发明名称 |
Urethane composition for sheet transport roll, and sheet transport roll produced by employing the urethane composition |
摘要 |
A urethane composition for making a sheet transport roll, the composition comprising: (A) a polyether polyol blend containing polytetramethyleneether glycol (PTMG) and polypropylene glycol (PPG) in a weight ratio of PTMG/PPG=99/1 to 50/50; (B) a polyisocyanate; and (C) a chain lengthening agent; the urethane composition in a cured state having a hardness of not smaller than 40, and a crosslinking density of 0.15 to 0.8 mmol/cm<3 >or an allophanate bond concentration of 0.03 to 0.07 mmol/g.
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申请公布号 |
US6734274(B2) |
申请公布日期 |
2004.05.11 |
申请号 |
US20010940787 |
申请日期 |
2001.08.29 |
申请人 |
TOKAI RUBBER INDUSTRIES, LTD. |
发明人 |
SUZUKI SATOSHI;YOSHIKAWA HITOSHI;WAGO YOSHIHIRO;SHIRAKI KEITA |
分类号 |
C08G18/12;C08G18/48;(IPC1-7):C08G18/48;B65H5/06;B65H27/00 |
主分类号 |
C08G18/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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