# US 9,518,139 B2 · Water-absorbing elastomeric material

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- Number: US 9,518,139 B2
- Document ID: US9518139B2
- Status: Granted
- Kind: B2
- Application number: 14/127,314
- Filed: 2012-06-28
- Published: 2014-04-24
- Granted: 2016-12-13
- Earliest claimed: 2011-06-30
- Assignees: Koninklijke Philips N.V.
- Applicants: Dirk Burdinski; Joyce Van Zanten; Lucas Johannes Anna Maria Beckers; Cornelis Petrus Hendriks; Willem Franke Pasveer; Nicholaas Petrus Willard; Mareike Klee; Biju Kumar Sreedharan Nair; David W. Smith
- Inventors: Dirk Burdinski; Joyce Van Zanten; Lucas Johannes Anna Maria Beckers; Cornelis Petrus Hendriks; Willem Franke Pasveer; Nicholaas Petrus Willard; Mareike Klee; Biju Kumar Sreedharan Nair; David W. Smith
- Web page: https://patentgrep.com/patent/US9518139B2

## CPC

- C08G 77/392: containing sulfur
- C08F 228/02: by a bond to sulfur
- C08J 5/18: Manufacture of films or sheets
- C08J 9/02: using blowing gases generated by the reacting monomers or modifying agents during the preparation or modification of macromolecules
- C08L 83/08: containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C09J 143/04: Homopolymers or copolymers of monomers containing silicon
- D01F 6/28: from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08F 230/08: containing silicon
- C08G 77/12: containing silicon bound to hydrogen
- C08J 2383/08: containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H)
- D01F: CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS

## Abstract

This invention relates to a rubbery or elastomeric polymer material taking up more than 5% by weight of water and at most 500% by weight of water after immersion in demineralized water at room temperature for a sufficient time to reach saturation, comprising: (a) repeating units from one or more hydrophobic organic monomers, and (b) repeating units from one or more monomers (a) being modified with one or more hydrophilic side groups. The rubbery or elastomeric polymer material may be in the form of a sheet, a foam, a coating adapted for adhesion to a substrate, or a fiber. This invention also relates to processes, polymerizable compositions, and foaming compositions for producing such rubbery or elastomeric polymer materials.

## Claims

### Claim 1

A rubbery or elastomeric polymer material taking up more than 5% by weight of water and up to 500% by weight, of water after immersion in demineralized water at room temperature for a sufficient time to reach saturation, comprising:
(a) repeating units from one or more hydrophobic organic monomers,
(b) repeating units from one or more monomers (a) being modified with one or more hydrophilic side groups, and
(c) a ligand, wherein said hydrophilic side groups are C3-28 alkylsulfonate groups in association with a cation, and wherein said cation is a monovalent cation selected from the group consisting of ammonium and Li, Na and K cations, or a divalent cation selected from the group consisting of Ca and Mg.

### Claim 2 (depends on 1)

A rubbery or elastomeric polymer material according to claim 1, wherein said hydrophobic organic monomer (a) is selected from the group consisting of butadiene, isoprene, dialkylsiloxanes, diarylsiloxanes, acrylic acid alkyl esters, acrylonitrile, chloroprene, fluorinated ethylene, mixtures of ethylene and vinyl acetate, mixtures of ethylene and one or more acrylic acid esters, and mixtures of ethylene with propylene and a diene.

### Claim 3 (depends on 1)

A rubbery or elastomeric polymer material according to claim 1, wherein said hydrophobic organic monomer (a) is a dialkylsiloxane or a diarylsiloxane, and wherein the total number of repeating units (a) and repeating units (b) is a least 5 and less than 1,000.

### Claim 4 (depends on 1)

A rubbery or elastomeric polymer material according to claim 1, being in the form of a coating adapted for adhesion to a substrate, or being in the form of a foam with a foam density from 60 to 300 kg/m3.

### Claim 5 (depends on 1)

A rubbery or elastomeric polymer material according to claim 1, being in the form of a fiber or of a sheet.