CN101968614B - Conductive foam rubber charging roller and preparation method thereof - Google Patents
Conductive foam rubber charging roller and preparation method thereof Download PDFInfo
- Publication number
- CN101968614B CN101968614B CN201010260316A CN201010260316A CN101968614B CN 101968614 B CN101968614 B CN 101968614B CN 201010260316 A CN201010260316 A CN 201010260316A CN 201010260316 A CN201010260316 A CN 201010260316A CN 101968614 B CN101968614 B CN 101968614B
- Authority
- CN
- China
- Prior art keywords
- parts
- conductive
- rubber
- foaming
- charging roller
- 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 - Fee Related
Links
Landscapes
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Abstract
The invention discloses a conductive foam rubber charging roller and a preparation method thereof. The conductive foam rubber charging roller comprises a metal shaft center, a foaming pipe layer and a conductive rubber hose layer which is sleeved outside the foaming pipe layer, wherein the foaming pipe layer is prepared by nitrile rubber buna (NRB) with conductive black, and the weight part ratio of the conductive black to the NRB is 1.2-2:100; and the conductive rubber hose layer is prepared by ternary B glue rubber with conductive black, and the weight part ratio of the conductive black to the ternary B glue rubber is 8-15:100. In the invention, the influence of climatic temperature on the charging roller is solved; due to the existence of an elastic sponge layer, abnormal sound in the printing process is avoided and a photosensitive drum is not polluted; at the same time, printing life can be improved by one to two periods, thus further being beneficial for environmental protection.
Description
Technical field
The invention belongs to the static phase equipment technical field of diving, especially relate to and a kind ofly can be widely used in printer, the bipeltate electricity rubber charging roller and the manufacturing approach thereof of duplicating machine and facsimile recorder.
Background technology
Prior art generally all is nylon jacket or PU sleeve pipe at present, and its defective is can change its material with variation of temperature, causes to print bottom ash, pit to occur; Abnormal sound in print procedure, occurs, be commonly called as and be " noise ", and the anti-pollution photosensitive drums time is shorter.
Summary of the invention
One of the object of the invention is to provide a kind of can be widely used in printer, and the bipeltate charging roller of duplicating machine and facsimile recorder solves the defective that prior art exists.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
A kind of conductive foaming rubber charging roller comprises a metal axle center, adheres to conductive rubber layer outside the adhesive phase, is placed in the foaming layer gum sleeve outside the conductive rubber layer; Described conductive rubber layer is the ternary second glue rubber that is mixed with conductive black, and said conductive black is 8～15: 100 with the weight portion mark ratio of ternary second glue rubber; Described foaming layer gum sleeve is the nitrile rubber that is mixed with conductive black, and the ratio of weight and number of this foaming layer gum sleeve conductive black and nitrile rubber is 1.2～2: 100.
Preferably: described conductive rubber layer comprises component and parts by weight:
100 parts of ternary second glue rubber; 8～15 parts of conductive carbon blacks; 5～7.5 parts of gas-development agents; 1.2～2 parts of lubricating auxiliary agent; 0.8～1.2 part in aging resister; 3～5 parts of kickers; 100～160 parts of filling agents; 6～10 parts of promoter; 1.5～2 parts of crosslinking chemicals.
More excellent is: described gas-development agent comprises 1.5～2.5 parts of 3.5～5 parts of ADC (azobisformamide) and BK (urea lipid blowing promotor); Said lubricating auxiliary agent is a Tissuemat E; Said aging resister is MB (a 2-mercapto benzimidazole); Said kicker is a zinc paste, and crosslinking chemical is a Cosan.
More excellent is: described filling agent comprises 20～40 parts of calcium carbonate activateds, 40～60 parts of 40～60 parts of paraffinum liquidums and high wear-resistant carbon blacks.
Calcium activated is the filling agent that reduces cost, and does not influence the quality of product simultaneously; Paraffinum liquidum can make things convenient for and rubber softening, is convenient to extrude, and reduces temperature; High wear-resistant carbon black has the effect of filling with reinforcement.Selecting above consumption can take into account cost and quality simultaneously, is that product is more stable.
More excellent is: described promoter comprises 1.5～2.5 parts of N-cyclohexyl-2-[4-morpholinodithio time sulphur amine, 1.5～2.5 parts on dibutyl two sulfo-dithiocarbamic acid zinc, 1.5～2.5 parts of benzothiazolyl mercaptans, 1.5～2.5 parts on diethyl-dithio dithiocarbamic acid zinc.
Through evidence, these four kinds of promoter can make the rubber full cure, and noresidue has good rebound resilience, and adopts such consumption, and can just make reacts completely carries out, and no blooming is ageing-resistant, can prolong its serviceable life.
