METHOD FOR PRODUCING SOFT TO SEMI-RIGID POLYURETHANE INTEGRAL FOAMED MATERIALS
The invention provides a process for the production of flexible to semi-rigid polyurethane shaped articles with a compacted edge zone of given hardness and a significantly more flexible cell core, so-called integral foams, in which non--combustible mixtures of fluoroalkanes which comprise 1,1,1,3,3-...
Saved in:
Main Authors | , |
---|---|
Format | Patent |
Language | English French |
Published |
09.02.2010
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The invention provides a process for the production of flexible to semi-rigid polyurethane shaped articles with a compacted edge zone of given hardness and a significantly more flexible cell core, so-called integral foams, in which non--combustible mixtures of fluoroalkanes which comprise 1,1,1,3,3-pentafluorobutane (R 365mfc) are employed as physical blowing agents. |
---|---|
Bibliography: | Application Number: CA20002394169 |