发明授权
- 专利标题： Thermoplastic polyurethane containing structural units of polyester and polyether diols
- 专利标题（中）： 含聚酯和聚醚二醇结构单元的热塑性聚氨酯
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申请号： US11991832申请日： 2006-09-22
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公开(公告)号： US08296974B2公开(公告)日： 2012-10-30
- 发明人: Mark F. Sonnenschein , J. Mark Cox , Hanno R. Van der Wal , Benjamin L. Wendt
- 申请人： Mark F. Sonnenschein , J. Mark Cox , Hanno R. Van der Wal , Benjamin L. Wendt
- 申请人地址： US OH Cleveland
- 专利权人： Lubrizol Advanced Materials, Inc.
- 当前专利权人： Lubrizol Advanced Materials, Inc.
- 当前专利权人地址： US OH Cleveland
- 代理商 Christopher P. Demas
- 国际申请： PCT/US2006/037182 WO 20060922
- 国际公布： WO2007/041049 WO 20070412
- 主分类号： A43B5/04
- IPC分类号： A43B5/04 ; C08G18/00
摘要：
The present invention is a transparent thermoplastic polyurethane (TPU) comprising structural units of: a.) a diisocyanate; b.1) a polyester diol and b.2) a specific polyether diol and c.) a chain extender. The TPU has good combinations of light transmission and clarity, tensile strength, low temperature flexibility, and high moisture vapor transition rates compared to other commercial or known TPUs. A preferred example composition is a TPU that is based on MDI as the diisocyanate monomer, polycaprolactone as a polyester diol, an EO capped EO/PO polyether diol containing less than 20% EO, and butanediol as chain extender. These composition have good combinations of clarity, tensile strength, hydrolytic stability and processability compared to TPUs prepared using either polyester or polyether diols alone or the combination with a higher EO polyether diol.
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