Biodegradable Film with Pressure-Sensitive adhesive layer

US 20l20045604Al (19) United States (12) Patent Application Publication (10) Pub. No.: US 2012/0045604 A1 Gavel et al. (43) Pub. Date: Feb. 23, 2012 (54) BIODEGRADABLE FILM WITH (30) Foreign Application Priority Data PRESSURE-SENSITIVE ADHESIVE LAYER Mar. 15, 2001 (GB) ................................. .. 0106410.4 (75) Inventors: Thierry Gavel, Brussels (BE); Publication Classification Wayne Middleton, Wigton (GB); (51) Int CL Veli Nasib, ESPOO Gianpaolo Fa1°“i=Bmsss1s(BE) B32B 23/00 (2006.01) B32B 27/00 (2006.01) (73) Assignee: INNOVIA FILMS LIMITED, 3323 3 7/15 (2006.01) wigton (GB) B32B 15/00 (2006.01) C09] 133/04 (2006.01) . C09] 133/08 (2006.01) (21) Appl. No.. 13/205,128 B32B 33/00 (2006.01) C09] 103/02 (2006.01) (22) Filed: Aug- 8, 2011 (52) U.s. Cl. .. 428/41.8; 428/343; 428/354; 428/355 AC; 428/355 CP; 428/344; 156/244.11 Related U.S. Application Data (57) ABSTRACT (60) COI1tiI111ati0I1-ill-P311 Of application N0. 12/222,498, A multi-layer, biodegradable film is disclosed. The multi- filed on Aug. 11, 2008, which is a division of applica- tion No. 10/471,694, filed on May 24, 2004, now Pat. No. 7,687,125, filed as application No. PCT/EP02/ 02726 on Mar. 13, 2002. layer, biodegradable film contains a biodegradable core layer and a biodegradable pressure sensitive adhesive layer. The film may further contain a biodegradable, printable layer and a release liner. 16 15 an\\\\\\\\\\\\\\\\\\\\\\\\x 12 1 4 ’\x Patent Application Publication Feb. 23, 2012 Sheet 1 of 5 US 2012/0045604 A1 12 14 1____,6‘~' FIG. 1 16 15 mx\m‘'§:.\.\\u.\'‘&m\m'x\u\&\K\‘%'a.V&1 ‘'2 14 FIG. 2A Patent Application Publication Feb. 23, 2012 Sheet 2 of 5 US 2012/0045604 A1 18 15 16 12 *5 .~t:*3.::,'-2 i:=i-.12>ss*:3t?.:¥&':éré.:35§i:é‘1f.3 .i‘::::27;;«§: