公开(公告)号：US11504740B2

公开(公告)日：2022-11-22

申请号：US16431202

申请日：2019-06-04

Applicant: AGC Inc.

Inventor： Yukiko Shiota ,  Hiroyuki Hara ,  Akira Isobe ,  Reika Fukuda

IPC: B05D5/08 ,  C09D127/14 ,  C09D133/10 ,  C08L27/12 ,  C09D201/04 ,  C09D133/04 ,  C09D5/00 ,  C08L71/00 ,  C09K3/18 ,  D06M15/256 ,  C09D123/28 ,  C09D171/00 ,  D06M15/277 ,  D06M15/53

Abstract: To provide a water/oil repellent article which presents little burden on the environment, while being excellent in water/oil repellency, washing durability of the water repellency and friction durability of the water repellency; a method for producing such a water/oil repellent article; and a water/oil repellent composition and a water/oil repellent kit to be used for producing such a water/oil repellent article. A water/oil repellent article that comprises a substrate and, as adhered to the surface of the substrate, a fluorinated polymer having structural units based on monomer (a) having a C1-6 perfluoroalkyl group, and a specific fluorinated ether compound; a method for producing the water/oil repellent article, which comprises letting the fluorinated polymer and fluorinated ether compound be adhered to the substrate; a water/oil repellent composition which comprises the fluorinated polymer and fluorinated ether compound; and a water/oil repellent kit which comprises a first container accommodating a first liquid containing the fluorinated polymer and a second container accommodating a second liquid containing the fluorinated ether compound.

公开(公告)号：US11913175B2

公开(公告)日：2024-02-27

申请号：US17474097

申请日：2021-09-14

Applicant: AGC Inc.

Inventor： Yuzuka Yoshioka ,  Motohiro Takemura ,  Hiroyuki Hara

IPC: D21H21/16 ,  C08F216/06 ,  C08F218/08 ,  D21H19/12

CPC classification number: D21H21/16 ,  C08F216/06 ,  C08F218/08 ,  D21H19/12 ,  C08F2800/10 ,  C08F2810/00

Abstract: To provide a polymer which can provide a water- and oil-proof paper with excellent water and oil resistance. A polymer comprising the following units a, and at least the following units b among the following units b and the following units c, wherein the ratio of units a to all the units in the polymer is from 28 to 70 mol %, the total ratio of units b and units c to all the units in the polymer is from 30 to 72 mol %, and the ratio of units b to the sum of units b and units c is at least 45 mol %:



units a: units represented by —(CH2—CHRf)— (wherein Rf is a C1-8 perfluoroalkyl group),
units b: units represented by —(CH2—CH(OH))—,
units c: units represented by —(CH2—CH(OC(═O)R))— (wherein R is a C1-4 alkyl group).

公开(公告)号：US20200377634A1

公开(公告)日：2020-12-03

申请号：US16994715

申请日：2020-08-17

Applicant: AGC Inc.

Inventor： Yukiko Shiota ,  Hiroyuki Hara ,  Reika Fukuda

IPC: C08F220/24 ,  C08F220/18 ,  C09K3/18 ,  C08F2/22

Abstract: To provide a method for producing a water/oil repellent composition, whereby an article which is excellent in the oil repellency while maintaining the water repellency and the heavy-rain durability, can be produced.A method for producing a water/oil repellent composition, which comprises mixing an emulsion of a polymer having from 10 to 50 mass % of units based on a monomer having a perfluoroalkyl group per all units and an emulsion of a monomer component containing at least 80 mass % of a monomer having a perfluoroalkyl group so that the proportion of the mass of the polymer will be from 50 to 99 mass % per the sum of the mass of the polymer and the total mass of the monomer component and then polymerizing the monomer component.

公开(公告)号：US10829576B2

公开(公告)日：2020-11-10

申请号：US16133839

申请日：2018-09-18

Applicant: AGC Inc.

Inventor： Junsuke Kawana ,  Motohiro Takemura ,  Eiji Morimoto ,  Hiroyuki Hara

IPC: D21H19/20 ,  C08F220/24 ,  C09D133/16 ,  D21H21/16 ,  C09D133/26 ,  D21H21/14 ,  C09D5/00 ,  C08F220/22 ,  D21H19/58 ,  C09D7/40 ,  D21H17/37

Abstract: To provide a liquid repellent composition whereby a treated article excellent in liquid repellency is obtainable, which is excellent in stability and does not have such a problem as an odor attributable to ammonia or an organic amine; a method for its production; and a method for producing oil resistant paper. The liquid repellent composition comprises a copolymer (A) having structural units derived from a monomer (a) represented by the formula RF-Q-X—C(O)C(R)═CH2 (RF is a C4-6 perfluoroalkyl group, Q is a divalent hydrocarbon group that does not contain a fluorine atom; X is —O— or NH—, and R is a hydrogen atom, a methyl group or a chlorine atom) and structural units derived from a monomer (b) having an anionic group, alkali metal ions and an aqueous medium; wherein the mass average molecular weight of the copolymer (A) is at most 84,000; at least some of counterions to the anionic groups are alkali metal ions; and the molar ratio of alkali metal ions to anionic groups in the liquid repellent composition is from 0.6 to 1.29.

