C - Chemistry – Metallurgy – 08 – C
Patent
C - Chemistry, Metallurgy
08
C
402/364, 402/467
C08C 19/22 (2006.01) C08F 136/14 (2006.01) C08K 5/32 (2006.01)
Patent
CA 1096546
ABSTRACT OF THE DISCLOSURE Modified and stabilized synthetic cis-1,4 polyisoprene is a product of chemical interaction between synthetic cis- -1,4 polyisoprene containing no less than 95 percent of cis- -1,4 units and 0.05 to 1 mass percent of n-nitrosodiphenyl- amine. The proposed method of making this product comprises polymerization of isoprene in hydrocarbon solvent in the presence of Ziegler-Natta catalyst, the addition to the polymerization mass of 0.05 to 1 mass percent of n-nitro- sodiphenylamine, and degassing and drying of the rubber thus produced. The product possesses improved properties, including good stability in the course of storage and machining. Un- vulcanized rubber mixes on the basis of this product are marked by a high adhesion strength, whereas the vulcaniza- tes have splendid elastic hysteresis and fatigue characte- ristics. The quality of the novel product is in no way in- ferior to that of natural rubber.
262164
Bataeva Ljubov P.
Belgorodskaya Olga I.
Belgorodsky Izrail M.
Bolkhovets Basia M.
Davydova Larisa M.
Bataeva Ljubov P.
Belgorodskaya Olga I.
Belgorodsky Izrail M.
Bolkhovets Basia M.
Davydova Larisa M.
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