BE789870A - Olefins polymn catalyst - consisting of chromium oxide deposited on two silica supports with different pore volumes/sizes - Google Patents
Olefins polymn catalyst - consisting of chromium oxide deposited on two silica supports with different pore volumes/sizesInfo
- Publication number
- BE789870A BE789870A BE789870DA BE789870A BE 789870 A BE789870 A BE 789870A BE 789870D A BE789870D A BE 789870DA BE 789870 A BE789870 A BE 789870A
- Authority
- BE
- Belgium
- Prior art keywords
- chromium oxide
- olefins
- catalyst
- polymn
- sizes
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Catalysts (AREA)
Abstract
Olefins polymsn catalyst consists of (I) chromium oxide in a silica gel support having a pore volume of 2.00-3.00 pref. 2.5-3.00 cm3/g, most of the pores having a dia. of 200-600 pref. 300-600A, and a specific surface of 200-500 m2/g, and (II) chromium oxide on a silica gel support having a lower pore volume than that used in I, the major part of its pores having a smaller dia. than support I. Gives mixed polymers with good physical properties, esp. a high resistance to environmental stress cracking. Specif. 70% of the pores of the support of (I) have a dia. of 300-600A. The wt ratio of I:II is 80:20-20:80 pref. 50:50.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE789870 | 1972-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE789870A true BE789870A (en) | 1973-04-09 |
Family
ID=3860273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE789870D BE789870A (en) | 1972-10-09 | Olefins polymn catalyst - consisting of chromium oxide deposited on two silica supports with different pore volumes/sizes |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE789870A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0291824A3 (en) * | 1987-05-20 | 1990-12-19 | Quantum Chemical Corporation | Improved chromium catalyst compositions and polymerization utilizing same |
| WO1996021684A1 (en) * | 1995-01-09 | 1996-07-18 | W.R. Grace & Co.-Conn. | Multi-component polyolefin catalysts |
| EP0647661B2 (en) † | 1993-10-08 | 2002-01-23 | Phillips Petroleum Company | Chromium catalyst compositions and polymerization processes therewith |
| US6982304B2 (en) | 2003-12-22 | 2006-01-03 | Union Carbide Chemicals & Plastics Technology Corporation | Blow molding resins with improved ESCR |
-
0
- BE BE789870D patent/BE789870A/en unknown
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0291824A3 (en) * | 1987-05-20 | 1990-12-19 | Quantum Chemical Corporation | Improved chromium catalyst compositions and polymerization utilizing same |
| EP0647661B2 (en) † | 1993-10-08 | 2002-01-23 | Phillips Petroleum Company | Chromium catalyst compositions and polymerization processes therewith |
| WO1996021684A1 (en) * | 1995-01-09 | 1996-07-18 | W.R. Grace & Co.-Conn. | Multi-component polyolefin catalysts |
| US5714424A (en) * | 1995-01-09 | 1998-02-03 | W. R. Grace & Co.-Conn. | Multi-component polyolefin catalysts |
| US6982304B2 (en) | 2003-12-22 | 2006-01-03 | Union Carbide Chemicals & Plastics Technology Corporation | Blow molding resins with improved ESCR |
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