US3907759A
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US
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Catalyst for polymerization of olefins and process for polymerization of olefins with use of said catalyst
Assignee: Nissan Chemical Corp
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Filing: 1973-10-03
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Granted: 1975-09-23
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Expires: 1993-10-03
Abstract
Abstract A catalyst for polymerization of olefins comprising a solid catalyst component and an organic metal compound, said solid catalyst component being obtained by reacting a transition metal halogen compound with a reaction product between a Grignard reagent and an organic silicon compound selected from the group consisting of chain or cyclic hydropolysiloxanes having structural units expressed by the formula WHEREIN R is a member selected from the group consisting of alkyl groups, aryl groups, aralkyl groups and aryloxy groups, a is an integer of 0, 1 or 2, and b is an integer of 1, 2 or 3 with the proviso that the sum of a and b does not exceed 3, AND ORGANIC SILICON COMPOUNDS HAVING IN THE MOLECULE ORGANIC AND HYDROXYL GROUPS BONDED TO THE SILICON ATOM, AND A PROCESS FOR POLYMERIZATION OF OLEFINS WITH USE OF SUCH CATALYST.
Inventors
- 👤 Naotake Okada
- 👤 Kazumi Tsubaki
- 👤 Hiroshi Morinaga
- 👤 Takeshi Iwabuchi
- 👤 Masaru Iida
- 👤 Koichi Taguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:56
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/122; B01J31/14; B01J31/143; B01J31/16; B01J31/165; B01J31/1658; B01J31/1675; B01J31/26; B01J31/36; B01J31/38; C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
57 words
A CATALYST FOR POLYMERIZATION OF OLEFINS WHICH COMPRISES AN ORGAIC METAL COMPOUND AND A SOLID CATALYST COMPONENET OBTAINED BY REACTING A TRANSITION METAL HALOGEN COMPOUND WITH A REACTION PRODUCT BETWEEN AN ORGANIC SILICON COMPOUND SELECTED FROM THE GROUP CONSISTING OF CHAIN HYDROPOLYSILOXANES, CYCLIC HYDROPOLYSILOXAES AND ORGANIC AND HYDROXYL GROUPS BEARING ORGANIC SILICON COMPOUNDS AND A GRIGNARD REAGENT.
Claim 2
Dependent Claim
57 words
A CATALYST FOR POLYMERIZATION OF OLEFINS WHICH COMPRISES AN ORGAIC METAL COMPOUND AND A SOLID CATALYST COMPONENET OBTAINED BY REACTING A TRANSITION METAL HALOGEN COMPOUND WITH A REACTION PRODUCT BETWEEN AN ORGANIC SILICON COMPOUND SELECTED FROM THE GROUP CONSISTING OF CHAIN HYDROPOLYSILOXANES, CYCLIC HYDROPOLYSILOXAES AND ORGANIC AND HYDROXYL GROUPS BEARING ORGANIC SILICON COMPOUNDS AND A GRIGNARD REAGENT.
Claim 3
Dependent Claim
36 words
A catalyst for polymerization of olefins according to claim 1, wherein the hydropolysiloxane to be reacted with a Grignard reagent is selected from chain or cyclic hydropolysiloxanes having the structural units expressed by the general formula:
Claim 4
Dependent Claim
33 words
A catalyst for polymerization of olefin according to claim 2, the hydropolysiloxane to be reacted with a Grignard reagent is a member from tetramethyl disiloxane, dipheyldisiloxane, trimethylcyclotrisiloxane, tetramethylcyclotetrasiloxane, methylhydropolysiloxane, phenylhydroxypolysiloxane, ethoxyhydropolysiloxane and chlorophenylhydropolysiloxane.
Claim 5
Dependent Claim
63 words
A catalyst for polymerization of olefins according to claim 1, wherein the organic and hydroxy groups bearing organic silicon compound to be reacted with a Grignard reagent is a silane type compound having the formula: R''nSi(OH)4 n wherein R'' is a monovalent straight or branched hydrocarbon residue having 1 to 18 carbon atoms and n is an integer of 1, 2 or 3.
