Peelable composite thermoplastic sealants in packaging films
US7871697B2 · kind B2 · utility
3Cited by
72References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2008 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Feb 14, 2028 |
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.