Butadiene polymer composition
AssigneeSumitomo Chemical Company, Limited
InventorsTakeshi Takata, Shinichi Yachigo, Yukoh Takahashi, Manji Sasaki, Taisuke Okita
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Abstract
A butadiene polymer composition having incorporated the following stabilizers therein: A phenolic compound (I) of the formula: ##STR1## wherein R.sub.1 represents a C.sub.1 -C.sub.4 alkyl group, and a sulfur-containing compound (II) represented by the general formula, ##STR2## wherein R.sub.2 and R.sub.3 independently represent a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group, and R.sub.4 represents a C.sub.3 -C.sub.18 alkyl group, wherein the weight ratio of (I) to (II) is 1 to 0.5-10. The butadiene polymer composition of the present invention is quite effective to prevent gel formation caused by heat, especially in the absence of oxygen.
Claims4
A butadiene polymer composition characterized in that a phenolic compound (I) represented by the general formula, ##STR10## wherein R.sub.1 represents a C.sub.1 -C.sub.4 alkyl group, and a sulfur-containing compound (II) represented by the general formula, ##STR11## wherein R.sub.2 and R.sub.3 independently represent a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group, and R.sub.4 represents a C.sub.3 -C.sub.18 alkyl group, are incorporated in butadiene polymer, the weight ratio of (I) to (II) being 1 to 0.5-10.
Dependencies are inferred from the claim text.