Abstract: A resin composition for soft bumpers is disclosed, comprising (a) 100 parts by weight of a selectively hydrogenated block copolymer having at least two mono-alkenyl or mono-alkenylidene aromatic hydrocarbon polymer blocks having a number average molecular weight of from 5,000 to 15,000 and at least one partially or completely hydrogenated aliphatic conjugated diene hydrocarbon polymer block having a number average molecular weight of from 10,000 to 75,000, (b) from 10 to 100 parts by weight of an ethylene-propylene copolymer rubber having a Mooney viscosity of from 15 to 50 as measured at 100.degree. C. and an intrinsic viscosity of from 1.2 to 2.0 dl/g as measured in a xylene solution at 70.degree. C., (c) from 200 to 400 parts by weight of a propylene-ethylene block copolymer having a melt flow rate of from 10 to 30 g/10 min and an ethylene content of from 5 to 15% by weight, and (d) from 20 to 200 parts by weight of a non-aromatic diluent oil for rubber.

Abstract: A soft contact lens is provided by: pouring an excess amount of an original solution for producing a soft contact lens into a concave mold; placing a convex mold on said concave mold and overflowing the excess of said original solution to thereby uniformly fill said original solution in a space between said concave mold and said convex mold; gelling said original solution between the two molds to form therebetween a lens having a tensile strength of at least about 0.1 kgf/cm.sup.2 ; immersing said lens and said two molds in a liquid to peel said lens from said molds; and extracting the thus-peeled lens via an extraction treatment with water.

Abstract: A polyester being liquid at 25.degree. C. comprises a polybasic acid and a polyhydric alcohol as its monomer constituents, wherein the polyhydric alcohol is composed at least partially of 1,2-butanediol.

Abstract: Hot melt adhesive compositions prepared from styrene-isoprene-styrene block copolymers, a low softening point highly aliphatic resin and a metallic salt of a fatty acid exhibit a superior balance of properties in that they adhere well to a variety of substrates yet can be readily and cleanly removed when desired.

Abstract: A polymerization process, especially a solution polymerization process, for the preparation of high molecular weight polymers of alpha-olefins less susceptible to yellowness is disclosed. The process comprises feeding monomer(s), coordination catalyst and optionally inert hydrocarbon solvent to a reactor, polymerizing the monomers at a temperature of up to 320.degree. C. and deactivating the catalyst. An organozirconium compound is admixed with the polymer thus obtained. The organozirconium compound is of the formula ZrO.sub.m (OCOR').sub.n (OR").sub.p-n where R' and R" are independently selected from the group consisting of alkyl and cycloalkyl having 1-20 carbon atoms, and m =0 or 1, provided that when m=0, p is 4 and n is 0-4, and when m=1, p is 2 and n=0-2. Any hydrocarbon solvent and other volatile matter are then separated and a composition comprising said high molecular weight polymer is recovered.

Abstract: Compositions, including hydrocarbon elastomeric block copolymers, such as styrene-ethylene-butylene-styrene and styrene-butadiene-styrene with mineral oil and essentially linear (i.e. non-cross-linked) polysiloxanes are made transparent by using polysiloxanes which are miscible with mineral oil. A preferred polysiloxane is polymethyloctyl siloxane. Transparent films, bags, tubes and other articles, especially useful in medical applications, such as catheters, blood tubes and blood bags, can be processed from the compositions.

Abstract: Treatment of aqueous suspensions of vinyl chloride polymers containing vinyl chloride monomer so as to inhibit wet-foaming therein, by adding a glyceride of an optionally substituted saturated or unsaturated carboxylic acid containing 6 to 20 carbon atoms (e.g. glycerol monoricinoleate). Solid-foaming can also be inhibited by adding a wetting agent (such as partially hydrolysed polyvinyl acetate PVA) and a preferred formulation for effecting the treatment comprises an aqueous emulsion of the glyceride having PVA as the emulsion stabilizer.