More excellent is: described foaming layer gum sleeve comprises component and parts by weight:
100 parts of nitrile rubbers; 1.2～2 parts of conductive carbon blacks; 78.5～135 parts of filling agents; 3.5～5 parts of kickers; 4.2～6.6 parts of promoter; 1.5～2.5 parts of crosslinking chemicals.
More excellent is: described filling agent comprises 15～30 parts of dibutyl phthalates, 20～40 parts of 40～60 parts of calcium carbonate activateds and high wear-resistant carbon blacks; Said kicker is a zinc paste, and crosslinking chemical is a Cosan.
Its emollescence of dibutyl phthalate is convenient to the mixing of rubber and is extruded; A kind of filling agent that reduces cost, do not influence quality again of calcium carbonate activated; High wear-resistant carbon black then has the effect of filling and reinforcement.
More excellent is: described promoter comprises 0.9～1.3 part of N-cyclohexyl-2-[4-morpholinodithio time sulphur amine, 0.9～1.3 part of TMTD, 1.2～2 parts of benzothiazolyl mercaptans, 1.2～2 parts on dibutyl two sulfo-dithiocarbamic acid zinc.
Through evidence, these four kinds of promoter can make the rubber full cure, and noresidue has good rebound resilience; And adopt such consumption, can make the rubber quality of producing more stable, no blooming; Ageing-resistant, its serviceable life be can prolong, and grinding and spraying protective layer are convenient to.
Two of the object of the invention is to provide a kind of preparation method of conductive foaming rubber charging roller, comprises step:
A) batching holds conductive rubber pipe layer respectively by required component and the accurate weighing of content thereof, and seals for use;
B) refining glue; With 80 ± 2 ℃ of rubber (without the virgin rubber of the plasticating) temperature of plasticating; 5～8 minutes time, again various raw materials (outside promoter, the crosslinking chemical all the other feed composition with plasticate after rubber) add Banbury mixer, refining is to 130 ℃～140 ℃; Time is to get final product in 20～30 minutes, and elastomeric compound takes out cooling;
C) add sulphur, pour cooled elastomeric compound into Banbury mixer and add promoter, 70～75 ℃ of crosslinking chemical to temperature, 5～8 minutes time again and get final product, it is taken out cooling wait to extrude;
D) extrusion molding and sulfuration typing, 55 ± 2 ℃ of extruder temperatures, speed transfers to 7.5～8 meters of per minutes, and type is chewed in calibration, and to make it to extrude the sebific duct thickness even; 250 ± 5 ℃ of sulfuration hot blast groove temperature, 7.5～8 meters of speed per minutes make and extrude the sebific duct foaming and moulding makes foaming conductive rubber pipe;
E) cut,, cut foaming and manage for use by needed charging roller length;
F) metal axle center pre-service cutting foaming pipe simultaneously, and the metal axle center is cleaned, to be dried after, with bonding agent even coated with adhesive layers in its surface again, again it was toasted 30 ± 5 minutes with 80 ± 2 ℃ of temperature, for use;
G) cover foaming pipe will be cut out the foaming pipe air gun and be blown into the metal axle center, and the metal axle center that will overlap the foaming pipe of getting well afterwards is with 80 ± 2 ℃ of temperature, and the time is to add baking in 30 ± 5 minutes;
H) grinding and spray bonding agent are with said F) charging roller of the good foaming pipe of cover is ground to required size, the charging roller spraying binder that grinding is finished; Spray back and forth 2～3 times, add baking after spraying finishes, add baking time and temperature and divided 30 ± 5 minutes and 6 ± 2 ℃;
I) cover rubber tube and grinding; With said H) the foaming roller that adds after the baking is blown in the conductive rubber pipe of corresponding size with air gun; Carry out 80 ± 2 ℃ of temperature again, the time is to add baking in 30 ± 5 minutes, will add baking conductive foaming rubber rollers later and carry out grinding according to corresponding size;
J) with I) in the conductive foaming rubber rollers that finishes of grinding spray the conductive protection layer;
K) detect, charging roller is placed corresponding toner cartridge the inside, last machine testing.
The present invention compared with prior art has following advantage and beneficial effect:
Prior art generally all is nylon jacket or PU sleeve pipe at present, and its defective is can change its material with variation of temperature, causes to print bottom ash, pit to occur; Abnormal sound in print procedure, occurs, be commonly called as and be " noise ", and the anti-pollution photosensitive drums time is shorter.The invention solves the influence of climate temperature to charging roller, because the sponge elastic layer is arranged, also solved the problem that occurs abnormal sound in the print procedure, and can not pollute photosensitive drums, simultaneously, print life can improve one or two cycle, helps environmental protection more.
Embodiment
Below in conjunction with specific embodiment the present invention is explained further details.
In an embodiment of the present invention; The conductive rubber pipe layer batching of using is like table 1.0,2.0, shown in 3.0; The foaming layer gum sleeve batching of using is like table 1.1,2.1, shown in 3.1; The adhesive formulations of using makes up the proportioning of each table shown in table 3.0 and table 4.0, can obtain being invented the preferred embodiment prescription.
