This invention relates to an adhesive suitable for water-resistant fastening of labels to bottles intended to be immersed in ice water, said adhesive comprising at least 40 percent by weight water, from about 10 percent to about 40 percent starch, from about 5 percent to about 20 percent nitrogeneous substance selected from the group consisting of urea, dicyandiamide and their mixtures, and an ammoniated hydrolysis product of a styrene/maleic anhydride copolymer in amount corresponding to from about 0.6 to about 33 parts by weight of styrene/maleic anhydride copolymer for each 100 parts of combined weight of starch, urea and dicyandiamide, with sufficient ammonia to effect a pH in the adhesive in the range of about 7.5 to about 9.2.
A cold water resistant adhesive composition is disclosed which exhibits an optimum balance of cold water resistance and removability when employed for labeling of bottles which will be used under conditions of extreme humidity. The adhesive comprises a mixture of starch, styrene-maleic anhydride resin, peptizer, water and sufficient alkali to obtain a pH of 8.0 to 11.0 with at least 20% of the alkali present in the form of a "fixed alkali".
This invention relates to aqueous adhesive solutions. More particularly, this invention relates to an aqueous adhesive composition for mechanical labeling based upon starch derivatives and having a content of flow-regulating additives and, optionally, other customary additives, which comprises: (a) at least one hydroxyalkyl ether of oxidized starch with a mean degree of substitution (MS) of .ltoreq.0.2, together with (b) at least one polymer dissolved in the aqueous phase, the polymer being selected from the group consisting of water-soluble cellulose derivatives, water-soluble synthetic polymers, casein, and water-soluble starch derivatives different from component (a).
An aqueous adhesive, resistant to humidity and water, which debonds in the presence of strong base, comprises finely divided aluminum, a natural product bonding agent and water.
This invention relates to aqueous adhesive solutions. More particularly, this invention relates to an aqueous adhesive composition for mechanical labeling based upon starch derivatives and having a content of flow-regulating additives and, optionally, other customary additives, which comprises: (a) at least one hydroxyalkyl ether of oxidized starch with a mean degree of substitution (MS) of .ltoreq.0.2, together with (b) at least one polymer dissolved in the aqueous phase, the polymer being selected from the group consisting of water-soluble cellulose derivatives, water-soluble synthetic polymers, casein, and water-soluble starch derivatives different from component (a).
Storage-stable, ice-proof, adhesives characterized by superior rheological and machining properties are prepared from an ammoniacal mixture of starch, a zinc salt of a carboxylated styrene-acrylate resin, peptizer and water.
