发明名称 RIGID THERMOPLASTIC POLYURETHANE COMPRISING UNITS OF BUTANE DIOL AND A POLYETHYLENE GLYCOL
摘要 PURPOSE: A substituent for a RTPU being manufactured from a hexane diol for lowering cost and the RTPU adjusting a toughness, Tg, yield strength, and transparency are provided. CONSTITUTION: The present invention is a rigid thermoplastic polyurethane (RTPU) comprising units of butane diol (BDO) and a polyethylene glycol (PEG) of the type HO-(CH2CH2O)n-H, where n is an integer from 2 to 6. The RTPU of the present invention addresses a problem in the art by providing a potentially lower-cost alternative to an RTPU prepared from hexane diol, and further providing an RTPU that can be customized to a desired toughness, Tg, yield strength, and transparency. The RTPUs that are prepared from certain mole ratios of BDO and the PEG exhibit a surprisingly high degree of toughness manifested by increased tensile elongation to break.
申请公布号 KR20000010740(A) 申请公布日期 2000.02.25
申请号 KR19987008852 申请日期 1998.11.03
申请人 THE DOW CHEMICAL COMPANY 发明人 ORIANI, STEVEN, R.
分类号 C08G18/65;C08G18/32;C08G18/66;(IPC1-7):C08G18/65 主分类号 C08G18/65
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