EP 0666883 A4 19970219 - SULPHUR DIOXIDE FILM.
Title (en)
SULPHUR DIOXIDE FILM.
Title (de)
SCHWEFELDIOXIDESCHICHT.
Title (fr)
FILM LIBERANT DE L'ANHYDRIDE SULFUREUX.
Publication
Application
Priority
- AU 9300562 W 19931029
- AU PL563192 A 19921030
Abstract (en)
[origin: WO9410233A1] Single and multi-layer materials and polymeric films for use in packaging of produce are disclosed. The material and polymeric films incorporate a sulphur dioxide-liberating compound(s) and one or more of the following additives: an acid compound(s); a hygroscopic compound(s); a polymer(s) which degrades to produce an acid; a compound(s) which becomes or generates an acid or acidic gas in a humid environment; wherein the amount and identity(ies) of the additive(s) may be selected to provide a predetermined, controlled rate of sulphur dioxide liberation.
IPC 1-7
C08K 3/00; C08K 3/30; C08K 5/00; C08K 5/41; C08K 5/42; C08K 13/02; C08L 57/00; C08L 1/12; C08L 27/06; C08L 29/04; B32B 27/18
IPC 8 full level
A23B 4/16 (2006.01); A23B 4/20 (2006.01); A23B 7/152 (2006.01); A23L 3/00 (2006.01); A23L 3/3445 (2006.01); B32B 27/00 (2006.01); B32B 27/18 (2006.01); B65D 65/42 (2006.01); B65D 81/20 (2006.01); C08K 3/28 (2006.01); C08K 3/30 (2006.01); C08K 5/09 (2006.01); C08L 1/00 (2006.01); C08L 1/08 (2006.01); C08L 1/12 (2006.01); C08L 27/06 (2006.01); C08L 29/04 (2006.01); C08L 101/00 (2006.01)
CPC (source: EP US)
A23B 4/16 (2013.01 - EP); A23B 7/152 (2013.01 - EP); A23L 3/3445 (2013.01 - EP); B32B 23/08 (2013.01 - US); B32B 27/08 (2013.01 - US); B32B 27/18 (2013.01 - EP US); B32B 27/304 (2013.01 - US); B32B 27/306 (2013.01 - US); B32B 27/32 (2013.01 - US); C08K 3/30 (2013.01 - EP); C08L 1/12 (2013.01 - EP); B32B 2553/00 (2013.01 - US)
Citation (search report)
- [X] US 4384972 A 19830524 - NAKAMURA HACHIRO [JP], et al
- [DX] EP 0351636 A2 19900124 - CLEMES DENNIS CHARLES
- [A] GB 1259100 A 19720105
- [A] EP 0087240 A1 19830831 - SMITH & NEPHEW ASS [GB]
- See references of WO 9410233A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 9410233 A1 19940511; CA 2147872 A1 19940511; EP 0666883 A1 19950816; EP 0666883 A4 19970219; JP H08502772 A 19960326; NZ 257311 A 19960227
DOCDB simple family (application)
AU 9300562 W 19931029; CA 2147872 A 19931029; EP 93923980 A 19931029; JP 51047193 A 19931029; NZ 25731193 A 19931029