Abstract: The processing of elastomer gums, which can be natural rubber or synthetic elastomers such as copolymers of vinylidene fluoride and hexafluoropropylene, are improved by incorporating in said gum, along with conventional chemical and compounding ingredients, cyanuric acid or isocyanurate or cyanurate derivatives thereof to improve the processing of such gums, for example, to improve the extrudability thereof or the release of molded articles thereof from the mold.

Abstract: An aqueous composition for the protection of paint surfaces comprises [A] a solid emulsion component composed of (a) an oxygen-containing wax, (b) a polybutene and (c) a silicone oil; [B] a powdery emulsion component composed of (d) substantially white-colored fine powder of a silicon-containing inorganic material and (e) white-colored fine powder of a silicon-free inorganic or organic material; and [C] an emulsifier component.

Abstract: Specimen containers, such as containers for urine specimens, are produced in a manner which assures not only against spillage of the specimen but also against possible confusion as to the source of the specimen.

Abstract: A composition for the application of coatings on a substrate having a base of acrylic resin, comprising polymethylmethacrylate dissolved in a solvent composed of at least one ketone selected from methylethylketone and diacetone alcohol and of a chlorinated hydrocarbon selected from trichloroethylene and methylene chloride, the ratio of the volume of chlorinated hydrocarbon to the volume of ketone being at least 20 to 80.

Abstract: A material intended to form a joint between at least two bodies on the outside of their interface, at least one of the bodies being deformable, is characterized by the following features:(a) it is formed of a fluid mixture having a viscosity, measured at normal temperature, of from 0.3 Pa.s to 700 Pa.s;(b) a dry extract of the fluid mixture, measured at normal temperature and pressure, is from 20% by weight to 80% by weight, based on the weight of the fluid mixture;(c) the dry extract of the fluid mixture comprises an elastomer fraction at least 20% by weight of which elastomer fraction is formed of at least one unsaturated elastomer capable of cross-linking either at ambient temperature or by heating for a period of time of less than one minute.Methods for producing assemblies with this material, consisting, for instance, of manufacturing, repairing or recapping a tire.Assemblies obtained by these methods.

Abstract: A crosslinkable composition comprising a silyl modified ethylene (co)polymer, a defined phosphorus or antimony compound and optionally a silanol condensation catalyst. The silyl modified polymer has hydrolysable silane groups introduced therein by copolymerization grafting or transesterification. The phosphorus or antimony compound (e.g. tributyl phosphite) reduces premature crosslinking during extrusion of the composition.

Abstract: A process for producing a copper(II) hydroxide phosphate having the Cu.sub.3 (PO.sub.4).sub.2.Cu(OH).sub.2 composition and having a light natural color and an average grain size less than 10 microns. Basic copper carbonate of a bulk density less than 800 grams per liter is treated in an aqueous dispersion with phosphoric acid at temperatures less than 70.degree. C. and the reaction mixture is then mechanically agitated further within the same temperature range.The copper phosphate so obtained is applicable as a smoke-reducing additive in polyvinyl or molding materials containing the same.

Abstract: Polyesters containing significant amounts of dicyclopentadiene are produced and used in emulsion form. Superior physical properties, including low linear shrinkage, are obtained.

Abstract: According to the present invention, novel pyromellitate plasticizers are provided which comprise members selected from the group consisting of compounds of the formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are the same or different and comprise members selected from the group consisting of iso-nonyl and iso-decyl groups.

Abstract: Certain polyurea-modified polyether urethanes of polyisocyanates, polyethers and polyamines are suitable as heat sensitizing agents for latices.

Abstract: A primer coating composition, particularly for use with polyvinylidene fluoride topcoating comprising an aqueous acid coating composition having phosphate ions and ions of the group of chromate ions or molybdate ions, and particulate of polyvinylidene fluoride.

Abstract: Terpolymers of anhydrides, aromatic mono-alkenyl monomers and higher 1-alkenes are prepared. Aqueous dispersions of these terpolymers are also prepared.

Abstract: A wear-resistant phosphorescent material consisting of a mixture of a selected ratio of phosphorescent pigment and bleached aluminum oxide as carried by a catalyst-hardened epoxy resin, such phosphorescent material being placeable in selected array on a tread plates or other tread surface.