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US4120883A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for producing an organomagnesium complex

Assignee: Asahi Kasei Corp
•
Filing: 1976-12-13
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Granted: 1978-10-17
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Expires: 1996-12-13
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Abstract

Abstract A method for producing an organomagnesium complex which is soluble in an inert hydrocarbon medium and expressed by the general formula Mg.sub.α Al.sub.β R 1 p Y q is provided. In this formula α, β, p and q each is a number greater than zero, α/β = about 0.5 to 20, 2α and 3β = p + q, q/β = about 0.5 to 1.5, Y is OR 2 or OSiR 3 R 4 R 5 , R 1 , r 2 and R 3 each independently is a hydrocarbon radical having 1 to 20 carbon atoms, and R 4 and R 5 each independently is a hydrocarbon radical having 1 to 20 carbon atoms, hydrogen or a halogen atom. Said complex is prepared by reacting (A) an organomagnesium compound R 1 a M g X 2-a wherein x is halogen, with (B) an aluminum compound AlYX 2 wherein Y and X have the same meanings as above-defined. This method is superior to the prior art with respect to ease of reaction, high reaction efficiency and safety. Further the complex is safe during storage and handling. When the complex is employed as an olefin polymerization catalyst, the catalyst efficiency is higher and the characteristic properties of the resultant polymer are superior to those of polymers with other complexes.

Inventors

  • 👤 Hisaya Sakurai
  • 👤 Hideo Morita
  • 👤 Tadashi Ikegami
  • 👤 Katsuaki Maeda
  • 👤 Masayasu Furusato

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 13:23
CPC Classifications
C; C08; C08F; C08F10/00; C07; C07F; C07F3/00; C07F3/02; C07F5/00; C07F5/06; C07F5/061; C07F5/066; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0836; C07F7/0896; Y; Y10; Y10S; Y10S526/00; Y10S526/909

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 175 words
A method for producing a hydrocarbon-soluble organomagnesium complex of the formula Mg.sub.α Al.sub.β R.sup.1.sub.p Y.sub.q wherein α, β, p and q each is a number greater than zero, α/β = about 0.5 to 20, α and 3β = p + q, q/β = about 0.5 to 1.5, Y is OR 2 or OSiR 3 R 4 R 5 , R 1 , r 2 and R 3 each independently is a hydrocarbon radical having 1 to 20 carbon atoms, and R 4 and R 5 each independently is a hydrocarbon radical having 1 to 20 carbon atoms, hydrogen or a halogen atom, which comprises reacting in an inert hydrocarbon medium at a temperature of about 50°-150° C. and for about 0.5 to 20 hours (A) an ether-free solution containing about 0.1-2.5 mols per liter of organomagnesium compound of the formula R.sup.1.sub.a MgX.sub.2-a with (B) a solution containing about 0.005-5 mols per liter of an aluminum compound of the formula AlYX.sub.2 wherein X is a halogen atom, and a is a positive number up to 2.
Claim 2
Independent Claim 175 words
A method for producing a hydrocarbon-soluble organomagnesium complex of the formula Mg.sub.α Al.sub.β R.sup.1.sub.p Y.sub.q wherein α, β, p and q each is a number greater than zero, α/β = about 0.5 to 20, α and 3β = p + q, q/β = about 0.5 to 1.5, Y is OR 2 or OSiR 3 R 4 R 5 , R 1 , r 2 and R 3 each independently is a hydrocarbon radical having 1 to 20 carbon atoms, and R 4 and R 5 each independently is a hydrocarbon radical having 1 to 20 carbon atoms, hydrogen or a halogen atom, which comprises reacting in an inert hydrocarbon medium at a temperature of about 50°-150° C. and for about 0.5 to 20 hours (A) an ether-free solution containing about 0.1-2.5 mols per liter of organomagnesium compound of the formula R.sup.1.sub.a MgX.sub.2-a with (B) a solution containing about 0.005-5 mols per liter of an aluminum compound of the formula AlYX.sub.2 wherein X is a halogen atom, and a is a positive number up to 2.
Claim 3
Dependent Claim 28 words
The method according to claim 1, wherein α/β = about 1 to 10, at least one of R 4 and R 5 is hydrogen, and X is chlorine.
Claim 4
Dependent Claim 14 words
The method according to claim 1 wherein R 1 is an aliphatic hydrocarbon group.
Claim 5
Dependent Claim 12 words
The method according to claim 1 wherein Y is OR 2 .
Claim 6
Dependent Claim 12 words
The method according to claim 3 wherein Y is OR 2 .
Claim 7
Dependent Claim 14 words
The method according to claim 4 wherein R 2 is propyl, butyl or amyl.
Claim 8
Dependent Claim 16 words
The method according to claim 1 wherein Y is OSiR 3 R 4 R 5 .
Claim 9
Dependent Claim 20 words
The method according to claim 7 wherein at least one of R 4 and R 5 is a hydrogen atom.
Claim 10
Dependent Claim 16 words
The method according to claim 3 wherein Y is OSiR 3 R 4 R 5 .
Claim 11
Dependent Claim 20 words
The method according to claim 9 wherein at least one of R 4 and R 5 is a hydrogen atom.

References Cited (Backward Citations)

US2899415A Cited
GB1003551A Cited
US3737393A Cited
JPS4818235B1 Cited
US3850897A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-10-16 1982-04-17 1982-10-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-10-16 1986-04-17 1986-10-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-10-16 1990-04-17 1990-10-17 $7700.00 Window Closed / Lapsed

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