Abstract: A painted plastics article in the form of a vehicle wing comprises a polypropylene substrate with a polyamide or polyester coating formed by dual injection or blow moulding. The coating makes the wing suitable for subsequent painting which may be carried out on a normal vehicle paint line used to paint a metal body-in-white. To promote adhesion between the polypropylene substrate and the coating, the substrate includes an admixture of a compatibiliser such as a maleic anhydride grafted polypropylene.

Abstract: A first information recording medium (shown in Fig. 1(a)) has an electrode layer (13), and an information recording layer (11) provided on the electrode layer by coating a mixed solution of a liquid crystal, a multifunctional ultraviolet curing resin material whose parameter, which is expressed by the average molecular weight divided by the average functional group, is not larger than 160, and a fluorocarbon surface-active agent, and then curing the coating by irradiation with ultraviolet rays, thereby forming an ultraviolet curing resin skin layer having no liquid crystal phase on the outer surface of the information recording layer. A second information recording medium (shown in Fig. 1(b)) further has a patterned electrode layer (13') provided on the information recording layer (11) of the first information recording medium. A third information recording medium (shown in FIG.

Abstract: A deposit layer is deposited on the exposed surface of a surface layer formed on a semiconductor wafer. The depositing of the deposit layer continues at least until the deposit layer extends over all the recesses to close completely the openings of all of the recesses to thereby form enclosed areas within the recesses which are devoid of a material of the deposit layer. After forming the enclosed areas within the recesses, the wafer and the deposit layer are then subjected to pressure and heat treatment sufficient to cause parts of the deposit layer to deform to fill the enclosed areas within the respective recesses.

Abstract: This invention relates to a process for improving the adhesion of copper circuitry to a dielectric layer and a method for forming a multilayer printed circuit board wherein the copper circuitry of the board is covered with a layer of an oxide, hydroxide, or combination thereof of a metal selected from the group consisting of tin, bismuth, lead, indium, gallium, germanium, and alloys of said metals. The process and multilayer circuit boards made thereby, have improved laminate adhesion and strength. Further, partial delamination, known as pink ring, is decreased or avoided by the present process. Further, the multilayer structures have decreased bond strength deterioration when exposed to elevated temperatures.

Abstract: A method is provided for forming a dissolvable or strippable polymeric release coating on the surface of flexible web, forming an overcoated metallized or optically variable layer on said release coating, and stripping or dissolving the release coating to release the overcoated layer. The release coating comprises a polymer of crotonic acid which is soluble in a solvent such as acetone. The polymer may be a copolymer of crotonic acid and at least one vinyl ester such as vinyl acetate. The release coating may be formed during an in-line process which begins with drawing the flexible web from a molten polymeric material. The methods are particularly advantageous for forming optically variable flakes and multilayered optically variable devices.

Abstract: An apparatus for transferring and spreading a high-viscosity bonding agent to a thickness of about 10 .mu.m on a bonding-agent onto a member. The device includes a squeegee table on which a bonding agent is spread, and a film moving device for feeding a film made of elastic material from one end to the other end of the squeegee table at a predetermined speed and sticking the film onto the bonding agent. The film moving device then peels the film off the spreading side at a speed at which the upper half of the bonding agent layer is peeled off from the other end of the squeegee table, whereby the thickness of the bonding agent is reduced to half of that which has been spread on the squeegee table. The film moving device then feeds the film having the bonding agent onto a member and peels off the film from the member, thereby transferring a bonding agent having a thickness of about 1/4 of the thickness of the bonding agent spread on the spreading side, not greater than 10 .mu.m, for example, to the member.

Abstract: A process for applying a polyurethane elastomeric lining for truck beds and product produced by same, including a kit, enabling do-it yourself application by a truck owner of a protective coating of the inner surfaces which define a truck bed, which coating is effective for preserving the durational utility of the involved interior walls without the need for professional assistance or specialized equipment.

Abstract: This invention relates to a method of modifying or tailoring the surface of polymers and or polymer-based materials to control surface and interface chemistry and molecular structure. In particular a method of modifying at least a part of the surface of a polymer including: (i) oxidising at least part of the surface of the polymer and (ii) treating the oxidised surface with at least one multifunctional amine-containing organic compound to bind said compound to the oxidised polymer surface.

Abstract: The matte finished coated paper is a paper web having a smoothness of 0.5 to 20 seconds, when measured pursuant to JIS P8119, and a surface roughness Ra of 3.2 to 7.0 .mu.m, when measured pursuant to JIS B0601, provided with a surface coating on at least one side containing polyolefin resin particles, an adhesive and a pigment. The pigment includes porous particles of organic pigment material and calcium carbonate particles. The porous particles of organic pigment material have an oil absorbancy of 80 to 400 ml/100 g when measured pursuant to JIS K5101, each calcium carbonate particle has an average particle diameter of 1.0 to 10 .mu.m and each polyolefin resin particle has an average diameter of 8 to 30 .mu.m. The surface coating has a degree of gloss in a range of from 1 to 10%, when measured pursuant to JIS P8142 at 75.degree. C., a smoothness in a range of from 1 to 25 seconds, when measured pursuant to JIS P8119, and a surface roughness Ra in a range of from 2.0 .mu.m to 6.0 .mu.

