US3897407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing crystalline propylene polymer
Assignee: JNC Corp
•
Filing: 1973-05-14
•
Granted: 1975-07-29
•
Expires: 1993-05-14
Abstract
Abstract Crystalline propylene polymer is produced with a very high efficiency and with few formation of amorphous polymer, from propylene or propylene together with Alpha -olefin by contacting propylene or propylene together with Alpha -olefin with a catalyst comprising (1) a size-controlled and heat-treated TiCl3.0.33AlCl3 and (2) a dialkylaluminum monohalide or a combination of an alkylaluminum dihalide and Si(OC2H5)4, said size-controlled and heat-treated Ti-Cl3.0.33AlCl3 being prepared by reacting TiCl4 with Al powders in a mol ratio of TiCl4 to Al greater than 3:1, removing unreacted TiCl4, size-controlling the resulting powders of TiCl3.0.33AlCl3 by ball-milling in a ballmill containing the same or substantially the same size of steel or stainless steel balls having a diameter of 25 - 50 mm, at room temperature, to give size-controlled powders consisting of 50 % or more of the particles of 325 meshes on and less than 50 % of the particles of 325 meshes pass, and heat-treating the sizecontrolled powders at specified conditions of temperature, pressure and time.
Inventors
- 👤 Isoo Shirai
- 👤 Takeshi Suzuki
- 👤 Koichi Tonooka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:30
CPC Classifications
C; C08; C08F; C08F10/00; C08F10/04; Y; Y10; Y10S; Y10S526/00; Y10S526/906; Y10S526/908
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
23 words
A PROCESS FOR PRODUCING CRYSTALLINE PROPYLENE POLYMERS WHICH COMPRISES CONTACTING PROPYLENE OR A MIXTURE OF PROPYLENE AND ANOTHER A-OLEFIN, WITH A CATALYST COMPRISING
Claim 2
Dependent Claim
23 words
A PROCESS FOR PRODUCING CRYSTALLINE PROPYLENE POLYMERS WHICH COMPRISES CONTACTING PROPYLENE OR A MIXTURE OF PROPYLENE AND ANOTHER A-OLEFIN, WITH A CATALYST COMPRISING
Claim 3
Dependent Claim
8 words
A SIZE-CONTROLLED AND HEAT-TREATED TIC13, 0.33 ALCL3 AND
Claim 4
Dependent Claim
8 words
A SIZE-CONTROLLED AND HEAT-TREATED TIC13, 0.33 ALCL3 AND
Claim 5
Dependent Claim
48 words
A DIALKYLALUMINUM MONOHALIDE HAVING THE GENERAL FORMULA OF ALR2X (WHEREIN R IS A HYDROCARBON RADICAL AND X IS A HALOGEN ATOM) OR A COMBINATION OF AN ALKYLALUMINUM DIHALIDE HAVING A GENERAL FORMULA OF ALR''X2 (WHEREIN R'' IS A HYDROCARBON RADICAL AND X IS A HALOGEN ATOM) AND SI(OC2H5)4,
Claim 6
Dependent Claim
48 words
A DIALKYLALUMINUM MONOHALIDE HAVING THE GENERAL FORMULA OF ALR2X (WHEREIN R IS A HYDROCARBON RADICAL AND X IS A HALOGEN ATOM) OR A COMBINATION OF AN ALKYLALUMINUM DIHALIDE HAVING A GENERAL FORMULA OF ALR''X2 (WHEREIN R'' IS A HYDROCARBON RADICAL AND X IS A HALOGEN ATOM) AND SI(OC2H5)4,
Claim 7
Dependent Claim
126 words
The method according to claim 1 wherein the titanium component is subjected to a heat treatment: a. at a temperature (T) which satisfies the conditions 120*C < or = T < or = 220*C., b. at a pressure (P) which satisfies the conditions 0.1 < or = P < or = 760 mmHg, c. for a time (Q) which satisfies the condition 3 minutes < or = Q < or = 300 minutes, AND wherein the following relationship between T, P and Q is maintained d. 9.09 X 10 3T - 2.39 X 10 4 P + 3.80 X 10 4 Q > or = 1 e. 3.78 X 10 3T + 2.70 X 10 4 P + 3.79 X 10 4 Q > or =
