Patent ID: 8911841

Claim:
A packaging pouch made of a flexible mono or multilayer film for packaging viscous jelly and/or gravy matrix food, in which a thermo cycle such as retort, pasteurisation, hot filling or aseptic conditions is applicable, wherein the surface of a layer of the film forming the pouch inner walls or a surface coating on the film in contact with food comprises a substance having the effect that the surface tension of the layer or the surface coating on the layer is 24 mN/m or less and the pouch inner walls in contact with food exhibit easy flow properties, wherein the substance comprises a graft polymer having a polyolefin based acrylic copolymer backbone with the general structure [CH 2 CRCOO(CH 2 ) p CH 3 ] x [CH 2 CR 1 COO(CH 2 ) 2 (CF 2 ) q CF 3 ] y with R═H, CH 3 ; R 1 ═H, CH 3 ; 0<p<35; 0<q<15; 40>y/x>0.03 or a graft polymer having a polysiloxane based acrylic copolymer backbone with the general structure [CH 2 CRCOO(CH 2 ) p (SiO(CH 3 ) 2 ) m (SiO(CH 3 ) 3 )] x [CH 2 CR 1 COO(CH 2 ) 2 (CF 2 ) q CF 3 ] y with R═H, CH 3 ; R 1 ═H, CH 3 ; 1<p<4; 0<q<15; 1<m<50; 40>y/x>0.03 or a graft polymer having a polysiloxane/polyolefin based copolymer backbone with the general structure [CH 2 CRCOO(CH 2 ) p (SiO(CH 3 ) 2 ) m (SiO(CH 3 ) 3 )] x [CH 2 CR 1 COO(CH 2 ) p CH 3 ] y with R═H, CH 3 ; R 1 ═H, CH 3 ; 1<p<4; 0<q<15; 1<m<50; 40>y/x>0.03 or a block structure with the extended formula CH 3 (CH 2 ) 12 CH 2 COO(CF 2 ) 8 CONHNHCOO(CF 2 ) 8 COONHNHCO(CF 2 ) 8 COOCH 2 (CH 2 ) 12 CH 3 with the general structure or a micro-dispersion of ultra high molecular weight siloxane polymers.