Claim 6
Dependent Claim
33 words
A catalyst for polymerization of olefins according to claim 4, wherein the silane type compound is a member from trimethylhydroxysilane, triethylhydroxysilane, triphenylhydroxysilane, methyldiphenylhydroxysilane, diethyldihydroxysilane, dipropyl dihydroxy silane, diallyldihydroxysilane, dicyclohexyldihydroxysilane, diphenyldihydroxysilane, butyltrihydroxysilane and phenyltrihydroxysilane.
Claim 7
Dependent Claim
63 words
A catalyst for polymerization of olefins according to claim 1, wherein the organic and hydroxyl groups bearing organic silicon compound is a member from straight, branched and cross linked polysiloxane compounds which are a condensate of silane type compounds of the formula: R''nSi(OH)4 n wherein R'' and n are the same as defined above and having the siloxane linkage (Si-O-Si) in the molecule.
Claim 8
Dependent Claim
36 words
A catalyst for polymerization of olefins according to claim 6, wherein the polysiloxane type compound is a member from Alpha , omega -dihydroxydimethylpolysiloxanes, Alpha , omega -dihydroxy diphenylpolysiloxanes and Alpha , omega -dihydroxy methyl phenyl polysiloxane.
Claim 9
Dependent Claim
32 words
A catalyst for polymerization of olefins according to claim 1, wherein the Grignard reagent is an organic magnesium compound obtained by reacting an organic halide with metallic magnesium or a magnesium alloy.
Claim 10
Dependent Claim
32 words
A catalyst for polymerization of olefins according to claim 1, wherein the transition metal halogen compound is a member selected from the group consisting of titanium halogen compounds and vanadium halogen compounds.
Claim 11
Dependent Claim
29 words
A catalyst for polymerization of olefins according to claim 1, wherein the organic metal compound is a member selected from the group consisting of organolauminum compounds and organozinc compounds.
Claim 12
Dependent Claim
68 words
A catalyst for polymerization of olefins according to claim 1, wherein the hydropolysiloxane is reacted with a Grignard reagent at a MgR:Si mole ratio of from 0.05:1 to 1:1 in a solvent at a temperature of 20* to 100*C. to form a reaction product and the reaction product is reacted with a transition metal halogen compound in the presence of a solvent to make a solid catalyst component.
Claim 13
Dependent Claim
68 words
A catalyst for polymerization of olefins according to clAim 1, wherein the silane type compound is reacted with a Grignard reagent at a MgR SiOH mole ratio of 0.05-1:1 in a solvent at a temperature of -50* to 100*C. to form a reaction product, and the reaction product is reacted with a transition metal halogen compound in the presence of a solvent to make a solid catalyst component.
Claim 14
Dependent Claim
68 words
A process for polymerization of olefins which comprises forming a polymerization catalyst system by mixing an organic metal compound with a solid reaction product composed of an organic silicon compound, a Grignard reagent and a transition metal halogen compound in a solvent, introducing an olefin in said polymerization catalyst system and polymerizing the olefin under atmospheric or elevated pressure at a temperature ranging from room temperature to 200*C.
Claim 15
Dependent Claim
68 words
A process for polymerization of olefins which comprises forming a polymerization catalyst system by mixing an organic metal compound with a solid reaction product composed of an organic silicon compound, a Grignard reagent and a transition metal halogen compound in a solvent, introducing an olefin in said polymerization catalyst system and polymerizing the olefin under atmospheric or elevated pressure at a temperature ranging from room temperature to 200*C.
Claim 16
Dependent Claim
15 words
A process according to claim 13, wherein the olefin monomer to be polymerized is ethylene.
Claim 17
Dependent Claim
28 words
A process according to claim 13, wherein ethylene is copolymerized with up to 10% of an Alpha -olefin selected from the group consisting of propylene, butene-1 and hexene-1.
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) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |