Extrusion coated substrates with separable and removable layers

Details Extrusion coated substrates with separable and removable layers Extrusion coated substrates with separable and removable layers

1989-06-09

1991-04-23

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

15624411, 264556, 264557, 264216, 264237, 264171, 264145, 425224, B29C 4706

Patent

active

050098314

ABSTRACT:
Processes for extruding thermoplastic coatings on substrates are provided by this invention. The processes include directing a substrate between two pressure roll means wherein one of the pressure roll means has a temperature less than the melting point of the thermoplastic. Next, the processes include providing a molten curtain of thermoplastic which is then directed with a current of a fluid medium, such as compressed air, so as to cause at least a first portion of the molten curtain to contact the first pressure roll means for a time sufficient to form a thermoplastic sheet. Next, the processes include extruding at least this thermoplastic sheet with the substrate between the two pressure roll means so as to form an extruded substrate having a thermoplastic layer which is separable from the substrate.

REFERENCES:
patent: 2944586 (1960-07-01), Yanulis
patent: 3340124 (1967-09-01), Lowe et al.
patent: 3356556 (1967-12-01), Violette et al.
patent: 3402086 (1968-09-01), Smith et al.
patent: 3470055 (1969-09-01), Wade
patent: 3930923 (1976-01-01), Elliott

Affiliated with

Also associated with

Rating

Extrusion coated substrates with separable and removable layers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Extrusion coated substrates with separable and removable layers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extrusion coated substrates with separable and removable layers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1619980