CA1066833A - Viscosity-regulated masterbatches of pigments for colouring thermoplastics - Google Patents
Viscosity-regulated masterbatches of pigments for colouring thermoplasticsInfo
- Publication number
- CA1066833A CA1066833A CA247,048A CA247048A CA1066833A CA 1066833 A CA1066833 A CA 1066833A CA 247048 A CA247048 A CA 247048A CA 1066833 A CA1066833 A CA 1066833A
- Authority
- CA
- Canada
- Prior art keywords
- parts
- vinyl acetate
- pigment
- masterbatches
- ethylene
- 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
- C08J3/22—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
-
- 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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
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)
- Compositions Of Macromolecular Compounds (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Paints Or Removers (AREA)
Abstract
Viscosity-regulated masterbatches for colouring thermoplastics Abstract of the Disclosure Viscosity-regulated masterbatches which contain 10 to 49% of a pigment, 2 to 40% of a polyolefin wax, 20 to 85% of a copolymer of ethylene and vinyl acetate, and 0.5 to 10% of colloidal silicic acid.
Description
~6~1333 I~ is known to colour ~.hermoplastics by means o~ pigrllented plasticised compounds~ commonly known as masterbatches, or with pigment preparations, This method :is always employed whenever it is not possible to attain any satisfactory dis-tribution of the pigment in the end product in the given method o processing plastics granulates when pure pigments are used for the colouration, These masterbatches are normally composed of mainly inorganic pigments and a polymer of ~he same kind as that of the material to be coloured. Master-batches based on organic pigments usually contain very much lower concentrations of pigment.
Organic pigments in powder form have generally a substantially larger specific surface area than inorganic pigments and in addition exhibit much greater differPnces in behaviour during processing. In particular, they influence the so-called melt viscosity of high molecular weight polymers to a very much greater extent than inorganic pigmen~s, For practical reasons~ commercially available masterbatches which contain a polymer or a wax as carrier ma~erial are manuactured with a homogeneous pigment concentration for pigments which often vary very greatly in their behaviour.
This has the disadvantage that, during the processing to the end product~ the polymer to be coloured and the masterbatch used for the colouration have different melt viscosities, as
Organic pigments in powder form have generally a substantially larger specific surface area than inorganic pigments and in addition exhibit much greater differPnces in behaviour during processing. In particular, they influence the so-called melt viscosity of high molecular weight polymers to a very much greater extent than inorganic pigmen~s, For practical reasons~ commercially available masterbatches which contain a polymer or a wax as carrier ma~erial are manuactured with a homogeneous pigment concentration for pigments which often vary very greatly in their behaviour.
This has the disadvantage that, during the processing to the end product~ the polymer to be coloured and the masterbatch used for the colouration have different melt viscosities, as
- 2 _ ;6~33 a consequence o~ which the rap~d attaimnen~ of a homogeneous Einal colouration is hampered or even prevented. Additional steps are ~hen necessary to attain the desired homogen~ity.
A urther disadvantage of the commercially available master-batches is to be observed in the fact that they can be used in each case only for one particular polymer and one particu-lar method of processing. This means a large number of pro-ducts for the ultimate processer.
The present invention provides ~iscosity-regulated master-batches which are substantially free of the shoxtcomings mentioned above and which contain to 49% of a pigment 2 - to 40% of a polyolefin wax to 85% of a copolymer of ethylene and vinyl acetate, and O. 5 to 10% of a colloidal silicic acld.
Preferred masterbatches are those which con~ain to 30% of a pigment to 20% of a polyolefin wag to 65% of a copolymer of ethyl-ene and vinyl acetate and
A urther disadvantage of the commercially available master-batches is to be observed in the fact that they can be used in each case only for one particular polymer and one particu-lar method of processing. This means a large number of pro-ducts for the ultimate processer.
The present invention provides ~iscosity-regulated master-batches which are substantially free of the shoxtcomings mentioned above and which contain to 49% of a pigment 2 - to 40% of a polyolefin wax to 85% of a copolymer of ethylene and vinyl acetate, and O. 5 to 10% of a colloidal silicic acld.
Preferred masterbatches are those which con~ain to 30% of a pigment to 20% of a polyolefin wag to 65% of a copolymer of ethyl-ene and vinyl acetate and
3 to 8% of a colloidal silicic acid.
