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1. 发明授权

US12139609B2 Resin composition comprising thermoplastic plastomer and hollow resin particles and molded product thereof 有权
公开(公告)号：US12139609B2
公开(公告)日：2024-11-12
申请号：US17279711
申请日：2019-09-13
申请人： ZEON CORPORATION
发明人： Takeshi Hirata , Takashi Iga
IPC分类号： C08L77/02 , C08F120/44 , C08F222/10 , C08F232/06 , C08L23/12 , C08L25/02 , C08L33/06
CPC分类号： C08L77/02 , C08F120/44 , C08F222/102 , C08F232/06 , C08L23/12 , C08L2205/20 , C08L2312/00 , C08L77/02 , C08L33/064 , C08L77/02 , C08L25/02 , C08L23/12 , C08L33/064 , C08F222/102 , C08F220/06 , C08F220/14 , C08F212/36 , C08F220/06 , C08F220/14
摘要： Provided is a resin composition configured to show a small change in the void ratio of hollow resin particles during mold processing and configured to stably mold a lightweight molded product. The resin composition is a resin composition comprising 50 parts by mass to 95 parts by mass of a thermoplastic plastomer and 5 parts by mass to 50 parts by mass of hollow resin particles, wherein the hollow resin particles have a void ratio of from 50% to 85%; wherein the hollow resin particles have a shell containing a resin; and wherein, with respect to 100 parts by mass of repeating units constituting the resin, 30 parts by mass to 100 parts by mass of a crosslinkable monomer unit and 0 part by mass to 70 parts by mass of a non-crosslinkable monomer unit are contained as a polymerizable monomer unit.

2. 发明授权

US11760857B2 Method for producing latex and method for producing hollow resin particles 有权
公开(公告)号：US11760857B2
公开(公告)日：2023-09-19
申请号：US16634233
申请日：2018-07-31
申请人： ZEON CORPORATION
发明人： Takashi Iga , Takeshi Hirata , Nozomi Yabuki
IPC分类号： C08J9/20 , C08F2/44 , C08F6/24 , C08J3/03 , C08L13/02
CPC分类号： C08J9/20 , C08F2/44 , C08F6/24 , C08J3/03 , C08L13/02 , C08J2313/02
摘要： Provided is a method for producing a latex comprising hollow resin particles each with a high void ratio and a method for producing hollow resin particles each with a higher void ratio. In the method for producing the latex: a suspension treatment of the mixture liquid which comprises a monomer, a crosslinkable monomer, an oil-soluble polymerization initiator, a fat/fatty oil, a hydrocarbon solvent, a suspension stabilizer and an aqueous medium is carried out to prepare a suspension comprising monomer drops; a polymerization reaction of the suspension is carried out to prepare a precursor composition which comprises precursor particles each having a hollow portion including the hydrocarbon solvent.

3. 发明申请

US20220153881A1 METHOD FOR PRODUCING HOLLOW RESIN PARTICLES 有权
公开(公告)号：US20220153881A1
公开(公告)日：2022-05-19
申请号：US17425987
申请日：2020-01-30
申请人： ZEON CORPORATION
发明人： Takashi Iga , Nozomi Yabuki
IPC分类号： C08F2/18 , C08F222/10 , C08F220/18 , C08F220/06 , C08F212/12
摘要： The method for producing hollow resin particles includes: carrying out a suspension treatment of a mixture liquid including a polymerizable monomer including a non-crosslinkable monomer and a crosslinkable monomer, a hydrocarbon solvent and an aqueous medium to prepare a suspension, carrying out a polymerization reaction of the suspension to form precursor particles having a hollow portion and including the hydrocarbon solvent in the hollow portion, and removing the hydrocarbon solvent included in the precursor particles to produce hollow resin particles. A content of the crosslinkable monomer is from 35 parts by mass to 95 parts by mass when the total mass of the polymerizable monomer is regarded as 100 parts by mass; a solubility parameter (SP value) of the polymerizable monomer is from 8.70 to 9.42; and a difference between the SP value of the polymerizable monomer and a SP value of the hydrocarbon solvent is 0.60 or more.

4. 发明授权

US12139594B2 Resin composition and molded product thereof 有权
公开(公告)号：US12139594B2
公开(公告)日：2024-11-12
申请号：US17279720
申请日：2019-09-13
申请人： ZEON CORPORATION
发明人： Takeshi Hirata , Takashi Iga
IPC分类号： C08L23/00 , C08L25/06 , C08L75/04
CPC分类号： C08L23/00 , C08L25/06 , C08L75/04 , C08L2205/03 , C08L2207/53 , C08L2312/00
摘要： Provided is a resin composition configured to show a small change in the void ratio of hollow resin particles during mold processing and configured to stably mold a lightweight molded product having a small variation in specific gravity. The resin composition is a resin composition comprising 50 parts by mass to 95 parts by mass of a thermoplastic elastomer and 5 parts by mass to 50 parts by mass of hollow resin particles, wherein the hollow resin particles have a void ratio of from 50% to 85%; wherein the hollow resin particles have a shell containing a resin; and wherein, with respect to 100 parts by mass of repeating units constituting the resin, 30 parts by mass to 100 parts by mass of a crosslinkable monomer unit and 0 part by mass to 70 parts by mass of a non-crosslinkable monomer unit are contained as a polymerizable monomer unit.

5. 发明授权

US11525046B2 Foam 有权
公开(公告)号：US11525046B2
公开(公告)日：2022-12-13
申请号：US16769660
申请日：2018-12-10
申请人： ZEON CORPORATION
发明人： Tomoya Taniyama , Takashi Iga
IPC分类号： C08J9/30
摘要： A foam containing a nitrile group-containing conjugated diene copolymer and a urethane polymer, wherein relative to 100 wt % of the sum of the nitrile group-containing conjugated diene copolymer and the urethane polymer, the nitrile group-containing conjugated diene copolymer is present in an amount of less than 90 wt % and the urethane polymer is present in an amount of more than 10 wt %, the nitrile group-containing conjugated diene copolymer contains ethylenically unsaturated nitrile monomer units in an amount of more than 31 wt %, the foam has a density of 0.08 to 0.30 g/cm3, and in observation of an arbitrary cross section of the foam, air bubble cross sections present in the cross section have an average diameter of 350 μm or less, and the number of air bubble cross sections with a diameter of 0.6 mm or more present in the cross section is 0.062 per mm2 or less.

6. 发明申请

US20220033652A1 RESIN COMPOSITION AND MOLDED PRODUCT THEREOF 有权
公开(公告)号：US20220033652A1
公开(公告)日：2022-02-03
申请号：US17279711
申请日：2019-09-13
申请人： ZEON CORPORATION
发明人： Takeshi Hirata , Takashi Iga
IPC分类号： C08L77/02 , C08F222/10 , C08F232/06 , C08F120/44
摘要： Provided is a resin composition configured to show a small change in the void ratio of hollow resin particles during mold processing and configured to stably mold a lightweight molded product. The resin composition is a resin composition comprising 50 parts by mass to 95 parts by mass of a thermoplastic plastomer and 5 parts by mass to 50 parts by mass of hollow resin particles, wherein the hollow resin particles have a void ratio of from 50% to 85%; wherein the hollow resin particles have a shell containing a resin; and wherein, with respect to 100 parts by mass of repeating units constituting the resin, 30 parts by mass to 100 parts by mass of a crosslinkable monomer unit and 0 part by mass to 70 parts by mass of a non-crosslinkable monomer unit are contained as a polymerizable monomer unit.