公开(公告)号：US10513819B2

公开(公告)日：2019-12-24

申请号：US15714458

申请日：2017-09-25

Applicant: AGC Inc.

Inventor： Yukiko Yoshimoto ,  Hiroyuki Hara ,  Yuuichi Oomori ,  Sho Masuda

IPC: D06M15/277 ,  D06M15/295 ,  C08F220/68

Abstract: To provide a water/oil repellent composition whereby it is possible to obtain an article which is excellent in each of water-repellency, oil-repellency, washing durability, heavy rain durability and texture, a method for producing said composition, and an article which is excellent in each of water-repellency, oil-repellency, washing durability, heavy rain durability and texture. The water/oil repellent composition comprises a copolymer having units based on a monomer (a), units based on a monomer (b) and units based on a monomer (c), and a liquid medium. Monomer (a): a compound represented by (Z—Y)nX (Z: a C1-6 perfluoroalkyl group, etc.; Y: a divalent organic group, etc.; n: 1 or 2; X: a polymerizable unsaturated group). Monomer (b): a (meth)acrylate having no polyfluoroalkyl group and having an alkyl group with at least 20 carbon atoms. Monomer (c): a compound represented by CH2═CR1C(O)O—[(C2H4O)a(C4H8O)b]—H (R1: a hydrogen atom or a methyl group, and a/b=1 to 3).

公开(公告)号：US11623969B2

公开(公告)日：2023-04-11

申请号：US16994715

申请日：2020-08-17

Applicant: AGC Inc.

Inventor： Yukiko Shiota ,  Hiroyuki Hara ,  Reika Fukuda

IPC: C08F220/24 ,  C08F2/22 ,  C09K3/18 ,  C08F265/06 ,  C08F220/18

Abstract: A method for producing a water/oil repellent composition can produce an article which is excellent in the oil repellency while maintaining the water repellency and the heavy-rain durability. The method includes mixing an emulsion of a polymer having from 10 to 50 mass % of units based on a monomer having a perfluoroalkyl group per all units and an emulsion of a monomer component containing at least 80 mass % of a monomer having a perfluoroalkyl group so that the proportion of the mass of the polymer will be from 50 to 99 mass % per the sum of the mass of the polymer and the total mass of the monomer component and then polymerizing the monomer component. The monomer component includes emulsified particles in the emulsion of the monomer component. The emulsified particles have an average particle size of from 50 to 600 nm.

公开(公告)号：US11414539B2

公开(公告)日：2022-08-16

申请号：US15931697

申请日：2020-05-14

Applicant: AGC Inc.

Inventor： Hiroyuki Hara ,  Mika Sugimoto ,  Motohiro Takemura ,  Hideki Tomizawa

IPC: C08L23/28

Abstract: To provide a fluorinated copolymer dispersion, whereby it is possible to obtain an article being excellent in water-and-oil repellency and less susceptible to a decrease in the water-and-oil repellency by alkali, etc. and which presents little impact to the environment by an organic solvent; a method for its production; and an article which is excellent in water-and-oil repellency and is less susceptible to a decrease in the water-and-oil repellency by alkali, etc. The fluorinated copolymer dispersion comprises an aqueous medium and a fluorinated copolymer dispersed in the aqueous medium, wherein the fluorinated copolymer has units based on the following monomer (a) and units based on the following monomer (b), the proportion of the units based on the monomer (a) being from 20 to 60 mol % to all units constituting the fluorinated copolymer, and the fluorinated copolymer has a number average molecular weight of from 10,000 to 100,000: Monomer (a): a compound represented by CH2═CH—Rf (Rf is a C1-8 perfluoroalkyl group); and Monomer (b): a monomer copolymerizable with the monomer (a).

公开(公告)号：US20200270439A1

公开(公告)日：2020-08-27

申请号：US15931697

申请日：2020-05-14

Applicant: AGC Inc.

Inventor： Hiroyuki Hara ,  Mika Sugimoto ,  Motohiro Takemura ,  Hideki Tomizawa

IPC: C08L23/28

Abstract: To provide a fluorinated copolymer dispersion, whereby it is possible to obtain an article being excellent in water-and-oil repellency and less susceptible to a decrease in the water-and-oil repellency by alkali, etc. and which presents little impact to the environment by an organic solvent; a method for its production; and an article which is excellent in water-and-oil repellency and is less susceptible to a decrease in the water-and-oil repellency by alkali, etc. The fluorinated copolymer dispersion comprises an aqueous medium and a fluorinated copolymer dispersed in the aqueous medium, wherein the fluorinated copolymer has units based on the following monomer (a) and units based on the following monomer (b), the proportion of the units based on the monomer (a) being from 20 to 60 mol % to all units constituting the fluorinated copolymer, and the fluorinated copolymer has a number average molecular weight of from 10,000 to 100,000: Monomer (a): a compound represented by CH2═CH—Rf (Rf is a C1-8 perfluoroalkyl group); and Monomer (b): a monomer copolymerizable with the monomer (a).