UST872005I4 - Defensive publication - Google Patents
Defensive publication Download PDFInfo
- Publication number
- UST872005I4 UST872005I4 US872005DH UST872005I4 US T872005 I4 UST872005 I4 US T872005I4 US 872005D H US872005D H US 872005DH US T872005 I4 UST872005 I4 US T872005I4
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- US
- United States
- Prior art keywords
- defensive publication
- alkali metal
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- defensive
- applications
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C08F10/04—Monomers containing three or four carbon atoms
- C08F10/06—Propene
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- 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)
Description
DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 O.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.
Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Oflice makes no assertion as to the novelty of the disclosed subject matter.
PUBLISHED MARCH 24, 1970 T872,005 NOVEL CATALYST SYSTEM AND OLEFIN POLYMERIZATION THEREWITI-I John A. Price, Swarthmore, Pa. (American Viscose Div., gig? Corporation, Post Road, Marcus Hook, Pa. Continuation-in-part of application Ser. No. 442,478, Mar. 24, 1965. This application July 22, 1969, Ser. No. 843,857
Int. Cl. C08f 1/56, 3/10 U.S. Cl. 26093.7 No Drawing. 8 Pages Specification Propylene or higher alpha-olefin is polymerized to predominantly crystalline high molecular weight polymers in the presence of an inert hydrocarbon diluent and a catalyst system consisting essentially of predominantly amorphous titanium trichloride, an alkali metal hydrocarbon compound, and either aluminum trichloride or aluminum tri-iodide, the mol ratios of Al to Ti and alkali metal to Al being in the range between 1:10 and 10: 1. Usually the mol ratio of Al to Ti is in the range between 1:5 and 5:1, preferably in the range between 1:2 and 2:1. The mol ratio of alkali metal to Al is usually in the range between 2:1 and 5:1, preferably in the range between 5:2 and 7:2. The alkali metal hydrocarbon compound contains no olefinic unsaturation, and may be for example a Li, Na or K alkyl, aryl or cycloalkyl. Alkali metal alkyls having a chain length of 1 to 8 carbon atoms are generally used; lower alkyl Li compounds containing 2 to 5 carbon atoms are preferred.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US84385769A | 1969-07-22 | 1969-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST872005I4 true UST872005I4 (en) | 1970-03-24 |
Family
ID=25291166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US872005D Pending UST872005I4 (en) | 1969-07-22 | 1969-07-22 | Defensive publication |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST872005I4 (en) |
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1969
- 1969-07-22 US US872005D patent/UST872005I4/en active Pending
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