Composite preform, method for manufacturing same, composite container, method for manufacturing said composite container, and heat shrinkable plastic member
US11213992B2 · kind B2 · utility
2Cited by
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34Claims
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Key dates
| Filing date | Jun 16, 2017 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Mar 14, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1352
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing a composite preform is provided, including preparing a preform that is formed from a plastic material, preparing a tubular heat shrinkable plastic member that is longer than the preform and has a margin for thermocompression bonding at one end, inserting the preform into the plastic member having the plastic member undergo thermal shrinkage by heating the preform and the plastic member, and bonding the margin of the plastic member by thermocompression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.