Non-pneumatic tire and preparation process and use thereof
AssigneeCovestro Intellectual Property GmbH & Co. KG
InventorsZhong Cao, Hui Yu, Qingyun Wang, Zhengyi Gu
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Abstract
A polyurethane microcellular elastomer, a non-pneumatic tire and a preparation process and use thereof are provided. The polyurethane microcellular elastomer is obtained from a polyurethane reaction system comprising components such as isocyanate, trimethylolpropane-started polycaprolactone triol, a catalyst and a foaming agent. The non-pneumatic tire produced from the polyurethane microcellular elastomer has very strong fatigue resistance and can be used for non-motor vehicles running at high speed.
Claims20
A polyurethane microcellular elastomer obtained from a reaction system comprising the following components:
- a component A, including one or more polyisocyanates;
- a component B, including:
- B1) at least one trimethylolpropane-started polycaprolactone triol having a weight average molecular weight of 300 to 1200 g/mol as determined according to GB/T 7383-2007;
- B2) at least one polytetramethylene ether glycol having a weight average molecular weight of 650 to 2000 g/mol as determined according to GB/T 7383-2007 in a content of 80 to 90 wt %, based on the total weight of the component B;
- B3) one or more catalysts;
- and
- B4) one or more foaming agents.
A method comprising operating the motor vehicle of claim 14 at a speed of <50 km/h.
Dependencies are inferred from the claim text.