The pigments on which the masterbatches are based can be~ or example~ inorganic pigments~ such as carbon black, ~itanium dioxide9 iron oxidey chromium oxide green, molybdate orange or ultramarine _ 3 _ ,,.. . . ~ . , , .,, , - ............................ .
: ~ ~. ...... , -;6~333 Organic pigrnents~ however, are preferred. These can belong to the most widely different chemical classes. Examples of suc~
pigments are: azo, methineg azomethine, phthalocyanine, nitro, perinone, perylenetetracarboxylic acid derivatives, dioxazine, ~hioindigo, iminoisoindolinone or quinacridone pigments, as well as metal complex pigmen~s of the most widely different chemical nature. It is also possible to use mixtures of different pigments.
As copolymers of ethylene and vinyl acetate there are pree_ rably used those which contain 15 to 40% of vinyl acetate.
As polyolefin waxes there are preferably used those with a ~-molecular weight of 500 to lO,000, in particular of 3000 to 9000. Polyethylene, polypropylene or polyisobutylene wax may be mentioned as examples.
The particle siæe of the colloidal silicic acid of silicon dioxide is advantageously between 8 and 60 nm3 preferably between 10 and 30 nm.
The masterbatches are obtained by intimately mixing, in parti-cular by kneading, the components It is especially;advantageous to convert the co~ponents into a;homogeneous mixtu~e in a mixer, for example a PElugschar mixer9 at 50_400 revolutions per minute for 5 to 30 minutes, and to process this mixture to a granulate in a con~inuousIy .
~6~313 operating kneading extruder at temperatures between 1.20 and A further preferred method o~ manufacture consists in mixing the components in a fast rotating ~luid mixer at 400_3000 revo-lutions per minute for 2 to 20 minutes and subsequently granu_ lating the mixtur~ in a doublè screw extruder with a large length/diameter ratio and/or with kneading elements, at tempe-ratures between 120 and 260C, in particular bet~een 120 and 260C.
Mast~rbatches are obtained in the fonm of break_resis~ant and abrasion_resistant granulates of readily con~rollable fonn an~
size They can be conveyed pneumatically and stored without problems arising. They are characterised by a very wide applicability. Whereas the majority of the masterbatches currently on the market are suitable only for coIouring one :
polymer, the preparations of the present invention can be used for inCOL~pOratiOn in the most widely diEerent kinds of plas~
tic materials, in particular in polyoleins, polyvinyl chloride7 polystyrene copolymers, polyamides ~nd thermoplastic polyesters ': . ' '~: ' .
A further~material advantage of the masterbatches of this in- -.
vention is that the melt viscosit~ can be adjusted to the desired opt~mum value by vaxying on the one hand the amounts .. .
o~ viscosity-lowering polyole~în wax and on the other Qf ~ , -3L~6~33 viscosity-increasing silica gel. The often consi.dcrably varying ef~ect on ~he melt vi.scosity exerted by orgal~ic pigments can thereby be compensated, and this makes it possible to create a range o masterbatches which is charac_ terised by a uniform rheological behaviour, In the following Examples the parts and percen~ages are by weight, unless indicated to the contrary.
:; : ' ~ ~ . . ..
~ 6 ~6~333 ~E~ :
65 parts of an ethylene/vinyl acetate copolymer ~trade mark:
Microthene MU 760), 5 parts of a polyethylene wax (e.g. poly~
ethylene wax 190-Plv.) and 10 parts oE a colloidal silicon dioxide are mixed with 20 parts of the a7o pigment C.I~ Red 144 for 10 minutes in a Pflugschar ~ixer~ ~ -The mixture is kneaded in a continuous kneader (system Lis~) ;
at cylinder temperatures of 120-180C and converted into a granulate. Ihe end product has a melt index of 32.6. Then 2~5 parts of the masterbatch are mixed in a drum with -9705 parts of a polyethylene with a ~elt flow index of 2 and the mixture is blo~n to sheets in an extruder. Sh&ets of a homo-geneous colo~r are obtainedO
: :'.
