Patent EP0021753A1 successfully refreshed from Google Patents.
EP0021753A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method for production of highly crystalline olefin polymers
Assignee: Sumitomo Chemical Co Ltd
•
Filing: 1980-06-16
•
Granted: —
•
Expires: 2000-06-16
Abstract
Abstract Method of polymerizing or copolymerizing olefins using a novel catalyst system comprising… (A) a halogen compound of trivalent titanium,… (B) an organo-aluminum compound of the formula,… R3(m + n)AIYmXn… wherein Y is a group having at least one atom of oxygen, nitrogen, sulfur or phosphorus atoms linked to the aluminum atom, R is a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms, an alkenyl group having from 2 to 18 carbon atoms, a cycloalkyl group having from 3 to 18 carbon atoms, an aryl group having from 6 to 18 carbon atoms, or an aralkyl group having from 7 to 18 carbon atoms, X is a halogen atom, and m and n are numbers satisfying the equation, 0<m<1, 0</=n<2, 0<m + n</=2, and… (C) an electron-donor.… This method can give highly crystalline olefin polymers having a broad molecular weight distribution.
Inventors
- 👤 Akinobu Shiga
- 👤 Yoshiharu Fukui
- 👤 Toshio Sasaki
- 👤 Masahisa Okawa
- 👤 Hideaki Matsuura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 16:45
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
133 words
A method for producing highly crystalline olefin polymers which is characterized by polymerizing or copolymerizing olefins using a catalyst system comprising: (A) a halogen compound of trivalent titanium, (B) an organo-aluminum compound of the formula, wherein Y is a group having at least one atom of oxygen, nitrogen, sulfur or phosphorus linked to the aluminum atom, R is a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms, an alkenyl group having from 2 to 18 carbon atoms, a cycloalkyl group having from 3 to 18 carbon atoms, an aryl group having from 6 to 18 carbon atoms, or an aralkyl group having from 7 to 18 carbon atoms, X is a halogen atom, and m and n are numbers satisfying the equations, 0<m<1, 0≦n<2, 0<m+n≦2, and (C) an electron-donor.
Claim 2
Independent Claim
133 words
A method for producing highly crystalline olefin polymers which is characterized by polymerizing or copolymerizing olefins using a catalyst system comprising: (A) a halogen compound of trivalent titanium, (B) an organo-aluminum compound of the formula, wherein Y is a group having at least one atom of oxygen, nitrogen, sulfur or phosphorus linked to the aluminum atom, R is a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms, an alkenyl group having from 2 to 18 carbon atoms, a cycloalkyl group having from 3 to 18 carbon atoms, an aryl group having from 6 to 18 carbon atoms, or an aralkyl group having from 7 to 18 carbon atoms, X is a halogen atom, and m and n are numbers satisfying the equations, 0<m<1, 0≦n<2, 0<m+n≦2, and (C) an electron-donor.
Claim 3
Dependent Claim
15 words
A method according to Claim 1, wherein halogen compound of trivalent titanium is titanium trichloride.
Claim 4
Dependent Claim
18 words
A method according to Claim 1 or claim 2, wherein m and n are numbers satisfying the equations,
Claim 5
Dependent Claim
15 words
A method according to Claim 3, wherein m and n are numbers satisfying the equations,
Claim 6
Dependent Claim
103 words
A method according to Claim 1, wherein Y is a group of the formula O R 1 , N R 2 R 3 , OOCR 4 ' OSiR 5 R 6 R 7 , SR 8 or PR 9 R 10 wherein R to R 10 are each independently a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms, an alkenyl group having from 2 to 18 carbon atoms, a cycloalkyl group having from 3 to 18 carbon atoms, an aryl group having from 6 to 18 carbon atoms, or an aralkyl group having from 7 to 18 carbon atoms.
Claim 7
Dependent Claim
74 words
A method according to Claim 5, wherein Y is OR1, NR 2 R 3 , OOCR 4 and OSiR 5 R 6 R 7 , wherein R 1 to R 4 are each independently an alkyl group having from 1 to 18 carbon atoms or an allyl group and R 5 to R 7 are each independently a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms or an allyl group.
Claim 8
Independent Claim
31 words
A method according to any one of the preceding claims wherein the electron-donor is an oxygen-containing organic compound, a nitrogen-containing organic compound, a phosphorus-containing organic compound or a sulfur-containing organic compound.
Claim 9
Dependent Claim
29 words
A method according to Claim 7, wherein the electron-donor is an ester, a phosphine, a phosphite, a phosphate, an amine, an amide, a sulfite, a ketone or an aldehyde.
Claim 10
Dependent Claim
14 words
A method according to Claim 2, wherein the titanium trichloride is aluminum-containing titanium trichloride.
Claim 11
Dependent Claim
23 words
A method according to Claim 9, wherein the aluminum-containing titanium trichloride is d; γ- or δ- type titanium trichloride of a violet color.
Claim 12
Independent Claim
28 words
A method according to any one of the preceding claims, wherein the molar ratio of electron-donor to organo-aluminum compound is from 0.01 : 1 to 1 : 1.
Claim 13
Independent Claim
32 words
A method according to any one of the preceding claims, wherein the molar ratio of organo-aluminum compound to halogen compound of trivalent titanium is from 0.5 : 1 to 200 : 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.