Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1977-01-27
1978-09-12
Smith, Edward J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
252429C, 526119, 526125, 526352, C08F 402, C08F 1002
Patent
active
041139330
ABSTRACT:
A process for the manufacture of homopolymers and copolymers of .alpha.-monoolefins of 2 to 6 carbon atoms by polymerizing the monomer or monomers by means of a Ziegler catalyst system comprising (1) a catalyst component containing titanium and (2) a particular compound of aluminum, magnesium or zinc, the atomic ratio of titanium from catalyst component (1) to metal (Me) from catalyst component (2) being from 1 : 0.1 to 1 : 500, wherein the titanium-containing catalyst component (1) employed is the solid-phase product (VI) obtained by (1.1) first bringing into contact (1.1.1) a particular finely divided, porous, inorganic oxidic material (I) and (1.1.2) a particular aluminum compound (II) dissolved in an organic solvent, to form a solid-phase product (III) and (1.2) then bringing into contact (1.2.1) the solid-phase product (III) obtained from stage (1.1) and (1.2.2) a solution (IV) which is obtained on bringing together (IVa) 100 parts by weight of a particular alcohol, (IVb) from 0.01 to 6 parts by weight (calculated as titanium) of a titanium trihalide and (IVc) from 0.01 to 4 parts by weight (calculated as magnesium) of a magnesium compound which is soluble in the alcohol (IVa), to form a dispersion (V), and evaporating the dispersion (V) until it has a dry consistency, thus forming the solid-phase product (VI). The new process is particularly advantageous for the manufacture of homopolymers and copolymers having, for example, particularly advantageous morphological properties.
REFERENCES:
patent: 3718635 (1973-02-01), Tomoshige et al.
patent: 3787384 (1974-01-01), Stevens et al.
patent: 3941760 (1976-03-01), Herbeck et al.
patent: 3956255 (1976-05-01), Ort
patent: 3993588 (1976-11-01), Thukral
Bachl Robert
Frielingsdorf Hans
Gruber Wolfgang
Kolk Erich
Mueller-Tamm Heinz
BASF - Aktiengesellschaft
Smith Edward J.
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