Abstract This invention comprises the novel composition formed by mixing (A) a chromium tris-diorgano-orthophosphate of the general formula Cr(OP (O) (OR)2)3 wherein R can be an alkyl, alkoxyalkyl or cycloalkyl group of one to about eight carbon atoms and the chlorinated and brominated derivatives thereof, (B) an alkyl aluminum compound of the general formula R''2R''''Al in which each R'' and R'''' can be an alkyl group of 1 to 6 carbon atoms and each R'''' can also be a hydrogen atom, and (C) a halogenated olefin of four to about eight carbon atoms containing at least four halogen atoms at least two of which are attached to doubly bonded carbon atoms. This invention also comprises the use of this novel combination as a catalyst for the polymerization of ethylene alone or with propylene and other olefins. This invention also comprises the polymer products prepared by said method.
Inventors
👤 Jeffrey G Meyer
👤 Glennis L Phipps
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-01 17:53
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
179 words
A COMPOSITION FORMED BY MIXING (A) A CHROMIUM TRISDIORGANO-ORTHOPHOSPHATE OF THE FORMULA CR(OP (O)(OR)2)3 IN WHICH EACH R IS SELECTED FROM THE CLASS CONSISTING OF ALKYL, CYCLOALKYL, ALKOXYALKYL, CHLORINATED DERIVATIVES THEREOF AND BROMINATED DERIVATIVES THEREOF, SAID ALKYL AND CYCLOALKYL CONTAINING ONE TO EIGHT CARBON ATOMS AND SAID ALKOXYALKYL CONTAINING THREE TO SIX CARBON ATOMS, (B) AN ALKYL ALUMINUM OF THE GENERAL FORMULA R2''R"AL IN WHICH EACH R'' IS AN ALKYL GROUP OF 1 TO 6 CARBON ATOMS AND EACH R" IS SELECTED FROM THE GROUP CONSISTING OF ALKYL GROUPS OF 1 TO 6 CARBON ATOMS AND HYDROGEN ATOMS, AND (C) A HALOGENATED OLEFIN OF FROM FOUR TO ABOUT EIGHT CARBON ATOMS, SAID OLEFIN CONTAINING AT LEAST FOUR HALOGEN ATOMS AT LEAST TWO OF WHICH ARE ATTACHED TO OLEFINIC CARBON ATOMS, THERE BEING AT LEAST ONE OLEFINIC BOND IN CONJUGATION WITH ANOTHER DOUBLE BOND OR AT LEAST ONE HALOGEN ATOM ATTACHED TO A CARBON ATOM ALPHA TO AN OLEFINIC DOUBLE BOND, THE MOLE RATIO OF (A) TO (B) TO (C) BEING IN THE RANGE OF 0.001-1 : 1 : 1-10.
Claim 2
Dependent Claim
179 words
A COMPOSITION FORMED BY MIXING (A) A CHROMIUM TRISDIORGANO-ORTHOPHOSPHATE OF THE FORMULA CR(OP (O)(OR)2)3 IN WHICH EACH R IS SELECTED FROM THE CLASS CONSISTING OF ALKYL, CYCLOALKYL, ALKOXYALKYL, CHLORINATED DERIVATIVES THEREOF AND BROMINATED DERIVATIVES THEREOF, SAID ALKYL AND CYCLOALKYL CONTAINING ONE TO EIGHT CARBON ATOMS AND SAID ALKOXYALKYL CONTAINING THREE TO SIX CARBON ATOMS, (B) AN ALKYL ALUMINUM OF THE GENERAL FORMULA R2''R"AL IN WHICH EACH R'' IS AN ALKYL GROUP OF 1 TO 6 CARBON ATOMS AND EACH R" IS SELECTED FROM THE GROUP CONSISTING OF ALKYL GROUPS OF 1 TO 6 CARBON ATOMS AND HYDROGEN ATOMS, AND (C) A HALOGENATED OLEFIN OF FROM FOUR TO ABOUT EIGHT CARBON ATOMS, SAID OLEFIN CONTAINING AT LEAST FOUR HALOGEN ATOMS AT LEAST TWO OF WHICH ARE ATTACHED TO OLEFINIC CARBON ATOMS, THERE BEING AT LEAST ONE OLEFINIC BOND IN CONJUGATION WITH ANOTHER DOUBLE BOND OR AT LEAST ONE HALOGEN ATOM ATTACHED TO A CARBON ATOM ALPHA TO AN OLEFINIC DOUBLE BOND, THE MOLE RATIO OF (A) TO (B) TO (C) BEING IN THE RANGE OF 0.001-1 : 1 : 1-10.
Claim 3
Dependent Claim
9 words
The composition of claim 1 wherein (C) is hexachlorobutadiene.
Claim 4
Dependent Claim
12 words
The composition of claim 1 wherein each R is an alkyl group.
Claim 5
Dependent Claim
28 words
The composition claim 1 wherein the total number of carbon atoms in the R'' and R'''' substituents of component (B) is in the range of 3 to 8.