公开(公告)号：US20240002565A1

公开(公告)日：2024-01-04

申请号：US18247389

申请日：2021-09-28

Applicant: KURARAY CO., LTD.

Inventor： Misuzu FUKUYAMA ,  Masaki KATO

IPC: C08F216/06 ,  C08F2/38 ,  C08F2/20 ,  C08F8/12 ,  C08F14/06

CPC classification number: C08F216/06 ,  C08F2/38 ,  C08F2/20 ,  C08F8/12 ,  C08F14/06

Abstract: A vinyl alcohol polymer including, in the same molecule or in different molecules, a carbonyl group, a formyl group, and an alkenyl group. A method for producing a vinyl alcohol polymer, including polymerizing a vinyl ester in a presence of an unsaturated aliphatic aldehyde to obtain a vinyl ester polymer, and saponifying the vinyl ester polymer.

公开(公告)号：US20230406964A1

公开(公告)日：2023-12-21

申请号：US18251593

申请日：2021-10-29

Applicant: KURARAY CO., LTD.

Inventor： Misuzu FUJIMORI ,  Masaki KATO ,  Tatsuya TANIDA

IPC: C08F2/20 ,  C08F16/06 ,  C08F14/06 ,  C08F2/38

CPC classification number: C08F2/20 ,  C08F16/06 ,  C08F14/06 ,  C08F2/38

Abstract: A dispersant for suspension polymerization may, even when a usage amount thereof is low, enable obtaining polymer particles having a small average particle diameter with few coarse particles, and having favorable plasticizer absorptivity. Such a dispersant may include a vinyl alcohol polymer having a structure of following formula (1)






and satisfy inequality (2)






0.4≤[X]×102/[Ra,1]2≤3.0  (2).

In formula (1), R is a hydrocarbon group having 4 or more carbon atoms. In inequality (2), [X] is a mole percentage content of the structure of formula (1) with respect to total structural units of the vinyl alcohol polymer; and [Ra,1] is an HSP distance ((J/cm3)1/2) between the structure of formula (1) and vinyl chloride.

公开(公告)号：US20230340172A1

公开(公告)日：2023-10-26

申请号：US18041253

申请日：2021-08-11

Applicant: KURARAY CO., LTD.

Inventor： Masaki Kato ,  Yuta Taoka ,  Yoriko Imaoka ,  Ayumu Yamamoto ,  Yasuhiro Tajima

IPC: C08F216/06 ,  C08L23/08 ,  C08F2/20 ,  C09K8/24 ,  C09K8/035 ,  C09D129/04 ,  C04B24/26

CPC classification number: C08F216/06 ,  C08L23/0861 ,  C08F2/20 ,  C09K8/24 ,  C09K8/035 ,  C09D129/04 ,  C04B24/2623 ,  C08L2201/14

Abstract: The present invention provides a vinyl alcohol polymer having properties comparable to the properties of vinyl alcohol polymers of solely petroleum origin, and, in using the vinyl alcohol polymer (PVA), saves petroleum resources, and reduces carbon dioxide emissions in production processes. The present invention relates to a vinyl alcohol polymer (X) obtained through saponification after polymerization of a plant-derived vinyl ester monomer (A) and a petroleum-derived vinyl ester monomer (B), and having a mole ratio (A)/(B) of 5/95 to 100/0.

公开(公告)号：US20180237547A1

公开(公告)日：2018-08-23

申请号：US15753649

申请日：2016-08-19

Applicant: BASF SE

Inventor： Nico VELING ,  Dirk LAWRENZ ,  Stefan WEBER ,  Peter WACHTLER

IPC: C08F2/20 ,  C08F236/10 ,  C08F220/18 ,  C08L3/02 ,  C08L9/06 ,  C08F8/04

CPC classification number: C08F2/20 ,  C08F8/04 ,  C08F220/18 ,  C08F236/10 ,  C08F251/02 ,  C08F2800/20 ,  C08L3/02 ,  C08L9/06 ,  C09D4/00 ,  C09D103/02 ,  C09D151/02 ,  C09J4/00 ,  C09J103/02 ,  C09J151/02 ,  D21H17/28 ,  D21H19/54 ,  C08F212/08 ,  C08F220/06 ,  C08F222/02 ,  C08F236/06 ,  C08F2220/1825

Abstract: The present invention refers to a process for the preparation of an aqueous polymer dispersion, an aqueous polymer dispersion obtained by the process, a binder, an adhesive, a size suitable for at least one fiber, a covering, or a paper coating slip, comprising the aqueous polymer dispersion as well as the use of the aqueous polymer dispersion for the preparation of a binder, an adhesive, a size suitable for at least one type of fiber, a paint, a covering, or a paper coating slip.

