Ozone treatment for composite paperboard/ polymer package
US5866172A · kind A · utility
12Cited by
10References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 2, 1997 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Sep 2, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/744
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In the manufacture of composite paperboard/polymer packages, the adhesion between the polymer component and paperboard component can be enhanced by treating the polymer film with a surface treatment, for example, ozone, before the two components are brought together. The present invention is particularly applicable to a blow molding process employing one or more paperboard blanks and a blow molded polymer film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.