Abstract: A fuel additive pipe 11 comprised of a pipe main body 12 and a plating layer 13 formed on the external or interior wall surface of the pipe main body 12 and composed of an electroless plating layer 131 and an electroplating layer 132. The pipe main body 12 contains a high-density polyethylene as a base material and an additive 21 such as mica. While the pipe main body 12 is subjected to an etching treatment, the additive 21 does not dissolve in the etching solution, so that the additive 21 protrudes from the surface of the pipe main body 12. The thus protruding additive 21 serves as the starting point for forming the electroless plating layer 131 and promotes growth of the layer 131. This electroless plating layer 131 is firmly bonded with the pipe main body 12 by chemical absorption to the additive 21 from which inactive sites are removed by the etching treatment as well as by the physical absorption to the fine roughness formed by the etching treatment on the surface of the pipe main body 12.

Abstract: A soundproofing material 10 is applied to a vehicle hood panel 14 on the side facing the engine compartment. The soundproofing material 10 as a whole has a sheet-like form and includes a pulverized rubber layer 11 containing rubber grains of various kinds of material, various sizes and various shapes and covering layers 12 which cover the pulverized rubber layer 11. Noises are absorbed topically by a number of rubber grains within the soundproofing material 10 and by air gaps present between the rubber grains. While noise generating sources such as an engine, an induction system unit, transmissions and so on are housed in the engine compartment, noises ranging over a plurality of wavelength are generated by them yet are absorbed by the pulverized rubber layer 11, because the pulverized rubber layer 11 contains a mixture of rubber grains of various kinds, various sizes and various shapes, and the frequency level of the noise to be absorbed by each rubber grain is different piece by piece.

Abstract: An LED display device having an LED array for a meter on a printed circuit board. A diffusing radiation lens array is disposed facing the LED array. A cover lens is overlapped on the lens array. The cover lens transmits LED light which passed through the lens array. The cover lens has at least a scale mark, a character and a sign. A sheet is interposed between the lens array and the cover lens. The sheet limits radiation of predetermined diffused light from the lens array while partially transmitting the diffused light. The cover lens has a scale mark dent and a character dent formed on its rear interior surface, and displays the scale mark and character by means of an LED light from another LED array.

Abstract: A rubber layered structure used for a weather strip or a glass run, which includes an EPDM rubber base and an ornamental surface layer or a functional surface layer for enhancing slidability of a door glass. An ornamental or functional surface layer is stuck to an EPDM rubber base with a laminated film. The laminated film includes a first layer of an olefin resin with polar functional groups and a second layer of a polar thermoplastic resin. The first layer, which includes a non-polar olefin resin and polar functional groups, adheres to both the EPDM rubber base and the second layer of a polar resin such as polyester. The second layer securely adheres to the surface layer.

Abstract: A rubber layered structure used for a weather strip or a glass run, which includes an EPDM rubber base and an ornamental surface layer or a functional surface layer for enhancing slidability of a door glass. An ornamental or functional surface layer is stuck to an EPDM rubber base with a laminated film. The laminated film includes a first layer of an olefin resin with polar functional groups and a second layer of a polar thermoplastic resin. The first layer, which includes a non-polar olefin resin and polar functional groups, adheres to both the EPDM rubber base and the second layer of a polar resin such as polyester. The second layer securely adheres to the surface layer.

Abstract: A production method for a glass run of EPDM material with a urethane slip layer and/or a flocked layer on its glass sliding area, whereby a primer layer for a urethane slip layer or a flocked layer can be co-extruded together with a glass run substrate of EPDM material. The primer layer is a polymer blend of NBR 40-80%, EPDM 20-60% and SBR 0-35% by weight, respectively. Solventless urethane coating material is applied on each primer layer to form a urethane coat. Flocking is provided only on flocked layer area. The urethane coat is cured during vulcanization of the glass run substrate, and in this way a urethane slip layer and a flocking layer can be formed.

Abstract: A weatherstrip including a strip body provided with base. The base includes a surface to which the weatherstrip is fitted onto a vehicle body and a seal portion formed integrally with the base. An adhesive layer is applied on the fitting surface, for adhering the strip body to the vehicle body. A release liner is provided for protecting the adhesive layer until the weatherstrip is fitted. The release liner contains a synthetic resin non-woven fabric layer and a film layer laminated thereon, and has a high tensile strength.

Abstract: A production method for a glass run of EPDM material with a urethane slip layer and/or a flocked layer on its glass sliding area, whereby a primer layer for a urethane slip layer or a flocked layer can be co-extruded together with a glass run substrate of EPDM material. The primer layer is a polymer blend of NBR 40-80%, EPDM 20-60%, and SBR 0-35% by weight, respectively. Solventless urethane coating material is applied on each primer layer to form a urethane coat. Flocking is provided only on flocked layer area. The urethane coat is cured during vulcanization of the glass run substrate, and in this way a urethane slip layer and a flocking layer can be formed.

Abstract: A glass run of the invention includes a furrow part on which a window glass moves and slides. The furrows of the furrow part are inclined at a predetermined angle with respect to the sliding direction of the window glass. When dirt or dust is deposited in between the window glass and the furrow part, it enters the furrows of the furrow part. The slanted configuration of the furrows of the furrow part, in combination with the sliding force of the window glass, moves dust or dirt along the furrows to a position where the dirt does not rub against the end face of the window glass. The structure of the invention keeps the window glass from undesirably rubbing dust or dirt, thus preventing an increase in sliding resistance and undesirable noise.

