| abstract |
The adducts (I) consist of 65-85, pref. 68-77 wt. % liq. polybutadiene (II) and 35-15, pref. 32-23 wt. % phenol (III) are obtd. by reacting 1 pt. (IIe with viscosity 200-4000 cP at 20 degrees C mol. wt. 500-3000 (determined by vapour pressure osmosis) I2 no. 400-470 and having 50-95% 1,4 cis-double bond structure, with 0.5-6 pts. (III) at 90-185 degrees C in the presence of 0.08-1% acid catalyst (w.r.t. (II) and contain =35 pref. 2-25% residual butenamer units and =50 wt. % of the bound (III) as phenyl ether. (I) are pref. used in curable elastomer compsns. contg. curing agents and accelerators, fillers, plasticisers and rubbers auxiliaries. |