EP 0794861 A4 19980812 - HEAT SEALABLE MULTILAYER FILM CONTAINING POLYVINYL ALCOHOL LAYER
Title (en)
HEAT SEALABLE MULTILAYER FILM CONTAINING POLYVINYL ALCOHOL LAYER
Title (de)
EINE POLYVINYLALKOHOLSCHICHT ENTHALTENDER HEISSSIEGELBARER MEHRSCHICHTFILM
Title (fr)
FILM MULTICOUCHE THERMOSOUDABLE COMPRENANT UNE COUCHE D'ALCOOL POLYVINYLIQUE
Publication
Application
Priority
- US 9515659 W 19951204
- US 34839594 A 19941202
Abstract (en)
[origin: WO9616799A1] A multilayer heat sealable film comprises: (a) a polyolefin film substrate layer; (b) a heat sealable acrylic polymeric coating; and (c) a layer of poly(vinyl alcohol) (PVOH) between (a) and (b). The film exhibits excellent oxygen and aroma barrier, and low minimum seal temperature and can be prepared by i) providing an oriented polypropylene film core layer; ii) coating said oriented polypropylene film core layer with PVOH on at least one side of said core layer to provide a PVOH coated oriented polypropylene film; and iii) coating the product of ii) with acrylic on said side coated with PVOH.
IPC 1-7
B32B 7/12; B32B 27/08; B32B 27/30; B32B 27/32; B32B 27/38; B32B 27/40; C08F 20/06; C08F 20/18; C08F 220/06; C08F 220/18
IPC 8 full level
B32B 27/30 (2006.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01); C08J 7/04 (2006.01)
CPC (source: EP US)
B32B 7/12 (2013.01 - US); B32B 27/08 (2013.01 - EP US); B32B 27/306 (2013.01 - US); B32B 27/32 (2013.01 - US); C08J 7/042 (2013.01 - EP); C08J 7/043 (2020.01 - EP US); C08J 7/044 (2020.01 - EP US); C08J 7/048 (2020.01 - EP US); C08J 7/052 (2020.01 - EP US); B32B 2307/31 (2013.01 - US); B32B 2307/518 (2013.01 - US); B32B 2307/7242 (2013.01 - US); B32B 2323/10 (2013.01 - US); B32B 2329/04 (2013.01 - US); B32B 2439/70 (2013.01 - US); C08J 2323/12 (2013.01 - EP); C08J 2429/04 (2013.01 - EP); C08J 2433/06 (2013.01 - EP)
Citation (search report)
- [DX] EP 0461772 A2 19911218 - MOBIL OIL CORP [US]
- [A] US 5017430 A 19910521 - CHU SHAW-CHANG [US], et al
- See references of WO 9616799A1
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL
DOCDB simple family (publication)
WO 9616799 A1 19960606; AU 4291196 A 19960619; AU 692026 B2 19980528; CA 2203915 A1 19960606; EP 0794861 A1 19970917; EP 0794861 A4 19980812; JP H10510487 A 19981013
DOCDB simple family (application)
US 9515659 W 19951204; AU 4291196 A 19951204; CA 2203915 A 19951204; EP 95941511 A 19951204; JP 51910496 A 19951204