GB771955A - Production of pigmented polymers of ethylene - Google Patents
Production of pigmented polymers of ethyleneInfo
- Publication number
- GB771955A GB771955A GB31446/55A GB3144655A GB771955A GB 771955 A GB771955 A GB 771955A GB 31446/55 A GB31446/55 A GB 31446/55A GB 3144655 A GB3144655 A GB 3144655A GB 771955 A GB771955 A GB 771955A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pigment
- mixing
- polymer
- pressure
- melting
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/201—Pre-melted polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Pigmented polymers of ethylene or copolymers containing at least 90 per cent by weight of ethylene are prepared by intensively mixing the polymer under pressure in a totally enclosed chamber until the temperature has risen above the melting-point, adding the finely-divided pigment to the molten material and mixing the pigment therewith in the chamber under pressure, e.g. at least 25 p.s.i. at least until the temperature of the mixture is above the melting-point of the polymer. The polymer may be mixed with the pressure released after melting and prior to the addition of the pigment, and the mixing may be stopped during the addition of pigment and gradually resumed. After mixing the pigment and polymer under pressure the pressure may be released and the mixing continued. Carbon black, ultramarine blue, cadmium red, phthalocyanine green, and titanium dioxide are mentioned and amounts of 0.01 to equal parts of pigment to polymer may be used. A suitable mixer has an enclosed chamber fitted with rotors having different peripheral speeds, e.g. a Banbury type mixer having a pressure head or ram inserted in the hopper.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US771955XA | 1954-11-04 | 1954-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB771955A true GB771955A (en) | 1957-04-10 |
Family
ID=22136622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31446/55A Expired GB771955A (en) | 1954-11-04 | 1955-11-03 | Production of pigmented polymers of ethylene |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB771955A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2991264A (en) * | 1957-05-01 | 1961-07-04 | Du Pont | Method of partially crystallizing an alpha-olefin polymer |
| US3078250A (en) * | 1957-05-14 | 1963-02-19 | Sun Oil Co | Reducing flammability of polypropylene by blending the same with titanium dioxide |
| US3080335A (en) * | 1960-02-29 | 1963-03-05 | Celanese Corp | Use of ammonia-yielding compounds in the pigmenting of thermoplastic resins and methods therefor |
| US3127368A (en) * | 1964-03-31 | Process for the production of homoge- | ||
| EP0042627A1 (en) * | 1980-06-25 | 1981-12-30 | Elkem Metals Company | Improved color pigment for use in the production of thermoplastic articles |
| US4480064A (en) * | 1980-06-25 | 1984-10-30 | Elkem Metals Company | Color pigment for use in the production of thermoplastic articles |
| GB2202539A (en) * | 1987-01-28 | 1988-09-28 | Du Pont Canada | Polyolefin melt blending |
-
1955
- 1955-11-03 GB GB31446/55A patent/GB771955A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3127368A (en) * | 1964-03-31 | Process for the production of homoge- | ||
| US2991264A (en) * | 1957-05-01 | 1961-07-04 | Du Pont | Method of partially crystallizing an alpha-olefin polymer |
| US3078250A (en) * | 1957-05-14 | 1963-02-19 | Sun Oil Co | Reducing flammability of polypropylene by blending the same with titanium dioxide |
| US3080335A (en) * | 1960-02-29 | 1963-03-05 | Celanese Corp | Use of ammonia-yielding compounds in the pigmenting of thermoplastic resins and methods therefor |
| EP0042627A1 (en) * | 1980-06-25 | 1981-12-30 | Elkem Metals Company | Improved color pigment for use in the production of thermoplastic articles |
| US4480064A (en) * | 1980-06-25 | 1984-10-30 | Elkem Metals Company | Color pigment for use in the production of thermoplastic articles |
| GB2202539A (en) * | 1987-01-28 | 1988-09-28 | Du Pont Canada | Polyolefin melt blending |
| GB2202539B (en) * | 1987-01-28 | 1991-07-03 | Du Pont Canada | Polyolefin concentrate |
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