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RUBBER COMPOSITIONS CONTAINING A HEAT HARDENABLE PHENOLIC RESIN BASED ON A MIXTURE OF A DIHYDROXY DIPHENYL ALKANE AND A PARA-SUBSTITUTED ALKYL PHENOL
RUBBER COMPOSITIONS CONTAINING A HEAT HARDENABLE PHENOLIC RESIN BASED ON A MIXTURE OF A DIHYDROXY DIPHENYL ALKANE AND A PARA-SUBSTITUTED ALKYL PHENOL