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US 5,455,066 AGranted
Water-containing adhesive based on casein
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsLudwig Broich, Bernhard Herlfterkamp, Hermann Onusseit
Life of this patent
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Abstract
An adhesive based on casein, water-soluble extenders, natural or synthetic resin acids, resin alcohols or resin esters, and an alcohol is provided. The adhesive has specific amounts of these ingredients which leads to a viscosity of the adhesive which is temperature dependent to a surprisingly large extent. The adhesive is particularly useful in the labelling of bottles wherein the surface of the bottles is wet and cold.
Claims17
An adhesive composition comprising:
- a) 6 to 18% by weight of acid-precipitated casein,
- b) 1 to 10% by weight of a water-soluble extender selected from the group consisting of starch, starch ethers, guar, guar ethers, and homopolymers or copolymers of vinyl alcohol, acrylamides, acrylic acid and methacrylic acid,
- c) 1 to 50% by weight of a resin selected from the group consisting of natural or synthetic resin acids, resin acid esters and resin alcohols,
- d) 1 to 5% by weight of an alcohol containing 1 to 3 carbon atoms,
- e) a basic compound in an amount effective to adjust the pH of the composition to a value of 6 to 10,
- f) 0 to 25% by weight of a liquifying agent and
- g) 35 to 75% by weight of water,
- the percentages by weight being based on the composition as a whole.
5 more elements
A composition useful as an adhesive comprising:
- a) 6 to 10% by weight of acid-precipitated casein,
- b) 1 to 10% by weight of a water-soluble extender selected from the group consisting of starch, starch ethers, guar, guar ethers, and homopolymers or copolymers of vinyl alcohol, acrylamides, acrylic acid and methacrylic acid,
- c) 5 to 30% by weight of a resin selected from the group consisting of saponified gum rosins,
- d) 1 to 5% by weight of methanol,
- e) borax in an amount effective to adjust the pH of the composition to a value of 6 to 10,
- f) 1 to 15% by weight of a liquifying agent selected from the group consisting of urea, thiourea and dicyanodiamide, and
- g) 35 to 75% by weight of water,
- the percentages by weight being based on the composition as a whole.
5 more elements
Dependencies are inferred from the claim text.