Blow molding method, composite preform, composite container, inner label member, and plastic member
US11613063B2 · kind B2 · utility
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31References
9Claims
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Assignee
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Key dates
| Filing date | Nov 3, 2020 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Nov 3, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2439/70
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
First, a composite preform 70 including a preform 10a and a plastic member 40a in close contact with the outer surface of the preform 10a is made by preparing the preform 10a made of plastic material and arranging the plastic member 40a to surround the outer surface of the preform 10a. Subsequently, the composite preform 70 is heated and inserted in a blow molding die 50 and undergoes blow molding in the blow molding die 50, by which the preform 10a and the plastic member 40a of the composite preform 70 are inflated integrally and a composite container 10A is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.