Claim 8
Dependent Claim
48 words
a dialkylaluminum monohalide having the general formula of AlR2X (wherein R is a hydrocarbon radical and X is a halogen atom) or a combination of an alkylaluminum dihalide having a general formula of AlR''X2 (wherein R'' is a hydrocarbon radical and X is a halogen atom) and Si(OC2H5)4,
Claim 9
Dependent Claim
48 words
a dialkylaluminum monohalide having the general formula of AlR2X (wherein R is a hydrocarbon radical and X is a halogen atom) or a combination of an alkylaluminum dihalide having a general formula of AlR''X2 (wherein R'' is a hydrocarbon radical and X is a halogen atom) and Si(OC2H5)4,
Claim 10
Dependent Claim
207 words
said size-controlled and heat-treated TiCl3.0.33AlCl3 being prepared by reacting TiCl4 with Al powders in a mol ratio of TiCl4 to Al greater than 3:1, removing unreacted TiCl4, size-controlling the resulting powders of TiCl3.0.33AlCl3 by ball-milling in a revolving or vibrating ball-mill containing the same or substantially the same size of steel or stainless steel balls having a diameter of 25 - 50 mm, at room temperature, to give size-controlled powders consisting of 50% or more of the particles of 325 meshes on and less than 50% of the particles of 325 meshes pass, and heat-treating the size-controlled powders: a. at a temperature (T) which satisfies the conditions 100*C < or = T < or = 250*C., b. at a pressure (P) which satisfies the conditions 0.01 mmHg < or = P < or = 760 mmHg, c. for a time (Q) which satisfies the condition 1 minute < or = Q < or = 300 minutes, and wherein the following relationship between T, P and Q is maintained: d. 9.52 X 10 3T - 6.26 X 10 5P + 3.98 X 10 4Q < or = 1 and e. 3.53 X 10 3T + 2.94 X 10 4P + 3.54 X 10 4Q < or = 1.
Claim 11
Dependent Claim
207 words
said size-controlled and heat-treated TiCl3.0.33AlCl3 being prepared by reacting TiCl4 with Al powders in a mol ratio of TiCl4 to Al greater than 3:1, removing unreacted TiCl4, size-controlling the resulting powders of TiCl3.0.33AlCl3 by ball-milling in a revolving or vibrating ball-mill containing the same or substantially the same size of steel or stainless steel balls having a diameter of 25 - 50 mm, at room temperature, to give size-controlled powders consisting of 50% or more of the particles of 325 meshes on and less than 50% of the particles of 325 meshes pass, and heat-treating the size-controlled powders: a. at a temperature (T) which satisfies the conditions 100*C < or = T < or = 250*C., b. at a pressure (P) which satisfies the conditions 0.01 mmHg < or = P < or = 760 mmHg, c. for a time (Q) which satisfies the condition 1 minute < or = Q < or = 300 minutes, and wherein the following relationship between T, P and Q is maintained: d. 9.52 X 10 3T - 6.26 X 10 5P + 3.98 X 10 4Q < or = 1 and e. 3.53 X 10 3T + 2.94 X 10 4P + 3.54 X 10 4Q < or = 1.
Claim 12
Dependent Claim
24 words
A process according to claim 1, wherein the organo-aluminum compund is diethylaluminum chloride, ethylaluminum dichloride plus Si(OC2H5)4, ethylaluminum sesquichloride, diisopropylaluminum chloride or diisobutylaluminum chloride.
