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US 2020/0269477 A1Published application
Shaping material, resin shaped product, cosmetic container, semiconductor container, and method of producing semiconductor container
AssigneeZeon Corporation
InventorsShinsuke MIYAZAWA, Satoshi YAMADA, Ayako KATO, Eito ARIURA
Life of this patent
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Abstract
A shaping material contains a crystalline alicyclic structure-containing resin. More specifically, the crystalline alicyclic structure-containing resin in the shaping material has a melting point of 200° C. or higher, and content of chlorobenzene-soluble components in the shaping material is 1,000 ppm or less as an o-dichlorobenzene-equivalent value based on gas chromatography analysis with o-dichlorobenzene as a standard substance.
Claims9
A shaping material comprising a crystalline alicyclic structure-containing resin, wherein
- the crystalline alicyclic structure-containing resin has a melting point of 200° C. or higher, and
- content of chlorobenzene-soluble components in the shaping material is 1,000 ppm or less as an o-dichlorobenzene-equivalent value based on gas chromatography analysis with o-dichlorobenzene as a standard substance.
A method of producing a semiconductor container comprising:
- a purification step of holding a target resin including a crystalline alicyclic structure-containing resin having a melting point Tm (° C.) of 200° C. or higher in a purification temperature range of not lower than 140° C. and not higher than 300° C. for not less than 0.5 hours and not more than 100 hours to obtain a purified target resin;
- and
- a shaping step of heating a pre-crystallization shaping material including the purified target resin to a higher temperature than the melting point Tm (° C.) to melt the pre-crystallization shaping material and subsequently shaping the pre-crystallization shaping material while holding the pre-crystallization shaping material in a crystallization temperature range of not lower than (Tm−140°) C. and lower than the melting point Tm (° C.) to cause crystallization.
Dependencies are inferred from the claim text.