Apparatuses and devices for preventing heat transfer through fluids contained in a fluid container, a device of which includes an insulation system including a fluid container section for containing a liquid, a detachable insulation sleeve section for preventing heat transfer therethrough thereby maintaining temperature of the fluid contained within the fluid container, a lid section for preventing spillage of contents from the fluid container section, and optionally a straw for accessing those contents.

Methods of forming an article from a molten plastic composition comprising a polymer and a blowing agent. The methods include injecting the molten plastic composition into a mould, allowing the plastic composition to form a first solid skin adjacent to an in contact with a first cavity-forming surface of the mould and a second solid skin adjacent to and in contact with a second cavity-forming surface of the mould, and then opening the mould before the molten plastic composition between the first and second solid skins in at least one portion of the circumference of a region of the mould cavity defining an annular cross-section of the cavity has solidified.

An insulated container including a container assembly and a gel assembly. The container includes a first sleeve, second sleeve, and outer sidewall. The container includes a cavity to receive a beverage therein. The second sleeve extends about the outer circumference of the first sleeve. A spacing is defined between the first sleeve and the second sleeve. A gel layer of the gel assembly is received within the spacing. The gel layer, when the container is cooled, is cooled and provides cold energy to the beverage held within the container. Between the second sleeve and the outer sidewall exists a vacuum spacing. The vacuum spacing provides vacuum insulation to ensure that heat does not reach the first sleeve through direct contact when being cooled by the gel layer. Allowing the beverage to be cooled for extended periods of time within the insulated container.

A system for manipulating heat transfer includes a thermal sleeve, a vessel and a lid. The thermal sleeve includes a first material and a second material. The vessel includes an outer wall disposed about an inner wall, the inner wall defining a reservoir configured to contain a liquid and the inner wall and outer wall defining a gap therebetween. The lid is configured to open to facilitate adding of the liquid to the reservoir. The thermal sleeve is configured to be positioned within the gap.

In 2021, major industrial countries announced a 50% carbon reduction in 2030. Disposable paper cups with plastic inner membranes and disposable plastic cups are banned globally are required for recycling and reuse. Double-layer near-vacuum metal foil cups with cold and warm preservation functions, also for keeping cold and warm preservation are Low-carbon market needs.

The utility model relates to drinking vessels, more specifically to a disposable container for hot and cold beverages. The technical result lies in the creation of a disposable cup made of a multi-layered material based on foamed primary polyethylene terephthalate and/or secondary polyethylene terephthalate (obtained from polyethylene terephthalate waste), which is easy to produce and fit for use. The essence of the invention consists in that a disposable cup has a lateral wall, in the form of a rotation body, and a base, which are fastened to each other, wherein a flanged edge is formed in the upper part of the lateral wall, the lateral wall and the base are multi-layered and comprise a layer of foamed polyethylene terephthalate with a density of from 100 kg/m.sup.3 to 900 kg/m.sup.3 and a characteristic viscosity of from 0.5 dl/g to 1.0 dl/g, which is connected to a polyethylene layer by fusion.

A multi-lid heat-insulating cup is provided, including a heat-insulating cup body with an accommodating cavity and a cup lid detachably connected to the heat-insulating cup body, the cup lid being provided with a drinking mouthpiece and a drinking mouthpiece lid being disposed at the drinking mouthpiece, where an inner top surface of the cup lid is provided with a ring-shaped sealing gasket; and with the cup lid covering an opening end of the heat-insulating cup body, the sealing gasket is capable of sealing both the opening end of the heat-insulating cup body and a top periphery of a pop can placed in the accommodating cavity, and a beverage outlet of the pop can is in communication with the drinking mouthpiece. The cup lid which can cover an opening of the heat-insulating cup body is disposed to increase a heat insulation effect.

A hollow article for use as a beverage cup, or as a container, the hollow article having an annular sidewall and a base wall defining a central hollow cavity, a top rim of the sidewall and a bottom end of the sidewall, wherein the annular sidewall has a plastics material composed of a sandwich structure of inner and outer skins and an integral expanded cellular foam layer therebetween, wherein at least a portion of the annular sidewall has an inner surface of the sandwich structure inclined at a first acute angle to a longitudinal axis of the hollow article and an opposite outer surface of the sandwich structure inclined at a second acute angle to the longitudinal axis of the hollow article, wherein the second acute angle is greater than the first acute angle.

The invention relates to a double-walled cup (1) which comprises an inner and an outer wall as well as a cup opening on its upper end and a bottom part on its lower end. The outer wall is substantially produced from paper, cardboard or the like. The object of the invention is to improve said double-walled cup (1) in such a manner that it can be more rapidly and simply produced and assembled and to reduce the structural stability of the double-walled cup while maintaining its corresponding thermal insulating properties. For this purpose, the inner cup providing the inner wall is inserted into the outer cup (3) providing the outer wall and is secured therein or thereto in an especially detachable manner. The inner cup (2) is produced from an at least fluid-tight plastic material.

Insulated packaging is provided including an inner substrate and an outer substrate attached to the inner substrate to form an air gap therebetween. An expandable material including expandable microspheres is provided with the expandable material disposed between the inner substrate and the outer substrate. An adhesive material different than the expandable material is disposed between the inner substrate and the outer substrate to attach the inner substrate to the outer substrate. A method for forming the insulated packaging is also provided.