发明名称 |
ELASTOMERS FOR PAPER MILL EQUIPMENT. |
摘要 |
<p>Embodiments of the invention provide for paper mill equipment that can better withstand the conditions of a paper mill. Embodiments encompass paper mill equipment that incorporate a polyurethane layer having a hysteresis value of less than 70% and a permanent set of less than 30%. The polyurethane layer includes a polyurethane produced by curing a mixed composition. The mixed composition includes at least a urethane prepolymer (A) and at least a curing agent (B) having an active hydrogen group (H). The urethane prepolymer (A) has at least one terminal isocyanate group and is obtained by reacting at least a polyisocyanate compound (a) with at least a polycarbonate diol compound (b) having a number average molecular weight of at least 1500 g/mol. The curing agent (B) includes at least an amine compound. The elastomer compositions are also useful to coat the acid pickling roller in the steel industry.</p> |
申请公布号 |
MX2014009762(A) |
申请公布日期 |
2014.09.12 |
申请号 |
MX20140009762 |
申请日期 |
2013.02.07 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC. |
发明人 |
HARPREET SINGH;WILLIAM H. HEATH;AMARNATH SINGH;ASFAR NURUL CHOWDHURY;MARCIN GRIGORIEW;KAORU AOU |
分类号 |
C08G18/48;C08G18/10;C08G18/12;C08G18/32;C08G18/40;C08G18/44;C08G18/76 |
主分类号 |
C08G18/48 |
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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