Abstract: Rubber, hydrocarbons, i.e., resins, and other useful by-products are extracted from shrubs such as guayule and guayule-like shrubs by a procedure wherein the shrub, after being comminuted, is processed in an aqueous and/or a non-aqueous system. An optional water treatment step can be used to remove water solubles and/or facilitate processing and achieve increased yield of desired by-products.

Abstract: This invention relates to amine terminated polyalkylene oxide neutralized sulfonated thermoplastic polymers which have useful physical and rheological properties.

Abstract: An aqueous dispersion of improved stability, said dispersion consisting essentially of a mixture of(A) 10 to 90% by weight of an ethylene/.alpha.,.beta.-unsaturated carboxylic acid copolymer containing 12 to 20% by weight on an average of .alpha.,.beta.-unsaturated carboxylic acid units or the metal salt thereof, and(B) 90 to 10% by weight of an ethylene/.alpha.,.beta.-unsaturated carboxylic acid copolymer containing 5 to 12% by weight on an average of .alpha.,.beta.-unsaturated carboxylic acid units or the metal salt thereof,said mixture containing 8 to 20% by weight on an average, based on the weight of the mixture, of the .alpha.,.beta.-unsaturated carboxylic acid units, 30 to 80% of which units are present in the form of metal salts, and said mixture not containing more than 5% by weight, based on the weight of the mixture, of a fraction of the ethylene/.alpha.,.beta.-unsaturated carboxylic acid having an .alpha.,.beta.

Abstract: A method for separating out carbon particles from a composition comprising a plastic and carbon particles of submicron dimensions comprising the steps of adding the composition to an organic solvent for the plastic which does not dissolve the carbon particles at a concentration sufficiently dilute to allow the carbon particles to be free from the plastic and filtering the resulting mixture in a calcium carbonate column which traps essentially all of the carbon particles.

Abstract: A process is provided for reducing the concentration of vinyl chloride monomer in a polymerized slurry obtained by the suspension-polymerization of vinyl chloride alone or a mixture of vinyl chloride with a monomer copolymerizable therewith, the improvement characterized in that a polymerized slurry at a temperature between 40.degree. C. and 100.degree. C. is jetted and/or flowed down into the gas phase portion of a vessel maintained at a pressure below atmospheric pressure.

Abstract: By block-copolymerizing a mixture of an aromatic vinyl compound and a conjugated diene in two stages in an aliphatic hydrocarbon solvent, using an organomonolithium compound or an organodilithium compound as a polymerization initiator, a block copolymer is formed as a suspension polymer in a slurry state.The resulting block copolymer is very clear and excellent in mechanical properties, especially, strength, elongation and impact strength. It has a wide application in the field of general resins.

Abstract: Production of polymers in bead form by forming a water-in-oil suspension of an aqueous solution containing at least one water-soluble ethylenically unsaturated monomer in an inert hydrophobic liquid organic dispersion medium and polymerizing the suspended monomer in the presence of a polymerization initiator and a protective colloid obtained by polymerizing (A) 60 to 100% by weight of at least one monomer selected from the group consisting of cyclopentadiene, dicyclopentadiene, tricyclopentadiene and alkyl-substituted derivatives thereof, and (B) 0 to 40% by weight, based on the mixture of (A) and (B), of a mono- or diethylenically unsaturated monomer copolymerizable with (A).

Abstract: Polymer dispersions are subject to a spray treatment to reduce the monomer content thereof. The dispersions are sprayed against the wall of the vessel by means of at least one spray nozzle.The residual monomer content of polymer dispersions is further reduced by spraying them in at least two series connected vessels, conducting the escaping gaseous constituents in one direction and the dispersion in opposite direction from one vessel to the next. The process is little liable to troubles and ensures a very effective monomer removal without thermal damage of the polymer.

Abstract: Amide and imide age resistors such as N-(3,5-di tert.butyl-4-hydroxyphenyl) acrylamide and N-(3,5-di tert.butyl-4-hydroxyphenyl) itaconimide, age resistant polymers having amide and imide age resistors physically combined therewith and age resistant polymeric compositions prepared by free radical polymerization techniques involving the use of said amides and imides as monomers.