发明名称 |
PROCESS FOR ENABLING SECONDARY EXPANSION OF EXPANDABLE BEADS |
摘要 |
The present invention enables the secondary expansion of lightweight foamed beads. The foamed beads are produced using a compound comprising a compostable or biobased polyester and a physical blowing agent as well as a chemical blowing agent. Secondary expansion can be used either to lower the density of the foamed bead further or to enable expansion of the beads during molding to promote fusion. The foam beads can be produced using conventional melt processing techniques, such as single and twin-screw extrusion processes.
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申请公布号 |
CA2770956(A1) |
申请公布日期 |
2013.03.12 |
申请号 |
CA20122770956 |
申请日期 |
2012.03.09 |
申请人 |
LIFOAM INDUSTRIES |
发明人 |
PAWLOSKI, ADAM R.;CERNOHOUS, JEFFREY J.;KASKE, KENT;VAN GORDEN, GARRETT |
分类号 |
C08J9/18;B29C44/00;C08J3/12;C08J9/04 |
主分类号 |
C08J9/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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