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Ceramic tile adhesive water resistant compositions based on copolymers emulsions
| Details |
Inventors: Parker, Robert G.;
Assignee: Scott Bader Company Limited (Wollaston, GB2)
Primary Examiner: Lilling; Herbert J.
Assistant Examiner:
Attorney, Agent or Firm: Cushman, Darby & Cushman
An aqueous copolymer emulsion useful as a ceramic tile adhesive contains filler material, a zinc compound and an aqueous emulsion of a copolymer containing residues of an unsaturated aliphatic hydrocarbon monomer, an unsaturated monomer copolymerizable therewith and a small amount of residues containing carboxyl groups. |
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DETAILED DESCRIPTION I claim: 1.
A ceramic tile adhesive composition containing from 20 to 90% by weight of the total weight of the composition of at least one filler, a zinc compound and an aqueous emulsion of a copolymer containing units derived from (i) at least one unsaturated aliphatic hydrocarbon monomer, (ii) at least one unsaturated monomer copolymerizable therewith, and (iii) an effective amount up to 5% of an unsaturated monomer containing carboxylic acid groups and copolymerizable with each of the monomers (i) and (ii).
2.
An aqueous copolymer emulsion composition according to claim 1, wherein, in the said copolymer, the aliphatic hydrocarbon monomer units are selected from ethylene and butadiene.
3.
An aqueous copolymer composition according to claim 1, wherein, in the said copolymer, the units of unsaturated monomer copolymerizable with the aliphatic hydrocarbon monomer are selected from styrene and vinyl acetate.
4.
An aqueous copolymer composition according to claim 1, wherein, in the said copolymer, the residues containing carboxyl groups are derived from an unsaturated organic acid monomer selected from acrylic, methacrylic, itaconic, maleic and fumaric acids.
5.
An aqueous copolymer composition according to claim 1, wherein, in the copolymer, the units are derived from at least butadiene, styrene and an unsaturated organic acid monomer.
6.
An aqueous copolymer composition according to claim 1, wherein, in the copolymer, the said units are derived from at least ethylene, vinyl acetate and an unsaturated organic acid monomer.
7.
An aqueous copolymer composition according to claim 1, wherein the zinc compound is incorporated into the composition as an aqueous solution.
8.
An aqueous copolymer composition according to claim 1, wherein the zinc compound is selected from compounds capable of formation by reaction of zinc oxide to provide a water soluble said zinc compound therefrom.
9.
An aqueous copolymer composition according to claim 8, wherein the zinc compound is selected from zinc ammonium carbonate and zinc ammonium glycinate
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