WO2018213855A1 - A process for preparing a masterbatch and a masterbatch - Google Patents
A process for preparing a masterbatch and a masterbatch Download PDFInfo
- Publication number
- WO2018213855A1 WO2018213855A1 PCT/ZA2018/050023 ZA2018050023W WO2018213855A1 WO 2018213855 A1 WO2018213855 A1 WO 2018213855A1 ZA 2018050023 W ZA2018050023 W ZA 2018050023W WO 2018213855 A1 WO2018213855 A1 WO 2018213855A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- masterbatch
- pigment
- filler
- wax
- composition
- Prior art date
Links
Classifications
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- 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
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/22—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by pressing in moulds or between rollers
-
- 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
- C08J2391/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
- C08J2391/06—Waxes
Definitions
- the invention relates to a process for preparing a masterbatch, a masterbatch, and apparatus used for preparing a masterbatch.
- Plastics have a wide use and there are many types of industries from liquid containers to fibres. Many of the products are used in the fast moving consumer industry and require colour for visual presentation. It is the masterbatch industry that supplies the colour additives to the plastic industry and the pigment is commonly suspended in a polymer. Masterbatch manufacturers use high speed mixers or internal mixers to first mix the pigment and this is then fed through an extruder with high temperatures and high pressures to combine the pigments and the carrier and to form a granule.
- the ideal properties of the pigment are for a high dispersion in the base material, common problems are that the pigment or other materials are subject to high temperatures as well as high pressures to combine them, as well as high sheet in the initial stages, this leads to degradation of the material as well as reagromalation of the pigment. Dispersion is therefore reduced due to the non-uniform particle size in the material i.e., a mix with a one micron particle size ends up with a percentage of higher micro particles, thus affecting the final distribution. The final colour, tint strength are affected by these various processes.
- the inventor's previous patent ZA2010/00174 provides a masterbatch preparation process which includes: blending one or more of a molten wax and a non-wax polymer, and one or more liquid additives; l tempering the blend or cooling the blend to just above the congealing point thereof; solidifying the blend by cooling by dispensing the blend onto a cooled surface; and - comminuting said solidified blend.
- a masterbatch produced by this process blended with a Fisher Tropsch wax being highly crystalline and or brittle, can breakup with ease which helps with dispersion and ease of processing in the production but can pose problems in transport and dosing of the finished product. It is important for some users that the particle size, shape and weight stay constant.
- the invention proposes novel ways of reducing or even eliminating the problem stated above in maintaining the shape, size and weight.
- a masterbatch is used to colour plastics and add fillers and additives to plastics and the like.
- the carrier is a Fisher Tropsch wax.
- Fisher Tropsch wax is a low melting very low viscosity crystalline wax.
- the wax is the preferred carrier in the patent as it achieves high loading and dispersion of various chemicals fillers and pigments.
- the patent does cover various formula.
- a masterbatch with a composition of a wax and one or more of a pigment, a hardening agent, a binding agent, a coating agent, an additive, a filler, and a mineral oil.
- the filler may be a calcium carbonate or the like.
- the chemical may be selected from a UV stabilizer, an antistatic agent, an antifogging agent, or another chemical used in the production of masterbatches or plastics.
- the wax may be a Fischer Tropsch wax.
- the pigment and/or the filler and/or the chemical may be at least 10% up to 90% m/m.
- the mineral oil may be an agent that hardens, binds, coats and/or reduces brittleness in the said masterbatch, with a viscosity of the wax or higher in a molten or in its normal state being liquid, typically a silicon oil.
- the invention provides a masterbatch with a composition of:
- a wax typically a fisher Fischer Tropsch, a pigment and/or a filler and/or a chemical
- a hardening agent typically a low melt, high melt flow EVA ( ETHYLENE VINYL ACETATE).
- the masterbatch composition may include a wax, more specifically a Fischer Tropsch wax; - at least 10% to 90% m/m of a pigment and/or a filler and/or a chemical; and
- a hardening agent or polymer, or typically one or a combination of a polymer, copolymer, random copolymer, speciality polymer of at least 3% and up to 90% m/m of the composition.
- the masterbatch composition may include a wax, more specifically a Fisher Tropsch Fischer Tropsch wax;
- a binding agent typically a low melt, high melt flow elastomer of at least 3% and up to 90% m/m of the composition.
