发明名称 |
METHOD OF PREPARING POROUS PREPOLYMER PELLETS |
摘要 |
A method of preparing cellular pellets from a prepolymer comprising a blowing agent, the method comprising the steps of: a) extruding the prepolymer through a die, the die maintained at conditions such that the blowing agent remains in the condensed phase in the prepolymer prior to emerging from the die, and b) upon emergence of the prepolymer through the die, substantially simultaneously cooling the prepolymer by contacting the prepolymer with a cooling agent and cutting the prepolymer; the conditions outside the die being maintained such that the blowing agent vaporizes in the prepolymer to form pores.
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申请公布号 |
WO0110622(A8) |
申请公布日期 |
2001.06.14 |
申请号 |
WO2000US15921 |
申请日期 |
2000.06.09 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
DAY, JAMES;ACHARYA, HARISH, RADHAKRISHNA |
分类号 |
C08J9/02;B29C44/34;C08J9/14;C08J9/16;C08J9/26;(IPC1-7):C29C44/34;C08J9/28 |
主分类号 |
C08J9/02 |
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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