公开(公告)号：US20240309248A1

公开(公告)日：2024-09-19

申请号：US18658494

申请日：2024-05-08

申请人： KURARAY CO., LTD.

发明人： Tadahito Fukuhara ,  Tatsuya Tanida

IPC分类号： C09J129/04 ,  C08F8/12 ,  C08F210/02 ,  C08F216/06 ,  C08F218/08 ,  C08K3/34 ,  C08K5/098 ,  C08L29/04

CPC分类号： C09J129/04 ,  C08F210/02 ,  C08F216/06 ,  C08F218/08 ,  C08K5/098 ,  C08L29/04 ,  C08F8/12 ,  C08K3/346

摘要： The present invention provides a resin material that comprises an ethylene-modified vinyl alcohol polymer as a main component, and that excels in hue, water solubility, and aqueous-solution viscosity stability. The present invention also provides an aqueous solution and an adhesive comprising such a resin material. The present invention relates to a resin material comprising an ethylene-modified vinyl alcohol polymer and sodium acetate, wherein:



the ethylene-modified vinyl alcohol polymer has an ethylene unit content of 1 10 mol % or more and less than 15 mol %, a viscosity-average degree of polymerization of 200 or more and less than 3,000, and a degree of saponification of 80 mol % or more and less than 99.9 mol %, and comprises 0.0005 mol % or more and 0.10 mol % or less of a propyl group at one end of the polymer, and
the sodium acetate content is 0.05 mass % or more and less than 2 mass %.

公开(公告)号：US20240287743A1

公开(公告)日：2024-08-29

申请号：US18567147

申请日：2022-06-21

申请人： Rohm and Haas Company ,  Dow Global Technologies LLC

发明人： Xiangyi Zhang ,  John A. Roper, III ,  Andrew Hejl ,  Brian R. Einsla ,  Matthew Carter

IPC分类号： D21H19/12 ,  C08F218/08 ,  C09D5/02 ,  C09D131/04 ,  D21H23/52

CPC分类号： D21H19/12 ,  C08F218/08 ,  C09D5/022 ,  C09D131/04 ,  D21H23/52 ,  C08F2800/20

摘要： The present invention relates to a method comprising the steps of applying to a paper or paperboard substrate an aqueous dispersion of polymer particles which comprise structural units of a vinyl ester, vinyl alcohol, and an acrylate monomer, then drying the composition. The method provides a coating that has oil and grease resistance, mineral oil barrier performance, and beat scalability.

公开(公告)号：US12054881B2

公开(公告)日：2024-08-06

申请号：US17688237

申请日：2022-03-07

申请人： Synthomer Deutschland GmbH

发明人： Helmut Daum ,  Matthias Renka ,  Gudrun Hill ,  Claudia Deutscher ,  Dieter Wolters

IPC分类号： D06M15/273 ,  C08F218/08 ,  C08F220/18 ,  C08L31/04 ,  C08L33/06 ,  C08L33/08 ,  C08L33/12 ,  C09J131/04 ,  C09J133/06 ,  C09J143/04 ,  D06M15/285 ,  D06M15/263 ,  D06M15/356

CPC分类号： D06M15/273 ,  C08F218/08 ,  C08F220/1804 ,  C08L31/04 ,  C08L33/062 ,  C08L33/08 ,  C08L33/12 ,  C09J131/04 ,  C09J133/068 ,  C09J143/04 ,  C08L2201/54 ,  D06M15/263 ,  D06M15/285 ,  D06M15/3566 ,  D06M15/3568 ,  C08L31/04 ,  C08L33/08 ,  C08F218/08 ,  C08F220/1804 ,  C08F220/56 ,  C08F228/02 ,  C08F220/06 ,  C08F218/08 ,  C08F220/1804 ,  C08F220/325 ,  C08F220/56 ,  C08F228/02 ,  C08F220/06 ,  C09J133/068 ,  C08L33/062 ,  C08L2201/54 ,  C09J143/04 ,  C08L33/062 ,  C08L2201/54 ,  C09J131/04 ,  C08L33/08 ,  C09J131/04 ,  C08L33/12 ,  C08F218/08 ,  C08F220/1804 ,  C08F220/56 ,  C08F228/02 ,  C08F230/085 ,  C08F220/06

