# US 11,898,017 B2 · Reinforcing material and resin molded article

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- Number: US 11,898,017 B2
- Document ID: US11898017B2
- Status: Granted
- Kind: B2
- Application number: 16/485,720
- Filed: 2018-02-14
- Published: 2023-05-25
- Granted: 2024-02-13
- Earliest claimed: 2017-02-20
- Assignees: Nippon Sheet Glass Co., Ltd.
- Applicants: Nippon Sheet Glass Company, Limited
- Inventors: Masanori Otani; Akiyoshi Yasuda; Shinichi Kato
- Web page: https://patentgrep.com/patent/US11898017B2

## CPC

- C08J 5/10: characterised by the additives used in the polymer mixture
- B29C 45/00: Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor (injection blow-moulding B29C49/06)
- C03C 17/30: with silicon-containing compounds
- C03C 25/10: Coating
- C03C 25/326: Polyureas; Polyurethanes
- C03C 25/36: Epoxy resins
- C03C 25/40: Organo-silicon compounds
- C08J 5/08: glass fibres
- C08K 7/00: Use of ingredients characterised by shape
- C08K 7/14: Glass
- C08K 9/04: Ingredients treated with organic substances {(treated with macromolecular compounds C08K9/08)}
- C08K 9/06: with silicon-containing compounds
- C08K 9/08: Ingredients agglomerated by treatment with a binding agent
- C08L 81/02: Polythioethers; Polythioether-ethers
- C08L 101/00: Compositions of unspecified macromolecular compounds
- D06M 13/513: with at least one carbon-silicon bond
- D06M 15/55: Epoxy resins
- D06M 15/564: Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
- C08J 2381/02: Polythioethers; Polythioether-ethers
- C08J 2381/04: Polysulfides
- C08K 2201/014: Additives containing two or more different additives of the same subgroup in C08K
- C08K 2201/016: Additives defined by their aspect ratio
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)
- 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)
- C03C: CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- D06M: TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS

## Abstract

A reinforcing material is disclosed that includes coated glass flakes and coated glass strands. When the total amount of a glycidyl group-including resin and aminosilane contained in the coatings of the coated glass flakes corresponds to 100% by mass, the amount of the resin is 30% to 95% by mass. When the total amount of a glycidyl group-including resin, aminosilane, and a urethane resin contained in the coatings of the coated glass strands corresponds to 100% by mass, the amount of the glycidyl group-including resin is 10% to 90% by mass, the amount of the aminosilane is 0.1% to 40% by mass, and the amount of the urethane resin is 1% to 50% by mass. Both the coated glass flakes and the coated glass strands have an ignition loss of 0.1% to 2.0% by mass measured pursuant to JIS R3420 (2013).

## Claims

### Claim 1

A reinforcing material for use with a thermoplastic resin, the reinforcing material comprising:
coated glass flakes; and
coated glass strands,
wherein each of the coated glass strands includes a plurality of glass filaments and a coating formed on the glass filaments,
the glass flakes have a thickness of 0.1 to 4.0 μm,
the glass flakes have an average particle diameter of 10 to 800 μm,
the coatings on the glass flakes contain a first glycidyl group-including resin and aminosilane,
the coatings on the glass flakes contain the first glycidyl group-including resin in an amount of 30% to 95% by mass when a total amount of the first glycidyl group-including resin and the aminosilane, corresponds to 100% by mass,
the coated glass flakes have an ignition loss of 0.1% to 2.0% by mass measured pursuant to JIS R3420 (2013),
the coatings on the glass filaments contain a second glycidyl group-including resin, aminosilane, and a urethane resin,
the coatings on the glass filaments contain the second glycidyl group-including resin in an amount of 10% to 90% by mass, the aminosilane in an amount of 0.1% to 40% by mass, and the urethane resin in an amount of 1% to 50% by mass when a total amount of the second glycidyl group-including resin, the aminosilane, and the urethane resin corresponds to 100% by mass, and the coated glass strands have an ignition loss of 0.1% to 2.0% by mass measured pursuant to JIS R3420 (2013); and
wherein the reinforcing material has a mass ratio of coated glass flakes to coated glass strands of 1 to 15/25 to 70.

### Claim 2 (depends on 1)

A resin molded article, comprising:
a thermoplastic resin; and
the reinforcing material according to claim 1.

### Claim 3 (depends on 2)

The resin molded article according to claim 2, wherein the thermoplastic resin is polyphenylene sulfide.

### Claim 4 (depends on 2)

The resin molded article according to claim 2, wherein the resin molded article includes the coated glass flakes in an amount of 1% to 35% by mass and the coated glass strands in an amount of 5% to 70% by mass when a total amount of the thermoplastic resin, the coated glass flakes, and the coated glass strands corresponds to 100% by mass.

### Claim 5 (depends on 3)

The resin molded article according to claim 3, wherein the resin molded article includes the coated glass flakes in an amount of 1% to 35% by mass and the coated glass strands in an amount of 5% to 70% by mass when a total amount of the thermoplastic resin, the coated glass flakes, and the coated glass strands corresponds to 100% by mass.