发明授权
- 专利标题： Composition and process for preparing flexible polyester based polyurethane foams
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申请号： US3637783D申请日： 1968-09-25
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公开(公告)号： US3637783A公开(公告)日： 1972-01-25
- 发明人: HALUSKA LOREN A
- 申请人： LOREN A HALUSKA , DOW CORNING
- 专利权人： Loren A Haluska,Dow Corning
- 当前专利权人： Loren A Haluska,Dow Corning
- 优先权： US76261268 1968-09-25
- 主分类号： C08G77/46
- IPC分类号： C08G77/46 ; C08J9/00 ; C07F7/08
摘要：
A COMPOSITION IS DISCLOSED WHICH CONSISTS ESSENTIALLY OF A MIXTURE OF TRIMETHYLSILYL ENDBLOCKED METHYLOPOLYOXYETHYLENE SILOXANES WHICH COMPOSITION IS USEFUL IN THE PREPARATION FLEXIBLE POLYESTER BASED POLYURETHANE FORMS. USE OF THIS COMPOSITION MINIMIZES PROBLEMS OF SPLITING AND SHRINKAGE OF THE FOAMS PROMOTES UNIFORMITY OF CELL SIZE, PROMOTES COMPATIBILITY OF THE REACTANTS AND CATALYST, AND ALLOWS WIDER PROCESSING AND FORMULATION LATITUDE.
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