Abstract: Stable emulsion are made from hydrocarbon liquids, water and a water-soluble polysaccharide, plus a fatty acid alkanol amide surfactant. These emulsions are readily dispersed in water to form viscous solutions useful in the clarification of waste waters, in paper making operations and in oil service operations.

Abstract: Heat curable coating compositions particularly suitable as coatings for metal can ends are made from aqueous dispersions of epoxy resins, acrylic resins which are copolymers of polymerizable acids and other monomers, phenoxy resins, alkylated phenol novolac resins and resol resins.

Abstract: In an aqueous process for derivatizing polygalactomannan gums, the derivatized product prior to washing is reacted with a water soluble aluminum salt. The resulting products hydrate readily under alkaline pH conditions.

Abstract: The viscosity of aqueous fluids thickened with a tertiary amino polygalactomannan is reduced by the addition of an alkali metal or alkaline earth metal salt of hypochlorous acid, or a chlorinated isocyanurate.

Abstract: Stable prepolymer solutions are made from partially cyclotrimerized 4,4'-thiodi(phenylcyanate) dissolved in cyclopentanone. The prepolymer solutions are used to make flame retardant and thermally stable laminates.

Abstract: A staged mold for stabilizing hazardous wastes for final disposal by molding an agglomerate of the hazardous wastes and encapsulating the agglomerate. Three stages are employed in the process. In the first stage, a first mold body is positioned on a first mold base, a mixture of the hazardous wastes and a thermosetting plastic is loaded into the mold, the mixture is mechanically compressed, heat is applied to cure the mixture to form a rigid agglomerate, and the first mold body is removed leaving the agglomerate sitting on the first mold base. In the second stage, a clamshell second mold body is positioned around the agglomerate and the first mold base, a powdered thermoplastic resin is poured on top of the agglomerate and in the gap between the sides of the agglomerate and the second mold body, the thermoplastic is compressed, heat is applied to melt the thermoplastic, and the plastic is cooled jacketing the agglomerate on the top and sides.

Abstract: Flame retardant thermoset compositions having excellent water absorption resistance, caustic resistance, and low dielectric constants are made from blends of the dicyanate ester of 4,4'-(hexafluoroisopropylidene) bisphenol and a different polycyanate ester of a polyhydric phenol.

Abstract: A process for the reduction of free epichlorohydrin in epoxy compounds which involves the treatment of an epoxy compound with an alkali metal sulfite, preferably sodium sulfite.

Abstract: An apparatus for collecting biological fluid includes a container having an open end and a closed end; a funnel including a mouth at one end and a discharge portion at the other end, the discharge portion being removably attachable to the container to establish fluid communication between the funnel and the container; a cap for closing the container opening; a cover for the mouth of the funnel, which cover has a chamber for releasably holding the cap with the inside of the cap facing outward for engaging with the container opening; and a base having a top which includes a container recess for receiving the closed end of the container to support at least a portion of the container above the base.

Abstract: A halogen-free filled elastomer blend composition, containing at least two elastomers from the group: elastomeric ethylene-propylene copolymers and terpolymers, polyamide elastomers, elastomeric polyesters, isobutylene polymers, polyurethane elastomers, acrylic elastomers, natural rubber, polybutadiene and polyisoprene, as minor components, and a flame-retardant halogen-free inorganic filler as the major component.

Abstract: Quaternary ammonium containing monomers, represented by the formula: ##STR1## wherein R.sub.1 is H or methyl, R.sub.2 is an alkyl group containing 6 to 22 carbon atoms, D is an alkylene group containing 1 to 4 carbon atoms, or a hydroxyalkylene group containing 2 to 4 carbon atoms and X is an anion, are polymerized to form polymers useful in hair care preparations.

Abstract: Curable compositions are made from blends of polycyanate esters of polyhydric phenols and amorphous, aromatic thermoplastic resins which are initially soluble in the polycyanate ester but which phase separate during curing of the polycyanate ester.

