Abstract: Scorch (the premature cross-linking of an elastomer) is a problem that is often encountered in carboxylated rubbers. Salts of certain succinic acid derivatives can be used to greatly improve the scorch resistance of carboxylated rubbers. These salts can be distributed throughout a carboxylated rubber using any procedure that will result in a thorough mixing to form a rubber composition with improved scorch resistance.

Abstract: A highly diffuse, reflective paint comprising an alcohol soluble binder, polytetrafluoroethylene (TFE) and an alcohol for coating a substrate and forming an optical reference with a superior Lambertian characteristic. A method for making the paint by first mixing the binder and alcohol, and thereafter by mixing in outgassed TFE. A wetting agent may be employed to aid the mixing process.

Abstract: Thermoplastic granules are finished by blending thermoplastic granules with additive material to form a masterblend; intensively mixing the masterblend with additional thermoplastic granules under conditions (1) to increase the temperature of the thermoplastic to its softening temperature and (2) to increase the bulk density of the granules; and withdrawing and cooling the mixture to form free flowing granules containing additives thereon or therein.

Abstract: Rotational mold grade resin is made by subjecting polyolefin to the following process: (1) polyolefin granules are blended with additives to form a masterblend; (2) the masterblend is intensively mixed with additional resin granules to shape the granules, reduce particle size and disperse additives; (3) the intermixed material is cooled and (4) large particles are removed and recycled.

Abstract: Emulsions of hydrocarbon liquids such as automotive distillate and water, or water and alcohols, are formed using an emulsifier which is a block copolymer of ethylene oxide type monomers and styrene type monomers. The stability of the emulsions is improved by the addition to the emulsion of a coupling agent which is soluble in the continuous phase of the emulsion and will couple with that portion of the emulsifier which is solvated by the continuous phase of the emulsion. Preferred coupling agents for water in oil type emulsions are copolymers of butadiene and styrene.

Abstract: The blocking characteristics of ethylene interpolymers containing --COOH groups are reduced by treating such polymers with a solution of an inorganic compound of a Group I-A metal such as trisodium phosphate and an organic compound of a Group I-A metal such as sodium acetate or a combination thereof.

Abstract: Fast-curing resin compositions for coating metal surfaces are described. They comprise a low molecular weight methylated melamine-formaldehyde resin, an epoxy resin, such as a bisphenol-epichlorohydrin resin, a silicone fluid and an organopolysiloxane release resin, with a zing-iron organometallic curing agent and a solvent. In addition to curing rapidly (one minute or less), the resin compositions are flexible and metal sheets coated therewith can be pressed or bent into various shapes and forms without the resin coating cracking or chipping.

Abstract: Carboxylic acid/hydroxyalkyl ester copolymers of about 100,000-500,000 molecular weight are solubilized and stabilized to render the aqueous solutions thereof resistant to gelation while maintaining the viscosity of the solutions at manageable levels, by partially neutralizing the copolymers. Typical copolymers contain (a) acrylic or methacrylic acid and (b) hydroxyethyl or hydroxypropyl acrylate or methacrylate, in a monomer weight ratio (a:b) of 95:5 to 50:50, and are neutralized 25-75%. The copolymers are useful as viscose dope modifiers in the production of high fluid holding rayon alloy fibers.

Abstract: Extrusion-cast films of high molecular weight, linear, low density ethylene copolymers which inherently have high block and high cling characteristics are compounded with a minor amount of a low molecular weight organic, such as a polyglycol, before being extrusion-cast as a thin film, the low molecular weight organic serving to substantially reduce the block, but retaining high cling characteristics.

Abstract: Scorch (the premature cross-linking of an elastomer) is a problem that is often encountered in carboxylated rubbers. Succinic anhydride derivatives (alkenyl succinic anhydrides, alkyl succinic anhydrides, and their corresponding dicarboxylic acids) can be used to greatly improve the scorch resistance of carboxylated rubbers. These succinic anhydride derivatives can be distributed throughout a carboxylated rubber before or after coagulation using any procedure that will result in a thorough mixing to form a rubber composition with improved scorch resistance.

Abstract: A water-soluble, pressure-sensitive, self-adhesive composition comprising a limited class of copolymers and a specific plasticizer which is completely neutralized with potassium hydroxide. The composition comprises 30 to 80 parts of a copolymer of 70 to 88% by weight acrylic acid butyl ester and 12 to 30% by weight vinyl carboxylic acid. The ester may be substituted in an amount of 3 to 12% by weight by acrylic acid-2-ethylhexyl ester and/or 5 to 25% by weight by a mixture of vinyl acetate and fumaric acid dialkyl ester. The composition also includes 20 to 70 parts by weight of a water soluble plasticizer which is ethoxylated phenol (or alkylphenol), ethoxylated alkyl mono- or diamine, or an ethoxylated alkyl ammonium compound. The composition is particularly useful for the production of adhesive tapes and similar articles useful in the papermaking industry for maintaining paper webs in continuous form.

