Invention Grant
US08357768B2 Low haze thermoplastic polyurethane using co-chain extenders 有权
低雾度热塑性聚氨酯,使用共扩链剂

  • Patent Title: Low haze thermoplastic polyurethane using co-chain extenders
  • Patent Title (中): 低雾度热塑性聚氨酯,使用共扩链剂
  • Application No.: US12085612
    Application Date: 2006-11-17
  • Publication No.: US08357768B2
    Publication Date: 2013-01-22
  • Inventor: Hani FarahFrancisco Lerma, Jr.
  • Applicant: Hani FarahFrancisco Lerma, Jr.
  • Agent Christopher P. Demas
  • International Application: PCT/US2006/044545 WO 20061117
  • International Announcement: WO2008/057101 WO 20080515
  • Main IPC: C08G18/32
  • IPC: C08G18/32 C08G18/42 C08G18/76
Low haze thermoplastic polyurethane using co-chain extenders
Abstract:
The present invention is a low haze thermoplastic polyurethane (TPU) comprising structural units of a diisocyanate; a diol and three different chain extenders (butanediol chain extender; a different linear diol co-chain-extender and a cyclic co-chain-ex-tender). The TPU has good combinations of light transmission and clarity, low temperature flexibility, and high moisture vapor transition rates compared to other commercial or known TPUs. The preferred composition is a TPU that is based on polycaprolactone as diol, MDI as the diisocyanate monomer, butanediol chain extender, 1,3 propanediol linear chain co-extender and cyclohexanedimethanol cyclic chain co-extenders, and has good clarity and tensile strength.
Public/Granted literature
Information query
Patent Agency Ranking
0/0