Abstract: A pressure sensitive adhesive is formed from a composition comprising mono-functional unsaturated acrylate ester monomer, essentially saturated tackifying resin polymer dissolved in the acrylate ester, non-crystallizing elastomeric material also dissolved in the acrylate ester, and an initiator responsive to ultraviolet light or other penetrating radiation such as electron beam, gamma or X-ray radiation. The composition is cured by subjection to ultraviolet light or other radiation, which causes the initiator to induce polymerization of both the acrylate ester and the non-crystallizing elastomeric material, apparently with co-polymerization therebetween.

Abstract: A method of binding floor dust and other particles in building rooms, corridors etc. by means of floor mats, where initially a number of test mats are placed on the floor, these mats being clean and white and apart from the color being of a material corresponding to utility mats of the dust binding type, i.e. rubber backed mats of a soft moisture absorbing material which is impregnated to be able to bind considerable amounts of dust, whereby after a suitable test period of time the miscoloring of the mats is inspected and it is decided, based on the geographic occurrence of the most dirty sub areas, where operational service or utility mats should be placed on the floor for maximum dust collection in selected sub areas only.

Abstract: A composite beta, mainly beta"-alumina article is described which comprises a first layer of beta-alumina, a second layer of mainly beta"-alumina adhering securely to the first layer, and the first layer consisting of 1 to 15 percent thickness of the total thickness of the article. A method is also described for producing such composite articles.

Abstract: A sound barrier material for a road or a trainway comprised of a barium sulfate loaded chlorinated polyethylene laminated to each side of a foraminous metal member with a coating of about 0.05 to 8.13 centimeters in gauge.

Abstract: The present invention relates to bonding a coating of polyarylene sulphide, for example polyphenylene sulphide, to a steel backing by the use of a ceramic or other non-metallic inter-layer or bonding layer. In some cases the bonding layer comprises a layer of fine particles bonded to the backing followed by a layer of coarser particles to which the coating can be more effectively bonded. This results on a coated steel backing capable of being deformed without the coating becoming detached. Such a coated backing is suitable for use as a bearing material, a chemically resistant material or as cookware.

Abstract: In order to prevent a protective carbide layer on a graphitic molded arti from splitting off under thermal stress, an external carbide layer is provided on a graphitic molded article having a graded content of silicon or zirconium (in the carbide state) that increases from near zero at the interior boundary of the layer to about 50 atomic percent at the exterior. Such a layer is produced either by dipping the graphitic molded article into melted silicon, dipping it into a succession of suspensions of carbon and either silicon or zirconium, with a greater silicon or zirconium content in each successive dip, the suspensions also including a binder resin, or by applying layers of a paste of carbon and either silicon or zirconium, also with some resin, each successive layer having a higher silicon or zirconium content.

Abstract: In order to prevent a protective carbide layer on a graphitic molded article from splitting off under thermal stress, an external carbide layer is provided on a graphitic molded article having a graded content of silicon or zirconium (in the carbide state) that increases from near zero at the interior boundary of the layer to about 50 atomic percent at the exterior. Such a layer is produced either by dipping the graphitic molded article into melted silicon, dipping it into a succession of suspensions of carbon and either silicon or zirconium, with a greater silicon or zirconium content in each successive dip, the suspensions also including a binder resin, or by applying layers of a paste of carbon and either silicon or zirconium, also with some resin, each successive layer having a higher silicon or zirconium content.

Abstract: Lined articles having an outer plastic layer of transparent or translucent plastic and a decorated inner plastic layer so that the decoration is visible through the outer layer. The article is prepared by decorating a plastic liner and molding a transparent or translucent plastic around the decorated liner.

Abstract: A laminated packaging material having high impermeability to gases and high workability is prepared by the lamination of a layer of copolymer of vinylidene chloride containing 3-10% by weight of a plasticizer of a number average molecular weight of less than 500 with another layer of a synthetic resin containing 5-70% by weight of at least one organic additive of a number average molecular weight of about 800-10,000 and selected from the group consisting of glycerides of higher saturated or unsaturated fatty acids and of epoxidized fatty acids, rosin and rosin derivatives, oligomeric copolymers of styrene with isobutylene, butadiene or isoprene, oligomeric polyesters which are formed by polycondensation of aliphatic dicarboxylic acid with 6-10 carbon atoms and polyhydric alcohol with 2-6 carbon atoms and have a number average molecular weight of 1,000-2,000, and oligomeric epoxides formed by polycondensation between epichlorhydrin and bisphenol.