US3846392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing cycloolefines
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1972-09-11
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Granted: 1974-11-05
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Expires: 1992-09-11
Abstract
Abstract Method of polymerizing cycloolefines by solution polymerization using a cataylst obtained by reacting an oxide of a transition metal of group VI and a Lewis acid, adding an inert solvent thereto and using the supernatant liquid or filtrate as the catalyst. An organometallic compound of a metal of group I through IV may be added to the reaction product. A halogenated hydrocarbon may also be added thereto.
Inventors
- 👤 S Matsumura
- 👤 I Hatano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:55
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/04; C08G61/06; C08G61/08; C08F; C08F10/00; C08F32/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
138 words
A METHOD OF MANUFACTURING POLYMER WHEREIN A CYCLOOLENE OF 4-5 CARBON ATOMS OR MORE THAN 7 CARBON ATOMS HAVING AT LEAST ONE DOUBLE BOND IN A RING IS POLYMERIZED IN AN INERT SOLVENT AT A TEMPERATURE OF FROM -50*C TO 80*C USING AN INERT SOLVENT SOLUBLE HOMOGENEOUS CATALYST COMPONENT (A) PRODUCED BY REACTING OXIDE OF TUNGSTEN OR MOLYBDENUM AND LEWIS ACID IN A HALOGENATED HYDROCARBON AT A TEMPERATURE OF 0*C OR MORE OR USING A CATALYST SYSTEM WHEREIN SAID CAYALYST COMPONENT (A) IS COMBINED WITH AB ORGANOMETALLIC COMPOUND (B) INCLUDING A METAL OF GROUP 1 THROUGH GROUP IV, WHEREIN A MOLAR RATIO OF TUNGSTEN OR MOLYBDENUM IN THE COMPONENT (A) TO SAID ORGANOMETALLIC COMPOUND (B) IS 1:(0.1 TO 50), AND WHEREIN A MOLE RATIO OF TUNGSTEN OR MOLYBDENUM IN 1314THE COMPONENT (A) TO CYCLOPENTENE IS 1:(5,000 TO 10,000).
Claim 2
Independent Claim
138 words
A METHOD OF MANUFACTURING POLYMER WHEREIN A CYCLOOLENE OF 4-5 CARBON ATOMS OR MORE THAN 7 CARBON ATOMS HAVING AT LEAST ONE DOUBLE BOND IN A RING IS POLYMERIZED IN AN INERT SOLVENT AT A TEMPERATURE OF FROM -50*C TO 80*C USING AN INERT SOLVENT SOLUBLE HOMOGENEOUS CATALYST COMPONENT (A) PRODUCED BY REACTING OXIDE OF TUNGSTEN OR MOLYBDENUM AND LEWIS ACID IN A HALOGENATED HYDROCARBON AT A TEMPERATURE OF 0*C OR MORE OR USING A CATALYST SYSTEM WHEREIN SAID CAYALYST COMPONENT (A) IS COMBINED WITH AB ORGANOMETALLIC COMPOUND (B) INCLUDING A METAL OF GROUP 1 THROUGH GROUP IV, WHEREIN A MOLAR RATIO OF TUNGSTEN OR MOLYBDENUM IN THE COMPONENT (A) TO SAID ORGANOMETALLIC COMPOUND (B) IS 1:(0.1 TO 50), AND WHEREIN A MOLE RATIO OF TUNGSTEN OR MOLYBDENUM IN 1314THE COMPONENT (A) TO CYCLOPENTENE IS 1:(5,000 TO 10,000).
Claim 3
Dependent Claim
35 words
Method of claim 1, wherein said halogenated hydrocarbon is one or more selected from the group consisting of chlorobenzene, O-dichlorobenzene, m-dichlorobenzene, p-dichlorobenzene, bromobenzene, tetrachloroethylene, and trichloroethylene or mixture of said halogenated hydrocarbon and inert hydrocarbon.
Claim 4
Dependent Claim
28 words
Method of claim 1, wherein said inert solvent is selected from the group consisting of n-hexane, cyclopentane, cyclohexane, benzene, toluene, xylene, chlorobenzene, methylene chloride, chloroform and mixtures thereof.
Claim 5
Dependent Claim
27 words
Method of claim 1, wherein said halogenated hydrocarbon is mixed with an aliphatic hydrocarbon selected from the group consisting of pentane, hexane, cyclopentane, cyclohexane and mixtures thereof.
Claim 6
Dependent Claim
23 words
Method of claim 1, wherein halogenated hydrocarbon is in an amount of below 10:1 mole ratio to said metal of tungsten or molybdenum.
Claim 7
Dependent Claim
15 words
Method of claim 1, wherein said polymerization temperature is between about -20*C and about 30*C.
Claim 8
Dependent Claim
22 words
Method of claim 1, wherein said inert solvent and product are aged at a temperature of from room temperature to about 250*C.
Claim 9
Dependent Claim
28 words
Method of claim 1 wherein said organometallic compound is selected from the group consisting of C2H5AlCl2, (C2H5)2 AlCl, (C2H5)3 Al2Cl3, C2H5Al Br2,/(C4H9)3 Al, (i-C4H9)3 Al, and mixtures thereof.
Claim 10
Dependent Claim
32 words
Method of claim 1, wherein said Lewis acid is selected from the group consisting of aluminum chloride, aluminum bromide, aluminum iodide, boron trichloride, titanium tetrachloride, stannic chloride, vanadyl trichloride and mixtures thereof.
Claim 11
Dependent Claim
65 words
Method of polymerizing a cycloolefine of 4-5 carbon atoms or 7 or more carbon atoms having at least one double bond in a ring according to claim 1, comprising using a solution catalyst comprising an inert solvent and dissolved therein a product resulting from reaction of oxides of titanium or molybdenum and a Lewis acid, said solution catalyst being the resulting supernatant liquor or filtrate.
Claim 12
Dependent Claim
20 words
Method of claim 10 wherein said product is heated in said inert solvent and excess solids are removed by filtration.
References Cited (Backward Citations)
US3074918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |