface layer.

### Claim 20 (depends on 18)

The method of claim 18, wherein said reinforcing core material is one of a fiber material and a fiber material impregnated with a resin, the fiber material comprising one of a woven fabric and a knitted fabric.

### Claim 21 (depends on 20)

The method of claim 20, wherein said fiber material is selected from the group consisting of carbon fibers, glass fibers and aramid fibers.

### Claim 22 (depends on 20)

The method of claim 20, wherein said fiber material is selected from the group consisting of synthetic fibers and natural fibers.

### Claim 23 (depends on 18)

The method of claim 18, wherein said fiber material comprises metal fibers.

### Claim 24 (depends on 20)

The method of claim 20, wherein said fiber material is a fiber material impregnated with a thermoplastic resin.

### Claim 25 (depends on 24)

The method of claim 24, wherein said thermoplastic resin is an acrylic resin, polyamide resin, polyester resin, polypropylene resin, ABS resin, polycarbonate resin, polypropylene-ethylene resin or a modification or blend of these resins.

### Claim 26 (depends on 24)

The method of claim 24, wherein at least one of said first and second resin surface layers and said fiber material-impregnating resin are composed of the same material.

### Claim 27 (depends on 18)

The method of claim 18, wherein at least one part of at least one of said first and second resin surface layers is a transparent resin layer.

### Claim 28 (depends on 27)

The method of claim 27, further comprising the step of:
providing said reinforcing core material with a design including at least one of a picture, a drawing, characters, and a pattern.

### Claim 29 (depends on 18)

The method of claim 18, wherein said casing part comprise the entire casing for the portable electronic device.

### Claim 30 (depends on 27)

The method of claim 27, wherein said core material is a film, sheet, or net made of paper, plastic, metal, fiber product or a laminate thereof.

### Claim 31 (depends on 30)

The method of claim 30, wherein said core material is provided with a design comprising at least one of a picture, a drawing, characters, and a pattern.

### Claim 32 (depends on 18)

The method of claim 18, wherein said second resin surface layer is integrated with said first resin surface layer such that the core material is fully covered.

### Claim 33 (depends on 22)

The method of claim 22, wherein the synthetic fibers comprise at least one of nylon and polyester.

### Claim 34 (depends on 22)

The method of claim 22, wherein the natural fibers comprise at least one of hemp and cotton.