公开(公告)号：US20180118867A1

公开(公告)日：2018-05-03

申请号：US15571907

申请日：2016-05-02

Applicant: Nisshinbo Holdings Inc.

Inventor： Kazutoshi Hayakawa ,  Toshifumi Hashiba ,  Erina Matsuzaka

IPC: C08F220/14 ,  C09D133/12 ,  C09D11/107 ,  A61K8/02 ,  A61K8/81 ,  A61Q19/00 ,  C09J133/12 ,  C08F212/08 ,  C09D125/14 ,  C09D11/108 ,  C09J125/14

CPC classification number: C08F220/14 ,  A61K8/0245 ,  A61K8/8152 ,  A61Q1/02 ,  A61Q19/00 ,  C08F212/08 ,  C08F2500/24 ,  C08F2800/20 ,  C08F2810/20 ,  C08L2205/025 ,  C09D11/107 ,  C09D11/108 ,  C09D125/14 ,  C09D129/04 ,  C09D133/12 ,  C09J125/14 ,  C09J133/12 ,  G02B5/0242 ,  C08L33/12 ,  C08F2220/325 ,  C08F2/26 ,  C08F2/20 ,  C08F220/56

Abstract: Provided are elliptical, needle-shaped, or rod-shaped crosslinked polymer particles in which 5-100 mol % of all repeating units are repeating units derived from an unsaturated monomer having a functional group selected from an epoxy group, a carboxyl group, an amide group, a hydroxy group an amino group, and a thiol group, wherein (1) the average (LAV) length (L) in a two-dimensional projection diagram obtained by irradiating the particles with light from a direction orthogonal to the longitudinal direction is 0.1-80 μm, (2) the average (DAV) breadth (D) in the two-dimensional projection diagram obtained by irradiating, the particles with light from the direction orthogonal to the longitudinal direction is 0.05-40 μm, and (3) the average (PAV) aspect ratio (L/D) calculated from the length (L) and the breadth (D) is 1.5-30.

公开(公告)号：US09957407B2

公开(公告)日：2018-05-01

申请号：US14766807

申请日：2014-03-17

Applicant: BASF SE

Inventor： Andrea Kuntz ,  Karl-Heinz Schumacher ,  Christoph Kiener

IPC: C09D133/14 ,  B05D3/00 ,  C08F2/20 ,  C08F2/24 ,  C09J133/14 ,  C09J7/02

CPC classification number: C09D133/14 ,  B05D3/007 ,  C08F2/20 ,  C08F2/24 ,  C09J7/20 ,  C09J133/14 ,  C08F2220/1808 ,  C08F218/08 ,  C08F220/14 ,  C08F220/36

Abstract: A description is given of the use of a polymer dispersion for cold sealing, the polymer dispersion comprising a polymer in dispersion in water and having a glass transition temperature in the range from −20 to +10° C., said polymer being preparable by emulsion polymerization of radically polymerizable monomers in the presence of at least one polymeric protective colloid, and the polymer being formed to an extent of 0.05 to less than 1 wt % of a monomer M, selected from the group consisting of (meth)acrylate monomers having a substituent of the formula where X is CH2, O, NH or NR, and R is a C1 to C4 alkyl group. Descriptions are also given of a method for producing cold-sealed packaging, and of the packaging obtainable by said method.

公开(公告)号：US20180112118A1

公开(公告)日：2018-04-26

申请号：US15792735

申请日：2017-10-24

Applicant: Yangtze University

Inventor： Jun Wu ,  Wei-Chu Yu

IPC: C09K8/05 ,  C09K8/584 ,  C09K8/88 ,  C08F2/06 ,  C11D1/00 ,  B01F17/00

CPC classification number: C09K8/05 ,  B01F17/0035 ,  C08F2/06 ,  C08F2/20 ,  C08F2/44 ,  C09K8/18 ,  C09K8/584 ,  C09K8/68 ,  C09K8/88 ,  C09K8/882 ,  C09K2208/12 ,  C09K2208/28 ,  C11D1/004 ,  C08F220/56 ,  C08F220/06

Abstract: An oil-phase-free triple-play slick water concentration system, is characterized by first synthesizing a water-soluble dispersion polymer drag reducer A; and then preparing an inorganic salt solution B, under mechanical agitation, of high-performance water-soluble fluorocarbon surfactant and a water-soluble of high-performance small molecule or macromolecule clay stabilizer containing quaternary ammonium ions; and finally, the aqueous inorganic salt solution B is slowly added to the drag reducer dispersion A, wherein the ratio of the aqueous inorganic salt solution B and the dispersion A is 20-80:80-20.