Abstract: The present invention relates to a silicone cationic emulsion composition of a polydioganosiloxane containing amino, epoxy, and hydroxyl groups as functional groups, and which may be used as a releasing agent, stripping agent, paint component, and anti-foaming agent.

Abstract: The present invention relates to a process for forming a gel having improved creep resistance at elevated temperatures and having a viscosity of at least about 100,000 cps which includes the steps forming a solvent system of an organic liquid and a water miscible cosolvent, the water miscible cosolvent being less than about 15 wt. % of the solvent system, a viscosity of the solvent system being less than about 1000 cps; dissolving a neutralized sulfonated polymer in the solvent system to form a solution, adding a free radical generating initiator to the solution at a concentration level of about 0.01 to about 1%, a concentration of the neutralized sulfonated polymer in the solution being about 0.5 to about 20 wt. %, a viscosity of the solution being less than about 20,000 cps; and adding under shear conditions about 5 to about 500 vol.

Abstract: The present invention relates to varnishes for use in the preparation of glasscloth laminates, methods of their production and laminates made therefrom.The varnish is made by dissolving 100 parts of a TFP resin having a number average molecular weight of about 1000 and an oxygen content of about 8% in 60 to 65 parts of butan-2-one or isopropanol. 8 to 12 parts of hexamine are dissolved in a minimum quantity of a solvent comprising water and IMS in a ratio of about 3:5. The two solutions are thoroughly mixed and filtered to produce the varnish.The varnish is used to prepare glasscloth laminates for use as printed circuit boards.

Abstract: Disclosed are plastisol compositions comprising a poly(vinyl chloride) resin, a plasticizer for the resin in an amount sufficient to form a plastisol, and from about 4 to about 20% by weight, based on the weight of the composition, of a saturated, thermoplastic polyester dispersed in the plastisol, the polyester being in particulate form, having a melting point of about 70.degree. to about 200.degree. C., a heat of fusion of about 10 calories per gram or less, and an inherent viscosity of about 0.3 to about 1.0.

Abstract: The present invention relates to a cross linked resin composition, which comprises an oil being contained in cross linked polyethylene, and therefore can provide various sliding parts, which are excellent in wear-resistance heat-resistance and lubricity, such as liner of inner cable in control cable, high speed bearing or bearing sleeve.

Abstract: A process for the production of an aqueous dispersion stabilized by a water-soluble polyvinyl alcohol and based on copolymers that comprise at least 60% by weight of monomer units selected from the group consisting of esters of acrylic acid, esters of methacrylic acid, styrene, and substituted styrene and mixtures thereof, consisting essentially of subjecting a stabilized dispersion of a monomer mixture containing at least 60% by weight of monomers selected from the group consisting of esters of acrylic acid, esters of methacrylic acid, styrene, substituted styrene and mixtures thereof, said dispersion being an aqueous dispersion stabilized by a water-soluble polyvinyl alcohol, to polymerization at a temperature in excess of 60.degree. C.

Abstract: A liquid for setting dental cements is provided, in which an aqueous solution of a copolymer of acrylic and maleic acids contains a tetrahydrofurantetracarboxylic acid alone or in combination with at least one of tartaric acid, a fluorocomplex salt and a specific organic carboxylic acid. The specific organic carboxylic acid is expressed by the general formula:C.sub.m H.sub.n (COOH).sub.x (OH).sub.

Abstract: Pigment compositions prepared from a pigment, a hydroxylic solvent, and a polar polymer may be reduced in particle size by grinding in the absence of a salt to produce a pigment which may be used "as is" without any subsequent treatment.

Abstract: This invention relates to gels consisting of the reaction product of water-soluble polymers of poly(meth)acrylic acid derivatives and multivalent metal salts, in which connection such gels are characterized by the fact that they consist either of the reaction product of a W/O dispersion of the water-soluble polymers with water-soluble solutions of the metal salts, or of the reaction product of aqueous polymer solutions with W/O emulsions of the metal salts. Further, the invention relates to a process for the production of the gels, as well as their use to seal or consolidate permeable soluble materials and to form mortar type combining masses.