Reimpregnation of plastic foam particles with CO2
The process of making foam moldings without the use of organic blowing agents involves the use of inorganic gases such as carbon dioxide, nitrogen, air and other pneumatogens. Because of the rapidity with which these gases diffuse out of the polymer particles, it is necessary to pre-expand the parti...
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Main Authors | , |
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Format | Patent |
Language | English French German |
Published |
02.10.1991
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Subjects | |
Online Access | Get full text |
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Summary: | The process of making foam moldings without the use of organic blowing agents involves the use of inorganic gases such as carbon dioxide, nitrogen, air and other pneumatogens. Because of the rapidity with which these gases diffuse out of the polymer particles, it is necessary to pre-expand the particles and then reimpregnate the particles with the same or different gas. |
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Bibliography: | Application Number: EP19900303148 |