US4398006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing polybutene-1
Assignee: Nissan Chemical Corp
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Filing: 1981-07-02
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Granted: 1983-08-09
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Expires: 2001-07-02
Abstract
Abstract Butene-1 is polymerized in the presence of a catalytic system comprising a solid catalytic component (A), a trialkylaluminum compound (B), an organic acid ester (C), and an organoaluminum compound (D) at a molar ratio of (D) to (B) ranging 0.1 to 10 wherein said solid catalytic component (A) is obtained by reacting a reaction product (a) of a Grignard reagent with a chain or cyclic hydropolysiloxane having the unit ##EQU1## (R 1 represents an alkyl, aryl, aralkyl, alkoxy or aryloxy group; a is 0, 1 or 2; b is 1, 2 or 3 and a+b≦3) with at least one compound having the formula R.sub.n.sup.2 M(.sup.(z) X.sub.z-n (R 2 represents a C 1 to C 12 hydrocarbon moiety; M represents Al or Si; z represents atomic value of 3 or 4; X represents a halogen atom; n is 0, 1-(z-1) to obtain a reaction product (b) and further reacting said reaction product (b) with at least one titanium halide in the presence of an organic acid ester.
Inventors
- 👤 Kazumi Tsubaki
- 👤 Noriaki Koto
- 👤 Toyohiko Abe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:20
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
206 words
A process for producing polybutene-1 which comprises polymerizing butene-1 in the presence of a catalytic amount of a catalyst system comprising a solid catalytic component (A) obtained by reacting a reaction product (a) of a Grignard reagent with a chain or cyclic hydropolysiloxane having the unit ##EQU4## (R 1 represents an alkyl, aryl, aralkyl, alkoxy or aryloxy group; a is 0, 1 or 2; b is 1, 2 or 3 and a+b≦3) with at least one compound having the formula R.sup.2.sub.n M.sup.(z) X.sub.z-n (R 2 represents a C 1 to C 12 hydrocarbon moiety; M represents Al or Si; z represents atomic value of 3 or 4; X represents a halogen atom; n is 0, 1 . . . (z-1)) to obtain a reaction product (b) and further reacting said reaction product (b) with at least one titanium halide in the presence of an organic acid ester to produce said solid catalytic component (A), and further comprising a trialkylaluminum compound (B), an organic acid ester (C); and an organoaluminum compound (D) having the formula AlR.sup.3.sub.2 Cl (R 3 represents a C 1 to C 8 hydrocarbon moiety), at a molar ratio of said organoaluminum compound (D) to said trialkylaluminum compound (B) ranging from 0.1 to 10.
Claim 2
Dependent Claim
206 words
A process for producing polybutene-1 which comprises polymerizing butene-1 in the presence of a catalytic amount of a catalyst system comprising a solid catalytic component (A) obtained by reacting a reaction product (a) of a Grignard reagent with a chain or cyclic hydropolysiloxane having the unit ##EQU4## (R 1 represents an alkyl, aryl, aralkyl, alkoxy or aryloxy group; a is 0, 1 or 2; b is 1, 2 or 3 and a+b≦3) with at least one compound having the formula R.sup.2.sub.n M.sup.(z) X.sub.z-n (R 2 represents a C 1 to C 12 hydrocarbon moiety; M represents Al or Si; z represents atomic value of 3 or 4; X represents a halogen atom; n is 0, 1 . . . (z-1)) to obtain a reaction product (b) and further reacting said reaction product (b) with at least one titanium halide in the presence of an organic acid ester to produce said solid catalytic component (A), and further comprising a trialkylaluminum compound (B), an organic acid ester (C); and an organoaluminum compound (D) having the formula AlR.sup.3.sub.2 Cl (R 3 represents a C 1 to C 8 hydrocarbon moiety), at a molar ratio of said organoaluminum compound (D) to said trialkylaluminum compound (B) ranging from 0.1 to 10.
Claim 3
Dependent Claim
12 words
A process according to claim 1 wherein the hydropolysilozane is methyl hydropolysiloxane.
Claim 4
Dependent Claim
23 words
A process according to claim 1 wherein the Grignard reagent is an organomagnesium compound obtained by reacting an organic halide with magnesium metal.
Claim 5
Dependent Claim
21 words
A process according to claim 1 wherein the compound having the formula R.sup.2.sub.n M.sup.(z) X.sub.z-n is aluminum chloride or silicon tetrachloride.
Claim 6
Dependent Claim
17 words
A process according to claim 1 wherein the organic acid ester is an aromatic monocarboxylic acid ester.
Claim 7
Dependent Claim
38 words
A process according to claim 1 wherein the amount of the compound having the formula R.sup.2.sub.n M.sup.(z) X.sub.z-n is in a range of 0.1 to 10 mole per 1 mole of Mg component in the reaction product (a).
Claim 8
Dependent Claim
13 words
A process according to claim 1 wherein the titanium halide is titanium tetrachloride.
Claim 9
Dependent Claim
44 words
A process according to claim 1 wherein said trialkylaluminum compound (B) is a compound having the formula AlR.sup.6 R.sup.7 R.sup.8 wherein R 6 , R 7 and R 8 are the same or different and respectively represent a C 1 -C 8 hydrocarbon moiety.
Claim 10
Dependent Claim
23 words
A process according to claim 8 wherein said trialkylaluminum compound having the formula AlR 6 R 7 R 8 is triethylaluminum or triisobutylaluminum.
Claim 11
Dependent Claim
14 words
A process according to claim 1 wherein said organoaluminum compound (D) is diethylaluminum chloride.
Claim 12
Dependent Claim
18 words
A process according to claim 1 wherein said organic acid ester (c) is an aromatic monocarboxylic acid ester.
Claim 13
Dependent Claim
33 words
A process according to claim 1 wherein the solid catalytic component (A) is treated with titanium tetrachloride before combining it with trialkyl aluminum compound (B), organic acid ester (C) and organoaluminum compound (D).
Claim 14
Dependent Claim
29 words
A process according to claim 1 wherein said organoaluminum compound (D) is selected from the group consisting of dimethylaluminum chloride, diethylaluminum chloride, dibutylaluminum chloride, dihexylaluminum chloride, and dioctylaluminum chloride.
Claim 15
Dependent Claim
14 words
A process according to claim 1 wherein said organoaluminum compound (D) is diethylaluminum chloride.
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) | 1986-08-08 | 1987-02-07 | 1987-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-08 | 1991-02-07 | 1991-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-08 | 1995-02-07 | 1995-08-09 | $7700.00 | Window Closed / Lapsed |