摘要:
Water-soluble graft copolymers of acrylic acid and a watersoluble polyhydroxy polymeric compound, including water-soluble salts thereof, are useful as binders in the agglomeration of finely divided materials. The graft copolymers are especially useful as binders in the pelletization of minerals and ores, such as taconite.
摘要:
THIS INVENTION RELATES TO AN IMPROVEMENT IN THE FORMULATION OF EMULSIONS FOR TREATING OF ASPHALT PAVEMENTS AND OTHER ASPHALT-BOUND STRUCTURES, SAID EMULSIONS EMPLOYING SAPONIN AS PART OF THE SURFACTANT EMPLOYED IN SAID EMULSIONS.
摘要:
Urea is combined with a gelatinized amylaceous material using water in an amount less than 20 percent of the total mix, and the mixture is subsequently heated to obtain a binder for use in a dry wall finishing compound.
摘要:
THIS INVENTION RELATES TO THE TREATMENT OF COTTON WITH STYRENE MONOMER DISSOLVED IN AN ESSENTIALLY ANHYDROUS SOLVENT AND THEN TO THE RADIATION COPOLYMERIZATION OF THE STYRENE MONOMER WITH FIBROUS COTTON CELLULOSE AND HAS AS ITS OBJECTS MODIFICATIONS OF PHYSICAL PROPERTIES OF COTTON, PARTICULARLY IMPARTING THEMOPLASTICITY, DECREASING STIFFNESS, INCREASING ELONGATION-AT-BREAK, INCREASING RESISTANCE TO WETTING WITH WATER, AND CHANGING OTHER RELATED PROPERTIES OF COTTON FIBERS TO IMPART NEW AND DESIRABLE PROPERTIES FOR USE IN FINISHED COTTON PRODUCTS.
摘要:
A dripless, water base paint containing a latex or rubber-like binder, a pigment, an aqueous vehicle for the pigment and binder, and a small quantity of Heteropolysaccharide-7, a novel heteropolysaccharide, in an amount sufficient to give the paint pseudoplastic properties. The paint may contain a small quantity of a water-soluble alginate in addition to the novel heteropolysaccharide. Process for forming a dripless, water base paint containing a latex or rubber-like binder, a pigment, and an aqueous vehicle for the binder and pigment. The process may include the formation of a pigment grind of the pigment in water prior to the addition of the latex binder, which comprises adding a small quantity of the novel heteropolysaccharide to the pigment grind and thereafter grinding the pigment which reduces the time required to obtain optimum dispersion of the pigment.
摘要:
ELASTOMER COMPOSITIONS PREPARED BY AN IMPROVED POLYSACCHARIDE-ELASTOMER COPRECIPITATION METHOD ARE STORAGESTABLE POWDERS WHICH ARE CAPABLE OF BEING FORMED INTO VULCANIZED RUBBER ARTICLES BY INJECTION MOLDING OR OTHER SIMILAR METHODS WITHOUT PRIOR HIGH SHEAR MIXING. SUCH VULCANIZATES HAVE THE IMPROVED PROPERTIES PREVIOUSLY ASSOCIATED ONLY WITH EXTRUSION-PROCESSED POLYSACCHARIDEREINFORCED RUBBERS.
摘要:
A TEXTILE SIZING, I.E., STARCHING WHICH ALSO IMPARTS A MEASURE OF WATER AND/OR OIL-REPELLENCY CONTAINING A WATER-SOLUBLE STACH AND A FLUOROPOLYMER EMULSION DISPERSED, PREFERABLY, UNDER THE AEGIS OF NORMALLY GASEOUS PROPELLANT.
摘要:
PAPER REINFORCING AGENT COMPOSED MAINLY OF A POLYMER COMPOSITION WHICH INCLUDES A GRAFT POLYMER, A WATERSOLUBLE POLYSACCHARIDE, AND, IF NECESSARY, AN ACRYLAMIDE TYPE RANDOM COPOLYMER. THE GRAFT POLYMER IS THAT HAVING THE WATER-SOLUBLE POLYSACCHARIDE AS ITS BACKBONE POLYMER AND A COPOLYMER DERIVED FROM A MONOMER MIXTURE OF ACRYLAMIDE AND AN UNSATURATED CARBOXYKIC ACID, AS ITS BRANCH POLYMER; SAID RANDOM COPLYMER IS THAT WHICH IS DERIVED FROM THE AFORESAID MONOMER MIXTURE. THE WATER-SOLUBLE POLYSACCHARIDE CONTENT IS 5-22% BY WEIGHT BASED ON THE COMPOSITION. THE PAPER REINFORCING AGENT IS OBTAINED BY POLYMERIZING THE AFORESAID MONOMER MIXTURE IN THE PRESENCE OF THE WATER-SOLUBLE POLYSACCHRIDE, OR BY FURTHER ADDING THERETO A SUITABLE AMOUNT OF THE WATER-SOLUBLE POLYSACCHARIDE AMD/OR THE ACRYLAMIDE TYPE RANDOM COPOLYMER. THE REINFORCING AGENT EXHIBITS HIGH PAPER-REINFORCING PROPERTY EVEN IN A SMALL QUANTITY AND IS MARKEDLY CHEAPER THAN ANY OF THE KNOW ACRYLAMIDE TYPE PAPER REINFORCING AGENTS.
摘要:
IN THE CREAMING PROCESS FOR CONCENTRATING DILUTE AQUEOUS COLLOIDAL DISPERSIONS OF POLYTETRAFLUOROETHYLENE, USING A CREAMING AGENT NATURALLY-OCCURRING WATER-SOLUBLE COLLOIDS, IN THE PRESENCE AS STABILIZER OF NON-IONIC SURFACE ACTIVE AGENT TO OBTAIN A CONCENTRATED DISPERSION PHASE AND A SUPERNATANT AQUEOUS PHASE, FOLLOWED BY PHASE SEPARATION, VISCOSITY OF THE RESULTANT CONCENTRATED DISPERSION IS REDUCED, WITHOUT CONCOMITANT LOSS IN STABILITY, BY A PROCESS IMPROVEMENT WHICH COMPRISES ADDING AQUEOUS HYDROGEN PEROXIDE TO THE DISPERSIONS TO BE CREAMED IN AMOUNT OF ABOUT 2 TO 20 PARTS BY WEIGHT PER 100 PARTS OF CREAMING AGENT.