Abstract: A process for enhancing the gas barrier properties of a composite laminate material whilst maintaining adequate bond strength, in which a gas barrier coating comprising a clay dispersion and a polymer solution or dispersion is positioned between two flexible plastics films using an adhesive, wherein a coating is applied to a first flexible polymer film at a coating weight (D), an adhesive is applied to either or both of the coated side of the first film or to a second polymer film and adhering the first and second films together to provide a material in which: (A/B). (C/D)>200, and in which: A/B>75; C>1.0; and D<1.5; wherein: A=Oxygen Transmission Rate for the laminate at 23 0C and 50% RH without the coating; B=Oxygen Transmission Rate for the laminate at 23 0C and 50% RH with the coating; C=Bond Strength in N/15 mm after the adhesive has fully cured; D=Coating Weight in g/m2 (dry).

Abstract: In order to maintain adequate bond strength of a composite in which a gas barrier coating comprising a clay dispersion and a polymer solution or dispersion of a PVA and/or EVA is positioned between two flexible plastics films using an adhesive, it is necessary that the clay dispersion and the polymer solution or dispersion should be kept separate until shortly before they are to be applied.

Abstract: A process for enhancing the gas barrier properties of a composite laminate material whilst maintaining adequate bond strength, in which a gas barrier coating comprising a clay dispersion and a polymer solution or dispersion is positioned between two flexible plastics films using an adhesive, wherein a coating is applied to a first flexible polymer film at a coating weight (D), an adhesive is applied to either or both of the coated side of the first film or to a second polymer film and adhering the first and second films together to provide a material in which: (A/B).(C/D)>200, and in which: A/B>75; C>1.0; and D<1.5; wherein: A=Oxygen Transmission Rate for the laminate at 23 OC and 50% RH without the coating; B=Oxygen Transmission Rate for the laminate at 23 OC and 50% RH with the coating; C=Bond Strength in N/15 mm after the adhesive has fully cured; D=Coating Weight in g/m2 (dry).

Abstract: A coating composition comprising a silylated polyvinyl alcohol and colloidal silica in an aqueous vehicle, where the solids content of the composition is not greater than 7.5% w/w, the silyl monomer content of the silylated polyvinyl alcohol is not greater than 3.0% (based on the monomers forming the silylated polyvinyl alcohol), the silylated polyvinyl alcohol comprises at least 50% w/w of the solids content of the composition, and the average particle size of the colloidal silica is from 5 to 80 nm, may be coated on a substrate with a layer of an inorganic compound to form a gas barrier lamella.

Abstract: The problem of misting in printing inks may be cured by using as the oligomer in an energy-curable printing ink a radiation-curable acrylate-modified aminoamide resin which is the Michael addition product of a polyol ester having at least two (meth)acrylate ester groups with an aminoamide thermoplastic polymer, the aminoamide thermoplastic polymer being the reaction product of a polyamine with an acid component which comprises a polymerised unsaturated fatty acid and a C2-C22 fatty acid, from 1 to 25% of the acid functionality forming the aminoamide polymer being said C2-C22 fatty acid, the resin being liquid at 25° C.