公开(公告)号：US09944737B2

公开(公告)日：2018-04-17

申请号：US15537441

申请日：2015-12-15

Applicant: Rohm and Haas Company ,  Dow Global Technologies LLC

Inventor： Matthew D. Reichert ,  Alfred K. Schultz ,  Andrew M. Savo ,  Steven Rosenberg ,  Ralph C. Even ,  Lester H. Mcintosh, III ,  Robert Johnson ,  John David Finch ,  Decai Yu

IPC: C08F2/18 ,  C08F2/20 ,  C08F212/08

CPC classification number: C08F212/08 ,  C08F2/18 ,  C08F2/20 ,  C08F12/08 ,  C08F212/36

Abstract: Provided is a method of suspension polymerization comprising (i) providing a suspension of liquid droplets in an aqueous medium, wherein said droplets comprise (a) one or more water-insoluble vinyl monomers, and (b) a polyelectrolyte (PED) having a polarity, (c) one or more initiators, and wherein said aqueous medium comprises a polyelectrolyte (PEW) having a polarity that is opposite to the polarity of said polyelectrolyte (PED), (ii) polymerizing said vinyl monomer or allowing said vinyl monomer to polymerize.

公开(公告)号：US20170369600A1

公开(公告)日：2017-12-28

申请号：US15536735

申请日：2015-12-15

Applicant: Rohm and Haas Company ,  Dow Global Technologies LLC

Inventor： Matthew D. Reichert ,  Alfred K. Schultz ,  Andrew M. Savo ,  Steven Rosenberg ,  Ralph C. Even ,  Lester H. Mcintosh, III ,  Robert Johnson ,  John David Finch ,  Decai Yu

IPC: C08F2/20 ,  C08F212/36 ,  C08F212/08 ,  C08J3/07 ,  C08F12/08

CPC classification number: C08F2/20 ,  C08F2/18 ,  C08F12/08 ,  C08F212/08 ,  C08F212/36 ,  C08J3/07

Abstract: Provided is a suspension comprising liquid droplets dispersed in an aqueous medium, wherein said droplets comprise (a) one or more water-insoluble compounds, and (b) a vinyl polyelectrolyte (PED) having a polarity, and wherein said aqueous medium comprises a polyelectrolyte (PEW) having a polarity that is opposite to the polarity of said polyelectrolyte (PED). Also provided are a method of making such a suspension and a method using such a suspension in a process of suspension polymerization.

公开(公告)号：US20170349680A1

公开(公告)日：2017-12-07

申请号：US15533605

申请日：2015-02-11

Applicant: Qingdao Amos Resource and Technology Co., Ltd.

Inventor： Yuhai GAO ,  Xianzhen ZHUO

IPC: C08F114/06 ,  B01J4/00

CPC classification number: C08F114/06 ,  B01J4/00 ,  B01J4/001 ,  C08F2/01 ,  C08F2/20 ,  C08F14/06

Abstract: The present invention provides a production method of polyvinyl chloride by suspension polymerization and a feeding apparatus. This method comprises: Step 1: injecting a vinyl chloride monomer and water at 25-98° C. into a reaction vessel to obtain a water suspension, closing the reaction kettle, repeatedly and cyclically performing vacuum-pumping and cleansing with nitrogen, stirring and evacuating oxygen in the reaction kettle; Step 2: adding a first suspension agent and a second suspension agent into the reaction kettle, and then adding a nanopowder and an initiator composite, to carry out the polymerization reaction; Step 3: adding cold water to terminate the polymerization reaction upon the pressure in the reaction kettle is reduced to 3.5 bar or less; Step 4: evacuating and vacuumizing the reaction kettle, and then filtering, washing and drying the resulted polymer, to obtain polyvinyl chloride. The present invention also provides a feeding apparatus used for the above production method. Polyvinyl chloride produced by the method of this invention has good performance and can meet the requirements of physical and chemical properties and applicability for most applications.