A coating composition comprising a high molecular weight polyester, a trimellitic anhydride-polyol adduct and a curing agent is disclosed. The compositions are useful in coating food and beverage containers, particularly 2-piece cans formed by drawing and redrawing (DRD).

The present disclosure relates to a container device capable of storing and discharging liquid. A container device according to the present disclosure includes a pouch having the elastic property; a rigid container having a rigid outer case compared to the pouch and having a container opening at one side thereof; a coupling unit coupled to the container opening and for coupling an opening of the pouch with the container opening; and an air passage formed at the rigid container or the coupling unit. When the pressure is applied to the inside of the pouch and the volume of the pouch is increased, the volume of a space between the pouch and the rigid container is reduced by an increase in the volume of the pouch, such that the air in the space is discharged to the outside of the rigid container through the air passage to perform the depressurization of the space.

A coating composition is provided that is useful in coating metal substrates such as interior and/or exterior surfaces of food or beverage cans. In preferred embodiments, the coating composition is formulated using a physical blend of a preformed resin system and an alkali-soluble resin additive.

A coating composition is provided that is useful in coating metal substrates such as interior and/or exterior surfaces of food or beverage cans. In preferred embodiments, the coating composition is formulated using a physical blend of a preformed resin system and an alkali-soluble resin additive.

A synthetic resin-made multilayer bottle includes: an outer shell bottle having a shoulder section continuing from an outer opening section, and a body section continuing from the shoulder section; a synthetic resin-made inner container body having a cylindrical inner opening section provided inside the outer opening section of the outer shell bottle, and an inner container main body continuing from the inner opening section, shaped along an inner surface shape of the outer shell bottle, which deforms by an external pressure; and an air passage formed between the outer opening section and the inner opening section and which introduces outside air between the outer shell bottle and the inner container body. The inner circumferential surface of the inner opening section is provided with a small-diameter section having a diameter smaller than the inner diameter of the open end of the inner opening section.

A synthetic resin-made multilayer bottle includes: an outer shell bottle having a shoulder section continuing from an outer opening section, and a body section continuing from the shoulder section; a synthetic resin-made inner container body having a cylindrical inner opening section provided inside the outer opening section of the outer shell bottle, and an inner container main body continuing from the inner opening section, shaped along an inner surface shape of the outer shell bottle, which deforms by an external pressure; and an air passage formed between the outer opening section and the inner opening section and which introduces outside air between the outer shell bottle and the inner container body. The inner circumferential surface of the inner opening section is provided with a small-diameter section having a diameter smaller than the inner diameter of the open end of the inner opening section.

A multi-coat coating system having an undercoat composition and an overcoat composition, wherein the undercoat, overcoat or both the undercoat and overcoat contain a polymer having segments of a specified formula and are substantially free of polyhydric phenols having estrogenic activity greater than or equal to that of bisphenol S. The coating system is suitable for use on a food-contact surface of food or beverage containers.

A multi-coat coating system having an undercoat composition and an overcoat composition, wherein the undercoat, overcoat or both the undercoat and overcoat contain a polymer having segments of a specified formula and are substantially free of polyhydric phenols having estrogenic activity greater than or equal to that of bisphenol S. The coating system is suitable for use on a food-contact surface of food or beverage containers.

A coating composition includes: (a) 60 to 90 percent by weight of an active hydrogen-containing polyester having a number average molecular weight of at least 23,000, an acid value below 5 and a hydroxyl value below 10, (b) 0.1 to 10 percent by weight of a polyanhydride, and (c) 5 to 30 percent by weight of a curing agent reactive with the active hydrogens associated with (a) and (b), the percentages being based on weight of resin solids of the coating composition, where the reaction product of the coating composition forms a single coating without including a thermoplastic polymer. The coating composition is useful in coating food and beverage containers, particularly 2-piece cans formed by drawing and redrawing (DRD).

A coating composition includes: (a) 60 to 90 percent by weight of an active hydrogen-containing polyester having a number average molecular weight of at least 23,000, an acid value below 5 and a hydroxyl value below 10, (b) 0.1 to 10 percent by weight of a polyanhydride, and (c) 5 to 30 percent by weight of a curing agent reactive with the active hydrogens associated with (a) and (b), the percentages being based on weight of resin solids of the coating composition, where the reaction product of the coating composition forms a single coating without including a thermoplastic polymer. The coating composition is useful in coating food and beverage containers, particularly 2-piece cans formed by drawing and redrawing (DRD).