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AssigneeToyoda Synthetics Co., Ltd.
InventorsRyoichi Muroi, Toshiyasu Ito, Takao Nomura, Tsugumi Sanmiya, Yasuhiro Mishima, Yoshiro Umemoto
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Elastic metallized decorative moldings are disclosed composed of a modified polyurethane resin as a substrate coated on the surface thereof with a metallized layer, the polyurethane resin comprising 50-95 parts by weight of a thermoplastic polyurethane resin incorporated with 5-50 parts by weight of an acrylonitrile-butadiene-styrene resin comprised of at least 75% by weight of an acrylonitrile-styrene component and not more than 25% by weight of a butadiene component. Such elastic metallized decorative moldings are useful as impact-absorbing materials with beautiful appearance for various structures, especially as bumper moldings for motor vehicles.
An elastic metallized decorative molding comprising a modified polyurethane resin as a substrate having coated on the surface thereof a metallized layer, said polyurethane resin comprising 50-95 parts by weight of a thermoplastic polyurethane resin comprising the reaction product of (a) a poly(pentamethylenecarbonyloxy) glycol having an average molecular weight of about 1800-2200 or (a') a polytetramethylene adipate glycol, (b) tetramethylene glycol in an amount of 2.5-4.5 mols per mol of the glycol (a) or (a'), and (c) diphenylemethane-4,4'-diisocyanate in a molar amount corresponding to the total mols of the glycols (a) or (a') and (b), incorporated with 5-50 parts by weight of an acrylonitrile-butadiene-styrene resin comprised of at least 75% by weight of an acrylonitrile-styrene component and not more than 25% by weight of a butadiene component.
A bumper molding for a motor vehicle which comprises a modified polyurethane resin substrate in the form of a bumper molding having coated on at least one surface thereof a metallized layer, said polyurethane resin comprising 50-95 parts of a thermoplastic polyurethane resin comprising the reaction product of (a) a poly(pentamethylene-carbonyloxy) glycol having an average molecular weight of about 1800-2200 or (a') a polytetramethylene adipate glycol, (b) tetramethylene glycol in an amount of 2.5-4.5 mols per mol of the glycol (a) or (a') and (c) diphenylemethane-4,4'-diisocyanate in a molar amount corresponding to the total mols of the glycols (a) or (a') and (b), incorporated with 5-50 parts by weight of an acrylonitrile-butadiene-styrene resin comprised of at least 75% by weight of an acrylonitrile-styrene component and not more than 25% by weight of a butadiene component.
Dependencies are inferred from the claim text.