Methods of overmolding softer material with harder material and moisture tight container assemblies made by the methods
US11331836B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2018 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Apr 16, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2543/00972
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of over-molding materials includes: providing a first material in a groove in a first portion of a mold such that only a single surface of the first material is exposed to a vacant portion of the mold; providing, via an injection molding process, a second material in a liquid form in the vacant portion of the mold adjacent to, and in engagement with, the first material; and allowing the second material to solidify and become directly coupled to the first material, thus forming a single component. The second material has one or both of a greater hardness when solidified than the first material and/or a higher melting temperature than the first material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.