Process for producing olefin polymers or copolymers and catalyst

Details Process for producing olefin polymers or copolymers and catalyst Process for producing olefin polymers or copolymers and catalyst

1988-03-11

1990-08-28

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

502119, 502125, 502126, 502127, 526122, 526124, 526348, 5263484, 5263486, 526351, 526352, 526904, 526909, C08F 4654, C08F 1000

Patent

active

049526499

ABSTRACT:
A solid titanium catalyst component (A) of a catalyst system useful in the polymerization of olefins or copolymerization of two or more olefins or one or more olefins and a diene is prepared by contacting a liquid hydrocarbon solution of (i) a magnesium compound, such as magnesium chloride, with (ii) a liquid titanium compound, such as TiCl.sub.4, or a solution of a titanium compound in a hydrocarbon solvent, to form a solid product. The solid product is formed in the presence of (D) an electron donor, e.g. methyl formate, acetic acid, acetic anhydride, acetone, methyl ether, butyl Cellosolve, dimethyl carbonate, methyl silicate. The solid product is also contacted with a polycarboxylic acid ester, e.g. diethyl methylsuccinate. The polymerization or copolymerization of the olefin is carried out in the presence of the solid titanium catalyst (A) and (B) an organometallic compound of a Group I to III metal and (C) an organic silicon compound having an Si--O--C bond. Granular or spherical polyethylene, polypropylene, poly(butene-1), poly(4-methylpentene-1), etc. are produced in high yield, with good flowability, high bulk density, and narrow particle size distribution. The polymers can be produced over a wide range of melt index values without reduction in stereospecificity. Catalyst activity is retained with passage of time.

REFERENCES:
patent: 4330649 (1982-05-01), Kioka et al.
patent: 4336360 (1982-06-01), Giannini et al.

Affiliated with

Also associated with

Rating

Process for producing olefin polymers or copolymers and catalyst does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing olefin polymers or copolymers and catalyst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing olefin polymers or copolymers and catalyst will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1590587