Back to results
US 10,472,508 B2Granted
Polypropylene composite resin composition with fiber texture
AssigneesHyundai Motor Company, Kia Motors Corporation, Hyundai EP Co., Ltd.
InventorsHan Ki Lee, Hak Soo Kim, Chang Hyeon Noh, Dong Han Kim, Kyung Soon Jang, Beom Ho Kim, Hyeok Lee, Wan Jo
Life of this patent
Estimating the term…
Abstract
A polypropylene composite resin composition with fiber texture includes a polypropylene resin including homo-polypropylene, a first ethylene-propylene copolymer, a second ethylene-propylene copolymer or a combination thereof, and an ethylene/α-olefin copolymer, and a molded article manufactured using the same.
Claims16
A polypropylene composite resin composition with fiber texture comprising:
- a polypropylene resin comprising one or more selected from the group consisting of homo-polypropylene, a first ethylene-propylene copolymer, a second ethylene-propylene copolymer and a combination thereof;
- a fibrous polymer;
- wood ingredient;
- and
- an ethylene/α-olefin copolymer,
- wherein the first ethylene-propylene copolymer has a melt index of 1 g/10 min (2.16 kg, 230° C.) to 60 g/10 min (2.16 kg, 230° C.), and is obtained by polymerizing 50% by weight to 99% by weight of a propylene monomer with 1% by weight to 50% by weight of an ethylene monomer,
- wherein the second ethylene-propylene copolymer has a melt index of 1 g/10 min (2.16 kg, 230° C.) to 100 g/10 min (2.16 kg, 230° C.), is obtained by polymerizing 90% by weight to 99.9% by weight of a propylene monomer with 0.1% by weight to 10% by weight of an ethylene monomer, and has an isotactic index of 97% or more,
- wherein the wood ingredient is selected from the group consisting of coniferous wood flour, broadleaved wood flour, a wood chip, softwood pulp (SWP), hardwood pulp (HWP) and a combination thereof, and
- wherein the wood ingredient has a particle size of 210 μm to 300 μm.
6 more elements
A polypropylene composite resin composition with fiber texture comprising:
- a polypropylene resin in an amount of 50% by weight to 70% by weight of the total composite resin composition;
- an ethylene/α-olefin copolymer in an amount of 5% by weight to 25% by weight of the total composite resin composition;
- an inorganic reinforcing material 1% by weight to 15% by weight of the total composite resin composition;
- a fibrous polymer in an amount of 1.5% by weight to 5% by weight of the total composite resin composition;
- a wood ingredient in an amount of 2% by weight to 10% by weight of the total composite resin composition;
- and
- a stone ingredient in an amount of 1% by weight to 10% by weight of the total composite resin composition,
- wherein the polypropylene resin comprises:
- a first ethylene-propylene copolymer having a melt index of 1 g/10 min (2.16 kg, 230° C.) to 60 g/10 min (2.16 kg, 230° C.) and being obtained by polymerizing 50% by weight to 99% by weight of a propylene monomer with 1% by weight to 50% by weight of an ethylene monomer;
- and a second ethylene-propylene copolymer having a melt index of 1 g/10 min (2.16 kg, 230° C.) to 100 g/10 min (2.16 kg, 230° C.), being obtained by polymerizing 90% by weight to 99.9% by weight of a propylene monomer with 0.1% by weight to 10% by weight of an ethylene monomer, and has an isotactic index of 97% or more,
- wherein the ethylene/α-olefin copolymer has a Mooney viscosity of 5 ML1+4 (121° C.) to 50 ML1+4 (121° C.) and a glass transition temperature of −60° C. to −40° C.,
- wherein the inorganic reinforcing material is selected from the group consisting of talc having a sheet shape and a particle size of 0.5 μm to 10 μm, whisker having an acicular shape and having a length of 10 μm to 35 μm and a diameter of 0.3 μm to 1.5 μm, and a combination thereof,
- wherein the fibrous polymer is selected from the group consisting of nylon, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), cellulose and a combination thereof,
- wherein the fibrous polymer has a diameter of 3 μm to 40 μm and a length of 0.3 mm to 4 mm,
- wherein the wood ingredient is selected from the group consisting of coniferous wood flour, broadleaved wood flour, a wood chip, softwood pulp (SWP), hardwood pulp (HWP) and a combination thereof,
- the wood ingredient has a particle size of 210 μm to 300 μm,
- wherein the stone ingredient is selected from the group consisting of scoria, basalt and a combination thereof, and
- the stone ingredient has a particle size of 10 μm to 150 μm.
15 more elements
Dependencies are inferred from the claim text.