Patent US3969272A successfully refreshed from Google Patents.
US3969272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chromium tris-diorgano-orthophosphate-alkyl aluminum halide catalysts for olefin polymerization and alkylation of aromatic compounds
Assignee: Anderson Development Co
•
Filing: 1974-12-12
•
Granted: 1976-07-13
•
Expires: 1994-12-12
Abstract
Abstract The reaction product of a chromium tris-diorgano-orthophosphate and an alkyl aluminum halide is a catalyst for olefin polymerization and for alkylation of aromatic hydrocarbons with olefins.
Inventors
- 👤 Jeffrey G. Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:40
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/14; B01J31/143; B01J31/16; B01J31/18; B01J31/1845; B01J31/185; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C08; C08F; C08F110/00; C08F110/02; B01J2231/00; B01J2231/10; B01J2231/12; B01J2231/122; B01J2231/30; B01J2231/32; B01J2231/323; B01J2531/00; B01J2531/60; B01J2531/62; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
149 words
A combination catalyst composition for olefin polymerization and for alkylation of aromatic hydrocarbons with olefins, said catalyst consisting essentially of the reaction product prepared by mixing (A) a chromium tris-diorgano-orthophosphate of the formula Cr[OP(0) (OR) 2 ] 3 in which each R is selected from the class consisting of non-aromatic hydrocarbon groups free of aliphatic unsaturation and containing one to eight carbon atoms, non-aromatic hydrocarbon ether groups free of aliphatic unsaturation and containing three to six carbon atoms and chlorinated and brominated derivatives thereof, and (B) an alkyl aluminum halide of the general formula R' c Al X d in which each R' is an alkyl group of one to six carbon atoms, each X is a halogen atom, each of c and d is 1 or 2 and the total of c and d is 3, the mol ratio of (A) to (B) ranging from 1:1 to 1:20.
Claim 2
Dependent Claim
149 words
A combination catalyst composition for olefin polymerization and for alkylation of aromatic hydrocarbons with olefins, said catalyst consisting essentially of the reaction product prepared by mixing (A) a chromium tris-diorgano-orthophosphate of the formula Cr[OP(0) (OR) 2 ] 3 in which each R is selected from the class consisting of non-aromatic hydrocarbon groups free of aliphatic unsaturation and containing one to eight carbon atoms, non-aromatic hydrocarbon ether groups free of aliphatic unsaturation and containing three to six carbon atoms and chlorinated and brominated derivatives thereof, and (B) an alkyl aluminum halide of the general formula R' c Al X d in which each R' is an alkyl group of one to six carbon atoms, each X is a halogen atom, each of c and d is 1 or 2 and the total of c and d is 3, the mol ratio of (A) to (B) ranging from 1:1 to 1:20.
Claim 3
Dependent Claim
20 words
A composition in accordance with claim 1 wherein each R is an alkyl group of two to four carbon atoms.
Claim 4
Dependent Claim
20 words
A composition in accordance with claim 1 wherein each R is an alkoxyalkyl group containing three to six carbon atoms.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-13 | 1980-01-12 | 1980-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-13 | 1984-01-12 | 1984-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-13 | 1988-01-12 | 1988-07-13 | $7700.00 | Window Closed / Lapsed |