1,185,226. Hot melt adhesive compositions. SUN OIL CO. 15 March, 1967 [18 March, 1966], No. 12145/67. Addition to 1,116,551. Headings C3P and C3R. A thermoplastic hot melt adhesive composition comprises a homogeneous mixture of 35 to 75 weight per cent of an aromatic hydrocarbonaldehyde resin free from acetate groups and having a ring and ball softening point of 70‹ to 150‹ C. and 25 to 65 weight per cent of an ethylene-vinyl acetate copolymer containing 17 to 42 weight per cent vinyl acetate. In an example there is described a resin obtained by reacting formaldehyde with a gas oil fraction containing aromatics, which is suitable for blending with copolymers of ethylene and vinyl acetate.