Electron donors

Details Electron donors Electron donors

1997-12-10

2000-09-26

Richter, Johann

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568630, 568656, 568657, 502126, 526125, C07C 43263

Patent

active

061245070

ABSTRACT:
Novel compositions of the structure ##STR1## wherein R.sup.1 and R.sup.2 are each an alkoxy group which may be the same or different and have from one to ten carbon atoms, and R.sup.3 -R.sup.6 are each individually, hydrogen, hydrocarbyl, hydrocarboxy, nitro, a silyl group or a halogen, with the provisos that if either R.sup.1 or R.sup.2 are methoxy, then at least one of R.sup.3 -R.sup.6 is not hydrogen, if R.sup.1 and R.sup.2 are both ethoxy, then at least one of R.sup.3 -R.sup.6 is not hydrogen, and R.sup.1 and R.sup.2 cannot both be methoxy, are taught herein, which may be used as electron donors, either internal or external, for catalysts used in the polymerization of olefins.

REFERENCES:
patent: 3764629 (1973-10-01), Gurien et al.
patent: 4107413 (1978-08-01), Giannini et al.
patent: 4107414 (1978-08-01), Giannini et al.
patent: 4393182 (1983-07-01), Goodall et al.
patent: 4680054 (1987-07-01), Takematsu et al.
patent: 4710482 (1987-12-01), Job
patent: 4971936 (1990-11-01), Wilson et al.
patent: 4988730 (1991-01-01), Korbonits et al.
patent: 5077357 (1991-12-01), Job
patent: 5352570 (1994-10-01), Begley
Article--Profft et al., "Aldehyde des Isohomobrenzkatechns (=3-Methylbrenzkatechin)", Journal fur praktische Chemie., 4. Eihe. Band 11. 1960, pp 309-326.
CA 94291-49-3, Sep. 16, 1985.

Affiliated with

Also associated with

Rating

Electron donors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electron donors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electron donors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2101739