Sunstar Giken Kabushiki Kaisha

Other

Sunstar Suisse S.a.

Sunstar Engineering Pte. Ltd.

Ligaric Co., Ltd.

Masahito Mori

Hirokazu Okamoto

Kohske Torii

Kiichi Yamashita

Mutsuhisa Miyamoto

Tatsuya Wakamori

Masaaki So

Koichiro Sanji

Toshio Kadowaki

Ryuichi Ueda

Hirohide Tomoyasu

Hideyasu Tsuji

Kousuke Torii

Masaaki Soh

Masaki Ugai

Kiyoshi Nakayama

Toru Oka

Yasuhiro Tsuji

Haruka Miyao

Shigeru Sugi

A process of reinforcing a closed sectional portion of a vehicle body with a two-pack urethane foam composition. The process including the operations of injecting a two-pack urethane foam composition into the closed sectional portion of a vehicular body member; foaming and curing the two-pack urethane foam composition within said closed sectional portion; and then viewing the cured urethane foam-filling confirming opening to confirm whether the closed sectional portion has been sufficiently filled by the two-pack urethane foam composition. The closed sectional portion has a cured urethane foam-filling confirming opening, which is a hole extending through a wall of the closed sectional portion, The opening dimension of the cured urethane foam-filling confirming opening is 10 mm or less in order to assure rigidity of the vehicular body member.

Two-pack urethane foam composition, and two-pack urethane foam composition injecting apparatus and method

An apparatus is disclosed for injecting an expandable or foaming material in a closed sectional structure of a body. The apparatus is suitable for mass-producing vehicles, such as automobiles efficiently. This apparatus is provided with a manipulator () movable to a desired position, a injector () fixed to the manipulator, a device () for supplying the expandable or foaming material to the injector, and a controller () adapted to control the position of the manipulator () so that the injector is set in a position in which the foaming material can be supplied to the closed sectional structure of the vehicle body through an injection port of the same closed sectional structure, and also adapted to control the supply device so that the foaming material can be injected and filled in the closed sectional structure thereof by only such an amount that was set in accordance with the volume of the inside of the sectional structure.

A precoated skin material for an automobile interior part comprising (a) a skin material for an automobile interior part and (b) a one-pack type thermally crosslinkable polymer composition comprising (i) a thermoplastic olefinic polymer having a carboxylic acid group or an acid anhydride group, (ii) a latent curing agent, (iii) a carbonyl compound as a solvent and (iv) a tackifier, which composition is coated on the back surface of the skin material, wherein the latent curing agent is a solid polyamine having a melting point of 80 to 200&deg; C. which form hydrolyzable reaction products by a condensation reaction with the carbonyl compound used as the solvent, or a hydrolyzable reaction product of a diamine with a carbonyl compound.

Precoated skin material for automobile interior part

An apparatus is disclosed for injecting an expandable or foaming material in a closed sectional structure of a body. The apparatus is suitable for mass-producing vehicles, such as automobiles efficiently. This apparatus is provided with a manipulator ( ) movable to a desired position, a injector ( ) fixed to the manipulator, a device ( ) for supplying the expandable or foaming material to the injector, and a controller ( ) adapted to control the position of the manipulator ( ) so that the injector is set in a position in which the foaming material can be supplied to the closed sectional structure of the vehicle body through an injection port of the same closed sectional structure, and also adapted to control the supply device so that the foaming material can be injected and filled in the closed sectional structure thereof by only such an amount that was set in accordance with the volume of the inside of the sectional structure.

Two-pack urethane foam composition

A two-pack, crosslinking aqueous adhesive, which comprises (A) an adhesive component comprising an aqueous liquid of a polymer containing at least one of a halogen atom, a carboxyl group or an ester bond in the backbone chain or side chain of the polymer molecule and (B) a curing component comprising an active silyl compound containing at least one of an amino group or an imino group in the molecule, which has excellent emulsion stability after mixing the components, long pot-life and excellent heat resistance and is suitable for adhesion of materials which require heat resistance such as interior automotive trims.

Two-pack crosslinking aqueous adhesive

One-pack chloroprene adhesive having excellent adhesion and excellent heat resistance, particularly excellent heat aging resistance, which comprises a chloroprene rubber modified with an aminosilane, a petroleum resin as a tackifier resin and an organic solvent, which is useful for adhering and laminating various products such as metallic materials, woven fabrics, fiber products, wooden products, leather products, plastic materials, etc.

One-pack chloroprene adhesive

A two-part polyurethane adhesive which comprises a main component comprising a hydroxyl-terminated saturated polyester resin or a polyester urethane rubber prepared by reacting said hydroxyl-terminated saturated polyester resin with a diisocyanate compound, and a curing agent comprising a urethane prepolymer having an active isocyanate group which is prepared by reacting a hydrogenated hydroxyl-terminated polybutadiene with an excess amount of a polyisocyanate. Said polyurethane adhesive is useful for adhering a polyolefin base material and a covering material for the production of automobile interior parts.

Polyurethane adhesive

A moisture-crosslinkable primer which comprises a solution of a hydrogenated polybutadiene into which has been introduced a silyl group of the formula: ##STR1## wherein R is an alkyl group having 1 to 5 carbon atoms, R' is an alkoxy group having 1 to 5 carbon atoms or a halogen atom, and n is an integer of from 1 to 3, in an organic solvent, which has excellent heat-resistant adhesion and durable adhesion and is useful for adhering between polyolefinic substances or between polyolefinic substances and other organic substances.

Moisture-crosslinkable primer for polyolefins

The invention relates to a moisture-curable primer composition comprising a reaction product between a maleic anhydride-modified styrene-ethylene-butene-styrene copolymer and an epoxysilane compound. This primer composition is particularly useful for the bonding of polyolefin adherents.

Moisture-crosslinkable primer composition

A two part primer composition comprising a main component comprising at least one styrene-ethylene-butene-styrene block copolymer or styrene-ethylene-propylene-styrene copolymer, said copolymer being copolymerized with maleic anhydride hydrogenated, and an amine catalyst, and a curing component comprising an epoxy resin having two or more functional groups, which has excellent heat-resistant adhesion and durable adhesion and is suitable for adhering between polyolefinic substances or between an polyolefinic substance and other organic substance.

Two part primer composition of anhydride-modified sebs or seps block

Improved bonding agent comprises a reaction product or mixture of an epoxyalkylalkoxysilane and a polyamine, and a resin composition comprising as the main ingredient conventional synthetic resin or synthetic rubber and the bonding agent as set forth above, which has excellent adhesion, particularly durability of adhesion, and is useful as an adhesive or a paint.

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Takatsuki, Japan

Masahito Mori