<p>This invention provides chain extender compositions. These compositions comprise aliphatic secondary diamines in which the amino hydrocarbyl groups are different from each other. Processes for producing polyurethanes, polyureas, and polyurea-urethanes using these aliphatic secondary diamines are also provided.</p>
申请公布号
WO2008100772(A1)
申请公布日期
2008.08.21
申请号
WO2008US53286
申请日期
2008.02.07
申请人
ALBEMARLE CORPORATION;WIGGINS, PAUL, L.;LEE, JOHN, Y.