摘要:
A modified vegetable protein adhesive binder and a process for producing the same is disclosed wherein an alkaline protein dispersion is treated with hydroxy alkyl acrylate in an amount sufficient to modify the protein material. The modified vegetable protein adhesive binder provides greater binder strength when employed in paper coating compositions containing pigment and other materials such as latex. The modified binder also results in coatings with an improved degree of water retention.
摘要:
A modified vegetable protein adhesive binder and a process for producing the same is disclosed wherein an alkaline protein dispersion is treated with organosilane reagent in an amount sufficient to modify the protein material. The modified vegetable protein adhesive binder provides greater pigment structuring when employed in paper coating compositions containing pigment and other materials such as latex. The modified binder also results in coatings with an improved degree of wet rub resistance.
摘要:
A modified vegetable protein adhesive binder and a process for producing the same is disclosed wherein an alkaline protein dispersion is formed of a vegetable protein material and said dispersion is treated with an alkyl acrylamidoglycolate alkyl ether in an amount sufficient to modify the protein material. The modified vegetable protein adhesive binder provides greater binder strength when employed in paper coating compositions containing pigment and other materials such as latex. The modified binder also results in coatings with good ink receptivity.
摘要:
A modified vegetable protein adhesive binder and a process for producing the same is disclosed wherein an alkaline protein dispersion is formed of a vegetable protein material and said dispersion is treated with a cationic monomer, preferably a cationic monomer selected from the group consisting of cationic epoxide monomers and cationic acrylate monomers, in an amount sufficient to modify the protein material. The modified vegetable protein adhesive binder has a greater affinity for pigments in a paper coating composition. This greater pigment affinity results in an improvement in the porosity of the final coating, thereby improving ink receptivity and printability on the coating surface.
摘要:
A method of producing a paper coating composition containing a soy protein adhesive binder which is thermally sensitive or coagulates with heating is described wherein a soy protein isolate is solubilized to form a proteinaceous adhesive binder, said binder is mixed with a mineral pigment to provide a slurry having a solids level of at least about 36% by weight of the slurry, followed by control of the pH of the slurry to between about 5.7 to 6.2 and the addition of a salt selected from the group consisting of Zinc Acetate and Zinc Formate in amounts effective to cause heat coagulation of said slurry upon heating thereof. The coating is particularly used in cast coating processes, involving the application of heat to achieve uniform smoothness of the applied coating on paper.
摘要:
A paper coating composition comprising a paper coating pigment and a protein adhesive. The protein adhesive contains a protein material and a dispersing agent, in an amount effective to adjust the pH of an aqueous solution containing the paper coating composition sufficiently to substantially solubilize the protein material, comprising a basic reagent containing a divalent cation and a cation binding agent. The cation binding agent is present in an amount effective to inhibit divalent cation induced gel formation and pigment flocculation.
摘要:
A protein paper coating adhesive, and the coating composition using the protein adhesive, has increased room temperature stability and has improved whiteness. The adhesive is capable of producing high solids coatings compositions when the adhesive binder solutions are prepared either hot or cold.
摘要:
The present invention is directed to a functional food ingredient, comprising; a soy protein isolate, comprising; de-oiling hexane treated soybean flakes; heat treating the de-oiled hexane treated soybean flakes to a hexane content of below 200 parts per million at a temperature of from about 200° F. to about 210° F., wherein the soybean flakes are from high beta conglycinin soybeans; mixing the heat treated soybean flakes with water to form a slurry; removing fiber from the slurry to produce a liquor; adding an acid to the liquor to produce a precipitate of curds and a liquid of whey; separating the curds and the whey; washing the curds with water; adjusting the pH of the washed curds to about 7 and drying the pH adjusted material to produce a soy protein isolate having a beta conglycinin content of from about 35% to about 85% and a glycinin content of from about 5% to about 40%.
摘要:
An improved vegetable protein adhesive binder which can be used in paper coating compositions at much lower levels than conventional vegetable protein adhesive binders while imparting to the paper coating composition rheological and other properties equivalent to conventional paper coating compositions containing higher levels of vegetable protein adhesive binders is prepared by forming an alkaline dispersion of a vegetable protein material and a polyacrylate, mixing the polyacrylate and the vegetable protein material at a temperature and for a time sufficient to achieve entanglement of the polyacrylate with the vegetable protein material, and co-precipitating the vegetable protein material and polyacrylate at the isoelectric point of the vegetable protein. The resulting vegetable protein material which is entangled with a polyacrylate can be advantageously employed as a vegetable protein adhesive binder in a paper coating composition comprising pigments, a polymer latex, and the vegetable protein adhesive binder.
摘要:
A silicate containing adhesive is disclosed which is suitable for the production of laminated paper products comprising an aqueous solution of an alkali metal silicate together with soy polysaccharides in an amount effective to thicken the silicate solution, thereby providing a silicate adhesive which has good adhesive properties and may be used for bonding of two surfaces without excess penetration of the adhesive into either of the surfaces to be bonded.