EP0318048A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
New calalysts for the polymerization of olefins
Assignee: Ausimont Spa montell North America Inc montedi
•
Filing: 1988-11-28
•
Granted: —
•
Expires: 2008-11-28
Abstract
Abstract Catalysts for the polymerization of olefins, obtained by means of the reaction of: a) a compound of a transition metal containing at least one metal-halogen linkage, supported on a magnesium halide in the active form, with b) a compound of Ti, Zr of Hf, containing at least one metal-carbon linkage.
Inventors
- 👤 Enrico Dr. Albizzati
- 👤 Luigi Maria Dr. Resconi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 03:58
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/64; C08F10/00; C08F210/00; C08F210/04; C08F210/06; C08F4/659; C08F4/65904; C08F4/65916
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
141 words
Catalysts for the (co)polymerization of olefins, which contain the product of the reaction of: a) a solid catalytic component having a porosity of at least 0.2 g/cc, comprising a compound of Ti, V or Zr with at least one metal-halogen linkage, and possibly an electron-donor compound, supported on a anhydrous magnesium halide in the active form, with: b) a compound of Hf, Ti or Zr, containing at least one metal-carbon linkage, in particular of formula: MR n X 4-n wherein: M = Ti, Zr; R = -CH₃, -CH₂-SiR′₃, -CH₂-CR′₃, -CH₂-aryl, -CH₂-CH=CH₂, with: R′ = a linear or branched alkyl radical containing from 1 to 10 carbon atoms; X = halogen, -OR, -NR₂, Cp, wherein Cp = C₅R˝₅, indenyl, with R˝ = H, an alkyl radical of from 1 to 6 carbon atoms, n = a numeral of from 1 to 3.
Claim 2
Dependent Claim
141 words
Catalysts for the (co)polymerization of olefins, which contain the product of the reaction of: a) a solid catalytic component having a porosity of at least 0.2 g/cc, comprising a compound of Ti, V or Zr with at least one metal-halogen linkage, and possibly an electron-donor compound, supported on a anhydrous magnesium halide in the active form, with: b) a compound of Hf, Ti or Zr, containing at least one metal-carbon linkage, in particular of formula: MR n X 4-n wherein: M = Ti, Zr; R = -CH₃, -CH₂-SiR′₃, -CH₂-CR′₃, -CH₂-aryl, -CH₂-CH=CH₂, with: R′ = a linear or branched alkyl radical containing from 1 to 10 carbon atoms; X = halogen, -OR, -NR₂, Cp, wherein Cp = C₅R˝₅, indenyl, with R˝ = H, an alkyl radical of from 1 to 6 carbon atoms, n = a numeral of from 1 to 3.
Claim 3
Dependent Claim
28 words
Catalysts according to claim 1, wherein the (b) component is a zirconium compound selected from among Zr(CH₂C₆H₅)₄, Zr(CH₂C₆H₄-pCH₃)₄, ZrCl(CH₂C₆H₅)₃, ZrCl₂(CH₂C₆H₅ )₂ , Zr[CH₂ C(CH₃)₂C₆H₅]₄ , Zr(C₅H₅ )₂(CH₃)₂ .
Claim 4
Dependent Claim
25 words
Catalysts according to claims 1 and 2, wherein the solid catalytic component has a porosity comprised within the range of from 0.3 to 0.9 cc/g.
Claim 5
Dependent Claim
19 words
Catalysts according to the preceding claims, wherein the transition metal compound supported on magnesium halide is a Ti halide.
Claim 6
Dependent Claim
23 words
Catalysts according to the preceding claims, wherein the solid catalytic component comprises an electron-donor compound selected from the esters of the aromatic acids.
Claim 7
Dependent Claim
30 words
Process for the (co)polymerization of olefins CH₂=CHR wherein R is hydrogen, a (C₁-C₈)-alkyl or an aryl, carried out in the presence of a catalyst according to the preceding claims 1-5.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.