Patent US3978031A successfully refreshed from Google Patents.
US3978031A
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Process for the polymerization of olefins and catalytic products
Assignee: Solvay SA
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Filing: 1974-10-25
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Granted: 1976-08-31
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Expires: 1994-10-25
Abstract
Abstract This invention relates to novel catalysts and cocatalysts for use in the polymerization and copolymerization of α-olefins, to a process of using such catalysts to polymerize and copolymerize α-olefins, and to a process of making such cocatalysts. The α-olefins are polymerized or copolymerized in the presence of a catalytic amount of a catalyst comprising an organometallic compound of a metal of Groups I a, II a, II b, III a, or IV a of the Periodic Table and a cocatalyst comprising the reaction product of an activated halogenated alumina having an atomic ratio of halogen/aluminum of from 0.1 to 1 and a derivative of a transition metal.
Inventors
- 👤 Luigi Reginato
- 👤 Charles Bienfait
- 👤 Jacques Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:34
CPC Classifications
C; C08; C08F; C08F4/00; C08F10/00; C08F10/02; C08F110/00; C08F110/02; C08F210/00; C08F210/04; C08F210/08; C08F210/14; C08F210/16; C08F4/02; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/64; C08F4/659; C08F4/65912; C08F4/65916; C08F2500/00; C08F2500/03; C08F2500/12; C08F2500/18
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
71 words
Catalysts for the polymerization and copolymerization of α-olefins comprising an alkyl aluminum compound, and a cocatalyst consisting essentially of the reaction product of a heat-activated fluorinated alumina having an atomic ratio of fluorine/aluminum of 0.01 to 0.30 and a compound of titanium metal selected from chlorides, oxychlorides, alkoxychlorides and oxyalkoxychlorides, said alumina being activated by heat at a stage prior to reaction of the fluorinated alumina with the transition metal compound.
Claim 2
Dependent Claim
71 words
Catalysts for the polymerization and copolymerization of α-olefins comprising an alkyl aluminum compound, and a cocatalyst consisting essentially of the reaction product of a heat-activated fluorinated alumina having an atomic ratio of fluorine/aluminum of 0.01 to 0.30 and a compound of titanium metal selected from chlorides, oxychlorides, alkoxychlorides and oxyalkoxychlorides, said alumina being activated by heat at a stage prior to reaction of the fluorinated alumina with the transition metal compound.
Claim 3
Dependent Claim
34 words
A process for the polymerization and copolymerization of α-olefins which comprises contacting the olefins, at a temperature and pressure sufficient to initiate the reaction, with a catalytic amount of the catalyst of claim 1.
Claim 4
Dependent Claim
72 words
Catalysts for the polymerization and copolymerization of α-olefins comprising an alkyl aluminum compound, and a cocatalyst consisting essentially of the reaction product of a heat-activated fluorinated alumina having an atomic ratio of fluorine/aluminum of from 0.06 to 0.30 and a compound of titanium metal selected from chlorides, oxychlorides, alkoxychlorides and oxyalkoxychlorides, said alumina being activated by heat at a stage prior to reaction of the fluorinated alumina with the transition metal compound.
Claim 5
Dependent Claim
72 words
Catalysts for the polymerization and copolymerization of α-olefins comprising an alkyl aluminum compound, and a cocatalyst consisting essentially of the reaction product of a heat-activated fluorinated alumina having an atomic ratio of fluorine/aluminum of from 0.06 to 0.30 and a compound of titanium metal selected from chlorides, oxychlorides, alkoxychlorides and oxyalkoxychlorides, said alumina being activated by heat at a stage prior to reaction of the fluorinated alumina with the transition metal compound.
Claim 6
Dependent Claim
41 words
The catalyst of claim 3 wherein the fluorinated alumina is activated by heating the fluorinated alumina at a temperature of between 300° to 900°C. for more than one hour and wherein the fluorine/aluminum atomic ratio is between about 0.1 to 0.15.
