DE3643604C2 - - Google Patents
Info
- Publication number
- DE3643604C2 DE3643604C2 DE3643604A DE3643604A DE3643604C2 DE 3643604 C2 DE3643604 C2 DE 3643604C2 DE 3643604 A DE3643604 A DE 3643604A DE 3643604 A DE3643604 A DE 3643604A DE 3643604 C2 DE3643604 C2 DE 3643604C2
- Authority
- DE
- Germany
- Prior art keywords
- resins
- color toner
- colorant
- toner
- toner according
- 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 - Lifetime
Links
- 239000003086 colorant Substances 0.000 claims description 55
- 229920005989 resin Polymers 0.000 claims description 46
- 239000011347 resin Substances 0.000 claims description 46
- 239000011230 binding agent Substances 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 229920001577 copolymer Polymers 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 14
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical class OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 claims description 10
- 150000004056 anthraquinones Chemical class 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- -1 polypropylene Polymers 0.000 claims description 8
- 150000003839 salts Chemical class 0.000 claims description 8
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 7
- 229960004889 salicylic acid Drugs 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 239000011651 chromium Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 5
- 229920002050 silicone resin Polymers 0.000 claims description 5
- 229910000859 α-Fe Inorganic materials 0.000 claims description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 229920001225 polyester resin Polymers 0.000 claims description 3
- 239000004645 polyester resin Substances 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229920003145 methacrylic acid copolymer Polymers 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 239000004014 plasticizer Substances 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 229920006122 polyamide resin Polymers 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229940058287 salicylic acid derivative anticestodals Drugs 0.000 claims description 2
- 150000003872 salicylic acid derivatives Chemical class 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 2
- 239000008096 xylene Substances 0.000 claims description 2
- CVEPFOUZABPRMK-UHFFFAOYSA-N 2-methylprop-2-enoic acid;styrene Chemical compound CC(=C)C(O)=O.C=CC1=CC=CC=C1 CVEPFOUZABPRMK-UHFFFAOYSA-N 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- 239000011162 core material Substances 0.000 claims 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims 1
- MXNUCYGENRZCBO-UHFFFAOYSA-M sodium;ethene;2-methylprop-2-enoate Chemical compound [Na+].C=C.CC(=C)C([O-])=O MXNUCYGENRZCBO-UHFFFAOYSA-M 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 21
- 238000004519 manufacturing process Methods 0.000 description 20
- 239000002245 particle Substances 0.000 description 17
- 239000000975 dye Substances 0.000 description 16
- 239000000126 substance Substances 0.000 description 12
- 239000000049 pigment Substances 0.000 description 11
- QPQKUYVSJWQSDY-UHFFFAOYSA-N 4-phenyldiazenylaniline Chemical compound C1=CC(N)=CC=C1N=NC1=CC=CC=C1 QPQKUYVSJWQSDY-UHFFFAOYSA-N 0.000 description 7
- 238000010924 continuous production Methods 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 7
- 239000000038 blue colorant Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 5
- 238000004040 coloring Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- 150000003751 zinc Chemical class 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000001060 yellow colorant Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000001000 anthraquinone dye Substances 0.000 description 2
- 239000001045 blue dye Substances 0.000 description 2
- 239000001055 blue pigment Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- MFGZXPGKKJMZIY-UHFFFAOYSA-N ethyl 5-amino-1-(4-sulfamoylphenyl)pyrazole-4-carboxylate Chemical compound NC1=C(C(=O)OCC)C=NN1C1=CC=C(S(N)(=O)=O)C=C1 MFGZXPGKKJMZIY-UHFFFAOYSA-N 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 229960001860 salicylate Drugs 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 description 2
- 238000010186 staining Methods 0.000 description 2
- XUDJOVURIXHNRW-UHFFFAOYSA-N 1-amino-4-anilinoanthracene-9,10-dione Chemical compound C1=2C(=O)C3=CC=CC=C3C(=O)C=2C(N)=CC=C1NC1=CC=CC=C1 XUDJOVURIXHNRW-UHFFFAOYSA-N 0.000 description 1
- XGRZWVWRMKAQNU-UHFFFAOYSA-K 2-carboxyphenolate;chromium(3+) Chemical compound [Cr+3].OC1=CC=CC=C1C([O-])=O.OC1=CC=CC=C1C([O-])=O.OC1=CC=CC=C1C([O-])=O XGRZWVWRMKAQNU-UHFFFAOYSA-K 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- JQXYBDVZAUEPDL-UHFFFAOYSA-N 2-methylidene-5-phenylpent-4-enoic acid Chemical compound OC(=O)C(=C)CC=CC1=CC=CC=C1 JQXYBDVZAUEPDL-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 125000003282 alkyl amino group Chemical group 0.000 description 1
- 125000005037 alkyl phenyl group Chemical group 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000001844 chromium Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 150000004696 coordination complex Chemical class 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000040 green colorant Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000019239 indanthrene blue RS Nutrition 0.000 description 1
- UHOKSCJSTAHBSO-UHFFFAOYSA-N indanthrone blue Chemical compound C1=CC=C2C(=O)C3=CC=C4NC5=C6C(=O)C7=CC=CC=C7C(=O)C6=CC=C5NC4=C3C(=O)C2=C1 UHOKSCJSTAHBSO-UHFFFAOYSA-N 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229940117841 methacrylic acid copolymer Drugs 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/09—Colouring agents for toner particles
- G03G9/0906—Organic dyes
- G03G9/0908—Anthracene dyes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Developing Agents For Electrophotography (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60287317A JPH0711718B2 (ja) | 1985-12-19 | 1985-12-19 | 電子写真用青色トナ− |
JP61010218A JPH0711721B2 (ja) | 1986-01-22 | 1986-01-22 | 電子写真用緑色トナ− |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3643604A1 DE3643604A1 (de) | 1987-06-25 |
DE3643604C2 true DE3643604C2 (en, 2012) | 1991-05-23 |
Family
ID=26345452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19863643604 Granted DE3643604A1 (de) | 1985-12-19 | 1986-12-19 | Farbtoner fuer die elektrophotographie |
Country Status (3)
Country | Link |
---|---|
US (1) | US4888263A (en, 2012) |
DE (1) | DE3643604A1 (en, 2012) |
GB (1) | GB2184858B (en, 2012) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5240803A (en) * | 1989-08-29 | 1993-08-31 | Mita Industrial Co., Ltd. | Toner for developing statically charged images and process for preparation thereof |
US5368971A (en) * | 1990-06-29 | 1994-11-29 | Hodogaya Chemical Co., Ltd. | Electrophotographic toner containing a zinc benzoate compound |
US5212036A (en) * | 1991-05-28 | 1993-05-18 | Xerox Corporation | Passivated green toner compositions comprising positive charge enhancing additive |
US6103441A (en) * | 1998-11-12 | 2000-08-15 | Ricoh Company, Ltd. | Color toner for electrophotography |
US6447591B1 (en) * | 1999-01-22 | 2002-09-10 | Xerox Corporation | Anthraquinone colorants for inks |
US6437155B2 (en) | 2000-02-25 | 2002-08-20 | Xerox Corporation | Anthraquinone colorants for inks |
KR100491893B1 (ko) * | 2002-02-27 | 2005-05-27 | 이석현 | 광미세가공 및 다기능 센서용 감광성 고분자 및 이를포함하는 감광성 수지 조성물 |
US7378213B2 (en) * | 2002-12-10 | 2008-05-27 | Ricoh Company, Ltd. | Image forming process and image forming apparatus |
JP4165817B2 (ja) * | 2003-04-10 | 2008-10-15 | 株式会社リコー | 画像形成装置及びこれに用いられるプロセスカートリッジ |
JP2004334092A (ja) * | 2003-05-12 | 2004-11-25 | Ricoh Co Ltd | クリーニング装置、プロセスカートリッジ、画像形成装置、及びこれらに用いるトナー |
JP2005017463A (ja) * | 2003-06-24 | 2005-01-20 | Ricoh Co Ltd | 画像形成装置及びこれに用いられるプロセスカートリッジ、トナー |
JP2005300626A (ja) | 2004-04-07 | 2005-10-27 | Ricoh Co Ltd | クリーニング装置、画像形成装置 |
JP2006154412A (ja) * | 2004-11-30 | 2006-06-15 | Ricoh Co Ltd | 画像形成装置 |
EP1686426B1 (en) * | 2005-01-26 | 2012-11-21 | Ricoh Company, Ltd. | Toner and method of manufacturing the toner |
JP4536628B2 (ja) * | 2005-09-16 | 2010-09-01 | 株式会社リコー | 画像形成装置、プロセスカートリッジ、画像形成方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US27912A (en) * | 1860-04-17 | Henry johnson | ||
US3547822A (en) | 1968-02-01 | 1970-12-15 | Eastman Kodak Co | Scum-retardant carrier particles and compositions thereof |
US3888678A (en) * | 1971-07-16 | 1975-06-10 | Eastman Kodak Co | Method for adjusting triboelectric charging characteristics of materials |
US3983045A (en) * | 1971-10-12 | 1976-09-28 | Xerox Corporation | Three component developer composition |
ZA765807B (en) * | 1975-10-07 | 1977-09-28 | Sublistatic Holding Sa | Developers |
AU499347B2 (en) * | 1975-11-06 | 1979-04-12 | Subligraphics S.A. | Spray dried magnetic developer |
JPS53127921A (en) * | 1977-04-15 | 1978-11-08 | Nissan Motor Co Ltd | Secondary air introducing device of internal combustion engine |
-
1986
- 1986-12-08 US US06/939,382 patent/US4888263A/en not_active Expired - Lifetime
- 1986-12-16 GB GB8630002A patent/GB2184858B/en not_active Expired
- 1986-12-19 DE DE19863643604 patent/DE3643604A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
GB8630002D0 (en) | 1987-01-28 |
DE3643604A1 (de) | 1987-06-25 |
US4888263A (en) | 1989-12-19 |
GB2184858B (en) | 1989-10-18 |
GB2184858A (en) | 1987-07-01 |
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