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    AQUEOUS WATER BARRIER COATINGS
    1.
    发明公开
    AQUEOUS WATER BARRIER COATINGS 审中-实审

    公开(公告)号：EP4342919A2

    公开(公告)日：2024-03-27

    申请号：EP23217009.2

    申请日：2017-06-02

    申请人： BASF SE

    发明人： Deeter, Gary ,  Sardashti, Amirpouyan ,  Seecharan, Andrew ,  Reinhold, Frank

    IPC分类号： C08F212/12

    摘要： Described herein is a multi-phase polymer binder comprising:
    an aqueous polymer dispersion present in an amount of 65 wt% to 100 wt%;
    a hydrophobic emulsion from 0 wt% to 25 wt%; and
    a surfactant from 0 wt% to 10 wt%;
    wherein the polymer binder, when dried, provides a water uptake of less than 5 g/m 2 /20 min in accordance with Cobb test, a seal strength of at least 200 Newton/meter (N/m) as measured at 25 °C and 90 °C, and block resistance of 3 to 5 when measured at 50° C and 60 psi for 24 hours in accordance with the method described in the description, and
    the aqueous polymer dispersion comprises an acid-rich copolymer present in an amount of 5 wt% to 60 wt%; and an acid-free copolymer present in an amount of 40 wt% to 95 wt%, wherein the acid-rich copolymer comprises carboxylic acid functional monomers in an amount of 5 wt% to 25 wt%; styrene in an amount of up to 70 wt%; and (meth)acrylate monomers in an amount of 10 wt% to 90 wt%, and
    the acid-free copolymer comprises styrene in an amount of up to 50 wt%; and (meth)acrylate monomers in an amount of 50 wt% to less than 100 wt%, and
    wherein the aqueous polymer dispersion has a solids content (NV %) from 40.3 to 47.9%.

    THERMOPLASTIC RESIN COMPOSITION, METHOD FOR PREPARING SAME, AND MOLDED PRODUCT MANUFACTURED THEREFROM
    2.
    发明公开
    THERMOPLASTIC RESIN COMPOSITION, METHOD FOR PREPARING SAME, AND MOLDED PRODUCT MANUFACTURED THEREFROM 审中-实审

    公开(公告)号：EP4339244A1

    公开(公告)日：2024-03-20

    申请号：EP23818215.8

    申请日：2023-05-31

    申请人： LG Chem, Ltd.

    发明人： JEON, Jiyoon ,  AHN, Bong Keun ,  KIM, Min Jung ,  PARK, Jangwon ,  LEE, Eunji ,  KIM, Seyong

    IPC分类号： C08L51/04 ,  C08L25/12 ,  C08F285/00 ,  C08F265/06 ,  C08F212/12

    摘要： The present invention relates to a thermoplastic resin composition, a method of preparing the same, and a molded article manufactured using the same. More particularly, the present invention relates to a thermoplastic resin composition including an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A) including a seed obtained by polymerizing 35 to 58 % by weight of an alkyl acrylate and 42 to 65 % by weight of an aromatic vinyl compound, a rubber core formed to surround the seed and obtained by polymerizing 78 to 91 % by weight of an alkyl acrylate and 9 to 22 % by weight of an aromatic vinyl compound, and a graft shell formed to surround the rubber core and obtained by polymerizing 65 to 82 % by weight of an aromatic vinyl compound, 12 to 30 % by weight of a vinyl cyanide compound, and 3 to 15 % by weight of an alkyl acrylate; and a non-graft copolymer (B) including an alkyl (meth)acrylate, an alkyl-substituted styrene-based compound, and a vinyl cyanide compound, wherein the average particle diameter and refractive index of each layer of the graft copolymer (A) are properly adjusted, a method of preparing the thermoplastic resin composition, and a molded article manufactured using the thermoplastic resin composition.
    According to the present invention, the present invention has an effect of providing a thermoplastic resin composition having excellent transparency, gloss, blackness, weather resistance, heat resistance, and impact resistance, a method of preparing the same, and a molded article manufactured using the same.

    METHOD FOR PREPARING POLYMER
    6.
    发明公开
    METHOD FOR PREPARING POLYMER 审中-公开

    公开(公告)号：EP3971224A1

    公开(公告)日：2022-03-23

    申请号：EP21819015.5

    申请日：2021-07-01

    申请人： LG Chem, Ltd.

    发明人： HWANG, Jeong A ,  SHIN, Dae Young ,  JOO, Eun Jung

    IPC分类号： C08F212/12 ,  C08F6/00 ,  C08F2/01

    摘要： Provided is a method of preparing a polymer including: supplying a monomer stream and a solvent stream to a reactor and performing a polymerization reaction to prepare a reaction product; supplying a reactor discharge stream to a volatilization device, separating a polymer from a lower portion of the volatilization device, splitting an upper discharge stream including an unreacted monomer, a solvent, and an inert gas into two or more streams, and divisionally supplying the split streams to a plurality of condensers, respectively; condensing and separating the unreacted monomer and the solvent in each of the condensers and supplying a gaseous stream therefrom to a condenser installed at a rear end of each condenser; and supplying a gaseous stream discharged from a condenser installed at the rearmost end to a vacuum unit.