GB2165850A - Precolored polyamide molding composition - Google Patents
Precolored polyamide molding composition Download PDFInfo
- Publication number
- GB2165850A GB2165850A GB08519950A GB8519950A GB2165850A GB 2165850 A GB2165850 A GB 2165850A GB 08519950 A GB08519950 A GB 08519950A GB 8519950 A GB8519950 A GB 8519950A GB 2165850 A GB2165850 A GB 2165850A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nylon
- bis
- polyamide
- precolored
- composition
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Precolored polyamide molding composition contains a polyamide resin, a dye or a pigment, and additionally a compound represented by the following general formula: <IMAGE> wherein R is an alkylene group of one to four carbon atoms, and R' and R'' are fatty acid residues of nine to eighteen carbon atoms. The molded parts prepared from this composition show excellent tensile elongation and impact strength.
Description
SPECIFICATION
Precoloured polyamide molding composition
Background of the invention
Field of the invention
This invention relates to a precoloured polyamide molding composition and is particularly concerned with a precoloured polyamide molding composition suitable for getting precoloured parts of excellent impact strength and tensil elongation.
Prior arts
Many kinds of colorants involving dyes and pigments have been conventionally employed in order to impart aesthetic feeling to polyamide resin molding parts and to improve their weathering characteristics.
Among others, such a colorant as carbon black has been used more frequently. When carbon black or a similar pigment is blended to the polyamide resin, some of its properties such as weathering characteristics are improved. Its impact strength tensil elongation and the like, however, are decreased rapidly compared with those of uncoloured natural resin.
Combination of carbon black and nigrosine was proposed to solve the problem described above ( see, for example, Japanese Laid-open Patent publication No.115,454/1982). Nigrosin exerted its effect to nylon 6, but there was little contribution to nylon 66. Further, it was impossible to combine nigrosine with dyes and pigments other than black ones to precolour molding material.
Summary ofthe invention
Accordingly, it is an object of this invention to provide a precoloured polyamide molding composition suitable for getting aesthetic molded parts.
Another object of this invention is to improve such properties of the molded parts as impact strength, tensil elongation and the like.
These and further objects and advantages of this invention will become more apparent and be fully understood from the hereinafter detailed description.
Detailed description
It has been found that when a polyamide resin is blended with carbo black or other dyes and pigments to precolor and mold the resin, a combination of such colorants and an alkylene bis(fatty amide) contributes to its improved properties such as impact strength, tensil elengation and the like.
According to this invention, it is provided a precoloured polyamide molding composition containing a polyamide resin and a dye or a pigment which comprises further including therein a compound represented by the following general formula:
wherein R is an alkylene group of one to four carbon atoms, and R' and R" are fatty acid residues of nine to eighteen carbon atoms.
Polyamide resins which can be used in this invention include, for example, polycaprolactam (nylon 6), polylaurolactam (nylon 12), poly (11 -aminoundecanoic acid) (nylon 11), polyhexamethylene adipamide (nylon 66), polyhexamethylene azelamide (nylon 69), polyhexamethylene sebacamide (nylon 610), polyhexamethylene dodecanamide (nylon 612), poly [bis (4-aminocyclohexyl)methane dodecanamide ] and the like. Among others nylon 6 and nylon 66 are particularly useful polyamide resins of this invention.
Dyes and pigments used in this invention to precolorthe polyamide resins described above include azo-, anthraquinone-, quinophthalone-, quinacridone-, perylene-, perynone-, isoindolinone-, dioxazine-, phthalocyanine dyes and pigments, iron oxide-, titanium oxide-, ultramarine-, cadmium pigments, cobalt blue, carbon black and the like. These colorants are blended in the range from 1 to 60% by weight of the polyamide resin, when the precolored molding composition is employed as a master batch. And when the precolored molded parts of polyamide resin are prepared, such master bach is diluted by natural resins, or dyes and pigments are added directly to the resins until the final concentration of colorants falls in the range from 0.005 to 5.0% by weight. When carbon black is used as the colorant, it is preferable to have a particle diameter of 8 to 120 my.