Claim 7
Dependent Claim
34 words
A process for the polymerization and copolymerization of α-olefins which comprises contacting the olefins, at a temperature and pressure sufficient to initiate the reaction, with a catalytic amount of the catalyst of claim 3.
Claim 8
Dependent Claim
67 words
Cocatalysts for use in catalyzing the polymerization and copolymerization of α-olefins consisting essentially of the reaction product of a heat-activated fluorinated alumina having an atomic ratio of fluorine/aluminum of from 0.06 to 0.30 and a compound of titanium metal selected from chlorides, oxychlorides, alkoxychlorides and oxyalkoxychlorides, said alumina being activated by heat at a stage prior to reaction of the fluorinated alumina with the transition metal compound.
Claim 9
Dependent Claim
67 words
Cocatalysts for use in catalyzing the polymerization and copolymerization of α-olefins consisting essentially of the reaction product of a heat-activated fluorinated alumina having an atomic ratio of fluorine/aluminum of from 0.06 to 0.30 and a compound of titanium metal selected from chlorides, oxychlorides, alkoxychlorides and oxyalkoxychlorides, said alumina being activated by heat at a stage prior to reaction of the fluorinated alumina with the transition metal compound.
Claim 10
Dependent Claim
41 words
The cocatalyst of claim 6 wherein the fluorinated alumina is activated by heating the fluorinated alumina at a temperature of between 300° to 900°C. for more than one hour and wherein the fluorine/aluminum atomic ratio is between about 0.1 to 0.15.
Claim 11
Dependent Claim
67 words
Cocatalysts for use in catalyzing the polymerization and copolymerization of α-olefins consisting essentially of the reaction product of a heat-activated fluorinated alumina having an atomic ratio of fluorine/aluminum of from 0.01 to 0.30 and a compound of titanium metal selected from chlorides, oxychlorides, alkoxychlorides and oxyalkoxychlorides, said alumina being activated by heat at a stage prior to reaction of the fluorinated alumina with the transition metal compound.
Claim 12
Dependent Claim
67 words
Cocatalysts for use in catalyzing the polymerization and copolymerization of α-olefins consisting essentially of the reaction product of a heat-activated fluorinated alumina having an atomic ratio of fluorine/aluminum of from 0.01 to 0.30 and a compound of titanium metal selected from chlorides, oxychlorides, alkoxychlorides and oxyalkoxychlorides, said alumina being activated by heat at a stage prior to reaction of the fluorinated alumina with the transition metal compound.
Claim 13
Dependent Claim
77 words
Catalysts for the polymerization and copolymerization of ethylene comprising a trialkyl aluminum containing from 4 to 12 carbon atoms, and a cocatalyst consisting essentially of the reaction product of a heat-activated fluorinated alumina having an atomic ratio of fluorine/aluminum of from 0.01 to 0.30 and an internal porosity higher than 1 cm 3 /gm with titanium tetrachloride, said alumina being activated by heat at a stage prior to reaction of the fluorinated alumina with the titanium compound.
Claim 14
Dependent Claim
77 words
Catalysts for the polymerization and copolymerization of ethylene comprising a trialkyl aluminum containing from 4 to 12 carbon atoms, and a cocatalyst consisting essentially of the reaction product of a heat-activated fluorinated alumina having an atomic ratio of fluorine/aluminum of from 0.01 to 0.30 and an internal porosity higher than 1 cm 3 /gm with titanium tetrachloride, said alumina being activated by heat at a stage prior to reaction of the fluorinated alumina with the titanium compound.
Claim 15
Dependent Claim
41 words
The catalyst of claim 9 wherein the fluorinated alumina is activated by heating the fluorinated alumina at a temperature of between 300° to 900°C. for more than one hour and wherein the fluorine/aluminum atomic ratio is between about 0.1 to 0.15.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-31 | 1980-03-01 | 1980-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-31 | 1984-03-01 | 1984-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-31 | 1988-03-01 | 1988-08-31 | $7700.00 | Window Closed / Lapsed |