Abstract: A tire has on its inner surface on elastomeric air barrier coating, which is formed by photocuring a composition comprising: (a) an end capped prepolymer (MW 2500-10,000) formed by reacting a polyester diol (MW750-1500) with a diisocyanate, and reacting the resulting diisocyanate terminated prepolymer with an end group forming compound; (b) one or more monofunctional addition polymerizable monomers; and (c) a photoinitiator or mixture thereof. In preferred embodiments, the polyester diol is hydroxyl terminated ethylene adipate, the diisocyanate is TDI, and the end group forming compound is 2-hydroxyethyl methacrylate (HEMA). The monofunctional monomer may be or include N-vinyl-pyrrolidone (NVP). The air barrier coating has high elongation, low modulus, good heat aging resistance and good adhesion to the tire in addition to low oxygen permeability.

Abstract: This invention specifically relates to blends of grossly incompatible polymers (polyethylene terephthalate and rubber) which are blended with a dispersion stabilizer (compatibilizing agent) to obtain optimum properties, particularly impact strength. The dispersion stabilizers disclosed herein are alkenyl succinic anhydrides wherein said alkenyl group contains from 8 to 30 carbon atoms; alkyl succinic anhydrides wherein said alkyl group contains from 8 to 30 carbon atoms; and dimers, oligomers, and polymers of the structural formula: ##STR1## wherein x and y are integers, wherein R and Z can be the same or different, wherein R and Z are selected from the group consisting of alkyl moieties containing from 1 to 30 carbon atoms, alkenyl moieties containing from 2 to 30 carbon atoms, and hydrogen, wherein the total number of carbon atoms in R and Z is between 8 and 30, and wherein the indicates that the repeat units can be distributed in any order.

Abstract: A method is provided which comprises preparing a drawn, coated polyester yarn by applying an aqueous emulsion of an epoxy resin and spin finish fiber treatment oil to spun or drawn yarn, said oil is comprised of a mixture of pentaerythritol tetraester (C.sub.12 -C.sub.14) fatty acid, polyoxy ethylene nonyl phenol and oleyl diethyl imidazoleimium sulfate.