公开(公告)号：US20210115286A1

公开(公告)日：2021-04-22

申请号：US16973996

申请日：2019-06-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Alain G. Verschuere ,  Joachim Kneer ,  Anne Van Royen

IPC: C09D127/18 ,  C09J127/18

Abstract: The present disclosure relates to a method of treating a substrate comprising an elastomeric material, wherein the method comprises the steps of: a) providing a composition comprising: i. at least one fluoropolymer which is a copolymer comprising at least 90% by weight, based on the total weight of the copolymer, of units derived from tetrafluoroethene (TFE) and from one or more perfluorinated alkyl ethers corresponding to the general formula (I): Rf1—O—(CF2)n-CF═CF2 (I) wherein n is 1 or 0 and Rf1 represents a perfluoroalkyl residue which is optionally interrupted once or more than once by an oxygen atom; and ii. at least one solvent comprising a linear, cyclic or branched, partially fluorinated (poly)ether; b) contacting at least part of the substrate with the composition of step a); c) at least partially removing the at least one solvent; and d) optionally, when the fluoropolymer is curable, subjecting the fluoropolymer to curing, wherein the curing step may be carried out simultaneously with or after step c).

公开(公告)号：US20220372193A1

公开(公告)日：2022-11-24

申请号：US17767066

申请日：2020-11-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Frans A. Audenaert ,  Klaus Hintzer ,  Alain G. Verschuere

IPC: C08F259/08 ,  C09D151/00 ,  C09D7/20 ,  C09D7/40

Abstract: Described herein is method of functionalizing fluorinated polymers, wherein a reaction compound is grafted onto a fluorinated polymer, wherein the fluorinated polymer comprises at least one Br, I, and Cl group and is free of —CH2CH2— linkages. In one embodiment, the functionalized fluorinated polymer comprises a perfluorinated polymer backbone with pendent groups therefrom is disclosed, wherein at least one pendent group is according to formula I: where Rf is a bond, or a divalent perfluorinated group, optionally comprising at least one in-chain ether linkage; Z is I, Br, or Cl; and X comprises a functional group selected from the group consisting of an alcohol; phosphorous acid and salts thereof; phosphoric acid and salts thereof; a silane; an amine; an amide; a hydrocarbon, optionally comprising an in-chain oxygen, nitrogen, or sulfur linkage; a carboxylic acid and salts thereof; an ester; a sulfonyl fluoride, a sulfonic acid and salts thereof; and combinations thereof. Such functionalized fluorinated polymers may be used in coating compositions.

公开(公告)号：US11834582B2

公开(公告)日：2023-12-05

申请号：US16973996

申请日：2019-06-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Alain G. Verschuere ,  Joachim Kneer ,  Anne Van Royen

IPC: C09D127/18 ,  C09J127/18

CPC classification number: C09D127/18 ,  C09J127/18

Abstract: The present disclosure relates to a method of treating a substrate comprising an elastomeric material, wherein the method comprises the steps of: a) providing a composition comprising: i. at least one fluoropolymer which is a copolymer comprising at least 90% by weight, based on the total weight of the copolymer, of units derived from tetrafluoroethene (TFE) and from one or more perfluorinated alkyl ethers corresponding to the general formula (I): Rf1—O—(CF2)n—CF═CF2 (I) wherein n is 1 or 0 and Rf1 represents a perfluoroalkyl residue which is optionally interrupted once or more than once by an oxygen atom; and ii. at least one solvent comprising a linear, cyclic or branched, partially fluorinated (poly)ether; b) contacting at least part of the substrate with the composition of step a); c) at least partially removing the at least one solvent; and d) optionally, when the fluoropolymer is curable, subjecting the fluoropolymer to curing, wherein the curing step may be carried out simultaneously with or after step c).

公开(公告)号：US20230139485A1

公开(公告)日：2023-05-04

申请号：US17767519

申请日：2020-12-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Frans A. Audenaert ,  Leon M. Lillie ,  Alain G. Verschuere

IPC: C09D127/22 ,  C08F8/32 ,  C08F14/18

Abstract: Described herein is method of adding a non-fluorinated carbon-carbon double bond to a highly fluorinated polymer via an amidine linkage. In one embodiment, the derivatized fluorinated polymer comprising a highly fluorinated polymer backbone with pendent groups therefrom is disclosed, wherein at least one pendent group is according to the formula: (I) where Rf is a bond or a divalent perfluorinated group, optionally comprising at least one in-chain ether linkage, R is H, an alkyl group, or —CH(R″)X; R′ is H or an alkyl group; X is a monovalent group comprising at least one non-fluorinated carbon-carbon double bond; and R″ is H or an alkyl group. Such derivatized fluorinated polymers may be used in curable compositions and articles therefrom.