~!i!~ ' . :' . :
65 parts of an ethylene/vinyl acetate copolymer (trade mark:
Microthene MU 760)~ 10 parts of a polyethylene wax and 5 parts of a colloidal silicon dioxlde are mixed with 20 parts of the azo pigment C.I. Yellow 93 for 10 minutes in a ~ lugschar mixer. The mixture is kneaded in a continuous kneader (system Lis~) at temperatures of 180-240C and converted into a granulate.
: .
~ The end pr~duct has a mel~ index of 28. Five parts of this :
product a~e mix~d with 95 parts of a polyvinyl chloride with : ,, - ' . '. - '' ' '.
',-,.... ..
- 7 _ ~
8~3 a K-value of 70 and a plasticiser content of 35% and rolled to a sheet, The sheet has a homogeneous colour.
To colour poly~ers in powder form lt is advantageous to comminuce the preparations obtained isl Example 1 or 2 by appropriate methods uncil the required par~is:le size is obtained, preferably by low temperature grinding.
.
~ .
65 parts of an ethylene/vinyl acetate copolymer (trade mark~
Microthene MU 760), 10 parts of a polyethylene wax and 5 parts of a colloidal silicon dioxide are mixed with 20 parts of the azo pigmenc C.I. Red 166 for 2 minutes in a fluid mixer. The mixture is kneated in a con~inuo~s double-shaft kneader (type Leistrit~ at temperatures of 140-180C and converted into a granulate. The end product has a melt index o~ 51. Five parts of~this product are mixed wlth 95 parts of a polye~hylene terephthalate~and spun at 295C in an extruderO The filament obtained has a uniform colouration of excellent fastness ~ .
propertiesO
:~ : :: : ~ , .
~: ~ ' . -8 - ;
~ . . ' .
6~333 57.4 parts of an ethylene/vinyl acetate copolymer ~trade mark:
Microthene MU 760), 17.5 parts of a polyethylene wax and 5 parts of ~ colloidal silicon dioxide are mixed with 20 parts ;~
of the phthalocyanine pigment C.I~ Blue 15 for 10 minutes in a Pflugschar mixerO The mixeure is kneaded in a continuous kneader (system List) at temperatures of 160 to 200 C and converted into a granulate. The end product has a melt index of 35. one part of this product i5 mixed with 99 parts of a polyamide and injection moulded in a screw injection ~oulding machine. Blue moulded pieces o~ homogenous colouration are obtained.
',- ,..
~e~
.
The following ~able shows with reference to three pigmen~s ,, how on the one hand the melt index can be lowered by increasing the content Oe silicic acid and On the other can be raised by increasing the wa~ content.
: ~ ... ..
: :: : . .:
_ 9 ~ ~ , :~66Z333 _ _ _ CDI. Pigment CoI~ Pigment C.I. Pism~nt .
~ed 144 Green 7 _ Black 7 No MFI5 MFI5 _ _ _ _ _ _ 80 parts of ethylene/
5 vinyl acetate copolymer 42.3 33.9 _ ~0 parts of pigment 75 parts of ethylenet vinyl acetate copolymer 6 20 parts of pig~ent 35.6 25~6 _ 5 pares of colloidal sio2 70 parts of ethylene/
vinyl acetate copolymer 7 20 parts of pigment 24.1 20.5 _ 10 parts of colloidal sio2 75 parts of ethylene/
vinyl acetate copolymer 8 20 parts of pigment 47.5 41.3 _ ..
5 parts of polyethylene i .
wax 70 parts of ethylene/
vinyl acetate copolymer 9 20 parts of pigment 58.7 51.4 _ 10 parts of polyethylene wax 60 parts of ethylene/
: vinyl acetate copolymer 10 20 parts of pigment 86~8 80.1 20 parts of polyethylene .
wax 60 parts of ethylene/
: 11 vinyl acetate copoly~er _ _ 4.5 : .
: 40 parts of pigment -50 parts of ethylene/ :
~ vinyl acetate copolymer :
:: 12 40 parts of pigment _ _ 4.7 ~: :
~ : ~; 10 parts o- polyethylene ~ ;
~ ~ '.''',''~"
~ ~ , : ,:~
.
