发明名称 |
CROSS-LINKED THERMOPLASTIC POLYURETHANE/POLYUREA AND METHOD OF MAKING SAME |
摘要 |
<p>A cross-linked thermoplastic polyurea is formed by heating a mixture containing a thermoplastic urethane base material, a monomeric and/or polymeric di-isocyanate comprising between 1 to 10% of the total weight of the mixture, and a diamine comprising between 1 to 10% of the total weight of the mixture. A thermoplastic polyurethane may be formed by substituting hydroquinone for the diamine. The mixture is heated to a temperature within the range of 250 °F to 550 °F. The heated mixture, which is flowable, is then injected into an injection molding device. The mixture is then cured at a temperature between 150 °F to 250 °F for a period of time between 2 and 36 hours. The cross-linked thermoplastic polyurethane/polyurea retains the excellent flowability characteristics of a thermoplastic urethane while the same time exhibits good abrasion, tensile strength, rebound, and compression set characteristics which are similar to those found in thermoset urethanes.</p> |
申请公布号 |
WO2006055330(A2) |
申请公布日期 |
2006.05.26 |
申请号 |
WO2005US40352 |
申请日期 |
2005.11.07 |
申请人 |
PRIPRO POLYMERS, INC.;DEWANJEE, PIJUSH;GUARD, JOHN |
发明人 |
DEWANJEE, PIJUSH;GUARD, JOHN |
分类号 |
C08G18/08 |
主分类号 |
C08G18/08 |
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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