| 摘要 |
The present invention relates to a composition for use as a blowing agent in injection molding processes. More specifically, the present invention is a blowing agent composition comprising a molecular sieve and a foaming agent, wherein the foaming agent is carded by the molecular sieve and evolves to form foamed plastic products. In addition, the present invention is a method for preparing a blowing agent composition and a foamable blowing agent-resin mixture. Furthermore, the present invention is a foamed plastic resin containing a molecular sieve. Additionally, the present invention provides a composition and method for foaming moisture-sensitive polymers comprising the addition of molecular sieves and a poly-hydroxy ester. The present invention also advances a method of encapsulating a blowing agent on a polymer substrate and a corresponding encapsulated blowing agent composition.
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