GB869151A - A process for the production of shaped products from linear high molecular weight polymers of olefinically unsaturated hydrocarbons - Google Patents
A process for the production of shaped products from linear high molecular weight polymers of olefinically unsaturated hydrocarbonsInfo
- Publication number
- GB869151A GB869151A GB33641/58A GB3364158A GB869151A GB 869151 A GB869151 A GB 869151A GB 33641/58 A GB33641/58 A GB 33641/58A GB 3364158 A GB3364158 A GB 3364158A GB 869151 A GB869151 A GB 869151A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polymer
- molecular weight
- temperatures
- mixture
- high molecular
- 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
- 238000000034 method Methods 0.000 title abstract 3
- 229920006158 high molecular weight polymer Polymers 0.000 title abstract 2
- 229930195735 unsaturated hydrocarbon Natural products 0.000 title 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 3
- 238000009835 boiling Methods 0.000 abstract 3
- 229930195733 hydrocarbon Natural products 0.000 abstract 3
- 150000002430 hydrocarbons Chemical class 0.000 abstract 3
- 229920000642 polymer Polymers 0.000 abstract 3
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 abstract 3
- 239000004215 Carbon black (E152) Substances 0.000 abstract 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 abstract 2
- 125000003118 aryl group Chemical group 0.000 abstract 2
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- -1 polypropylene Polymers 0.000 abstract 2
- 239000008096 xylene Substances 0.000 abstract 2
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000008187 granular material Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 239000013557 residual solvent Substances 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000011877 solvent mixture Substances 0.000 abstract 1
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 abstract 1
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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Artificial Filaments (AREA)
Abstract
Films and filaments &c. are produced from linear high molecular weight polymers, such as polypropylene, produced by a low-pressure catalytic process from olefines by mixing the polymer with 5% to 60% of its weight of an aliphatic, aromatic or hydroaromatic hydrocarbon or mixture of hydrocarbons which has a boiling point or boiling range between 100 DEG C. and 215 DEG C. and which dissolves the polymer at elevated temperatures but not at ordinary temperatures, maintaining the polymer-solvent mixture at 120 DEG -180 DEG C. until a gel is formed, extruding the gel to form rods, subjecting them to a further shaping process either immediately or after comminution at a temperature 10 DEG to 30 DEG C. higher than the gelling temperature, and then removing residual solvent from the film or filaments &c. The solvent may be an aromatic or hydroaromatic hydrocarbon substituted in the nucleus by one or more aliphatic hydrocarbon radicals having 1 to 4 carbon atoms. Alternatively it may be a petroleum spirit fraction having a boiling range between 100 DEG C. and 185 DEG C., or toluene, xylene, decalin or tetralin. In an example, a mixture of 70 parts of a lowpressure polyethylene having a molecular weight of 250,000 and 30 parts of xylene are gelled and extruded to form rods by means of a doublescrew extruder maintained at 125 DEG -160 DEG C. The rods are granulated after cooling and the granulated material extruded through an annular orifice by means of a single-screw extruder at temperatures maintained in successive sections of 140 DEG -170 DEG C. and 170 DEG -160 DEG C. to form tubes which are inflated to form tubular films. The process of the invention permits of the use of lower extrusion temperatures and consequently reduces decomposition of the polymer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE869151X | 1957-11-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB869151A true GB869151A (en) | 1961-05-31 |
Family
ID=6802793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33641/58A Expired GB869151A (en) | 1957-11-05 | 1958-10-21 | A process for the production of shaped products from linear high molecular weight polymers of olefinically unsaturated hydrocarbons |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE571115A (en) |
| FR (1) | FR1202571A (en) |
| GB (1) | GB869151A (en) |
| IT (1) | IT596938A (en) |
-
0
- IT IT596938D patent/IT596938A/it unknown
- BE BE571115D patent/BE571115A/xx unknown
-
1958
- 1958-09-15 FR FR1202571D patent/FR1202571A/en not_active Expired
- 1958-10-21 GB GB33641/58A patent/GB869151A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE571115A (en) | |
| FR1202571A (en) | 1960-01-12 |
| IT596938A (en) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3086242A (en) | Process and apparatus for producing materials having plastic memory | |
| DE2401948C3 (en) | Process for the production of hollow bodies from thermoplastic material | |
| US2961711A (en) | Process for strengthening hollow bodies of plastic material | |
| US3137745A (en) | Method of forming hollow plastic articles | |
| US4460750A (en) | Process for the treatment of linear low density polyethylene by organic peroxides which generate free radicals | |
| Manley et al. | The effects of varying peroxide concentration in crosslinked linear polyethylene | |
| US4419309A (en) | Polystyrene foam extrusion into a foam assisting atmosphere | |
| GB1428891A (en) | Process for the modification of thermoplastic material and apparatus therefor | |
| EP0376064B1 (en) | Method for producing a foamed resin | |
| GB921308A (en) | Process for producing polymeric tubular films | |
| GB1021623A (en) | A process for manufacturing films of expanded polystyrene | |
| CZ172190A3 (en) | Matted stretched packaging material and process for producing thereof | |
| US3399250A (en) | Film comprising polyethylene and an ethylene-vinyl acetate copolymer | |
| GB1050164A (en) | ||
| US3225127A (en) | Blow molding foam bottles | |
| GB954254A (en) | Improvements in or relating to linear organic thermoplastic film manufacture | |
| US3944530A (en) | Article made of propylene-ethylene copolymer | |
| US2384224A (en) | Extrusion of thermoplastic materials | |
| KR950026648A (en) | Molding method using waste tire | |
| KR890004071B1 (en) | Method for preparing polyolefin gel having high tensile strength and modulus | |
| US3896198A (en) | Process for producing a foamed polyolefin insulated conductor | |
| GB869151A (en) | A process for the production of shaped products from linear high molecular weight polymers of olefinically unsaturated hydrocarbons | |
| US3632264A (en) | Neck-forming collet having alternate inverted wedge-shaped jaws | |
| US4923654A (en) | Blowing agent for expandable polymeric foams | |
| DE2019945A1 (en) | Polystyrene moulding materials for prepnof foam bodies |