- the masterbatch composition may include a wax, more specifically a Fisher Tropsch wax;
- the masterbatch composition may include a wax, more specifically a Fisher Tropsch wax;
- a binding agent typically latex, of at least 3% and up to 90% m/m of the composition.
- the invention further provides a process of coating a masterbatch which includes one or more rollers having therein depressions or recesses wherein a masterbatch particle or pellet of a desired shape and size is formed.
- rollers there is at least 1 roller but more so 2 rollers, at least 1 of the said rollers having an impression where a shape may be formed, the said form would be of that which is common in the masterbatch industry.
- the said material can either be a liquid, molten form or hardened form.
- the harden form it may be of a pre extruded film.
- a molten or liquid form in a trough or heated pick-up trough or through a die from an extruder.
- the masterbatch may also be coated by way of spraying, or submerging in a bath and draining the said bath to leave a coating with any of the below materials in a suitable format i.e. molten or in solution or in a normal liquid state.
- a “pigment” means a colouring material, Carbon Black or a Titanium Dioxide.
- the masterbatch compositions may have the following formulations, all percentages being on a m/m basis:
- FIG. 1 is shown an example of an apparatus for carrying out the process of the invention, said apparatus including:
- FIG 2 is shown an example of an apparatus for carrying out the process of the invention, said apparatus including:
- FIG 3 is shown an example of an apparatus for carrying out the process of the invention, said apparatus including:
- E - material transferred to roller may be a liquid or cooled to form a film
- F - tray/trough may be heated
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Paints Or Removers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA2017/03320 | 2017-05-15 | ||
ZA201703320 | 2017-05-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018213855A1 true WO2018213855A1 (en) | 2018-11-22 |
Family
ID=64274764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ZA2018/050023 WO2018213855A1 (en) | 2017-05-15 | 2018-05-15 | A process for preparing a masterbatch and a masterbatch |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2018213855A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020217024A1 (en) * | 2019-04-26 | 2020-10-29 | Miyoshi Europe | Compound comprising a functional agent and a waxy matrix including an organosilicon material, and associated manufacturing method |
CN112080114A (en) * | 2020-09-21 | 2020-12-15 | 天元军融(辽宁)化工研究所新材料孵化器股份有限公司 | Degradable plastic master batch and preparation method of degradable plastic |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1966549A (en) * | 2006-11-02 | 2007-05-23 | 上海林达塑胶化工有限公司 | Filling agglomerate for plastic film and its preparation method |
US20100261810A1 (en) * | 2007-07-10 | 2010-10-14 | Lionel Nicholas Mantzivis | Masterbatch preparation process |
-
2018
- 2018-05-15 WO PCT/ZA2018/050023 patent/WO2018213855A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1966549A (en) * | 2006-11-02 | 2007-05-23 | 上海林达塑胶化工有限公司 | Filling agglomerate for plastic film and its preparation method |
US20100261810A1 (en) * | 2007-07-10 | 2010-10-14 | Lionel Nicholas Mantzivis | Masterbatch preparation process |
EP2173793B1 (en) * | 2007-07-10 | 2013-05-01 | Lionel Nicholas Mantzivis | Masterbatch preparation process |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020217024A1 (en) * | 2019-04-26 | 2020-10-29 | Miyoshi Europe | Compound comprising a functional agent and a waxy matrix including an organosilicon material, and associated manufacturing method |
FR3095341A1 (en) * | 2019-04-26 | 2020-10-30 | Miyoshi Europe | COMPOUND CONSISTING OF A FUNCTIONAL AGENT AND A WAX DIE INCLUDING AN ORGANOSILICIAL MATERIAL, AND RELATED MANUFACTURING PROCESS |
CN114040748A (en) * | 2019-04-26 | 2022-02-11 | 三好欧洲公司 | Composite comprising a functional agent and a waxy substrate containing organosilicon material and associated production method |
CN112080114A (en) * | 2020-09-21 | 2020-12-15 | 天元军融(辽宁)化工研究所新材料孵化器股份有限公司 | Degradable plastic master batch and preparation method of degradable plastic |
CN112080114B (en) * | 2020-09-21 | 2024-04-16 | 天元军融(辽宁)化工研究所新材料孵化器股份有限公司 | Degradable plastic master batch and preparation method of degradable plastic |
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