公开(公告)号：US20240191013A1

公开(公告)日：2024-06-13

申请号：US18286336

申请日：2022-04-13

Applicant: KEMIRA OYJ

Inventor： Taru JOKINEN ,  Anneli LEPO ,  Yingying LIU ,  Jussi NIKKARINEN ,  Anna STANKEVICH

IPC: C08F220/18 ,  C08F2/20 ,  C08F289/00 ,  C08L3/02 ,  C08L93/04 ,  D21H17/28 ,  D21H17/62 ,  D21H19/20 ,  D21H21/16

CPC classification number: C08F220/1804 ,  C08F2/20 ,  C08F289/00 ,  C08L3/02 ,  C08L93/04 ,  D21H17/28 ,  D21H17/62 ,  D21H19/20 ,  D21H21/16 ,  C08L2201/50

Abstract: The present invention relates to a polymer dispersion, which comprises polymer particles dispersed in an aqueous continuous phase. The polymer particles are obtainable by a radical polymerisation of one or more vinyl monomers comprising alkyl (meth)acrylates. A rosin component is dissolved into at least one of the vinyl monomers before the radical polymerisation of the vinyl monomers, and the radical polymerisation is conducted in the presence of the rosin component. The invention relates also to the use of the polymer dispersion for surface sizing of a cellulosic fibre web and to a method for producing a polymer dispersion.

公开(公告)号：US11884807B2

公开(公告)日：2024-01-30

申请号：US17368176

申请日：2021-07-06

Applicant: Aquapak IP Limited

Inventor： John Williams ,  Sian Griffiths ,  Robert Ashworth

IPC: C08L29/04 ,  C08F116/06 ,  C08J3/05 ,  C08K5/098

CPC classification number: C08L29/04 ,  C08F116/06 ,  C08J3/05 ,  C08K5/098 ,  C08K2201/014 ,  C08L2201/50

Abstract: The invention describes a method for the manufacture of a plasticized polyvinyl alcohol polymer mixture including the steps of: introducing into a mixing reactor a polyvinyl alcohol polymer comprising homopolymeric polyvinyl alcohol or a blend thereof having a degree of hydrolysis in the range of 93% to less than 98% or more; where the plasticizer comprises two or more compounds selected from the group consisting of diglycerol, triglycerol, xylose, D-mannitol, triacetin, dipentaerythritol, 1,4-butanediol, 3,3-dimethyl-1,2-butanediol, and caprolactam; reacting the water, the plasticizer and the polyvinyl alcohol polymer in the reaction zone to form the plasticized polymer; and allowing the plasticized polyvinyl alcohol polymer to pass from the primary outlet.

公开(公告)号：US20230383101A1

公开(公告)日：2023-11-30

申请号：US18031650

申请日：2021-12-08

Applicant: BRIDGESTON CORPORATION

Inventor： Nao KAWAKAMI

IPC: C08L9/06 ,  C08K9/04 ,  B60C1/00

CPC classification number: C08L9/06 ,  C08K9/04 ,  B60C1/00 ,  C08L2201/52 ,  C08L2201/50 ,  C08K2201/006

Abstract: Provided are a pneumatic tire in which balance between dry steering stability and low rolling resistance is improved while excellent on-ice performance and wet grip performance are maintained, and a rubber composition from which the tire is obtained. The rubber composition contains a rubber component containing a natural rubber and a modified styrene-butadiene copolymer rubber having a glass transition temperature of −50° C. or lower, a resin, a filler containing silica having a cetyltrimethylammonium bromide specific surface area of 190 m2/g or more, and an oil component. A content of the modified styrene-butadiene copolymer rubber in the rubber component is more than 50% by mass.

公开(公告)号：US20230272204A1

公开(公告)日：2023-08-31

申请号：US18005610

申请日：2021-08-10

Applicant: ASAHI KASEI KABUSHIKI KAISHA

Inventor： Katsura TSUJIMOTO

IPC: C08L33/10 ,  B29C45/00 ,  C08K7/16

CPC classification number: C08L33/10 ,  B29C45/0001 ,  C08K7/16 ,  C08L2201/50 ,  C08L2312/00 ,  B29K2033/12

Abstract: The present disclosure is directed to providing a methacrylic resin composition and a molded article having excellent performances to allow light to be favorably transmitted and sufficiently diffused, and having good heat deformation resistance and long-term use property. A methacrylic resin composition includes 0.5 to 6 parts by mass of a light diffusing filler having an average particle diameter of 0.2 to 10 μm and 0.005 to 0.3 parts by mass of an ultraviolet absorber with respect to 100 parts by mass of a methacrylic resin, and has an intermediate point glass transition temperature of 105° C. or higher.

公开(公告)号：US20230202924A1

公开(公告)日：2023-06-29

申请号：US17922033

申请日：2020-05-05

Applicant: Wacker Chemie AG

Inventor： Hans-Peter Weitzel ,  Ulf Dietrich

IPC: C04B24/26 ,  C08L33/10 ,  C04B28/04

CPC classification number: C04B24/2641 ,  C08L33/10 ,  C04B28/04 ,  C04B24/2623 ,  C08L2201/50 ,  C04B2111/00637

Abstract: Polyvinyl alcohol-stabilized (meth)acrylic ester polymers, processes for preparing and uses for the same. Where the polyvinyl alcohol-stabilized (meth)acrylic ester polymers have particle sizes Dw of from 100 to 900 nm in the form of aqueous dispersions or water-redispersible powders. Where the (meth)acrylic ester polymers are based on



(a) 1% to 30% by weight of one or more vinyl esters of carboxylic acids having 5 to 15 carbon atoms,
(b) 20% to 80% by weight of one or more (meth)acrylic esters, wherein the homopolymer of which has a glass transition temperature Tg of ≤20° C.,
(c) 10% to 70% by weight of one or more (meth)acrylic esters, wherein the homopolymer of which has a glass transition temperature Tg of ≥50° C., and
(d) optionally one or more further ethylenically unsaturated monomers.


The percentages by weight are based on the total weight of the (meth)acrylic ester polymers.

公开(公告)号：US20230183469A1

公开(公告)日：2023-06-15

申请号：US17924263

申请日：2021-06-17

Applicant: Rohm and Haas Company ,  Dow Global Technologies LLC

Inventor： Pu Luo ,  Steven C. Brown ,  Matthew Carter ,  Liang Chen ,  Ralph C. Even ,  Junsi Gu ,  Miroslav Janco ,  Robert S. Moglia ,  Johnpeter N. Ngunjiri ,  Tanvi S. Ratani

IPC: C08L51/06 ,  C08F6/22 ,  C08F255/02 ,  C08L69/00

CPC classification number: C08L51/06 ,  C08F6/22 ,  C08F255/02 ,  C08L69/00 ,  C08L2207/53 ,  C08L2201/50

Abstract: A composite polymer composition comprising: the emulsion polymerization product of: (i) an aqueous polyolefin dispersion comprising the melt kneading product of one or more polyolefins, from 0.5 to 25 wt % of one or more dispersion stabilizing agents and water, and (ii) one or more (meth)acrylic monomers; wherein the one or more polyolefins have a Tg equal to or less than 50° C.; wherein the melt kneading product (i) comprises polymer particles having a volume average particle size between 50 nm and 2000 nm dispersed in the water; wherein the one or more dispersion stabilizing agents comprises a fatty acid or fatty acid salt stabilizing agent; and wherein the one or more (meth)acrylic monomers graft onto the polymer particles form composite polymer particles is provide. Also provided is a method of making the composition and impact modifiers comprising the composition.

公开(公告)号：US20180320007A1

公开(公告)日：2018-11-08

申请号：US15968939

申请日：2018-05-02

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： James Keith Bardman ,  Jonathan DeRocher ,  Andrew Hejl ,  Antony K. Van Dyk ,  Lin Wang ,  Kimy Yeung

IPC: C09D7/40 ,  C09D133/06 ,  C09D7/65

CPC classification number: C09D7/70 ,  C08F2/26 ,  C08F265/02 ,  C08F265/06 ,  C08L2201/50 ,  C08L2201/52 ,  C08L2207/53 ,  C09D7/65 ,  C09D7/68 ,  C09D133/06 ,  C09D133/10 ,  C09D133/12 ,  C08F2220/1825 ,  C08F220/06 ,  C08F220/14 ,  C08L51/003

Abstract: The present invention relates to a process for preparing a coatings composition with an open time additive comprising the steps of a) contacting an aqueous dispersion of alkali swellable polymer particles with a rheology modifier and a binder to form a coatings composition with a VOC of less than 50 g/L; and b) neutralizing the alkali swellable particles with a non-volatile base after or upon contact with the rheology modifier and the binder to form swelled multi-staged polymer particles; wherein the alkali swellable polymer particles comprise a shell having a Tg of not greater than 25° C. and an acid functionalized core; and wherein the core-to-shell ratio is in the range of from 1:3.2 to 1:10. The composition arising from the process of the present invention is useful for improving open time, especially for low VOC coatings applications.In another aspect the present invention relates to the preparation of the coatings composition with an open time additive comprising the steps of a) contacting the open time additive with a rheology modifier and a binder to form a coatings composition with a VOC of less than 50 g/L, then b) neutralizing the open time additive to form swelled multi-staged polymer particles, wherein the coatings composition with the open time additive exhibits less than a 50% increase in viscosity than the coating composition without the open time additive.

