Supported catalyst containing active titanium in the homo,...

Details Supported catalyst containing active titanium in the homo,... Supported catalyst containing active titanium in the homo,...

2002-12-06

2008-11-11

Choi, Ling-Siu (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S124300, C526S351000, C526S348600, C502S103000, C502S115000, C502S118000

Reexamination Certificate

active

07449528

ABSTRACT:
The present invention relates to a supported catalyst containing titanium, its preparation and it use in the homo-, co-, and ter-polymerization of olefin-unsaturated compounds. The present invention also relates to a catalytic system comprising a supported catalyst based on titanium and a co-catalyst selected from organo-derivatives of aluminum. More specifically, the present invention relates to catalyst supported on silica, obtained by reacting a titanium halocarboxylate and a magnesium halocarboxylate with an aluminum chloroakylderivative, in the presence of a carrier consisting of high porosity silica. The above reaction essentially takes place in the pores of the silica itself.

REFERENCES:
patent: 3875075 (1975-04-01), Boone et al.
patent: 6225420 (2001-05-01), Palmqvist et al.
patent: 9722633 (1997-06-01), None
Rafikov et al., Izvestiya akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, p. 1615-1617 (1976).
Rafikov S R et al: “Effect of the chemical nature of the substituent in titanium tetrachlorid derivatives on the Ziegler polymerization of butadiene” Akademiya Nauk SSR Izvestiya. Seriya Khimicheskaya, Moscow, RU, No. 7, 1975, pp. 1615-1617, XP002181172, the whole document.

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