Abstract: High-density polyisocyanurate resins having improved rigidity, heat resistance and/or impact resistance can be obtained by reacting a polyisocyanate with a polymer polyol derived from a polyol having a molecular weight of at least 4500, and optionally a crosslinker, in the presence of trimerization catalyst, using isocyanate index of 200-5000.

Abstract: Auto parts prepared from polyurethane are manufactured by a process comprising:(a) preparing a polyol component by blending a stabilizer combination of (A) nickel dibutyldithio carbamate with (B) N-mono- or dimethylphenyl-N'-mono- or dimethylphenylphenylenediamine and/or (C) N,N'-diphenyl-p-phenylenediamine with a polyol and carbon black;(b) reacting said polyol component with a polyisocyanate: and(c) molding said reacted mass.

Abstract: A shock absorbing bumper adapted for mounting on the front and rear ends of a vehicle such as an automobile, comprising an elastic external guard member having sheathed therein a shock absorbing flexible core member and a separately molded elastic decorative facing base provided on the front surface of the external guard member. The elastic facing base is integrally secured to a horizontal recession in the surface of the external guard member by inserting claws at both edges of the facing base into the corresponding holes formed along both upper and lower edges of the recession.

Abstract: A shock absorbing bumper adaptable for mounting onto the front and rear of a vehicle such as an automobile, the bumper comprising an elastic external member having sheathed therein a flexible core material and a decorative facing provided on the front side of the external member. An elastic facing base having formed on its front side the elastic decorative facing is provided on its rear side with a hook or hooks which fit into the corresponding slits formed in the front portion of the external member and are engaged therein in such a way that they overhang the edges of the slits while the rims of the facing base fit in the lateral notches also formed in the external member.

Abstract: An auto ceiling panel takes the form of a laminate composed of a permeable ceiling surface skin, a first layer of porous continuous bubble plastic foam attached to the skin, a second foamed plastic layer with numerous through holes attached to the first layer, and a third foamed plastic layer with through holes of a larger diameter than the holes in the second layer. A metal lath is between the second and third layers, and the second and third layers are fused to the metal lath.

Abstract: A polyurethane foam which absorbs impact effectively is prepared by cross-linking short chain polyol to high polymer polyol chains by using polyisocyanate.

Abstract: A flexible foamed product with skin, characterized in that on the surface of the foamed product there is formed a skin composed of the reaction product of a linear urethane polymer, a polyol or an urethane prepolymer with an OH-terminal group compatible with the linear urethane polymer, and a blocked isocyanate; and the process for manufacturing such a product.

Abstract: Highly acoustical auto ceiling panel characterized in that polyethylene foams are laminated with a metal lath sandwiched between them; the surface of the interior side polyethylene foam is coated with a vinyl chloride sheet and this foam with said sheet is provided with numerous small holes through two layer, while the other polyethylene foam across said metal lath is provided with numerous through holes of a diameter larger than that of the hole in the former foam; and the manufacturing process of this auto ceiling panel.

Abstract: Auto ceiling panel with an improved sound-absorbing effect which is obtained by thermally fusing a polyethylene foam with numerous small holes and another polyethylene foam with numerous large holes with a metal lath sandwiched between them; and its manufacturing method.

Abstract: A process for manufacturing high-resilient flexible urethan foams characterized by, reacting and foaming polyalkylene ether polyol and an organic polyisocyanate in the presence of a blowing agent, a surfactant and catalyst, (1) using as said polyalkylene ether polyol one which contains 2 to 10% by weight of a vinyl type polymer and in which its hydroxyl number ranges from 25 to 60 mg KOH/g, of its hydroxyl groups 20 to 70 mol% are primary hydroxyl groups and the remaining hydroxyl groups are secondary hydroxyl groups; (2) using as said organic polyisocyanate a mixture of tolylene diisocyanate with diphenylmethane diisocyanate or a crude diphenylmethane diisocyanate; and (3) using as said surfactant a mixture of a high-molecular-weight siloxane-oxyalkylene copolymer with a low-molecular-weight siloxane-oxyalkylene copolymer.

Abstract: An automotive ceiling panel and a process for manufacturing same, in which one surface of a first polyethylene foam layer is embossed to form a crimp pattern thereon, a metal lath is sandwiched between the first polyethylene layer and a second polyethylene layer, then the three layers thus placed are introduced between rollers for fusion-bonding and rolling, and a laminate thus prepared is cold-pressed into a desired shape for a ceiling. This automotive ceiling panel consists of three layers, rather than four layers as in the prior art ceiling panels, thus saving its weight and man hours required for manufacture to a great extent, yet providing high quality.

Abstract: A machine comprises a wire station for supplying various wires, a harness board on which a cable harness is to be formed, and a harness laying head movable relative to the harness board for receiving selected one of the wires from the wire station laying the selected wire on the harness board. The wire station comprises a plurality of wire clampers for releasably clamping the respective wires with their free ends protruding approximately a predetermined length towards the harness laying head.