POLYURETHANE SANDWICH STRUCTURE ELEMENT AND PROCESS FOR PRODUCTION THEREOF
For the production of sandwich structure elements comprising noncellular polyurethane layers and polyurethane foamed layers which are produced on a substrate by the application of layers to a substrate, it is proposed that at least the non-cellular polyurethane layers contain 15 to 55 % by weight of...
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Main Authors | , , , |
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Format | Patent |
Language | English French |
Published |
24.08.1996
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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Summary: | For the production of sandwich structure elements comprising noncellular polyurethane layers and polyurethane foamed layers which are produced on a substrate by the application of layers to a substrate, it is proposed that at least the non-cellular polyurethane layers contain 15 to 55 % by weight of mica. Sandwich structure elements are obtained which are particularly dimensionally accurate and which adhere well. The effect is believed to be based on a non-homogeneous curing reaction of the mixture which reacts to form polyurethane, due to the presence of mica. |
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Bibliography: | Application Number: CA19962169800 |