7. 发明申请

US20210087349A1 METHOD FOR PRODUCING LATEX AND METHOD FOR PRODUCING HOLLOW RESIN PARTICLES 有权
公开(公告)号：US20210087349A1
公开(公告)日：2021-03-25
申请号：US16634233
申请日：2018-07-31
申请人： ZEON CORPORATION
发明人： Takashi Iga , Takeshi Hirata , Nozomi Yabuki
IPC分类号： C08J9/20 , C08F6/24 , C08F2/44 , C08J3/03 , C08L13/02
摘要： Provided is a method for producing a latex comprising hollow resin particles each with a high void ratio and a method for producing hollow resin particles each with a higher void ratio. In the method for producing the latex: a suspension treatment of the mixture liquid which comprises a monomer, a crosslinkable monomer, an oil-soluble polymerization initiator, a fat/fatty oil, a hydrocarbon solvent, a suspension stabilizer and an aqueous medium is carried out to prepare a suspension comprising monomer drops; a polymerization reaction of the suspension is carried out to prepare a precursor composition which comprises precursor particles each having a hollow portion including the hydrocarbon solvent.

8. 发明授权

US10568212B2 Manufacturing method for multi-layer printed circuit board 有权
公开(公告)号：US10568212B2
公开(公告)日：2020-02-18
申请号：US15528081
申请日：2015-11-26
申请人： ZEON CORPORATION
发明人： Makoto Fujimura , Takashi Iga , Akihiro Tanabe
IPC分类号： H05K3/00 , B23K26/382 , H05K1/03 , H05K3/46
摘要： The present invention enables the manufacture of a small-sized high-density multi-layer printed circuit board. The manufacturing method for a multi-layer printed circuit board, according to the present invention, comprises: a step in which an electrical insulation layer is formed by heating a laminate comprising a substrate, a heat-curable resin composition layer provided on the substrate, and a release substrate provided on the heat-curable resin composition layer, thereby curing the heat-curable resin composition layer, and a step in which a via hole is formed in the electrical insulation layer by irradiating a laser from above the release substrate. In addition, in the present invention, the release substrate has a thickness of at least 80 μm and is formed using a material having a glass transition temperature, the heat-curable resin composition layer has a volatile component-content of 7.0 mass % or less and a thickness of 25 μm or less, and the curing of the heat-curable resin composition layer occurs at a temperature that is not less than the glass transition temperature of the material of the release substrate.

9. 发明授权

US12061440B2 Method for manufacturing toner for electrostatic charge image development 有权
公开(公告)号：US12061440B2
公开(公告)日：2024-08-13
申请号：US17418941
申请日：2019-12-26
申请人： ZEON CORPORATION
发明人： Kojiro Akazaki , Takeru Chiba , Takashi Iga
IPC分类号： G03G9/087 , G03G9/08
CPC分类号： G03G9/081 , G03G9/08755 , G03G9/08795 , G03G9/08797
摘要： The present invention provides a method for producing a toner for electrostatic-image development comprising: a dispersing step of performing a dispersing treatment in which a cavitation effect is obtained on a color resin particle containing a binder resin, a colorant, a charge control agent, and a release agent in an aqueous dispersion medium so as to obtain a dispersion of the color resin particle; and a heating step of performing a heat treatment on the dispersion of the color resin particle at a temperature of equal to or more than a glass transition temperature of the color resin particle and 95° C. or less for a heating time of 5 minutes or more and 10 hours or less.

10. 发明授权

US11926763B2 Hollow resin particles and sheet 有权
公开(公告)号：US11926763B2
公开(公告)日：2024-03-12
申请号：US16981775
申请日：2019-03-25
申请人： ZEON CORPORATION
发明人： Takashi Iga , Takeshi Hirata , Nozomi Yabuki
IPC分类号： C09D7/65 , B41M5/44 , C08F22/14 , C09D7/40
CPC分类号： C09D7/65 , B41M5/44 , C08F22/14 , C09D7/68 , C09D7/69
摘要： Provided is hollow resin particles having higher compressive strength and more excellent heat insulating properties and heat resistance than before. The hollow resin particles each having one or two or more hollow portions, wherein a number average particle diameter is from 0.1 μm to 9.0 μm, a void ratio is from 70% to 99%, and an amount of the volatile organic compound contained is 5% by mass or less.

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