发明名称 |
Process for incorporating powders in viscous fluids |
摘要 |
In order to overcome the problems encountered in attempting to mix finely divided organic polymer materials into viscous polyol because of accompanying air entrainment, the polymer material is pretreated with a volatile liquid halocarbon or liquid hydrocarbon in an amount at least sufficient to wet the surfaces of the polymer particles. The halocarbon or hydrocarbon is one preferably otherwise employed as a blowing agent for the preparation of foamed resin polymers such as a polyurethane; particularly methylene chloride or a fluorocarbon (e.g. monofluorotrichloromethane). In accordance with an alternative embodiment the volatile treating liquid may be first mixed with the viscous polyol before addition of the ground material therein.
|
申请公布号 |
US4692470(A) |
申请公布日期 |
1987.09.08 |
申请号 |
US19860825832 |
申请日期 |
1986.02.04 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
BAUMAN, BERNARD D.;BURDICK, PATRICIA E. |
分类号 |
C08J3/11;C08J9/00;C08J11/06;(IPC1-7):C08J9/40 |
主分类号 |
C08J3/11 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|