~: , ',,:
:
~: :
' ~'' ~(~,66833 `
. _ .. _. . .. _ _ C.I. Pigment C.I. Pigment CoI~ Pigment ::
No Red 144 Gre~n 7 Black 7 ~FI5 MFII- MFI
_ _ _ _ ~ ~ . 5 40 parts of ethylene/
vinyl acetate copolymer : :
13 40 parts of pigment _ 10.2 -20 parts of polyethylene 20 parts of ethylene/ . . .-vinyl acetate copolymer 14 40 parts of pigment _ _ 19.3 40 parts of polye~hylene .~
* Melt flow index accordlng to ASTM 1238~62 ~ , ' .
325 kg of an ethylene/vinyl acetate copolymer (trade mark:
Microthene MU 760)~ 50 kg of a polyethylene wax and 25 g of a colloidal silicic acid are mixed ~ith 100 kg of the disazo plgment C.I. Yellow 93 for 15 minutes at 100 rpm in a 2000 litre capacity Pflugschar mixer. The mixture is kneaded in a double-shaf~ kneader at temperatures between 100C and 250C and converted into a granulate. : ~.
'~ ' .' ', Ibe end product has a melt index of 47. T~o parts of this product are mixed with 98 parts of a styrene/butadlene copolymer and extruded to a sheet~ The extruded sheet has a u~iform ~olouratlonO ;.
' ''' '. ' ':
: .: ~
The pigments on which the masterbatches are based can be~ or example~ inorganic pigments~ such as carbon black, ~itanium dioxide9 iron oxidey chromium oxide green, molybdate orange or ultramarine _ 3 _ ,,.. . . ~ . , , .,, , - ............................ .
: ~ ~. ...... , -;6~333 Organic pigrnents~ however, are preferred. These can belong to the most widely different chemical classes. Examples of suc~
pigments are: azo, methineg azomethine, phthalocyanine, nitro, perinone, perylenetetracarboxylic acid derivatives, dioxazine, ~hioindigo, iminoisoindolinone or quinacridone pigments, as well as metal complex pigmen~s of the most widely different chemical nature. It is also possible to use mixtures of different pigments.
As copolymers of ethylene and vinyl acetate there are pree_ rably used those which contain 15 to 40% of vinyl acetate.
As polyolefin waxes there are preferably used those with a ~-molecular weight of 500 to lO,000, in particular of 3000 to 9000. Polyethylene, polypropylene or polyisobutylene wax may be mentioned as examples.
The particle siæe of the colloidal silicic acid of silicon dioxide is advantageously between 8 and 60 nm3 preferably between 10 and 30 nm.
The masterbatches are obtained by intimately mixing, in parti-cular by kneading, the components It is especially;advantageous to convert the co~ponents into a;homogeneous mixtu~e in a mixer, for example a PElugschar mixer9 at 50_400 revolutions per minute for 5 to 30 minutes, and to process this mixture to a granulate in a con~inuousIy .
~6~313 operating kneading extruder at temperatures between 1.20 and A further preferred method o~ manufacture consists in mixing the components in a fast rotating ~luid mixer at 400_3000 revo-lutions per minute for 2 to 20 minutes and subsequently granu_ lating the mixtur~ in a doublè screw extruder with a large length/diameter ratio and/or with kneading elements, at tempe-ratures between 120 and 260C, in particular bet~een 120 and 260C.
Mast~rbatches are obtained in the fonm of break_resis~ant and abrasion_resistant granulates of readily con~rollable fonn an~
size They can be conveyed pneumatically and stored without problems arising. They are characterised by a very wide applicability. Whereas the majority of the masterbatches currently on the market are suitable only for coIouring one :
polymer, the preparations of the present invention can be used for inCOL~pOratiOn in the most widely diEerent kinds of plas~
tic materials, in particular in polyoleins, polyvinyl chloride7 polystyrene copolymers, polyamides ~nd thermoplastic polyesters ': . ' '~: ' .
A further~material advantage of the masterbatches of this in- -.
vention is that the melt viscosit~ can be adjusted to the desired opt~mum value by vaxying on the one hand the amounts .. .
o~ viscosity-lowering polyole~în wax and on the other Qf ~ , -3L~6~33 viscosity-increasing silica gel. The often consi.dcrably varying ef~ect on ~he melt vi.scosity exerted by orgal~ic pigments can thereby be compensated, and this makes it possible to create a range o masterbatches which is charac_ terised by a uniform rheological behaviour, In the following Examples the parts and percen~ages are by weight, unless indicated to the contrary.
