EP0176641A1
Expired / Lapsed
EP
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Hydrocarbon fluid friction reducing composition containing olefin copolymer and process for producing same
Assignee: Pony Industries Inc
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Filing: 1984-10-05
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Granted: —
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Expires: 2004-10-05
Abstract
Abstract 57 The hydrocarbon fluid friction reducing properties of copolymers of two or more alpha-monoolefins having 2 to about 30 carbon atoms is improved by copolymerising the monomers in the liquid state by means of a Ziegler catalyst and a two-component activator system comprising a trialkylaluminium compound and a dialkylaluminium halide compound.
Inventors
- 👤 Robert J. Kostelnik
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 18:08
CPC Classifications
F; F17; F17D; F17D1/00; F17D1/08; F17D1/16; C; C08; C08F; C08F210/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
139 words
A hydrocarbon fluid friction reducing composition comprising (a) an organic solvent and (b) a high molecular weight copolymer of two or more alpha-monoolefins having 2 to about 30 carbon atoms prepared by copolymerising the corresponding alpha-monoolefins in the presence of a catalyst comprising a compound of a metal of Group IV-B, V-B, or VIII of the Periodic Chart and an organo metal catalyst activator comprising about 1 to 20 moles of at least one trialkylaluminium compound, each alkyl group of which has 1 to about 10 carbon atoms and about 99 to 80 moles of at least one dialkylaluminium halide compound, each alkyl group of which has 1 to about 10 carbon atoms, per 100 moles of catalyst activator, the mole ratio of activator to catalyst in the reaction mixture being in the range of about 0.001:1 to 50:1.
Claim 2
Dependent Claim
139 words
A hydrocarbon fluid friction reducing composition comprising (a) an organic solvent and (b) a high molecular weight copolymer of two or more alpha-monoolefins having 2 to about 30 carbon atoms prepared by copolymerising the corresponding alpha-monoolefins in the presence of a catalyst comprising a compound of a metal of Group IV-B, V-B, or VIII of the Periodic Chart and an organo metal catalyst activator comprising about 1 to 20 moles of at least one trialkylaluminium compound, each alkyl group of which has 1 to about 10 carbon atoms and about 99 to 80 moles of at least one dialkylaluminium halide compound, each alkyl group of which has 1 to about 10 carbon atoms, per 100 moles of catalyst activator, the mole ratio of activator to catalyst in the reaction mixture being in the range of about 0.001:1 to 50:1.
Claim 3
Dependent Claim
130 words
A process for preparing a hydrocarbon fluid friction reducing composition comprising mixing two or more alpha-monoolefins having 2 to about 30 carbon atoms in a diluent or an organic solvent and copolymerising the alpha-monoolefins in the presence of a catalyst comprising a compound of a metal of Group IV-B, V-B, or VIII of the Periodic Chart and an organo metal catalyst activator comprising about 1 to 20 moles of at least one trialkylaluminium compound, each alkyl group of which has 1 to 10 carbon atoms and about 99 to 80 moles of at least one dialkylaluminium halid compound, each alkyl group of which has 1 to about 10 carbon atoms, the mole ratio of activator to catalyst in the reaction mixture being in the range of about 0.001:1 to 50:1.
Claim 4
Dependent Claim
130 words
A process for preparing a hydrocarbon fluid friction reducing composition comprising mixing two or more alpha-monoolefins having 2 to about 30 carbon atoms in a diluent or an organic solvent and copolymerising the alpha-monoolefins in the presence of a catalyst comprising a compound of a metal of Group IV-B, V-B, or VIII of the Periodic Chart and an organo metal catalyst activator comprising about 1 to 20 moles of at least one trialkylaluminium compound, each alkyl group of which has 1 to 10 carbon atoms and about 99 to 80 moles of at least one dialkylaluminium halid compound, each alkyl group of which has 1 to about 10 carbon atoms, the mole ratio of activator to catalyst in the reaction mixture being in the range of about 0.001:1 to 50:1.
Claim 5
Dependent Claim
45 words
A composition as claimed in claim 1 or a process as claimed in claim 2, wherein said alpha-monoolefins have 4 to 20 carbon atoms and said organic solvent is selected from kerosene, naphtha, petroleum distillate, alkanes having 6 to 10 carbons and mixtures of these.
Claim 6
Dependent Claim
28 words
A composition or process as claimed in claim 3, wherein said copolymer is prepared from butene-1 and at least one other alpha-monoolefin having 5 to 16 carbon atoms.
Claim 7
Dependent Claim
25 words
A composition or process as claimed in claim 4, wherein said other alpha-monoolefin is selected from hexene-1, octene-1, decene-1, dodecene-1, tetradecene-1 and mixtures of these.
Claim 8
Dependent Claim
32 words
A composition or process as claimed in any one of claims 1 to 5, wherein said catalyst is selected from titanium halides, zirconium halides, vanadium oxyhalides, niobium oxyhalides and mixtures of these.
Claim 9
Dependent Claim
84 words
A composition or process as claimed in any one of claims 3, 4, 5 and 6, wherein the ratio of activator to catalyst is in the range of about 0.01 to 25 moles of activator per mole of catalyst, and the mole ratio of total trialkylaluminium compound to total dialkylaluminium halide compound is in the range of about 3:97 to 15:85, and each alkyl group in the trialkylaluminium compound and each alkyl group in the dialkylaluminium halide compound has 2 to 6 carbon atoms.
Claim 10
Dependent Claim
23 words
A composition or process as claimed in claim 7, wherein said catalyst is selected from titanium tetrachloride, titanium trichloride and mixtures of these.
Claim 11
Dependent Claim
22 words
A composition or process as claimed in claim 8, wherein said trialkylaluminium compound is triethylaluminium and said dialkylaluminium halide is diethylaluminium chloride.
References Cited (Backward Citations)
FR2258402A1
Cited
GB2074175A
Cited
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