Abstract: There is described an acrylic polyester resin, obtainable by grafting an acrylic polymer with a polyester material. The polyester material is obtainable by polymerizing (i) a polyacid component, with (ii) a polyol component, including—2,2,4,4-tetraallcylcyclobutane-1,3-diol. One of the polyacid component or the polyol component comprises a functional monomer operable to impart functionality on to the polyester resin, such that an acrylic polymer may be grafted with the polyester material via the use of said functionality. Also provided is an aqueous coating composition comprising the acrylic polyester resin and a metal packaging containing coated with the composition.

Abstract: Transient Damage Strategy (TDS), for waterborn cargo and passenger vessels, functions to prevent or to greatly mitigate pollution of waters, and to reduce hazarding of stability and buoyancy of ships subsequent to underwater penetration of tanks and other water, oil, and air tight spaces. The TDS process, which incorporates the use of existing ship's systems and is comprised of common "off the shelf" components, with the exception of one valve, herein referred to as a "ventlock" valve, effectively functions to prevent liquid tank contents, such as oil, from escaping outboard through underwater hull penetration, to prevent water intrusion into empty spaces through underwater hull penetration, and to enable transfer of uncontaminated oil or other contents from damaged tanks to undamaged tanks.