摘要： The present invention relates to polymer latex composition for fibre binding comprising: a) 50 to 98 wt.-% based on the total weight of latex particles in the composition of first latex particles having a volume average particle size of 80 to 1000 nm, wherein the first latex particles optionally bear functional groups and if functional groups are present they are selected from functional groups consisting of acid functional groups and salts, amides or anhydrides thereof, silane functional groups, and combinations thereof; b) 2 to 50 wt.-% based on the total weight of latex particles in the composition of second latex particles having a volume average particle size of 5 to 70 nm bearing epoxy functional groups, to the use of that composition for fibre binding, to a fibre structure comprising the dried residue of that composition and to a method for increasing the strength of a fibre structure.

公开(公告)号：US20230357468A1

公开(公告)日：2023-11-09

申请号：US17795938

申请日：2021-03-19

申请人： Arkema Inc.

发明人： Jeremy L. Grove ,  Michael Drewery

IPC分类号： C08F218/08 ,  C09D131/04

CPC分类号： C08F218/08 ,  C09D131/04

摘要： Waterborne vinyl acetate-acrylic, “vinyl acrylic” emulsion copolymers which can be used in architectural coatings and impart stain resistance to such coatings are provided. The vinyl acrylic emulsion copolymer particles in the emulsion may contain one or more particle size modes, each with a respective narrow particle size distribution. The vinyl acrylic emulsion copolymers contain as a comonomer an ethylenically unsaturated monomer and also contain a hydrolyzable silane comonomer. The hydrolyzable silane may be present as a comonomer in the vinyl acrylic copolymer and/or may be added to the vinyl acrylic emulsion copolymer emulsion in the form of a hydrolyzable silane that may have a reactive group that is capable of reacting with the vinyl acrylic copolymer.

公开(公告)号：US20230257174A1

公开(公告)日：2023-08-17

申请号：US18003797

申请日：2021-06-14

申请人： KURARAY CO., LTD.

发明人： Minoru Okamoto ,  Sayaka Shimizu ,  Osamu Kazeto

IPC分类号： B65D65/46 ,  B65D65/42 ,  C08J5/18 ,  C08F218/08

CPC分类号： B65D65/46 ,  B65D65/42 ,  C08J5/18 ,  C08F218/08

摘要： [Problem to be solved] To provide a water-soluble film capable of suppressing formation of holes when used as a package while maintaining water solubility, and a package using such a water-soluble film.
[Solution] A water-soluble film containing a polyvinyl alcohol resin, wherein within a square A1 with a side of 1 cm or more and 5 cm or less positioned at an arbitrary location on at least one surface of the water-soluble film, each side of an area of square A2 with a side of 5 μm is divided into 64 to divide the entire area into 4096 pixels, and when elastic moduli of the pixels are measured by an atomic force microscope, a number average value of the elastic moduli of the pixels is 1 to 200 MPa, and a coefficient of variation of the elastic moduli of the pixels is 0.1 to 0.7.

公开(公告)号：US20230151147A1

公开(公告)日：2023-05-18

申请号：US17917366

申请日：2021-04-08

申请人： CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE TOULOUSE III - PAUL SABATIER

发明人： Simon HARRISSON ,  Mathias DESTARAC

IPC分类号： C08G63/688 ,  C08G63/08 ,  C08F218/08 ,  C08F2/02 ,  C08F2/04

CPC分类号： C08G63/688 ,  C08G63/08 ,  C08F218/08 ,  C08F2/02 ,  C08F2/04 ,  C08G2230/00

摘要： A process for preparing preferably degradable copolymers by free radical ring-opening polymerization using thionolactone monomers or thionocarbonate monomers, in the presence of a radical polymerization initiator. Also, the copolymers, which include thioester or thiocarbonate bonds, that are obtained by carrying out the process including the free radical ring-opening polymerization using thionolactone monomers or thionocarbonate monomers.

