layers useful for isolation of acoustical and mechanical noise as antivibration elastic support for transporting shock sensitive loads etc the compositions are also useful as molded shape articles for use in medical and sport health care such use including therapeutic hand exercising grips crutch cushions cervical pillows bed wedge pillows leg rest neck cushion mattress bed pads elbow padding wrist rests for computers wheelchair cushions soft toys and the like see for example u s pat no 5 334 646 the following examples are provided to illustrate the present invention the examples are not intended to limit the scope of the present invention and they should not be so interpreted amounts are in weight parts or weight percentages unless otherwise indicated the test methods used in the examples are american society for testing materials astm test methods and the following specific method was used melt viscosity astm d 3236 ring amp ball softening point astm d 36 tensile properties astm d 412 the block copolymers of the present invention were prepared according to the process disclosed in copending patent application serial no 60 385 663 referenced above including its continuing application filed concurrently the polymers were selectively hydrogenated block copolymers where the a blocks were polystyrene blocks and the b block prior to hydrogenation was polybutadiene block the polymers are shown in table 1 below for all polymerizations half of the butadiene in step ii is added in batch with the remainder being added via a programmed addition all polymerizations are at 14 solids the coupling agent is added at 6 half lives into step ii the average mechanical properties of oiled compounds prepared from the polymer hydrogenated in the presence.