发明名称 |
PAPER MAKING SHOE PRESS BELT |
摘要 |
A paper making shoe press belt includes a reinforcing fiber substrate and a polyurethane laminate. The reinforcing fiber substrate is embedded in at least one layer of the polyurethane laminate. At least one layer of the polyurethane laminate includes a polyurethane obtained by heat-curing a urethane prepolymer together with a mixed curing agent. The urethane prepolymer includes a terminal isocyanate group and is obtained by reacting a diisocyanate compound and a long-chain polyol. The diisocyanate compound includes at least one of toluene-diisocyanate, diphenylmethane-diisocyanate, and paraphenylene-diisocyanate. The mixed curing agent includes 70-99.5 mol % of dimethylthiotoluenediamine and 0.5-30 mol % of a curing agent. The curing agent includes at least one of diethyltoluenediamine and hydroquinone bis (beta-hydroxyethyl) ether. An equivalent ratio of active hydrogen groups of the mixed curing agent to isocyanate groups of the urethane prepolymer is from 1.02 to 1.15.
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申请公布号 |
US2013192788(A1) |
申请公布日期 |
2013.08.01 |
申请号 |
US201213541946 |
申请日期 |
2012.07.05 |
申请人 |
YAZAKI TAKAO;YAMAZAKI SHINTARO;TAKAMORI YUYA;ICHIKAWA CO., LTD. |
发明人 |
YAZAKI TAKAO;YAMAZAKI SHINTARO;TAKAMORI YUYA |
分类号 |
D21F7/08 |
主分类号 |
D21F7/08 |
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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