EP 0125071 A3 19850918 - COATING OF PLASTICS MATERIALS
Title (en)
COATING OF PLASTICS MATERIALS
Publication
Application
Priority
GB 8311620 A 19830428
Abstract (en)
[origin: EP0125071A2] A method of and apparatus forming an enveloping coating on a web of plastics material, in particular a flattened tube of weldable plastics material having had welded thereto a plurality of spouts of weldable plastics material, wherein the web is passed through a coater (32) in the form of a bath (45) of liquid containing a coating substance and then conveyed vertically from the bath (45) to a drier (34), the rate of feed of the web and the concentration of coating substance in the liquid being selected to produce a coating of desired thickness. The method and apparatus are particularly applicable to the making of a container of a plastics material which is weldable but porous to certain gases and needs to be coated with a substance which reduces the permeability to gas, but is not itself readily susceptible to welding. After coating, the contacting internal surfaces of the two halves of a tube, which surfaces have not been coated and are still weldable, can be welded together and the web formed into a plurality of individual containers each having a spout.
IPC 1-7
IPC 8 full level
B05C 3/12 (2006.01); B05D 1/18 (2006.01); B05D 7/02 (2006.01); B65D 65/42 (2006.01)
CPC (source: EP)
B05C 3/125 (2013.01); B05D 1/18 (2013.01); B05D 7/02 (2013.01); B65D 65/42 (2013.01); B05D 7/04 (2013.01); B05D 2254/02 (2013.01)
Citation (search report)
- [X] EP 0037025 A1 19811007 - HOECHST AG [DE]
- [X] DE 1938748 A1 19710218 - LISSMANN ALKOR WERK
- [A] CH 497292 A 19701015 - PLANSEE METALLWERK [AT]
- [A] GB 2047616 A 19801203 - DB PLASTICS MFG LTD
- [A] US 3965551 A 19760629 - OSTROWSKI ARTHUR E
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0125071 A2 19841114; EP 0125071 A3 19850918; DK 212984 A 19841029; DK 212984 D0 19840427; GB 2138714 A 19841031; GB 8311620 D0 19830602; GB 8410745 D0 19840531; NO 841658 L 19841029
DOCDB simple family (application)
EP 84302802 A 19840426; DK 212984 A 19840427; GB 8311620 A 19830428; GB 8410745 A 19840426; NO 841658 A 19840426