发明名称 |
Method and apparatus for producing polyimide molding |
摘要 |
The present invention provides a method and an apparatus for producing a polyimide molding which have superior productivity and accuracy of dimension. The invention particularly relates to a tubular polyimide applicable to an electrophotographic device, such as a laser-beam printer and a copying machine, or a precision driving belt required for high strength and high dimensional stability. The method of producing a polyimide molding according to the present invention comprises the steps of: mixing a solution containing polyamic acid as a main component and a chemical curing agent; providing a mixture to a mold while the mixture is still fluid; after the polyamic acid contained in the mixture is changed into a semi-formed body which develops self-supporting properties, taking out the semi-formed body from the mold, or inserting a mold for heating without taking out the semi-formed body, or removing a part of the mold; and drying solvents which are present on the surface of or inside the semi-formed body by heating the semi-formed body to produce a polyimide molding.
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申请公布号 |
US2003090031(A1) |
申请公布日期 |
2003.05.15 |
申请号 |
US20020177692 |
申请日期 |
2002.06.21 |
申请人 |
NOJIRI HITOSHI;YANAGIDA MASAMI;SEZAKI KOJI;MATSUTANI TERUO |
发明人 |
NOJIRI HITOSHI;YANAGIDA MASAMI;SEZAKI KOJI;MATSUTANI TERUO |
分类号 |
B29C37/00;B29C39/00;B29C39/36;B29C39/38;C08J5/00;(IPC1-7):B29C39/38 |
主分类号 |
B29C37/00 |
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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