Claim 13
Dependent Claim
164 words
SAID SIZE-CONTROLLED AND HEAT-TREATED TIC13.0.33ALCL3 BEING PREPARED BY REACHING TICL WITH AL1 POWDERS IN A MOL RATIO OF TICL4 TO A1 GREATER THAN 3:1, REMOVING UNREACTED TICL4, SIZE-CONTROLLING THE RESULTING POWDERS OF TICL3.0.33ALC13 BY BALL-MILLING IN A RELVOLVING OR VIBRATING BALL-MULL CONTAINING THE SAME OR SUBSTANTIALLY THE SAME SIZE OF STEEL OR STAINLESS STEEL BALLS HAVING A DIAMERER OF 25 - 50 MM, AT ROOM TEMPERATURE, TO GIVE SIZE-CONTROLLED POWDERS CONSISTING OF 50% OR MORE OF THE PARTICLES OF 325 MESHES ON AND LESS THAN 50% OF THE PARTICLES OF 325 MESHERS PASS, AND HEAT-TREATING THE SIZE-CONTROLLED POWDERS: A. AT A TEMPERATURE (T) WHICH ATISFIES THE CONDITIONS 100*C $ T $ 250*C., B. AT A PRESSURE (P) WHICH SATISFIES THE CONDITIONS 0.01 MMHG $ P $ 760 MMHG, C. FOR A TIME (Q) WHICH SATISFIES THE CONDITION 1 MINUTE $ Q $ 300 MINUTES, AND WHEREIN THE FOLLOWING RELATIONSHIP BETWEEN T, P AND Q IS MAINTAINED: D. 9.52X10**-3T-6.26X10**-5P+3.98X10**-4Q $ AND E. 3.53X10**3T+2.94X10**-4P+3.54X10**-4Q $ 1.
Claim 14
Dependent Claim
164 words
SAID SIZE-CONTROLLED AND HEAT-TREATED TIC13.0.33ALCL3 BEING PREPARED BY REACHING TICL WITH AL1 POWDERS IN A MOL RATIO OF TICL4 TO A1 GREATER THAN 3:1, REMOVING UNREACTED TICL4, SIZE-CONTROLLING THE RESULTING POWDERS OF TICL3.0.33ALC13 BY BALL-MILLING IN A RELVOLVING OR VIBRATING BALL-MULL CONTAINING THE SAME OR SUBSTANTIALLY THE SAME SIZE OF STEEL OR STAINLESS STEEL BALLS HAVING A DIAMERER OF 25 - 50 MM, AT ROOM TEMPERATURE, TO GIVE SIZE-CONTROLLED POWDERS CONSISTING OF 50% OR MORE OF THE PARTICLES OF 325 MESHES ON AND LESS THAN 50% OF THE PARTICLES OF 325 MESHERS PASS, AND HEAT-TREATING THE SIZE-CONTROLLED POWDERS: A. AT A TEMPERATURE (T) WHICH ATISFIES THE CONDITIONS 100*C $ T $ 250*C., B. AT A PRESSURE (P) WHICH SATISFIES THE CONDITIONS 0.01 MMHG $ P $ 760 MMHG, C. FOR A TIME (Q) WHICH SATISFIES THE CONDITION 1 MINUTE $ Q $ 300 MINUTES, AND WHEREIN THE FOLLOWING RELATIONSHIP BETWEEN T, P AND Q IS MAINTAINED: D. 9.52X10**-3T-6.26X10**-5P+3.98X10**-4Q $ AND E. 3.53X10**3T+2.94X10**-4P+3.54X10**-4Q $ 1.
Claim 15
Dependent Claim
23 words
A process according to claim 1 wherein the contacting is carried out at room temperature to 160*C under atmospheric pressure to 100 kg/cm2G.
Claim 16
Dependent Claim
21 words
A process according to claim 1 wherein said another Alpha -olefin is ethylene, butene-1, pentene-1, or 4-methylpentene-1 alone or in combination.
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) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |