发明名称 |
POLYURETHANE FOAM BY REACTION INJECTION MOLDING |
摘要 |
The present invention provides a method for preparing a foam that includes a polyurethaneurea dispersion. These foams have enhanced flexibility and resistance to compressibility compared to convention polyurethane foam. These foams may also be made by a reaction injection molding process. The method includes preparing a shaped polyurethane foam article by: (a) providing a first composition comprising at least one polyol, a chain extender composition and a blowing agent; (b) providing a second composition comprising at least one of a diisocyanate, a capped glycol, and combinations thereof; (c) mixing the first composition and the second composition to form a reaction mixture into a heated mold; and (d) allowing the reaction mixture to form a polyurethane foam; wherein the first composition includes one of: (i) the chain extender composition includes at least one amine compound; (ii) the blowing agent includes a polyurethaneurea aqueous dispersion; and (iii) combinations of (i) and (ii). |
申请公布号 |
EP2920233(A1) |
申请公布日期 |
2015.09.23 |
申请号 |
EP20130854447 |
申请日期 |
2013.11.13 |
申请人 |
INVISTA TECHNOLOGIES S.À.R.L. |
发明人 |
LAMBERT, JAMES, MICHAEL;FARMER, DOUGLAS, K.;BIVIGOU KOUMBA, ACHILLE, MAYELLE |
分类号 |
C08J9/04;C08L75/02;C08L75/04 |
主分类号 |
C08J9/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|