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：US10370796B2

公开(公告)日：2019-08-06

申请号：US15504730

申请日：2015-08-19

Applicant: KURARAY CO., LTD. ,  AGC Inc.

Inventor： Masako Kawagoe ,  Yosuke Kumaki ,  Sho Masuda ,  Junsuke Kawana

IPC: D21H19/20 ,  B65D65/40 ,  D21H27/10 ,  D21H21/14 ,  B65D65/42 ,  D21H23/22 ,  D21H21/16 ,  D21H17/11 ,  D21H19/22

Abstract: The paper composite contains: a paper substrate having an air permeation resistance of 1,000 sec or less and bulk density of from 0.5 to 1.0 g/cm3; and a greaseproof layer on at least one side thereof, the greaseproof layer containing an ethylene-vinyl alcohol polymer (A) and a cationic fluorine-containing polymer (B) having two specific constitutional units. A content of the copolymer (B) in the greaseproof layer is from 5 to 50 parts by mass with respect to 100 parts by mass of the polymer (A), an amount of the greaseproof layer on dry mass basis is from 0.1 to 3.0 g/m2, and a water vapor permeability of the paper composite is 1,000 g/m2·24 h or greater.