Process and equipment for coating a base with a thermoplastic

Details Process and equipment for coating a base with a thermoplastic Process and equipment for coating a base with a thermoplastic

B - Operations, Transporting

32

B

154/39, 32/43, 1

B32B 27/00 (2006.01) B29C 43/22 (2006.01)

Patent

CA 1038246

A B S T R A C T A process for the coating of a substrate, consisting of paper or paper lined with a metal foil, with polyethylene in which the polyethylene is extruded to a thin film which, while it is still warm, is brought into contact with the sub- strate and, with simultaneous cooling to a temperature below the softening temperature of the polyethylene, is pressed together with the substrate by passing the substrate and the extruded polyethylene film through co-operating rolls. At least one roll which is brought into contact with the polyethy- lene coating is moistened on its rolling surface with a liquid having a critical surface tension below 73 dyne/cm and a boiling point below 100°C, and consisting of a mixture of water and between about 10% and about 50% ethyl alcohol, whereby an unin- terrupted liquid layer is applied to the whole contact surface of the roll or rolls with the polyethylene coating.

218647

Affiliated with

Also associated with

Rating

Process and equipment for coating a base with a thermoplastic does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process and equipment for coating a base with a thermoplastic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and equipment for coating a base with a thermoplastic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1123951