公开(公告)号：US20230068813A1

公开(公告)日：2023-03-02

申请号：US17787875

申请日：2020-12-15

申请人： Solvay SA

发明人： Sophie Deroo ,  Emanuele Di Nicolo ,  Guillaume Gody ,  Marie-Pierre Labeau ,  Bertrand Pavageau ,  David James Wilson ,  Hamza Chouirfa

IPC分类号： C08F214/22 ,  C08F218/08 ,  C08F220/56 ,  C08F220/58 ,  B01D71/34 ,  B01D71/42 ,  C08J5/18

摘要： The present invention pertains to composition suitable for manufacturing membranes based on vinylidene fluoride (VDF) polymers, to porous membranes thereof, to methods for their manufacture and to uses thereof, especially for the filtration of water phases. Said composition comprising vinylidene fluoride (VDF) polymers and polymer additives comprising zwitterionic moieties delivers outstanding hydrophilization performances of manufactured membranes.

公开(公告)号：US20220389141A1

公开(公告)日：2022-12-08

申请号：US17626613

申请日：2020-06-05

申请人： ZEON CORPORATION

发明人： Hirofumi MASUDA ,  Nobuhiro TSUNEKUNI

IPC分类号： C08F220/18 ,  C08F220/28 ,  C08F218/08 ,  C08F2/26 ,  C08F2/30 ,  C08F6/22 ,  B29C48/00

摘要： An acrylic rubber including: a polymer composition of: 70 to 99.9% by weight of a bonding unit derived from at least one (meth) acrylic acid ester selected from (meth) acrylic acid alkyl ester and (meth) acrylic acid alkoxyalkyl ester; 0.1 to 10% by weight of a bonding unit derived from a monomer containing a reactive group; and 0 to 20% by weight of a bonding unit derived from other monomer, wherein ash content is 0.15% by weight or less, total amount of sodium and sulfur in the ash is 60% by weight or more, a ratio of sodium to sulfur by weight ratio is in the range of 0.5 to 2.5, ratio of Z-average molecular weight to weight average molecular weight is 1.3 or more, and weight average molecular weight is in the range of 1,000,000 to 5,000,000.

公开(公告)号：US11498988B2

公开(公告)日：2022-11-15

申请号：US16768149

申请日：2018-11-29

申请人： Flint Group Germany GmbH ,  Kuraray Europe GmbH

发明人： Christian Pietsch ,  Thomas Telser ,  Caroline Hartmann ,  Uwe Krauss ,  Moritz C. Baier

IPC分类号： C08F218/08 ,  C08F8/12 ,  C08F8/14 ,  C08F216/06 ,  C08J3/00

摘要： A method for the production of functionalized partially hydrolyzed polyvinyl acetate comprising vinyl alcohol, vinylacetate and functionalized vinyl alcohol units by reacting in a melt a partially hydrolyzed polyvinyl acetate as component A with a reactive compound carrying at least one ethylenically unsaturated group and at least one reactive group reactive with hydroxyl or acetate groups as component B, in the presence of at least one stabilizer as component C and in the presence of at least one catalyst selected from the group consisting of tertiary amines and nitrogen-containing heterocycles as component D, the method comprising the steps: feeding the components into a mixing device capable of heating, melting and mixing components A, B, C and D, heating, melting and mixing components A, B, C and D in the device to give a melt and reacting components A and B in the melt.

公开(公告)号：US11441062B1

公开(公告)日：2022-09-13

申请号：US17647041

申请日：2022-01-05

申请人： Southwest Petroleum University

发明人： Yang Bai ,  Chunyan Liu ,  Pingya Luo ,  Gang Xie ,  Danchao Huang ,  Dezhi Liu ,  Hongbo Li ,  Daoxiong Li ,  Chaowei Hu

IPC分类号： C08F297/02 ,  C09K8/34 ,  C08F218/08

摘要： A method of preparing a modified polyvinyl acetate includes subjecting a mixed liquor L1 containing a functional monomer to a first reaction with a first vinyl acetate monomer, followed by adding a first initiator to carry out a second reaction to obtain a mixed liquor L2; subjecting an acrylate monomer, a second vinyl acetate monomer, a second initiator and the mixed liquor L2 to carry out a third reaction to obtain a mixed liquor L3; and subjecting a third initiator and the mixed liquor L3 to carry out a fourth reaction under the air-tight and ultrasonic conditions. The functional monomer is selected from acrylic acid, oleic acid or butenedioic acid. Uses of modified polyvinyl acetate obtained by the method and oil-based drilling fluid containing the modified polyvinyl acetate are also disclosed.