摘要:
A water-disintegrable resin film, characterized in that it exhibits a tensile strength of 2 N/25 mm width or more after the surface thereof is pressed by a cotton gauze impregnated with water of 40null C. with a pressure of 1.47 N/cm2 for 5 hours under a condition wherein the temperature is 40null C. and the relative humidity is 90%, and exhibits a start time for the disintegration thereof by water, which means the time needed until it starts to lose its form, of 600 seconds or less, in a test nearly according to JIS P 4501 for the capability of being united. The water-disintegrable resin film has a predetermined mechanical strength under a wet and warm or hot condition and also exhibits excellent disintegradability for a large amount of water, and thus can be suitably used as a back sheet of a liner for sanitary goods, which requires the combination of good water resistance and good water-disintegradability.
摘要:
An extended life fluorescent polyvinyl chloride sheeting and a method for forming the sheeting are disclosed. The sheeting includes a polyvinyl chloride film having a fluorescent colorant incorporated therein. A protective polymer layer is attached to the polyvinyl chloride film. A light filtering agent is incorporated into the protective layer, wherein the filter agent blocks the 425 nm and lower wavelengths of the visible spectrum.
摘要:
A multi-layered article comprising a first layer of a thermoset polyurethane. A second layer of a polymeric composition is bonded to the first layer. The polyurethane has available isocyanate groups prior to the application of the second layer. The second layer is applied onto the first layer in a pre-polymeric or polymeric state wherein the material has carboxyl groups and a cross-linking agent.
摘要:
A composite of a resin member bonded to a vulcanized rubber member is obtained with using a rubber member vulcanized with a radical-generating agent (e.g., an organic peroxide) and a thermoplastic resin having at least 2 atoms, on average, selected from H and S atom per molecule, each atom having not less than 0.006 of an orbital interaction energy coefficient S represented by the following formula (1): Snull(CHOMO,n)2/nullEcnullEHOMO,nnullnull(CLUMO,n)2/nullEcnullELUMO,nnullnullnull(1) wherein Ec: an orbital energy (eV) of a radical, CHOMO,n: a molecular-orbital coefficient of a highest occupied molecular orbital (HOMO) of an n-th H or S atom constituting a basic unit of the resin, EHOMO,n: an orbital energy (eV) of the HOMO, CLUMO,n: a molecular-orbital coefficient of a lowest unoccupied molecular orbital (LUMO) of the n-th H or S atom constituting the basic unit of the resin, ELUMO,n: an orbital energy (eV) of the LUMO, and above all represent a value calculated by a semiempirical molecular orbital method MOPACPM3. The thermoplastic resin includes a polyamide, a polyester, a PPE, a POM, a PPS, a polyolefinic resins, and the unvulcanized rubber may comprise a vulcanization-activating having plural polymerizable unsaturated bonds. The invention gives the composite of the resin bonded directly to the rubber firmly without adhesives in wide combinations of the resin and the rubber.
摘要:
An extended life fluorescent polyvinyl chloride sheeting and a method for forming the sheeting are disclosed. The sheeting includes a polyvinyl chloride film having a fluorescent colorant incorporated therein. A protective polymer layer is attached to the polyvinyl chloride film. A light filtering agent is incorporated into the protective layer, wherein the filter agent blocks the 425 nm and lower wavelengths of the visible spectrum.
摘要:
A dry-strippable coating composition can be incorporated into a composite article and comprises a dried water-borne polyurethane dispersion including a release additive comprising a releasing co-solvent or other selected release material. When water is removed from the polyurethane dispersion of the composite article and when the article comprises a thermoformable substrate, the article can be thermoformed to provide a shaped article. Dry-stripping the coating composition from the substrate provides a thermoformed substrate and a thermoformed protective layer. The dry-strippable coatings provide temporary protection for the surface of various products and components during manufacture, assembly, shipping, installation, painting, and refinishing operations.
摘要:
An adhesive prepared by blending a hardening resin serving as the main component with an urethane resin having a polycarbonate structure. The addition of the urethane resin with the polycarbonate structure makes it possible to give an adhesive which has a high solvent resistance and a good low temperature impact resistance and achieves good adhesion between vinyl chloride and a steel plate. This urethane resin can be obtained by reacting a polyol with an isocyanate compound. It is advantageous to use the urethane resin in an amount of 5 to 35% by weight.
摘要:
A radiation curable coating contains an agent that imparts greater strippability to the cured coating. The agent can be included in the coating or in one or more subsequently applied maintenance coats.
摘要:
A surface covering has a base to which is laminated a rigid vinyl film. The film is precoated with an electron beam cured wearlayer. The preferred wearlayer composition is a polymerizable organic urethane-polyester wearlayer coating. The coated printed film is prepared by application of a polyester urethane acrylate composition to a printed sheet of rigid vinyl film and the coating is exposed to a low accelerating energy Electro-curtain to form an abrasion resistant topcoat with no apparent degradation of printed rigid vinyl film.