Ozone treatment for composite paperboard/ polymer package

Details Ozone treatment for composite paperboard/ polymer package Ozone treatment for composite paperboard/ polymer package

1997-09-02

1999-02-02

Davis, Robert

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

425503, 425532, B29C 4904, B29C 4924

Patent

active

058661727

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.

REFERENCES:
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patent: 3207822 (1965-09-01), Makowski
patent: 3324214 (1967-06-01), Schaich
patent: 3659984 (1972-05-01), Krstolic
patent: 3771931 (1973-11-01), Fischer et al.
patent: 4117061 (1978-09-01), Jorgenso
patent: 5009939 (1991-04-01), Goldberg
patent: 5122399 (1992-06-01), Farrell et al.
patent: 5169470 (1992-12-01), Goldberg
patent: 5232653 (1993-08-01), Addeo et al.
Derwent abstract 68-08597Q of French reference 1,522,819A, Aug. 1993.
Derwent abstract 68-49014P of GB reference 1,074,663A, Aug. 1993.
Translation of Japanese reference 7-125161, printed May 16, 1995.
"Use of Ozone Can Improve Production Environment", by P. B. Sherman, Paper, Film and Converter, Oct. 1994, pp. 42-43.
"The Benefits of Ozone in Extrusion Coating", by P. B. Sherman, (internal publication) pp. 1-9, (no date).
"Some Attempts to Improve Adhesion in Extrusion Coating By Ozone Treatment", by C-J Johansson, (internal publication) dated Aug. 31, 1981, pp. 1-10.
Adhesion Promotion by Ozone Treatment, by B. H. Gregory and W. D. McIntyre, (internal publication) pp. 1-6.

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