Claims
- 1. A carpet backing adhesive polymeric composition consisting essentially of 100 parts by weight of a vinyl acetate-ethylene copolymer emulsion, about 0.1 to 3 parts by weight dispersant, about 0.1 to 10 parts by weight thickening agent and between 400 and about 1000 parts by weight calcium carbonate, the vinyl acetate-ethylene copolymer emulsion comprising an aqueous colloidal dispersion of a copolymer containing 65 to 90 wt % vinyl acetate and 10 to 35 wt % ethylene prepared by the emulsion polymerization of the monomers in the presence of 4 to 8 wt %, based on vinyl acetate, of a stabilizing system consisting essentially of a fully (98 to 99+ mole %) hydrolyzed polyvinyl alcohol, a partially (86 to 90 mole %) hydrolyzed polyvinyl alcohol, the polyvinyl alcohols present at 3 to 5 wt % and in a weight ratio ranging from 3:1 to 1:3, and 1 to 3 wt % of an alkyl phenoxy (polyethyleneoxy) ethanol.
- 2. The adhesive polymeric composition of claim 1 in which the weight ratio of fully hydrolyzed polyvinyl alcohol to partially hydrolyzed polyvinyl alcohol is about 1:1.
- 3. The adhesive polymeric composition of claim 1 in which the copolymer contains 85 to 90 wt % vinyl acetate and 10 to 15 wt % ethylene.
- 4. The adhesive polymeric composition of claim 1 which is at least about 85% solids.
- 5. The adhesive polymeric composition of claim 1 in which the partially hydrolyzed polyvinyl alcohol is 86-88 mole % hydrolyzed.
- 6. The adhesive polymeric composition of claim 1 in which the fully and partially hydrolyzed polyvinyl alcohols have a degree of polymerization ranging from 100 to 600.
- 7. The adhesive polymeric composition of claim 1 in which the alkylphenoxy (polyethyleneoxy) ethanol is nonylphenoxy (polyethyleneoxy) ethanol.
- 8. The adhesive polymeric composition of claim 7 in which the nonylphenoxy (polyethyleneoxy) ethanol has an HLB value of about 17.2.
- 9. In a carpet backing adhesive polymeric composition comprising a vinyl acetate-ethylene copolymer emulsion, dispersant, thickening agent and calcium carbonate filler, the improvement which comprises a vinyl acetate-ethylene copolymer emulsion consisting essentially of an aqueous colloidal dispersion of a copolymer containing 85 to 90 wt % vinyl acetate and 10 to 15 wt % ethylene prepared by the emulsion polymerization of the monomers in the presence of 4 to 8 wt %, based on vinyl acetate, of a stabilizing system consisting essentially of a fully (98 to 99+ mole %) hydrolyzed polyvinyl alcohol, a partially (86 to 88 mole %) hydrolyzed polyvinyl alcohol, the polyvinyl alcohols present at 3 to 5 wt % and in a 3:1 to 1:3 weight ratio, and 1 to 3 wt % of a nonylphenoxy (polyethyleneoxy) ethanol.
- 10. The adhesive polymeric composition of claim 9 in which the weight ratio of fully hydrolyzed polyvinyl alcohol to partially hydrolyzed polyvinyl alcohol is about 1:1.
- 11. The adhesive polymeric composition of claim 9 which is at least about 85% solids.
- 12. The adhesive polymeric composition of claim 10 which is at least about 85% solids.
Parent Case Info
This is a continuation of application Ser. No. 762,097, filed Aug. 2, 1985, now abandoned.
US Referenced Citations (18)
Continuations (1)
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Number |
Date |
Country |
Parent |
762097 |
Aug 1985 |
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