Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1977-07-11
1979-11-20
Smith, Edward J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
252429B, 25229C, 526153, 526351, 526906, C08F 402, C08F 1006
Patent
active
041751710
ABSTRACT:
A catalyst for polymerizing .alpha.-olefins composed of a titanium composition formed by heating a co-comminuted mixture of a magnesium halide and a complex of an aluminum halide and a carboxylic acid ester of the formula R.sup.1 COOR.sup.2, with titanium tetra-chloride; and an organic aluminum compound of the formula AlR.sup.3 mH.sup.3 --m; and optionally added thereto at least one component selected from an alkyl aluminum halide of the formula AlR.sup.4 nX.sub.3 --n; a carboxylic acid ester of the formula R.sup.5 COOR.sup.6 ; and its complex formed with an aluminum halide; is disclosed.
REFERENCES:
patent: 4028481 (1977-06-01), Shiomura et al.
patent: 4069169 (1978-01-01), Toyoda et al.
Ito Akira
Iwao Tetsuya
Iwata Kenji
Osawa Masanori
Sasaki Heizo
Mitsui Toatsu Chemicals Inc.
Smith Edward J.
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