Abstract: A method and a device for forming a molded portion at an end of an extruded weather strip. The method includes the steps of placing the end of the extruded weather strip made of foamed elastic material in a cavity defined by a movable upper mold member and a fixed lower mold member which composes a mold, closing the mold with the end of the extruded weather strip clamped by a predetermined clamping force, injecting a foamable molding material into the cavity, moving the upper mold member up by an force not more than the clamping amount in the process of foaming of the foamable molding material to reduce clamping of the upper mold member and to enlarge the cavity, continuing molding with the upper mold member moved up until the foamable molding material fills the enlarged cavity, and opening the mold when molding of the molded portion is completed.

Abstract: A rubber shaped article having a finishing layer which comprisesa main body of rubber shaped article made of EPDM,a finishing layer of a PVC composition formed on the main body, andan adhesive layer formed between the main body and the finishing layer, said adhesive layer comprising 40 to 80% by weight of NBR, 20 to 40% by weight of EPDM and 0 to 35% by weight of SBR; and a process for producing said rubber shaped article.The rubber shaped article of the present invention provides internal and external automotive trims having an improved decorative design, with high productivity.

Abstract: A process for producing a rubber extruded article comprising a main body made of EPDM, by finishing the surface of the article with a cloth-like surface, by attaching cloth to a designated surface of the rubber substrate, said process comprisingforming the main body of an extruded article by extrusion while forming a first adhesive layer comprising a blended rubber composed of 40 to 80% by weight of NBR, 20 to 60% by weight of EPDM and 0 to 35% by weight of SBR, or a composition of the blended rubber on the designated surface of the rubber substrate,subjecting the main body of the extruded article to a vulcanization step, andthen pressure-bonding a long, narrow strip of cloth lined with a second adhesive layer of a thermoplastic resin to the first adhesive layer, and fusing the second adhesive layer together with the first adhesive layer by heating to cause the complete union of the strip of cloth to the rubber extruded article.

Abstract: A weather strip to be attached along a belt line of a door of a motor vehicle for wiping an outer surface of a door glass when the door glass is raised and lowered. The weather strip has a base portion to be attached along the belt line of a door outer panel, a lip extending from the base portion obliquely upwardly toward the door glass so that an end of the lip contacts the outer surface of the door glass, and a blade extending from the base portion under the lip in a direction of the outer surface of the door glass. An end of the blade contacts the outer surface of the door glass. When the door glass is raised and lowered, the blade turns upwardly and downwardly, thereby wiping the outer surface of the door glass.

Abstract: This invention is directed to a weather strip for use in an automobile, the main body of which is provided in the portion thereof destined to contact sheet metal parts such as a body flange or a sash with a strip of rustproofing member. The rustproofing member comprises a core, a core coating layer, and a surface layer, the core formed of a fabric impregnated with a rustproofing agent or a rustproofing material such as of a highly absorbent polymer, the core coating layer formed of a water-diffusing material, and the surface layer formed of a flexible planar material. The planar material is furnished at least on the side thereof contiguous to the metal sheet part with a water-permeating texture.

Abstract: This invention is directed to a window frame rubber molding for an automobile, whose main body incorporates an automobile body flange retaining groove and a glass retaining groove opening in the mutually opposite directions and possessing an approximately S-shaped cross section. The flange retaining groove is provided in the bottom wall thereof with a strand retaining groove converged in the direction of the opening thereof and the strand retaining groove has fitted therein a strand impregnated with rustproofing agents.

Abstract: A rubber composition for producing sponge rubber products which comprises 1 to 20 parts by weight of a blowing agent and 0.1 to 0.8 part by weight of sulfur relative to 100 parts by weight of an ethylene-.alpha.-olefin-non-conjugated dienes tetrapolymer containing as non-conjugated dienes the ethylidene-norbornene component amounting to 15 to 30 in terms of iodine value and the dicyclopentadiene component amounting to 1 to 10 in terms of iodine value and having a branching index of at least 2.

Abstract: There is disclosed a water-swelling composition which comprises polyolefinpolyol-ethylene oxide addition product, a water-absorbing polymer and an isocyanate. The composition contains a water-absorbing polymer in an amount of from 5 to 200 parts by weight and an isocyanate in an amount of from 5 to 50 parts by weight, per 100 parts by weight of a polyolefinpolyol-ethylene oxide addition product. The composition can be used as a sealant in places which must be water or moisture tight in vehicles, buildings and various machines since it is capable of speedily swelling when contacted with water.

Abstract: Adhesiveness of a halogenated butyl rubber is improved by blending with it from 5 to 20 weight parts of nickel dithiocarbamate, such as nickel butyl- or diethyldithiocarbamate, per 100 weight parts of the rubber.

Abstract: An adhesive composition useful for adhesion of rubber to metal is produced by dissolving a chlorinated type polymer and a petroleum resin, optionally in combination with a dithiocarbamate, in an organic solvent.

Abstract: A wiper blade rubber of an elongated configuration comprising a base portion of large thickness, a swinging portion substantially of a trigonal cross section, a neck portion connecting the base portion and the swinging portion and a thin plate-like lip portion disposed at the top end of the swinging portion. The basic material constituting most part of the base portion, the neck portion, the swinging portion and the lip portion is formed with soft and flexible rubber mainly composed of vulcanized ethylene-propylene rubber, and at least the surface of the lip portion is disposed with a surface layer constituted with a blended rubber composed of acrylonitrile-butadiene rubber and polyvinyl chloride resin and surface layer has a chlorinated surface layer.