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US 5,962,576 AGranted
Water-based adhesive
AssigneeMetallgesellschaft Aktiengesellschaft
InventorsStefan Dehnicke, Ernst List, Helmut Rullmann, Adolf Zellner
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Abstract
A water-based adhesive is disclosed which contains an aqueous dispersion of one or more phenol resins stabilized by one or more polyacrylates, one or more latexes with one or more halogenated polyolefins and one or more cross-linking agents. The invention also includes a method of priming a substrate in which the substrate is coated with the adhesive as a primer and then with a cover cement and finally bonded to rubber under vulcanization.
Claims6
A water-based adhesive free of an organic solvent, which comprises:
- (a) an aqueous dispersion of at least one phenolic resin which is a condensation product of a phenol and formaldehyde, wherein the aqueous dispersion is stabilized by at least one polyacrylate which consists of a monomer of the Formula:
- ##STR2## wherein R.sub.1 is H, CH.sub.3, C.sub.2 to C.sub.4 alkyl or aryl;
- R.sub.2 is H, OH, CN, CH.sub.3, C.sub.2 to C.sub.8 alkyl, F, Cl or Br;
- R.sub.3 and R.sub.4 are each H, CH.sub.3, C.sub.2 to C.sub.8 alkyl, aryl, O--CH.sub.3, O--C.sub.2 to C8 alkyl, or O-aryl;
- (b) a lattice formed from at least one halogenated polyolefin;
- and
- (c) at least one metal oxide as a cross linking agent.
4 more elements
Dependencies are inferred from the claim text.