Method for producing transparent block copolymer resin from...

Details Method for producing transparent block copolymer resin from... Method for producing transparent block copolymer resin from...

C - Chemistry, Metallurgy

08

F

400/2047

C08F 297/04 (2006.01)

Patent

CA 1050191

METHOD FOR PRODUCING TRANSPARENT BLOCK COPOLYMER RESIN ABSTRACT OF THE DISCLOSURE By block-copolymerizing a vinyl aromatic compound and a conjugated diene in a hydrocarbon solvent with an organolithium compound as initiator, there is obtained a block copolymer which comprises in the molecule three blocks of homopolymerized vinyl aromatic compound, randomly copolymerized vinyl aromatic compound and conjugated diene, and homopolymerized diene, respec- tively. The resulting block copolymer is transparent and excellent in mechanical properties, and is suitable for use in the manufacture of sheeting, film , and various molded articles.

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