PROFILED CELLULAR ARTICLE
A flexible polyvinyl chloride foam member is provided with a permanent profile or shape by use of compressive pressure and radio frequency heating. The resulting article has a higher concentration of smaller foam cells in a portion of higher density than in a portion of lower density.
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Main Author | |
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Format | Patent |
Language | English |
Published |
23.10.1973
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Subjects | |
Online Access | Get full text |
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Summary: | A flexible polyvinyl chloride foam member is provided with a permanent profile or shape by use of compressive pressure and radio frequency heating. The resulting article has a higher concentration of smaller foam cells in a portion of higher density than in a portion of lower density. |
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Bibliography: | Application Number: USD3766669 |