Abstract: A coating for coating a substrate, includes an epoxy resin derived from an oil and cured using a curing agent including a mixture of a carboxylic acid having at least two acid functionalities and an ester.

Abstract: A composite pressure vessel includes: a body including an inner liner which includes a cylindrical portion extending along a longitudinal axis, and which is made of a thermoplastic polymer material; and an outer thermoset reinforcing structure wrapped around the body and made of a continuous fiber reinforced thermoset matrix composite, including reinforcing fibers and a thermoset matrix. The body further includes a thermoplastic reinforcement layer made of a continuous fiber reinforced thermoplastic composite, including reinforcing fiber and a thermoplastic matrix, which is adhered to the cylindrical portion of the inner liner.

Abstract: A curing agent for curing a resin, includes a mixture of an organic acid and an ester.

Abstract: A composite pressure vessel includes: a body including an inner liner which includes a cylindrical portion extending along a longitudinal axis, and which is made of a thermoplastic polymer material; and an outer thermoset reinforcing structure wrapped around the body and made of a continuous fiber reinforced thermoset matrix composite, including reinforcing fibers and a thermoset matrix. The body further includes a thermoplastic reinforcement layer made of a continuous fiber reinforced thermoplastic composite, including reinforcing fiber and a thermoplastic matrix, which is adhered to the cylindrical portion of the inner liner.

Abstract: A pressure vessel for storing a fluid at high pressure includes: a liner and a composite laminate shell coupled to an outer surface of the liner. The liner has an inner surface delineating an inner wall of a cavity and the cavity includes a dome-shaped region having a central opening. An access channel is traversing the composite laminate shell for providing an access to the cavity. The central opening is facing an entrance of the access channel. A boss connector, located or partly located within the access channel, includes an inner bore part configured for receiving a valve or a plug, and an outer neck part including a plurality of interspaced rib elements protruding into the composite laminate shell for optimizing a pressure distribution in the laminate shell.

Abstract: A pressure vessel for storing a fluid at high pressure includes: a liner and a composite laminate shell coupled to an outer surface of the liner. The liner has an inner surface delineating an inner wall of a cavity and the cavity includes a dome-shaped region having a central opening. An access channel is traversing the composite laminate shell for providing an access to the cavity. The central opening is facing an entrance of the access channel. A boss connector, located or partly located within the access channel, includes an inner bore part configured for receiving a valve or a plug, and an outer neck part including a plurality of interspaced rib elements protruding into the composite laminate shell for optimizing a pressure distribution in the laminate shell.