Closure for a product-retaining container
US12343917B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2017 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Jul 24, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2499/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A closure for a product-retaining container is constructed for being inserted and securely retained in a portal-forming neck of said container. The closure comprises: a plastic material comprising at least one thermoplastic polymer; a plurality of particles comprising cork; and at least one processing aid. Optionally, one or more additives and/or blowing agents may be included. A method for manufacturing a closure comprises intimately combining multiple components, heating the resulting composition to form a melt, forming a closure precursor from the melt, and optionally cutting and/or finishing the closure precursor to form the closure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.