IMPROVED HYDROFLUOROCARBON BLOWN FOAM AND METHOD FOR PREPARATION THEREOF
The invention relates to the addition of .alpha.-methyl styrene, isobutanol and/or isopropanol to reduce vapor pressure, improve k-factor, enhance the solubility of the blowing agent in the premix and/or improve the processing characteristics of polyurethane and polyisocyanurate closed-cell foams pr...
Saved in:
Main Authors | , , , , , |
---|---|
Format | Patent |
Language | English French |
Published |
20.09.2001
|
Edition | 7 |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The invention relates to the addition of .alpha.-methyl styrene, isobutanol and/or isopropanol to reduce vapor pressure, improve k-factor, enhance the solubility of the blowing agent in the premix and/or improve the processing characteristics of polyurethane and polyisocyanurate closed-cell foams prepared with a blowing agent comprising a hydrofluorocarbon selected from t he group consisting of 1,1,1,3,3-pentafluoropropane, 1,1,1,2-tetrafluoroethane, 1,1,2,2-tetrafluoroethane, and mixtures thereof. |
---|---|
Bibliography: | Application Number: CA20002386931 |