GB1108295A - Process for the production of wax-like ethylene polymers and ethylene co-polymers of low molecular weight - Google Patents
Process for the production of wax-like ethylene polymers and ethylene co-polymers of low molecular weightInfo
- Publication number
- GB1108295A GB1108295A GB35888/65A GB3588865A GB1108295A GB 1108295 A GB1108295 A GB 1108295A GB 35888/65 A GB35888/65 A GB 35888/65A GB 3588865 A GB3588865 A GB 3588865A GB 1108295 A GB1108295 A GB 1108295A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ethylene
- molecular weight
- polymers
- decomposition
- wax
- 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
- 229920000573 polyethylene Polymers 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 3
- 229920001038 ethylene copolymer Polymers 0.000 title 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 3
- 239000005977 Ethylene Substances 0.000 abstract 3
- 229920001577 copolymer Polymers 0.000 abstract 3
- 238000000354 decomposition reaction Methods 0.000 abstract 3
- 239000004698 Polyethylene Substances 0.000 abstract 2
- -1 polyethylene Polymers 0.000 abstract 2
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 abstract 1
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 229940117927 ethylene oxide Drugs 0.000 abstract 1
- 229920001519 homopolymer Polymers 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000005979 thermal decomposition reaction Methods 0.000 abstract 1
- 239000001993 wax Substances 0.000 abstract 1
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
- C08F8/00—Chemical modification by after-treatment
- C08F8/50—Partial depolymerisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/802—Heating
-
- 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
- C08F2810/00—Chemical modification of a polymer
- C08F2810/10—Chemical modification of a polymer including a reactive processing step which leads, inter alia, to morphological and/or rheological modifications, e.g. visbreaking
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Wax-like ethylene polymers of low molecular weight and predominantly linear are prepared by the thermal decomposition of ethylene polymers of high molecular weight and to some extent ramiform, said decomposition being carried out in an atmosphere free of air and oxidizing agents, the polymer to be decomposed being mixed with a melt of already decomposed ethylene polymer, and the decomposition being then carried out at 300 DEG to 600 DEG C. for 30 seconds to 5 hours. The process may be applied to ethylene homopolymers and copolymers, batchwise or continuously, and radical forming agents and molecular weight regulators may be added before or during the decomposition. The process may be effected in a stirred vessel in the lower part of which may be a coiled flow pipe through which the product may be withdrawn and passed to a granulating device. Examples describe the preparation of waxes from (1, 4 and 6 to 9) polyethylene, (2) an ethylene/vinyl acetate copolymer, (3) polyethylene in the presence of dicumyl peroxide, and (5) an ethylene/carbon monoxide copolymer. The products may be used in polishes and for coating paper.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEV0028426 | 1965-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1108295A true GB1108295A (en) | 1968-04-03 |
Family
ID=7584128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35888/65A Expired GB1108295A (en) | 1965-05-11 | 1965-08-20 | Process for the production of wax-like ethylene polymers and ethylene co-polymers of low molecular weight |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1645609A1 (en) |
| GB (1) | GB1108295A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2136437A (en) * | 1983-03-07 | 1984-09-19 | Rinne K T I Kabushiki Kaisha | Method and equipment for manufacturing paraffin wax-like substances |
| EP0687692A1 (en) | 1994-06-16 | 1995-12-20 | BP Chemicals Limited | Chlonine-containing polymer waste processing |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3003768A1 (en) * | 1980-02-01 | 1981-08-06 | Ljudmila Konstantinovna Ašichmina | METHOD FOR THE CONTINUOUS PRODUCTION OF POLYOLEFIN WAX |
| DE3642266A1 (en) * | 1986-12-11 | 1987-04-23 | Rauer Kurt | DEGRADATION OF POLYETHYLENE BY MEANS OF RADICAL IMAGES |
| DE10022669C2 (en) * | 2000-05-10 | 2002-04-18 | Paraffinwerk Webau Gmbh | Process for the production of high molecular waxes from polyolefins |
| DE10037225A1 (en) * | 2000-07-31 | 2002-03-28 | Paraffinwerk Webau Gmbh | Production of high-melting waxes, useful as asphalt and bitumen additives, involves cracking comminuted polyolefins in absence of oxygen |
| DE10037230A1 (en) * | 2000-07-31 | 2002-03-28 | Paraffinwerk Webau Gmbh | Production of high-melting waxes, useful as asphalt and bitumen additives, involves cracking molten polyolefins in absence of oxygen |
-
1965
- 1965-05-11 DE DE19651645609 patent/DE1645609A1/en active Pending
- 1965-08-20 GB GB35888/65A patent/GB1108295A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2136437A (en) * | 1983-03-07 | 1984-09-19 | Rinne K T I Kabushiki Kaisha | Method and equipment for manufacturing paraffin wax-like substances |
| EP0687692A1 (en) | 1994-06-16 | 1995-12-20 | BP Chemicals Limited | Chlonine-containing polymer waste processing |
| US5821395A (en) * | 1994-06-16 | 1998-10-13 | Bp Chemicals Limited | Waste processing |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1645609A1 (en) | 1970-05-21 |
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