Waterborne adhesives for elastomers

Patent metadata

Field	Value
Publication number	US-9328270-B2
Application number	US-98237407-A
Country	US
Kind code	B2
Filing date	Nov 1, 2007
Priority date	Nov 15, 2006
Publication date	May 3, 2016
Grant date	May 3, 2016

Abstract

There is provided a waterborne adhesive composition comprising
(a) one or more bromine substituted olefin polymer, (b) one or more halosulfonated olefin polymer, (c) one or more compatibilizer selected from the group consisting of epoxy resins, phenolic resins, chlorinated polyolefin, and mixtures thereof.

Also provided is a method of bonding substrates using such an adhesive composition, and an article formed by such a method of bonding substrates.

First claim

We claim:

1. A waterborne adhesive composition comprising:
(a) one or more bromine substituted olefin polymer;
(b) one or more halosulfonated olefin polymer; and
(c) one or more compatibilizer that comprises one or more epoxy resin;

wherein the ratio of the dry weight of said compatibilizer to the sum of the dry weights of said polymer (a) and said polymer (b) is 0.1 or higher;
wherein said one or more epoxy resin has an epoxy value of 3 equivalents per kilogram or higher;
wherein said adhesive composition was made by a process comprising:
A. forming a solution in organic solvent comprising:
(i) said one or more bromine substituted olefin polymer;
(ii) said one or more halosulfonated olefin polymer; and
(iii) said one or more epoxy resin;

B. added water to said solution to form an oil in water emulsion; and
C. removing said solvent.

2. The adhesive composition of claim 1 , wherein said every bromine substituted olefin polymer in said composition is a substituted diene polymer in which there are no monomer units that are not residues of diene molecules.

3. The adhesive composition of claim 1 , wherein said bromine substituted olefin polymer comprises at least one mixed-halogen substituted olefin polymer.

4. The adhesive composition of claim 1 , wherein said halosulfonated olefin polymer comprises chlorosulfonated polyethylene.

5. The composition of claim 1 , wherein said composition additionally comprises polyvinyl alcohol, and wherein said solution in organic solvent additionally comprises polyvinyl alcohol.

6. The composition of claim 1 wherein said step B is performed under high shear.

7. The composition of claim 1 wherein said organic solvent is xylene.

8. A method of bonding substrates, said method comprising
(i) applying one or more layer of the adhesive composition of claim 1 to a first substrate, optionally after applying a primer to said first substrate,
(ii) drying said layer of said adhesive composition, and
(iii) contacting at least one additional substrate to said layer of said adhesive composition,
wherein one or both of said first substrate and said additional substrate is an elastomer.

9. An article formed by the method of claim 8 .

Assignees

• Hoy Dean Edward
• Weir James Patrick
• Rohm & Haas

Inventors

• Hoy Dean Edward
• Weir James Patrick

Classifications

• C08L15/02

  Rubber derivatives containing halogen · CPC title

• C08L63/04

  Epoxynovolacs · CPC title

• C09J9/00

  Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks (C09J7/00 takes precedence) · CPC title

• C09J123/28 Primary

  by reaction with halogens or compounds containing halogen (C09J123/32 takes precedence) · CPC title

• C08L23/34

  by chlorosulfonation · CPC title