:; : ' ~ ~ . . ..
~ 6 ~6~333 ~E~ :
65 parts of an ethylene/vinyl acetate copolymer ~trade mark:
Microthene MU 760), 5 parts of a polyethylene wax (e.g. poly~
ethylene wax 190-Plv.) and 10 parts oE a colloidal silicon dioxide are mixed with 20 parts of the a7o pigment C.I~ Red 144 for 10 minutes in a Pflugschar ~ixer~ ~ -The mixture is kneaded in a continuous kneader (system Lis~) ;
at cylinder temperatures of 120-180C and converted into a granulate. Ihe end product has a melt index of 32.6. Then 2~5 parts of the masterbatch are mixed in a drum with -9705 parts of a polyethylene with a ~elt flow index of 2 and the mixture is blo~n to sheets in an extruder. Sh&ets of a homo-geneous colo~r are obtainedO
: :'.
~!i!~ ' . :' . :
65 parts of an ethylene/vinyl acetate copolymer (trade mark:
Microthene MU 760)~ 10 parts of a polyethylene wax and 5 parts of a colloidal silicon dioxlde are mixed with 20 parts of the azo pigment C.I. Yellow 93 for 10 minutes in a ~ lugschar mixer. The mixture is kneaded in a continuous kneader (system Lis~) at temperatures of 180-240C and converted into a granulate.
: .
~ The end pr~duct has a mel~ index of 28. Five parts of this :
product a~e mix~d with 95 parts of a polyvinyl chloride with : ,, - ' . '. - '' ' '.
',-,.... ..
- 7 _ ~
8~3 a K-value of 70 and a plasticiser content of 35% and rolled to a sheet, The sheet has a homogeneous colour.
To colour poly~ers in powder form lt is advantageous to comminuce the preparations obtained isl Example 1 or 2 by appropriate methods uncil the required par~is:le size is obtained, preferably by low temperature grinding.
.
~ .
65 parts of an ethylene/vinyl acetate copolymer (trade mark~
Microthene MU 760), 10 parts of a polyethylene wax and 5 parts of a colloidal silicon dioxide are mixed with 20 parts of the azo pigmenc C.I. Red 166 for 2 minutes in a fluid mixer. The mixture is kneated in a con~inuo~s double-shaft kneader (type Leistrit~ at temperatures of 140-180C and converted into a granulate. The end product has a melt index o~ 51. Five parts of~this product are mixed wlth 95 parts of a polye~hylene terephthalate~and spun at 295C in an extruderO The filament obtained has a uniform colouration of excellent fastness ~ .
propertiesO
:~ : :: : ~ , .
~: ~ ' . -8 - ;
~ . . ' .
6~333 57.4 parts of an ethylene/vinyl acetate copolymer ~trade mark:
Microthene MU 760), 17.5 parts of a polyethylene wax and 5 parts of ~ colloidal silicon dioxide are mixed with 20 parts ;~
of the phthalocyanine pigment C.I~ Blue 15 for 10 minutes in a Pflugschar mixerO The mixeure is kneaded in a continuous kneader (system List) at temperatures of 160 to 200 C and converted into a granulate. The end product has a melt index of 35. one part of this product i5 mixed with 99 parts of a polyamide and injection moulded in a screw injection ~oulding machine. Blue moulded pieces o~ homogenous colouration are obtained.
',- ,..
~e~
.
The following ~able shows with reference to three pigmen~s ,, how on the one hand the melt index can be lowered by increasing the content Oe silicic acid and On the other can be raised by increasing the wa~ content.
: ~ ... ..
: :: : . .:
_ 9 ~ ~ , :~66Z333 _ _ _ CDI. Pigment CoI~ Pigment C.I. Pism~nt .
