Abstract: A hot melt ink composition containing a an alkylene distearate which improves the color strength of the ink and is formed as a reaction product of a C4-C8 diol and at least one acid selected from the group consisting of a C16-C18 monofunctional acid and a C9-C10 difunctional acid.

Abstract: The present invention relates an improved silicone modified water-based emulsion used primarily for publication gravure ink. Publication gravure water-based ink produced with the new polymer exhibits superior paper holdout, smoother lay, and higher gloss on super calendered and uncoated paper substrates as compared to conventional water-based gravure inks.

Abstract: A hot melt ink composition containing a an alkylene distearate which improves the color strength of the ink and is formed as a reaction product of a C4-C8 diol and at least one acid selected from the group consisting of a C16-C18 monofunctional acid and a C9-C10 difunctional acid.

Abstract: A method for the production of an improved water soluble resin binder for laminating printing inks has been discovered. The method comprises esterifying the carboxylated Diels Alder adduct produced from the reaction of rosin and at least one carboxylated dienophile with a sufficient amount of at least one polyol to produce a modified rosin having an acid number greater than 157. The modified rosin is reacted with a sufficient amount of an acrylic copolymer having an acid number greater than 180 under esterification conditions between 175 ° C. and 185 ° C. for a time sufficient to produce a resin binder having an acid number greater than 157. A laminating ink formulation of the invention comprises water, pigment, styrene-acrylic varnish, shellac varnish, alkanol and the improved water soluble resin binder of the invention as described above.

Abstract: A method for the production of an improved water soluble resin binder for laminating printing inks has been discovered. The method comprises esterifying the carboxylated Diels Alder adduct produced from the reaction of rosin and at least one carboxylated dienophile with a sufficient amount of at least one polyol to produce-a modified rosin having an acid number greater than 157. The modified rosin is reacted with a sufficient amount of an acrylic copolymer having an acid number greater than 180 under esterification conditions between 175.degree. C. and 185.degree. C. for a time sufficient to produce a resin binder having an acid number greater than 157. A laminating ink formulation of the invention comprises water, pigment, styrene-acrylic varnish, shellac varnish, alkanol and the improved water soluble resin binder of the invention as described above.

Abstract: A heat-sealable adhesive for dissimilar substrates is disclosed comprising an organic solvent suspension of a graft copolymer of an A-B-A terblock copolymeric rubber, olefin copolymer and olefin terpolymer. Processing conditions are improved over known adhesive preparation conditions.

Abstract: A method for the production of an improved water soluble resin binder for laminating printing inks has been discovered. The method comprises esterifying the carboxylated Diels Alder adduct produced from the reaction of rosin and at least one carboxylated dienophile with a sufficient amount of at least one polyol to produce a modified rosin having an acid number greater than 157. The modified rosin is reacted with a sufficient amount of an acrylic copolymer having an acid number greater than 180 under esterification conditions between 175.degree. C. and 185.degree. C. for a time sufficient to produce a resin binder having an acid number greater than 157. A laminating ink formulation of the invention comprises water, pigment, styrene-acrylic varnish, shellac varnish, alkanol and the improved water soluble resin binder of the invention as described above.

Abstract: An improved flexible packaging ink comprising a polyamide resin prepared by condensing a dibasic acid mixture with a diamine mixture, a pigment, nitrocellulose and a solvent, wherein the improvement comprises, a polyamide resin containing a monobasic acid and adding a dimerized rosin.

Abstract: An aqueous cold seal release varnish comprising the reaction product of a mixture comprising 30-50 parts of a polyamide block copolymer having an acid value of 30-45, 1-5 parts of an amide wax, 10-20 parts of at least one C.sub.1 -C.sub.4 alkanol, 5-10 parts of an amine and 15-55 parts of water. The mixture is dissolved by heating at a temperature of 75.degree.-85.degree. C. for a period of time of not more than 90 minutes to produce a varnish. An aqueous cold seal release lacquer (CSRL) is prepared from the varnish by mixing with a C.sub.1 -C.sub.4 alkanol, water and a surfactant.

Abstract: A thermosetting printing ink composition comprising a functional copolymer of a thermosettable polyester and a polysiloxane, a pigment, a crosslinking agent and a curing catalyst which may be a strong acid or a metal salt thereof. The composition desirably also includes a reactive diluent such as a glycol, glycol ether or alcohol. The compositions are especially useful for imprinting metal containers such as beer and soda cans.

Abstract: A flexible packaging printing ink is formulated from a copolymer of polyethyleneneglycol methacrylate and a polyamide resin, pigment, solvent and cellulose acetate butyrate. The polyamide resin is prepared by condensing a dibasic acid mixture with a diamine mixture. The dibasic acid mixture comprises about 0.5 to 0.8 equivalents of a C.sub.20 -C.sub.44 dibasic acid mixture comprised of about 60 to 100% dimers, 0 to 40% trimers and 0 to 5% monomers, and about 0.2-0.7 equivalents of at least one C.sub.6 -C.sub.12 dibasic acid such as azelaic acid and adipic acid, while the diamine mixture comprises about 0.5-0.8 equivalents of piperazine or a substituted piperazine and the balance comprises at least one C.sub.2 -C.sub.12 alkyl diamine such as ethylene diamine.

Abstract: Novel graft copolymers of shellac and a polyalkyleneglycol monomethacrylate are prepared. These graft copolymers are useful in preparing water-based flexographic, i.e. packaging laminating inks, comprised of a pigment; the graft copolymer; a binder resin; an alkanol; an alkali, ammonia or an amine; and water.

Abstract: A carboxy acid-terminated polyamide is reacted with an alkylene glycol, a polyalkylene glycol, nitrogen base or an alkanol amine (followed by an alkanoic acid) to provide a block copolymer. These block copolymers are especially useful as pigment dispersants, i.e. for preparing solvent-based packaging inks (i.e. packaging gravure and flexographic inks).

Abstract: A water-dispersible graft copolymer of a polyamide and at least one acrylic monomer is prepared by reacting the polyamide with the acrylic monomer(s) in an alcohol solution in the presence of a free radical peroxidic initiator. The graft copolymer is particularly useful as the resin component of a water-based printing ink.

Abstract: A water-dispersible graft copolymer of a polyamide and at least one acrylic monomer is prepared by reacting the polyamide with the acrylic monomer(s) in an alcohol solution in the presence of a free radical peroxidic initiator. The graft copolymer is particularly useful as the resin component of a water-based printing ink.