公开(公告)号：US20180233728A1

公开(公告)日：2018-08-16

申请号：US15750949

申请日：2016-08-18

Applicant: ZEON CORPORATION

Inventor： Yuuki OHKUBO ,  Hiromi TAKAMATSU ,  Yujiro TOYODA

IPC: H01M2/16 ,  C08F220/46 ,  C08F220/14 ,  C08F228/02 ,  C08L33/20 ,  C08L33/10 ,  C08L41/00 ,  H01M10/0525

CPC classification number: H01M2/1653 ,  C08F220/14 ,  C08F220/46 ,  C08F228/02 ,  C08F2800/00 ,  C08L33/10 ,  C08L33/20 ,  C08L41/00 ,  C08L2201/50 ,  C08L2205/025 ,  H01M2/166 ,  H01M2/1673 ,  H01M2/1686 ,  H01M4/131 ,  H01M4/366 ,  H01M4/622 ,  H01M10/0525

Abstract: Provided is a binder composition for a non-aqueous secondary battery that enables formation of a functional layer and an electrode mixed material layer having high transition metal capturing ability. The binder composition for a non-aqueous secondary battery contains a water-soluble polymer and water. The water-soluble polymer includes a sulfonate group-containing monomer unit in a proportion of at least 10 mass % and not more than 50 mass % and a (meth)acrylonitrile monomer unit in a proportion of 20 mass % or more.

公开(公告)号：US20180134080A1

公开(公告)日：2018-05-17

申请号：US15786934

申请日：2017-10-18

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Keiji IKEDA

IPC: B60C1/00 ,  C08L9/00 ,  C08L7/00

CPC classification number: B60C1/0016 ,  C08F36/06 ,  C08F36/08 ,  C08F136/06 ,  C08F2500/04 ,  C08L7/00 ,  C08L9/00 ,  C08L9/06 ,  C08L2201/50 ,  C08L2205/02 ,  C08F4/7096 ,  C08L93/00 ,  C08K3/36 ,  C08K3/04 ,  C08K5/548

Abstract: Provided are a rubber composition for treads which achieves a balanced improvement in fuel economy, abrasion resistance, and wet grip performance while offering good processability, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for treads containing: a polybutadiene; and a terpene resin having a glass transition temperature (Tg) of 40° C. to 90° C., the polybutadiene satisfying the following conditions (A), (B) and (C): (A) a ratio (Tcp/ML1+4, 100° C.) of 5% by mass toluene solution viscosity (Tcp) to Mooney viscosity (ML1+4, 100° C.) is 0.9 to 2.3; (B) a stress relaxation time (T80) is 10.0 to 40.0 seconds, which is a time required for torque to decay by 80%, where 100% represents torque at the end of a ML1+4, 100° C. measurement; and (C) a molecular weight distribution (Mw/Mn) is 2.50 to 4.00.

公开(公告)号：US20180037784A1

公开(公告)日：2018-02-08

申请号：US15532521

申请日：2015-12-02

Applicant: Arkema France

Inventor： Mario LUGLI ,  Umberto AMADEI ,  Simona FERRETTI ,  Luca RESTA ,  Leo Mario SAIJA

IPC: C09J151/04 ,  C08L51/04 ,  C09J7/02 ,  C08F253/00

CPC classification number: C09J151/04 ,  C08F2/22 ,  C08F253/00 ,  C08F279/02 ,  C08L51/04 ,  C08L2201/50 ,  C09J7/381 ,  C09J7/383 ,  C09J7/385 ,  C09J2203/30 ,  C09J2205/114 ,  C09J2407/00 ,  C09J2433/00 ,  C09J2451/00 ,  C08F220/18 ,  C08F2220/1816

Abstract: The invention relates to an aqueous polymer dispersion comprising: a) an aqueous polymer dispersion comprising grafted rubber polymeric particles from rubber polymer being selected from natural or synthetic rubber, b) an aqueous polymer dispersion with polymeric particles of a second polymer comprising monomeric units derived front a monomeric composition b) comprising: b1) a (meth)acrylate of a linear or branched alcohol in C4 to C10 or a mixture of such (meth)acrylates, said (meth)acrylate having Tgb1 lower than −30° C., b2) optionally, at least one comonomer having Tgb2 higher than −30° C., with said grafted rubber polymeric particles being grafted in an aqueous dispersion by a part of said monomeric composition b) as defined above. The invention covers a process of preparation of said dispersion, an adhesive composition comprising said dispersion, the use of said dispersion in pressure sensitive adhesives, and the resulting adhesive.