~ed 144 Green 7 _ Black 7 No MFI5 MFI5 _ _ _ _ _ _ 80 parts of ethylene/
5 vinyl acetate copolymer 42.3 33.9 _ ~0 parts of pigment 75 parts of ethylenet vinyl acetate copolymer 6 20 parts of pig~ent 35.6 25~6 _ 5 pares of colloidal sio2 70 parts of ethylene/
vinyl acetate copolymer 7 20 parts of pigment 24.1 20.5 _ 10 parts of colloidal sio2 75 parts of ethylene/
vinyl acetate copolymer 8 20 parts of pigment 47.5 41.3 _ ..
5 parts of polyethylene i .
wax 70 parts of ethylene/
vinyl acetate copolymer 9 20 parts of pigment 58.7 51.4 _ 10 parts of polyethylene wax 60 parts of ethylene/
: vinyl acetate copolymer 10 20 parts of pigment 86~8 80.1 20 parts of polyethylene .
wax 60 parts of ethylene/
: 11 vinyl acetate copoly~er _ _ 4.5 : .
: 40 parts of pigment -50 parts of ethylene/ :
~ vinyl acetate copolymer :
:: 12 40 parts of pigment _ _ 4.7 ~: :
~ : ~; 10 parts o- polyethylene ~ ;
~ ~ '.''',''~"
~ ~ , : ,:~
.
~: , ',,:
:
~: :
' ~'' ~(~,66833 `
. _ .. _. . .. _ _ C.I. Pigment C.I. Pigment CoI~ Pigment ::
No Red 144 Gre~n 7 Black 7 ~FI5 MFII- MFI
_ _ _ _ ~ ~ . 5 40 parts of ethylene/
vinyl acetate copolymer : :
13 40 parts of pigment _ 10.2 -20 parts of polyethylene 20 parts of ethylene/ . . .-vinyl acetate copolymer 14 40 parts of pigment _ _ 19.3 40 parts of polye~hylene .~
* Melt flow index accordlng to ASTM 1238~62 ~ , ' .
325 kg of an ethylene/vinyl acetate copolymer (trade mark:
Microthene MU 760)~ 50 kg of a polyethylene wax and 25 g of a colloidal silicic acid are mixed ~ith 100 kg of the disazo plgment C.I. Yellow 93 for 15 minutes at 100 rpm in a 2000 litre capacity Pflugschar mixer. The mixture is kneaded in a double-shaf~ kneader at temperatures between 100C and 250C and converted into a granulate. : ~.
'~ ' .' ', Ibe end product has a melt index of 47. T~o parts of this product are mixed with 98 parts of a styrene/butadlene copolymer and extruded to a sheet~ The extruded sheet has a u~iform ~olouratlonO ;.
' ''' '. ' ':
: .: ~
Claims (8)
1. Viscosity-regulated masterbatches which contain 10 to 49% of a pigment, 2 to 40% of a polyolefin wax, 20 to 85% of a copolymer of ethylene and vinyl acetate, and 0.5 to 10% of colloidal silicic acid.
2. Masterbatches according to claim 1, which contain 15 to 30% of a pigment, 5 to 20% of a polyolefin wax, 35 to 65% of a copolymer of ethylene and vinyl acetate, and 3 to 8% of colloidal silicic acid.
3. Masterbatches according to claim 1, which contain a polyethylene wax as polyolefin wax.
4. Masterbatches according to claim 1,which contain an ethyl/vinyl acetate copolymer with a vinyl acetate content of 15 to 40%.
5. A process for the manufacture of viscosity regulated masterbatches according to claim 17 wherein 10 to 49 parts of a pigment are intimately mixed with 2 to 40 parts of a polyolefin wax and 20 to 85 parts of a copolymer of ethylene and vinyl acetate and 0.5 to 10 parts of a colloidal silicic acid.
6. A process according to claim 5, wherein a start is made from 15 to 30 parts of a pigment, 5 to 20 parts of a poly-olefin wax, 35 to 65 parts of a copolymer of ethylene and vinyl acetate, and 3 to 8 parts of a colloidal silicic acid.
7. A process according to claim 5, wherein a polyethylene wax is used as polyolefin wax.
8. A process according to claim 5, which comprises the use of an ethylene/vinyl acetate copolymer with a vinyl acetate content of 15 to 40%.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH276075A CH613988A5 (en) | 1975-03-05 | 1975-03-05 | Viscosity-controlled pigment concentrates and process for their preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1066833A true CA1066833A (en) | 1979-11-20 |
Family
ID=4240991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA247,048A Expired CA1066833A (en) | 1975-03-05 | 1976-03-03 | Viscosity-regulated masterbatches of pigments for colouring thermoplastics |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS51115553A (en) |
| AU (1) | AU501576B2 (en) |
| BE (1) | BE839167A (en) |
| BR (1) | BR7601311A (en) |
| CA (1) | CA1066833A (en) |
| CH (1) | CH613988A5 (en) |
| DE (1) | DE2608600A1 (en) |
| DK (1) | DK92976A (en) |
| ES (1) | ES445754A1 (en) |
| FR (1) | FR2303057A1 (en) |
| GB (1) | GB1510560A (en) |
| NL (1) | NL7602213A (en) |
| SE (1) | SE408649B (en) |
| SU (1) | SU646919A3 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2460311A1 (en) * | 1979-06-28 | 1981-01-23 | Bouheben Guy | Solid colourant concentrate for thermoplastic resins - contg. mineral diluent, additives and low viscosity thermo-fusible binder |
| JPS5647435A (en) * | 1979-09-26 | 1981-04-30 | Japan Synthetic Rubber Co Ltd | Coloring of rubber-modified thermoplastic resin |
| JPS596225A (en) * | 1982-07-02 | 1984-01-13 | Toyo Ink Mfg Co Ltd | Coloring composition |
| JPS60229939A (en) * | 1984-04-27 | 1985-11-15 | Tokai Rubber Ind Ltd | Paraffin composition for compounding rubber |
| US4820346A (en) * | 1985-06-25 | 1989-04-11 | Howtek, Inc. | Ink jet printer ink |
| GB2235691A (en) * | 1989-09-04 | 1991-03-13 | Du Pont Canada | Concentrates of modifying agents in polymers |
| GB9524588D0 (en) * | 1995-12-01 | 1996-02-21 | Cookson Matthey Ceramics Plc | Pigmentary material |
| ATE276321T1 (en) * | 2000-06-20 | 2004-10-15 | Basf Ag | PIGMENT CONCENTRATES AND METHOD FOR THE PRODUCTION THEREOF |
-
1975
- 1975-03-05 CH CH276075A patent/CH613988A5/en not_active IP Right Cessation
-
1976
- 1976-02-26 SE SE7602527A patent/SE408649B/en unknown
- 1976-03-02 DE DE19762608600 patent/DE2608600A1/en not_active Withdrawn
- 1976-03-02 SU SU762327452A patent/SU646919A3/en active
- 1976-03-03 CA CA247,048A patent/CA1066833A/en not_active Expired
- 1976-03-03 NL NL7602213A patent/NL7602213A/en not_active Application Discontinuation
- 1976-03-04 DK DK92976*#A patent/DK92976A/en unknown
- 1976-03-04 GB GB8620/76A patent/GB1510560A/en not_active Expired
- 1976-03-04 BE BE164834A patent/BE839167A/en unknown
- 1976-03-04 AU AU11690/76A patent/AU501576B2/en not_active Expired
- 1976-03-04 BR BR7601311A patent/BR7601311A/en unknown
- 1976-03-05 JP JP51024051A patent/JPS51115553A/en active Pending
- 1976-03-05 FR FR7606284A patent/FR2303057A1/en active Granted
-
1977
- 1977-05-16 ES ES0445754A patent/ES445754A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2303057B1 (en) | 1979-04-06 |
| AU501576B2 (en) | 1979-06-21 |
| SE7602527L (en) | 1976-09-06 |
| DK92976A (en) | 1976-09-06 |
| DE2608600A1 (en) | 1976-09-16 |
| CH613988A5 (en) | 1979-10-31 |
| JPS51115553A (en) | 1976-10-12 |
| SE408649B (en) | 1979-06-25 |
| AU1169076A (en) | 1977-09-08 |
| NL7602213A (en) | 1976-09-07 |
| GB1510560A (en) | 1978-05-10 |
| FR2303057A1 (en) | 1976-10-01 |
| ES445754A1 (en) | 1977-10-16 |
| BE839167A (en) | 1976-09-06 |
| SU646919A3 (en) | 1979-02-05 |
| BR7601311A (en) | 1976-09-14 |
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