When the polyamide resin is blended with dyes and pigments described above, such colorants are combined with a compound of general formula:
wherein R is an alkylene group of one to four carbon atoms, and R' and R" are fatty acid residues of nine to eighteen carbon atoms. The compound represented by the general formula (1 ) includes, for example, methylene-bis(stearamide), ethylene-bis(stearamide), methylene-bis (lauramide), ethylene-bis(lauramide), methylene-bis(myristamide), ethylene-bis(myristamide), methylene-bis(palmitamide), ethylene-bis (palmitamide), methylene-bis(oleicamide), ethylene-bis(oleicamide), methylene-bis(linolamide), ethylenebis(linolamide), and the like. Among others, ethylene-bis(stearamide) or methylene-bis(stearamide) is particularly preferable.
The compound represented by the general formula (1) is preferably added to polyamide in the range of 0.2% by weight of the resin when the composition obtained is used as a master batch, final concentration thereof in the precolored moled parts being 0.001 to 3.0% by weight.
The precoloured polyamide molding composition of this invention can be prepared by conventional procedures. It is prepared, for example, by adding dyes or pigments and the compound (1) into melt polyamide resin and kneading the mixture thus obtained by means of a kneader such as extruders or
Bambury mixer. Commercially, it is preferable to produce the precolored molded parts by melt-extruding the composition through an extruder and pelleting the extrudate by a pelletizer to form master pellets, which are then dilluted by a natural resin.
Since the compound (1) is employed along with a dye or a pigment in the precolored polyamide molding composition of this invention, existing problems such as a decrease in impact strength, tensil elongation and the like due to the addition of the colorant have been solved.
The precolored polyamide molding composition of this invention will be more fully described in the following. They serve to give specific illustrations of the practice of this invention, but are not intended in any way to limit the scope of this invention. The percentage of each colorant and the compound (1) both in the
master batch and the moulded parts is based on the weight.
Examples and comparative examples
Master pellets of precolored polyamide molding compositions were prepared by adding a variety of dyes
and pigments listed in Table 1 below along with the compound of the general formula (1 ) into a polyamide
resin (nylon 6 and nylon 66) and melt-extruding the mixture. These master pellets were dilluted with those of
natural resin and injection-molded. Tensil elongation and impact strength of molded parts thus prepared
were determined. The results obtained are shown in Table 1.
TABLE 1
Master batch Molded parts
Nos of Final concenbation Properties
Examples and Polyamide Colorand partcle Compound (1)/ Colorant Compound(1) Tensil elon- Impact strength
Comparative dlameter(m ); Amountused(%) (%) (%) gation(%) (kglcm2)
Examples Amountused(%) nylon 66 carbon black ethylene-bis
Ex.1 25m ; 20% (stearamide)/5.0% 2.0 0.5 49 840 nylon 66 carbon black methylene-bis
Ex.2 25m ; 20% (stearamide)/4.0% 2.0 0.4 38 832 nylon 66 carbon black ethylene-bis
Ex.3 25m ; 10% (stearamide)/3.0% 0.3 0.09 115 806 nylon 6 carbon black ethylene-bis
Ex.4 16m ; 10% (stearamide)/3.0% 0.03 0.009 80 798 nylon 6 carbon black ethylene-bis
Ex.5 16m ; 10% (stearamide)/3.0% 0.3 0.09 104 770 nylon 6 iron oxide ethylene-bis
Ex.6 yellow 4.0% (stearamide)/1.0% 0.2 0.05 70 796 nylon 6 iron oxide red ethylene-bis
Ex.7 10.0% (stearamide)/2.0% 0.5 0.10 120 780 nylon 6 cyanine green ethylene-bis
Ex.8 2.0% (stearamide)/0.6% 0.1 0.03 82 821 nylon 6 cyanine blue ethylene-bis
Ex.9 6.0% (stearamide)/2.0% 0.3 0.10 108 792 nylon 6 ultramarine ethylene-bis
Ex.10 20.0% (stearamide)/2.0% 1.0 0.10 95 760 TABLE 1(continued)
Master batch Molded parts
Final concenbation Properties
Nos 1
Examples and Polyamide Colorand partcle Compound (1)/ Colorant Compound(1) Tensil elon- Impact strength
Comparative dlameter(m ); Amountused(%) (%) (%) gation(%) (kglcm2)
Examples Amountused(%) nylon 66
Comp. Ex.1 (natural) - - - - 200% < 766 nylon 66 carbon black
Comp. Ex.2 28m ; 20% - 2.0 - 9 808 nylon 66 carbon black
Comp.Ex.3 22m ; 20% - 2.0 - 10 835 nylon 66 carbon black
Comp. Ex.4 25m ; 20% - 2.0 - 8 747 nylon 66 carbon black (aniline black) (aniline)
Comp. Ex.5 25m ; 20% 4.0% 2.0 black 0.4) 10 775 nylon 66 carbon black
Comp. Ex.6 25m ; 10% - 0.3 - 70 758 nylon 6
Comp. Ex.7 (natural) - - - - 90 800 nylon 6 carbon black
Comp. Ex.8 16m ; 10% - 0.03 - 49 795 nylon 6 carbon black
Comp. Ex.9 16m ; 10% - 0.3 - 27 802 nylon 6 carbon black (aniline black) (aniline
Comp. Ex.10 16m ; 10% 3.0% 0.3 black 0.09) 85 785 TABLE 1 (continued)
Master batch Molded parts
Nos of Final concenbation Properties
Examples and
Comerstive Polyamide Colorand partcle Compound (1)/ Colorant Compound(1) Tensil elon- Impact strength
Examples diameter(m ); Amountused(%) (%) (%) gation(%) (kglcm2)
Amountused(%)
Comp. Ex.11 nylon 6 iron oxide yellow 4.0% - 0.2 - 50 798
Comp. Ex.12 nylon 6 rion oxide red 10.0% - 0.5 - 44 794
Comp. Ex.13 nylon 6 cyanine green 2.0% - 0.1 - 41 824
Comp. Ex.14 nylon 6 cyanine blue 6.0% - 0.3 - 27 796 comp. Ex.15 nylon 6 marine blue 20.0% - 1.0 - 40 765
Claims (6)
1. Precolored polyamide molding composition containing a polyamide resin and a dye or a pigment which comprises further including therein a compound represented by the following general formula:
wherein R is an alkylene group of one to four carbon atoms, and R' and R" are fatty acid residues of nine to eighteen carbon atoms
2. A composition claimed in claim 1 wherein the pigment is carbon black having a particle diameter of 8 to 120 m .
3. A composition claimed in claim 1 wherein the compound of general formula (1) is ethylenebis(stearamide).
4. A composition claimed in claim 1 wherein the compound of general formula (1) is methylenebis(stearamide).
5. A composition claimed in cliam 1 wherein the polyamide resin is nylon 66.
6. A composition claimed in claim 1 wherein the polyamide resin is nylon 6.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17510284A JPS6155146A (en) | 1984-08-24 | 1984-08-24 | Composition for pigmented polyamide molding |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8519950D0 GB8519950D0 (en) | 1985-09-18 |
GB2165850A true GB2165850A (en) | 1986-04-23 |
GB2165850B GB2165850B (en) | 1988-05-18 |
Family
ID=15990288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08519950A Expired GB2165850B (en) | 1984-08-24 | 1985-08-08 | Precolored polyamide molding composition |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS6155146A (en) |
DE (1) | DE3529788A1 (en) |
GB (1) | GB2165850B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0308852A2 (en) * | 1987-09-21 | 1989-03-29 | Canon Kabushiki Kaisha | Solid solution |
US9947433B2 (en) | 2011-03-25 | 2018-04-17 | Toray Industries, Inc. | Thermoplastic resin composition and molded product using the same |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4231928A1 (en) * | 1992-09-24 | 1994-03-31 | Basf Ag | Flowable polyamide molding compounds |
JP3599472B2 (en) * | 1996-03-21 | 2004-12-08 | オリヱント化学工業株式会社 | Black polyamide resin composition |
DE19641659C2 (en) * | 1996-10-09 | 1999-03-11 | Inventa Ag | Polyamide masterbatch with improved sliding and anti-blocking properties and its use |
JP2005162821A (en) * | 2003-12-01 | 2005-06-23 | Asahi Kasei Chemicals Corp | Polyamide resin composition |
JP4488407B2 (en) * | 2004-04-16 | 2010-06-23 | 旭化成ケミカルズ株式会社 | Polyamide resin composition for vehicle electrical wiring protection member |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1327341A (en) * | 1971-01-18 | 1973-08-22 | Imp Chemical Ind Ld | Moulding compositions |
