Abstract: The use of a colloidal silica having a specific surface area greater than 300 m2/g in a gas barrier coating additionally comprising polyvinyl alcohol and/or ethylene vinyl alcohol copolymer and/or a silylated derivative thereof improves wet bond strength.

Abstract: The use of a colloidal silica having a specific surface area greater than 300 m2/g in a gas barrier coating additionally comprising polyvinyl alcohol and/or ethylene vinyl alcohol copolymer and/or a silylated derivative thereof improves wet bond strength.

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: A photo-degradable chewing gum base composition including an elastomer; and a block copolymer of vinyl acetate and methylphenylsilane having a structure of formula (I)— wherein m and p are integers in the range of 1 to 500, and n is an integer in the range of 2 to 100, is disclosed. The block copolymer facilitates environmental degradation of improperly disposed chewing gum cuds. Also described is a method of preparing a photo-degradable chewing gum composition.

Abstract: A degradable chewing gum composition including about 5 to about 90 weight percent of a water-insoluble gum base and about 0.1 to about 15 weight percent of an alternating copolymer of maleic anhydride and a C2-C10 alkene is described. The alternating copolymer facilitates environmental degradation of improperly disposed chewing gum cuds. Also described is a method of preparing the chewing gum composition.

Abstract: A photo-degradable chewing gum base composition including an elastomer; and a block copolymer of vinyl acetate and methylphenylsilane having a structure of formula (I)— wherein m and p are integers in the range of 1 to 500, and n is an integer in the range of 2 to 100, is disclosed. The block copolymer facilitates environmental degradation of improperly disposed chewing gum cuds. Also described is a method of preparing a photo-degradable chewing gum composition.

Abstract: A gum base comprising: a) a hydrophilic precursor component comprising hydrolysable units; and b) a copolymer of a hydrophilic monomer with a second monomer selected from vinyl acetate, isobutylene, isoprene, butyl rubber or styrene butadiene. This chewing gum base contributes to the ability of the chewing gum compositions and chewing gum products to degrade over time after chewing by imparting the chewing gum with increased hydrophilic properties.

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).