# US 2013/0280478 A1 · Transparent composite material and method and apparatus for manufacturing the same

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- Number: US 2013/0280478 A1
- Document ID: US20130280478A1
- Status: Published application
- Kind: A1
- Application number: 13/587,627
- Filed: 2012-08-16
- Published: 2013-10-24
- Earliest claimed: 2012-04-23
- Assignees: LG Electronics Inc.
- Inventors: Jongwon Lee; Kyungho Jung; Deokhai Park; Eunseck Kang
- Web page: https://patentgrep.com/patent/US20130280478A1

## CPC

- B32B 37/02: characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
- B29C 70/202: {arranged in parallel planes or structures of fibres crossing at substantial angles, e.g. cross-moulding compound [XMC] (B29C70/207 takes precedence)}
- B29C 70/34: and shaping or impregnating by compression {, i.e. combined with compressing after the lay-up operation}
- B32B 5/12: characterised by the relative arrangement of fibres or filaments of {different layers, e.g. the fibres or filaments being parallel or perpendicular to each other}
- B32B 5/26: another layer {next to it} also being fibrous or filamentary {(relative arrangement of fibres or filaments of different layers B32B5/12)}
- B32B 17/04: bonded with or embedded in a plastic substance
- B32B 37/06: characterised by the heating method
- B32B 38/004: {by physically contacting the layers, e.g. by the use of heated platens or rollers}
- B32B 38/1816: {Cross feeding of one or more of the layers}
- B29K 2995/0026: Transparent
- B32B 2262/101: Glass fibres
- B32B 2305/08: Reinforcements
- B32B 2305/10: Fibres of continuous length
- B32B 2307/412: Transparent
- B32B 2309/02: Temperature
- B32B 2383/00: Polysiloxanes
- B32B 2551/00: Optical elements
- Y10T 428/24058: including grain, strips, or filamentary elements in respective layers or components in angular relation
- Y10T 428/24124: Fibers
- Y10T 428/249921: Web or sheet containing structurally defined element or component
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- 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
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

The present disclosure relates to a transparent composite material capable of exhibiting relatively high light transmittance, reduced haze, fabrication in the form of a thin film, and improved mechanical strengths (impact strength, flexural strength, etc.), by way of unidirectionally aligning glass fiber filaments without intersecting or overlapping with each other, and embedding the aligned glass fiber filaments into a transparent resin formed on a film, and a manufacturing method thereof. The transparent composite material is composed of glass fiber plates including a transparent resin, and a plurality of glass fiber filaments embedded in the transparent resin in a unidirectionally aligned state.

## Claims

### Claim 1

A transparent composite material composed of a glass fiber plate comprising a transparent resin, and a plurality of glass fiber filaments embedded in the transparent resin in a unidirectionally aligned state.

### Claim 2 (depends on 1)

The material of claim 1, wherein the transparent composite material comprises the glass fiber plate in plurality, wherein the plurality of glass fiber plates are stacked such that the glass fiber filaments of each glass fiber plate intersect with each other by different angles.

### Claim 3 (depends on 2)

The material of claim 2, wherein the intersecting angle of the glass fiber filaments of the stacked glass fiber plates is 45° or 90°.

### Claim 4 (depends on 2)

The material of claim 2, wherein the plurality of glass fiber plates comprise:
a first glass fiber plate having the glass fiber filaments unidirectionally embedded therein; and
a second glass fiber plate having the glass fiber filaments unidirectionally embedded therein,
wherein the second glass fiber plate is stacked on the first glass fiber plate such that the glass fiber filaments of the second glass fiber plate form the intersecting angle of 90° with the glass fiber filaments of the first glass fiber plate.

### Claim 5 (depends on 2)

The material of claim 2, wherein the glass fiber filaments of two sheets of glass fiber plates, which are stacked on both surfaces of one glass fiber plate of the plurality of glass fiber plates, have the same intersecting angle with each other.

### Claim 6 (depends on 1)

The material of claim 1, wherein the glass fiber filaments are embedded in the transparent resin without intersecting or overlapping with each other.

### Claim 7 (depends on 1)

The material of claim 1, wherein the glass fiber filaments are embedded in the transparent resin to be adjacent to each other on the same plane or to contact each other on the same plane.

### Claim 8 (depends on 1)

The material of claim 1, wherein the transparent resin is an inorganic-organic hybrid resin composed of inorganic bonds and organic bonds.

### Claim 9 (depends on 8)

The material of claim 8, wherein the inorganic bond contained in the inorganic-organic hybrid resin is Si—O—Si bond, and a rate of the Si—O—Si bond is in the range of 30% to 60%, and
wherein the organic bond contained in the inorganic-organic hybrid resin is one of methyl, ethyl and penyl or a combination thereof, and a rate of the organic bond is less than 70% or in the range of 40% to 60%.

### Claim 10 (depends on 1)

The material of claim 1, wherein the transparent resin is coated on a film

### Claim 11

A method for manufacturing a transparent composite material comprising:
preparing a film coated with a transparent resin;
unidirectionally aligning glass fiber filaments; and
manufacturing a glass fiber plate by embedding the unidirectionally aligned glass fiber filaments in the transparent resin.

### Claim 12 (depends on 11)

The method of claim 11, further comprising:
cutting the glass fiber plate;
stacking the plurality of cut glass fiber plates such that the glass fiber filaments of the glass fiber plates intersect with each other by different angles; and
hardening the stacked glass fiber plates.

### Claim 13 (depends on 12)

The method of claim 12, wherein the hardening of the stacked glass fiber plates is performed to harden the stacked glass fiber plates by using a heat-pressing method or an autoclave method.

### Claim 14 (depends on 12)

The method of claim 12, wherein the stacking of the plurality of glass fiber plates is performed to stack the plurality of glass fiber plates such that the intersecting angle of the glass fiber filaments of each glass fiber plate is 45° or 90°.

### Claim 15 (depends on 12)

The method of claim 12, wherein the plurality of glass fiber plates comprise a first glass fiber plate having the glass fiber filaments unidirectionally embedded therein, and a second glass fiber plate having the glass fiber filaments unidirectionally embedded therein, and
wherein the second glass fiber plate is stacked on the first glass fiber plate such that the glass fiber filaments of the second glass fiber plate form the intersecting angle of 90° with the glass fiber filaments of the first glass fiber plate.

### Claim 16 (depends on 12)

The method of claim 12, wherein the glass fiber filaments of two sheets of glass fiber plates, which are stacked on both surfaces of one glass fiber plate of the plurality of glass fiber plates have the same intersecting angle with each other.

### Claim 17 (depends on 11)

The method of claim 11, wherein the glass fiber filaments are embedded in the transparent resin without intersecting or overlapping with each other.

### Claim 18 (depends on 11)

The method of claim 11, wherein the transparent resin is an inorganic-organic hybrid resin composed of inorganic bonds and organic bonds.

### Claim 19 (depends on 18)

The method of claim 18, wherein the inorganic bond contained in the inorganic-organic hybrid resin is Si—O—Si bond, and a rate of the Si—O—Si bond is in the range of 30% to 60%, and
wherein the organic bond contained in the inorganic-organic hybrid resin is one of methyl, ethyl and penyl or a combination thereof, and a rate of the organic bond is less than 70% or in the range of 40% to 60%.

### Claim 20

An apparatus for manufacturing a transparent composite material comprising:
a glass fiber supplier to supply glass fiber filaments;
a spreading unit to unidirectionally spread (align) the glass fiber filaments in a non-intersecting or overlapping manner;
a resin film supplier to supply a film having a resin thereon;
a glass fiber plate manufacturing unit to manufacture a glass fiber plate by heat-pressing the aligned glass fiber filaments onto the resin formed on the film; and
a glass fiber plate collecting unit to collect the glass fiber plate.

### Claim 21 (depends on 20)

The apparatus of claim 20, wherein the glass fiber supplier comprises a plurality of skeins to supply one strand of glass fiber filament, each skein supplying one stand of glass fiber filament to the spreading unit.

### Claim 22 (depends on 20)

The apparatus of claim 20, wherein the spreading unit unidirectionally aligns the glass fiber filaments supplied from each skein in the non-intersecting or overlapping manner.

### Claim 23 (depends on 20)

The apparatus of claim 20, wherein the resin film supplier supplies a protection film to the glass fiber plate manufacturing unit, the protection film protecting the film and the glass fiber filaments when heat-pressing the aligned glass fiber filaments on the resin coated on the film.

### Claim 24 (depends on 20)

The apparatus of claim 20, wherein the glass fiber plate manufacturing unit comprises:
a pre-heating portion to generate heat for heat-pressing the aligned glass fiber filaments on the resin coated on the film; and
a cooling portion to cool the glass fiber plate fabricated by heat-pressing the aligned glass fiber filaments on the resin coated on the film.

### Claim 25 (depends on 20)

The apparatus of claim 20, wherein the glass fiber plate manufacturing unit further comprises a cutting portion to cut the glass fiber plate into a preset size.

### Claim 26 (depends on 20)

The apparatus of claim 20, further comprising a recovery unit to recover the protection film applied onto the glass fiber plate after manufacturing the glass fiber plate.