Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Reexamination Certificate
2011-03-22
2011-03-22
Wollschlager, Jeffrey (Department: 1742)
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
C264S132000, C264S146000, C264S173120, C264S173140, C264S209400, C264S234000, C264S259000, C264S514000, C264S515000, C156S244130, C428S035200, C428S035700
Reexamination Certificate
active
07910032
ABSTRACT:
The present invention provides an exemplary process for manufacturing a flexible packaging laminate into a pouch for containing liquids such as edible oil. The process includes taking granules of polypropylene and medium density polyethylene in a proportion of 1-1.5:1.5-2.5, —melting the granules at 200-230 degrees Celsius in a 3 layer blown film extruder to form a co-extruded film, —printing the film by a Rotogravure printing technique at 40-60 degrees Celsius, —laminating the printed film with a conventional 5 layer co-extruded nylon film at 60-80 degrees Celsius, —curing the laminated film at 35-45 degrees Celsius for at least 2 days, —and slitting the cured laminated film to a desired size for using with a Form Fill Seal machine (FFS Machine) at 160-180 degrees Celsius, to make pouches that hold liquids, such as edible oil.
REFERENCES:
patent: 4578316 (1986-03-01), Clauson et al.
patent: 4995927 (1991-02-01), Garrett
patent: 6117465 (2000-09-01), Falla
patent: 6500559 (2002-12-01), Hofmeister et al.
patent: 6667082 (2003-12-01), Bamore et al.
patent: 6794021 (2004-09-01), Bader
patent: 6979495 (2005-12-01), Keung et al.
patent: 7252878 (2007-08-01), Watanabe et al.
patent: 2002/0164470 (2002-11-01), Bader
patent: 2004/0146226 (2004-07-01), Wolak et al.
patent: 2005/0031233 (2005-02-01), Varanese et al.
patent: 2370808 (2002-07-01), None
Derwent Abstract Accession No. 2004-575279/56, JP2004216740 A (Dainippon Printing Co Ltd) Aug. 5, 2004.
International Search Report of PCT/IN05/00422.
Caesar Rivise Bernstein Cohen & Pokotilow Ltd.
Cargill India Private Limited
Wollschlager Jeffrey
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