Grasping parts
AssigneeAsahi Kasei Kabushiki Kaisha
InventorTetsuo Masubuchi
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Abstract
The present invention provides a gripping part such as a steering wheel and a grip, having a soft feeling equivalent to a RIM urethane and excellent sweat resistance, without the need of coating, which solves problems involved in RIM urethane steering wheels and grips including low productivity, low recycling property, and the like. That is, a gripping part comprising a foamed product of a thermoplastic elastomer with a 1.1 to 8.0 times expansion ratio, wherein the thermoplastic elastomer is a polyurethane elastomer comprises a specific polymer polyol, a polyisocyanate, and as needed, a chain extending agent reactive with the polyisocyanate.
Claims8
A gripping part comprising a foamed product of a thermoplastic elastomer with a 1.1 to 8.0 times expansion ratio, wherein the thermoplastic elastomer is a polyurethane elastomer produced by copolymerizing the following (a) and (b):
- (a) a polymer polyol including an aliphatic polycarbonate comprising repeating units of the following formulae (1) and (2), with the ratio ((1)/(2)) of (1) to (2) being 10/90 to 90/10 (molar ratio) (wherein n is an integer of 4 and/or 5),
- and
- (b) a polyisocyanate.
Dependencies are inferred from the claim text.