Title:
架橋可能な熱可塑性ポリウレタン
Document Type and Number:
Japanese Patent JP2013518147
Kind Code:
A
Abstract:
The TPU of this invention contains unsaturation in its polymeric backbone. The unsaturation can be present in the soft segment or in the hard segment or in both the soft and hard segments of the TPU. The TPU can be molded like a thermoplastic, and can be subsequently crosslinked by exposure to electron beam irradiation into thermoset articles having excellent chemical resistance, dimensional stability, set properties, heat resistance, oxidative resistance, and creep resistance. In one embodiment, the TPUs of this invention are the reaction product (1) a hydroxyl terminated intermediate, (2) a polyisocyanate, (3) a saturated glycol chain extender, and (4) a glycol chain extender containing carbon-carbon double bonds, such as the allyl moieties present in trimethylolpropane monoallyl ether. In another embodiment of this invention, the thermoplastic polyurethane which is crosslinkable by e-beam irradiation is comprised of the reaction product of (1) a saturated hydroxyl terminated intermediate, (2) an unsaturated hydroxyl terminated intermediate, wherein the unsaturated hydroxyl terminated intermediate contains carbon-carbon double bonds, (3) a polyisocyanate, and (4) a saturated glycol chain extender.
Inventors:
Macal, Yumit G.
Brand Wide, Louis Jay.
Rover, George H.
Brand Wide, Louis Jay.
Rover, George H.
Application Number:
JP2012550132A
Publication Date:
May 20, 2013
Filing Date:
January 21, 2011
Export Citation:
Assignee:
Lubrizol Advanced Materials, Inc.
International Classes:
C08G18/65; C08F299/06; H01B3/30; H01B7/02; H01B7/295; H01B13/14
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Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita