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公开(公告)号：US11384220B2
公开(公告)日：2022-07-12
申请号：US16339467
申请日：2016-10-17
摘要： Provided is a white resin composition that can maintain a high degree of whiteness even after undergoing a thermal resistance test. A white resin composition contains: a white pigment; a surface-treated calcium carbonate in which particle surfaces of a synthetic calcium carbonate with an average particle diameter of 0.05 to 1 μm are subjected to surface treatment with a condensed phosphoric acid and an organic modified silicone oil; and a resin, wherein a content ratio between the white pigment and the surface-treated calcium carbonate is, in mass ratio (white pigment to surface-treated calcium carbonate), within a range of 90:10 to 60:40, and a total content of the white pigment and the surface-treated calcium carbonate in the resin composition is within a range of 5 to 70% mass.
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公开(公告)号：US20220220283A1
公开(公告)日：2022-07-14
申请号：US17607122
申请日：2020-05-20
摘要： Provided is a surface-treated calcium carbonate that can make a vinyl chloride-based resin composition less colorable in a weathering test and excellent in impact strength. The surface-treated calcium carbonate is a calcium carbonate subjected to treatment with a surface treatment agent in which a proportion of saturated fatty acid contained in a fatty acid is 85% by mass or more, and has a content of elemental iron of 0.01% by mass or less, a content of elemental zinc of 0.1 to 2% by mass introduced by the treatment with the surface treatment agent, and a BET specific surface area of 5 to 30 m2/g.
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公开(公告)号：US20210355295A1
公开(公告)日：2021-11-18
申请号：US17320788
申请日：2021-05-14
发明人： Kenichiro Eguchi , Yutaka Minamino
摘要： A light reflecting body includes a base containing a resin material and a calcium carbonate and includes a metal layer on the surface of the base. The resin material is selected from a polyester resin composition, a polyarylate resin composition, and a mixed resin composition thereof. The calcium carbonate has a BET specific surface area of 1 to 15 m2/g, a pore distribution curve determined by mercury porosimetry that the top of a peak representing interparticle void size is in a pore size range of 0.1 to 1.0 μm, a particle size distribution determined by using an electron microscope that the proportion of particles having a particle size of 0.1 μm or less is 10% or less of the calcium carbonate, and the residue on a sieve having a mesh size of 45 μm after wet sieving of the calcium carbonate is 0.1% or less.
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公开(公告)号：US20200040158A1
公开(公告)日：2020-02-06
申请号：US16339467
申请日：2016-10-17
摘要： Provided is a white resin composition that can maintain a high degree of whiteness even after undergoing a thermal resistance test. A white resin composition contains: a white pigment; a surface-treated calcium carbonate in which particle surfaces of a synthetic calcium carbonate with an average particle diameter of 0.05 to 1 μm are subjected to surface treatment with a condensed phosphoric acid and an organic modified silicone oil; and a resin, wherein a content ratio between the white pigment and the surface-treated calcium carbonate is, in mass ratio (white pigment to surface-treated calcium carbonate), within a range of 90:10 to 60:40, and a total content of the white pigment and the surface-treated calcium carbonate in the resin composition is within a range of 5 to 70% mass.
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公开(公告)号：US11939448B2
公开(公告)日：2024-03-26
申请号：US17320788
申请日：2021-05-14
发明人： Kenichiro Eguchi , Yutaka Minamino
CPC分类号： C08K3/26 , G02B5/0808 , C08K2003/265 , C08K2201/005 , C08K2201/006
摘要： A light reflecting body includes a base containing a resin material and a calcium carbonate and includes a metal layer on the surface of the base. The resin material is selected from a polyester resin composition, a polyarylate resin composition, and a mixed resin composition thereof. The calcium carbonate has a BET specific surface area of 1 to 15 m2/g, a pore distribution curve determined by mercury porosimetry that the top of a peak representing interparticle void size is in a pore size range of 0.1 to 1.0 μm, a particle size distribution determined by using an electron microscope that the proportion of particles having a particle size of 0.1 μm or less is 10% or less of the calcium carbonate, and the residue on a sieve having a mesh size of 45 μm after wet sieving of the calcium carbonate is 0.1% or less.
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公开(公告)号：US11702530B2
公开(公告)日：2023-07-18
申请号：US17607122
申请日：2020-05-20
CPC分类号： C08K9/04 , C08K3/26 , C08L27/06 , C09C3/08 , C08K2003/265
摘要： Provided is a surface-treated calcium carbonate that can make a vinyl chloride-based resin composition less colorable in a weathering test and excellent in impact strength. The surface-treated calcium carbonate is a calcium carbonate subjected to treatment with a surface treatment agent in which a proportion of saturated fatty acid contained in a fatty acid is 85% by mass or more, and has a content of elemental iron of 0.01% by mass or less, a content of elemental zinc of 0.1 to 2% by mass introduced by the treatment with the surface treatment agent, and a BET specific surface area of 5 to 30 m2/g.
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公开(公告)号：US10995200B2
公开(公告)日：2021-05-04
申请号：US16307790
申请日：2017-05-31
IPC分类号： C08K3/34 , C08K9/06 , C09C1/42 , C09C3/12 , C08L25/04 , C08L67/00 , C08L77/00 , C08L81/02 , C08L101/00 , C08L67/02
摘要： Provided are a kaolin clay for a thermoplastic resin composition that can provide high impact strength and glossiness and a thermoplastic resin composition containing the same. A kaolin clay for a thermoplastic resin composition is subjected to a surface treatment with 0.2 to 10 parts by mass of at least one selected from the group consisting of methyl silicate, ethyl silicate, propyl silicate, and butyl silicate relative to 100 parts by mass of the kaolin clay.
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公开(公告)号：US20190177512A1
公开(公告)日：2019-06-13
申请号：US16307790
申请日：2017-05-31
摘要： Provided are a kaolin clay for a thermoplastic resin composition that can provide high impact strength and glossiness and a thermoplastic resin composition containing the same. A kaolin clay for a thermoplastic resin composition is subjected to a surface treatment with 0.2 to 10 parts by mass of at least one selected from the group consisting of methyl silicate, ethyl silicate, propyl silicate, and butyl silicate relative to 100 parts by mass of the kaolin clay.
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