Peelable composite thermoplastic sealants in packaging films
US9309027B2 · kind B2 · utility
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82References
12Claims
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Assignee
Inventors
Key dates
| Filing date | Jun 7, 2013 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Nov 19, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2826
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A peelable sealing structure includes a sealing layer and one or more optional additional layers. The peelable sealing structure includes a sealing surface that is formable into a peelable seal upon contact with a sealing substrate at all temperatures in a peelable seal temperature range. Moreover, the peelable sealing structure comprises a thermoplastic polymer and an additive dispersed within at least a portion of the thermoplastic polymer with the peelable sealing structure defining the sealing surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.