Process for the production of partially crystalline polybutene-1

Details Process for the production of partially crystalline polybutene-1 Process for the production of partially crystalline polybutene-1

1975-05-27

1977-09-13

Smith, Edward J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526158, 526349, 526350, 526902, C08F 206, C08F 1008

Patent

active

040484190

ABSTRACT:
Butene-1 optionally in the presence of up to 10% by weight of propene or like comonomer, is polymerized in excess butene-1 or liquid C.sub.4 fraction at 60.degree.-120.degree. C. to form a polybutene suitable for forming transparent films by employing as the polymerization catalyst (a) TiCl.sub.3 . nAlCl.sub.3 (n = 0.2 to 0.6) and (b) a mixture of 85 - 99.9 molar percent of dialkyl aluminum monochloride and 0.1 - 15 molar percent of trialkyl aluminum.

REFERENCES:
patent: 3058970 (1962-10-01), Rust et al.
patent: 3385817 (1968-05-01), Jones
patent: 3769373 (1973-10-01), Reed et al.
Raff et al., Crystalline Olefin Polymers, Pt. I, Interscience Publ., N. Y., (1965), pp. 366-368.
Modern Plastics, Oct. 1965, vol. 43, No. 2, pp. 94-95, 175.

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