Adhesive cements for mending broken articles and for joining celluloid, glass, metal, cloth, wood, porcelain, fibre, leather and india-rubber surfaces all being goods not included in other classes and made wholly or principally of reaction products obtained by the polymerisation of butadiene hydrocarbons,

Compositions consisting mainly of reaction products obtained by the polymerisation of butadiene hydrocarbons sold in the form of sheets, blocks, tubes, rods and shaped pieces for use in industry; packing (steam and hydraulic), gaskets, electric insulators, ground sheets, tubular hose, stoppers for bottles, valves not being parts of machines, washers in this class all being goods made wholly or principally of reaction products obtained by the polymerisation of butadiene hydrocarbons,