Patent US4565798A successfully refreshed from Google Patents.
US4565798A
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Process for polymerization of olefins
Assignee: Tonen General Sekiyu KK
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Filing: 1984-11-19
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Granted: 1986-01-21
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Expires: 2004-11-19
Abstract
Abstract A process for polymerizing olefins in the presence of a catalyst composed of: (A) a catalyst component obtained by contacting with one another, (a) a magnesium alkoxide, (b) a silicon compound having a hydrogen-silicon bond, (c) an electron donor compound, and (d) a titanium compound (B) an organic compound of a metal of Groups I and III of the Periodic Table, and (C) an organo silicon compound represented by the formula Rq9SiXg2(OR10)k wherein R9 and R10 are the same or different hydrocarbon groups, X2 is a halogen atom, 0</=q<4, 0</=g<4, 0<k</=4, and q+g+k=4.
Inventors
- 👤 Tadashi Yamamoto
- 👤 Hiroyuki Furuhashi
- 👤 Masafumi Imai
- 👤 Hiroshi Ueno
- 👤 Naomi Inaba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:42
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
99 words
A catalyst for polymerizing olefins, said catalyst composed of (A) a titanium-containing catalyst component obtained by contacting with one another, (a) a magnesium dialkoxide, (b) a silane having at least one hydrogen-silicon bond, and (c) an electron donor compound, and (d) a titanium compound, (B) an organic compound of a metal of Groups I and III of the Periodic Table, and (C) an organo silicon compound represented by the formula R p SiX m (OR') n wherein R and R' are the same or different C 1-20 hydrocarbon groups, X is a halogen atom, 0≦p<4, 0≦m<4, 0<n≦4, and p+m+n=4.
Claim 2
Dependent Claim
99 words
A catalyst for polymerizing olefins, said catalyst composed of (A) a titanium-containing catalyst component obtained by contacting with one another, (a) a magnesium dialkoxide, (b) a silane having at least one hydrogen-silicon bond, and (c) an electron donor compound, and (d) a titanium compound, (B) an organic compound of a metal of Groups I and III of the Periodic Table, and (C) an organo silicon compound represented by the formula R p SiX m (OR') n wherein R and R' are the same or different C 1-20 hydrocarbon groups, X is a halogen atom, 0≦p<4, 0≦m<4, 0<n≦4, and p+m+n=4.
Claim 3
Dependent Claim
31 words
The catalyst of claim 1 wherein the magnesium alkoxide and the silicon compound having the hydrogen-silicon bond are reacted together prior to contact with the electron donor and the titanium compound.
Claim 4
Dependent Claim
22 words
The catalyst of claim 2 wherein the silicon compound having the hydrogen-silicon bond is trichlorosilane and the magnesium dialkoxide is magnesium diethoxide.
Claim 5
Dependent Claim
51 words
The catalyst of claim 1 wherein the organic compound is an organoaluminum compound represented by the formula R w 8 AlX'" 3-w wherein R 8 is an alkyl or aryl group X'" is a halogen atom alkoxyl group, or hydrogen atom and w is any number in the range of 1≦w≦3.
Claim 6
Dependent Claim
13 words
The catalyst of claim 4 wherein the organoaluminum compound is a aluminum trialky.
Claim 7
Dependent Claim
17 words
The catalyst of claim 5 wherein the aluminum trialkyl is one of triethyl aluminum or triisobutyl aluminum.
Claim 8
Dependent Claim
35 words
The catalyst of claim 1 wherein the silicon compound is selected from ethyl triethoxy silane, vinyl triethoxy silane, phenyl trimethoxy silane, phenyl triethoxy silane, dipenyl dimethoxy silane, methyl phenyl dimethoxy silane, and chlorophenyl diethoxy silane.
Claim 9
Dependent Claim
53 words
The catalyst of claim 1 wherein the electron donor is selected from carboxylic acids, carboxylic acid anhydrides, carboxylate ester, carboxylic acid halides, alcohols, ethers, ketones, amines, amides, nitriles, aldehydes, alcoholates, phosphoamides, thioethers, thioesters, carbonate esters, and compound of phosporus, arsenic, or antimony attached to an organic group through a carbon or oxygen atom.
Claim 10
Dependent Claim
25 words
The catalyst of claim 8 wherein the electron donor is selected from carboxylic acids, carboxylic acid anhydrides, carboxylate esters, halogenated carboxylic acids, alcohols, and ethers.
Claim 11
Dependent Claim
21 words
The catalyst of claim 9 wherein the electron donor is ethyl benzoate, diisobutylphathalate, di-m-butylphthalate, phthalic anhydride, phthalic acid, or phthaloyl chloride.
Claim 12
Dependent Claim
13 words
The catalyst of claim 3 wherein the titanium compound is TiCl 4 .
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1989-01-20 | 1989-07-22 | 1990-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-20 | 1993-07-22 | 1994-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-20 | 1997-07-22 | 1998-01-21 | $7700.00 | Window Closed / Lapsed |