US4500665A (en) * | 1983-06-27 | 1985-02-19 | Argus Chemical Corporation | Codispersed particulate lubricant stabilizer compositions for synthetic resins |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS512356B2 (en) * | 1972-04-25 | 1976-01-24 | ||
JPS4990346A (en) * | 1972-12-29 | 1974-08-29 | ||
JPS53137253A (en) * | 1977-04-21 | 1978-11-30 | Mitsubishi Chem Ind Ltd | Polyamide composition |
JPS5415955A (en) * | 1977-07-06 | 1979-02-06 | Mitsubishi Chem Ind Ltd | Polyamide resin composition |
JPS57119951A (en) * | 1981-01-16 | 1982-07-26 | Ube Ind Ltd | Polyamide composition |
-
1984
- 1984-08-24 JP JP17510284A patent/JPS6155146A/en active Pending
-
1985
- 1985-08-08 GB GB08519950A patent/GB2165850B/en not_active Expired
- 1985-08-20 DE DE19853529788 patent/DE3529788A1/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1327341A (en) * | 1971-01-18 | 1973-08-22 | Imp Chemical Ind Ld | Moulding compositions |
US4500665A (en) * | 1983-06-27 | 1985-02-19 | Argus Chemical Corporation | Codispersed particulate lubricant stabilizer compositions for synthetic resins |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0308852A2 (en) * | 1987-09-21 | 1989-03-29 | Canon Kabushiki Kaisha | Solid solution |
EP0308852A3 (en) * | 1987-09-21 | 1990-06-27 | Canon Kabushiki Kaisha | Solid solution solid solution |
US4981614A (en) * | 1987-09-21 | 1991-01-01 | Canon Kabushiki Kaisha | Solid solution |
US9947433B2 (en) | 2011-03-25 | 2018-04-17 | Toray Industries, Inc. | Thermoplastic resin composition and molded product using the same |
Also Published As
Publication number | Publication date |
---|---|
GB8519950D0 (en) | 1985-09-18 |
DE3529788C2 (en) | 1990-04-05 |
JPS6155146A (en) | 1986-03-19 |
DE3529788A1 (en) | 1986-02-27 |
GB2165850B (en) | 1988-05-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6713545B2 (en) | Universal masterbatch | |
US3375219A (en) | Pigmenting polycarbonamide by means of an ethylene copolymer carrier resin | |
US5604279A (en) | Colorant preparation for producing masterbatches | |
JPS6323961A (en) | Composition composed of dispersion of fine particulate solid in thermoplastic polymer organic solvent | |
GB2165850A (en) | Precolored polyamide molding composition | |
JPH03200841A (en) | Material for coloring synthetic resin molding in pattern, its preparation, and synthetic resin molding colored therewith | |
US3723153A (en) | Process for the production of a powdery coloring agent and pellets ofpoly-alkylene resin covered therewith | |
JPH02150444A (en) | Fiber-reinforced polypropylene resin composition | |
JP3375263B2 (en) | Masterbatch for coloring high flow ethylene / propylene-copolymer | |
ES2261957T3 (en) | METHOD FOR REUSING A CRUSHED SYNTHETIC RESIN PRODUCT CONTAINING AN INCORPORATED CURED RESIN. | |
JP3457753B2 (en) | Thermoplastic resin composition | |
AU2005318122A1 (en) | Process for the preparation of cross-linked PBT particles | |
JP3864005B2 (en) | Pattern coloring material for thermoplastic resin and molded body having colored pattern | |
CN110894364A (en) | Super-dispersed carrier-free color master batch and preparation method and application thereof | |
US5075366A (en) | Multi-purpose masterbatches | |
JPH0925447A (en) | Colored master batch containing filler | |
JPS63113057A (en) | Resin composition | |
EP0816426B1 (en) | Process for the manufacture of coloured moulding compositions | |
JP3210452B2 (en) | Masterbatch resin composition | |
JP3599445B2 (en) | Black polyamide resin composition | |
JPH0753772A (en) | Resin composition for coloring | |
JP2558337B2 (en) | Acoustic housing composition | |
JP2817129B2 (en) | Resin coloring composition | |
JPS5811546A (en) | Coloring composition for synthetic resin | |
JPS6272709A (en) | Lubricant for synthetic resin and pigment dispersant |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20040808 |