Abstract: The invention relates to a method for manufacturing a product on a basis of mineral wool, including the steps of: i) preparing a phenol-formaldehyde resin, ammonia and a sugar preparation containing aqueous preparation; ii) applying the preparation to the mineral wool; and iii) curing the mineral wool with forming of the product, and to a kit for preparing the mineral wool product, including a container holding the resin preparation and a container holding the sugar preparation.

Abstract: This invention relates to substrates for paperboard packaging having a press-applied barrier coating. Such structures of this type, generally, reduce the edgewick in the paperboard package such that catastrophic failure of the paperboard package is substantially reduced.

Abstract: This invention relates to water-based hydrophilic coatings suitable for giving hydrophilicity primarily to the surface of aluminum and to a process for manufacturing precoated fin materials for heat exchangers with use of said coatings. The coatings are composed of colloidal silica with a dispersed particle diameter of 5 to 100 nm, water-soluble polymers containing at least carboxylic acid polymers, anionic surfactants and water; the colloidal silica and the water-soluble polymers are present at a weight ratio of 30:70 to 70:30 on a solid basis in a combined content of 4 to 20% by weight, the content of carboxyl group in the carboxylic acid polymers contained in the water-soluble polymers is 20 to 63% by weight, the anionic surfactants are alkali salts of sulfosuccinic acid monoalkyl esters with alkyl groups containing 1 to 18 carbon atoms and present in an amount of 5 to 20% by weight of the combined solid content of the colloidal silica and the water-soluble polymers, and the pH is 1 to 5 as a whole.

Abstract: A method is disclosed for forming pre-impregnated fibers suitable for making a composite article. A plurality of fibers (14) are pre-impregnated with about 50% by weight of an aqueous-based chemical treatment containing a curable resin, and then contacted with a drying device (41) which effects drying of the chemical treatment without effecting full curing of the resin. The pre-impregnated fibers may then be formed into a composite article in a subsequent forming operation, for example, by filament winding, pultrusion, weaving, knitting, or extrusion coating.

Abstract: Joints or other discontinuities in live gas pipelines are sealed by spraying the joint or discontinuity with a coating material by means of an explosion-proof coating device, capable of traversing long lengths of pipe. The coating device is inserted into the pipe and uses a halogen lit explosion-proof camera for locating joints or other discontinuities in the pipe. The preferred coating material is a high build epoxy-type elastomeric polyurethane, which quickly cures in the presence of pressurized flowing gas. Several joints or discontinuities, spanning several hundred feet of pipe, may be coated using a single excavation.

Abstract: The invention provides a commercially feasible method of manufacturing a photochromic lens on a large scale. The method involves vacuum depositing a photochromic material onto a surface of a plastic lens to form a photchromic depositied lens, and heating the photochromic deposited lens for a time and at a temperature sufficient to allow the photochromic material to permeate the lens.

Abstract: A lubricant finish for high speed twisting of textile yarns is provided which incorporates an alkenyl succinic acid, or an anhydride, ester or salt of the acid.

Abstract: The invention relates to a method for painting an object during a creative shaping process, for example an injection-molding, extrusion-molding, or back-foaming method with a paint film, as well as a paint film for working the method. In the method, a paint film is placed in an open mold that internally has the original shape of the part. The mold is closed and filled with a starting material, with the starting material curing and/or bonding and/or reacting inside the mold to at least shape the object. To simplify the method, the paint in the paint layer of the paint film is partially cured and/or partially crosslinked before the starting material is added, without adhesive, and is cured only during and/or after the starting material is placed in the mold.

Abstract: A flowable coating material, such as a liquid having solids in suspension, such as spin-on glass, is applied to a surface of an electronic component by placing the component in a centrifuge and spinning the component about a first axis so that the liquid material is forced against the surface of the component. The component may also be rotated about its own axis so that the liquid material is distributed along the surface of the component.

Abstract: A method for treating carpets is provided which obviates the need for scouring. In accordance with the method, an unscoured carpet is treated topically, and by means of a low wet pickup method, with a solution comprising particles of silica or a similar inorganic additive and a fluorochemical or other optional organic additive. Carpets treated in accordance with this method are found to have excellent soil resistance properties which do not decrease noticeably with subsequent wear or cleaning. Furthermore, since the method involves a low wet pickup, the required drying times are significantly reduced as compared to conventional aqueous bath immersion methods.

Abstract: This invention is directed to an aqueous colored coating composition which is applied with a spray device having a fine-orifice nozzle(s), the composition comprising a neutralized acrylic copolymer containing an alkoxysilyl group and a carboxyl group and a coloring pigment.