Abstract: Alkyl ethers of polygalactomannans wherein the alkyl groups contain 1 to 4 carbon atoms are further modified with long chain aliphatic epoxides wherein the long chains contain 8 to about 28 carbon atoms. The resulting derivatized polygalactomannans are particularly useful as thickening agents for aqueous systems.

Abstract: A staged mold and method for stabilizing hazardous wastes for final disposal by molding an agglomerate of the hazardous wastes and encapsulating the agglomerate. Three stages are employed in the process. In the first stage, a first mold body is positioned on a first mold base, a mixture of the hazardous wastes and a thermosetting plastic is loaded into the mold, the mixture is mechanically compressed, heat is applied to cure the mixture to form a rigid agglomerate, and the first mold body is removed leaving the agglomerate sitting on the first mold base. In the second stage, a clamshell second mold body is positioned around the agglomerate and the first mold base, a powdered thermoplastic resin is poured on top of the agglomerate and in the gap between the sides of the agglomerate and the second mold body, the thermoplastic is compressed, heat is applied to melt the thermoplastic, and the plastic is cooled jacketing the agglomerate on the top and sides.

Abstract: Polycyanate esters of polyhydric phenols are cured with a liquid solution of a metal acetylacetonate in an alkylphenol. Such cured compositions are useful in structural composites, transfer molded-encapsulants, filmed structural adhesives and printed wiring boards.

Abstract: Low viscosity dicyanate esters are made from bisphenols wherein the bridging member between the phenyl groups is unsymmetrical. These dicyanate esters are blended with prepolymers of dicyanate esters to form low viscosity non-crystallizing resins useful in preparing composites.

Abstract: A thermoplastic pelletizable polymer composition comprising an oligomer or degraded polyolefin and an olefinic elastomer. Optionally, the composition can also include a polyolefin thermoplastic polymer. The composition, when converted to a film or fabric meets the criteria or drapability, low hardness on the Shore A scale, high melt flow and reprocessability.

Abstract: A method for the manufacture of polyester polyols is disclosed. The method comprises feeding to a reactor at least one aliphatic carboxylic acid or ester thereof, at least one secondary dihydric alcohol and at least one primary trihydric alcohol, heating the resultant admixture and removing water. When at least 95% of the water has been removed, N-phenyl dialkanolamine and additional primary trihydric alcohol are added and heating is continued. The reactants are selected so that the range of molecular weights thereof is not more than 100. A block polyester polyol is obtained. Polyurethanes obtained from the polyester polyol tend to have more uniform and superior properties. The polyurethanes may be used in variety of end uses.

Abstract: A spin welding apparatus is employed for hermetically sealing seamless overpacks. The seamless overpacks are utilized, for example, for isolating corroding 55 gallon drums which contain hazardous materials. The overpacks include a receiver which contains the 55 gallon drum and a cover which is spin welded onto the receiver. The receiver and cover have circular welding surfaces which oppose one cover which is spin welded onto the receiver. The receiver and cover have circular welding surfaces which oppose one another across a horizontal plane. The welding surfaces have a composition of heat fusible plastic. During the spin welding process, the cover is rotationally driven by the spin welding apparatus while simultaneously being forced downward onto the receiver, which is held stationary. Frictional heat melts the opposing welding surfaces. After the rotational motion stops, the opposing welding surfaces cool and solidify to form a seamless weld joint.

Abstract: A staged mold for stabilizing hazardous wastes for final disposal by molding an agglomerate of the hazardous wastes and encapsulating the agglomerate. Three stages are employed in the process. In the first stage, a first mold body is positioned on a first mold base, a mixture of the hazardous wastes and a thermosetting plastic is loaded into the mold, the mixture is mechanically compressed, heat is applied to cure the mixture to form a rigid agglomerate, and the first mold body is removed leaving the agglomerate sitting on the first mold base. In the second stage, a clamshell second mold body is positioned around the agglomerate and the first mold base, a powdered thermoplastic resin is poured on top of the agglomerate and in the gap between the sides of the agglomerate and the second mold body, the thermoplastic is compressed, heat is applied to melt the thermoplastic, and the plastic is cooled jacketing the agglomerate on the top and sides.