Table 1.0 foaming conductive rubber layer list of ingredients
Table 1.1 foaming layer gum sleeve list of ingredients
Table 2.0 foaming conductive rubber layer list of ingredients
Table 2.1 foaming layer gum sleeve list of ingredients
Table 3.0 foaming conductive rubber layer list of ingredients
Table 3.1 foaming layer gum sleeve list of ingredients
Table 3 bonding agent 1 list of ingredients
| Title | Ratio 1 (%) | Ratio 2 (%) |
| Water-based PU bonding agent | ?70 | ?60 |
| Pure water | ?20 | ?30 |
| Carbon black | ?10 | ?10 |
Table 4 bonding agent 2 lists of ingredients
| Title | Ratio (%) |
| Kai Muluoke 205 | 80 |
| The spraying carbon black | 5 |
| Ethyl acetate | 15 |
Embodiment makes the technology of conductive foaming rubber charging roller
1. prepare burden: various accurately weighings are held respectively, and seal for use.
2. refining glue: earlier to plasticate 80 ℃ of temperature of rubber, 5 minutes time, add Banbury mixeies to various raw materials again, refining is to 130 ℃～140 ℃, and the time is get final product in 20～30 minutes, and elastomeric compound takes out and cools off.
3. add sulphur: various promoter, crosslinking chemical weighing are good, pour cooled elastomeric compound into Banbury mixer and add promoter, 70～75 ℃ of crosslinking chemical to temperature, 5～8 minutes time again and get final product, it is taken out cooling wait to extrude.
4. extrusion molding: 55 ℃ of extruder temperatures, speed transfers to per minute 7.5～8m, and type is chewed in calibration, and to make it thickness even.
5. sulfuration typing: 250 ℃ of sulfuration hot blast groove temperature, speed per minute 7.5～8m makes and extrudes sebific duct foaming and moulding.
6. cut: by needed charging roller length, it is for use to cut sponge tube.
7. steel axle brush adhesive 1: cutting out the foaming pipe simultaneously, can brush steel axle bonding agent, brush bonding agent and added baking and can put the foaming pipe in 80 ℃, 20 minutes.
8. cover foaming pipe: will cut out the foaming pipe air gun and be blown into the steel axle, the steel axle that will overlap the foaming pipe of getting well afterwards is with 80 ℃ of temperature, and the time is to add baking in 30 minutes.
9. grinding: having overlapped foaming pipe and being called the foaming roller and counting and transfer to the skiving worker and be ground to required size.
10. spray bonding agent 2: will grind good foaming roller and use the spray gun spraying binder; Rubber rollers after grinding has finished can spray, and spray gun centrally aligned rubber roll sprays 2 times back and forth, afterwards again with 60 ℃, the baking of the environment of 30min.
11. cover rubber tube and grinding are with said 10) the foaming roller that adds after the baking is blown into air gun in the conductive rubber pipe of corresponding size, and carry out 80 ℃, 30min again and add baking.To add baking conductive foaming rubber rollers later again and carry out grinding according to corresponding size.
12. with 11) in the conductive foaming rubber rollers that finishes of grinding spray the conductive protection layer.
13. detect: the rubber roll that will spray protective layer is parked, and can detect after 24 hours and dispatch from the factory.Detection is charging roller to be put into corresponding toner cartridge the inside go up machine print black, ash, white, literal version, judges through its printing effect whether it is certified products.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of invention.
Claims (9)
1. a conductive foaming rubber charging roller is characterized in that: comprise that a metal axle center, foaming pipe layer and cover invest the conductive rubber pipe layer outside the foaming pipe layer; Described foaming pipe layer is the nitrile rubber that is mixed with conductive black, and the ratio of weight and number of said conductive black and nitrile rubber is 1.2～2: 100; Described conductive rubber pipe layer is the ternary second glue rubber that is mixed with conductive black, and the conductive black of this conductive rubber pipe layer and ternary second glue rubber ratio of weight and number are 8～15: 100.
2. conductive foaming rubber charging roller as claimed in claim 1 is characterized in that: described conductive rubber pipe layer comprises component and parts by weight:
100 parts of ternary second glue rubber; 8～15 parts of conductive carbon blacks; 5～7.5 parts of gas-development agents; 1.2～2 parts of lubricating auxiliary agent; 0.8～1.2 part in aging resister; 3～5 parts of kickers; 100～160 parts of filling agents; 6～10 parts of promoter; 1.5～2 parts of crosslinking chemicals.
3. conductive foaming rubber charging roller as claimed in claim 2 is characterized in that: described gas-development agent comprises 1.5～2.5 parts of 3.5～5 parts of azobisformamides (ADC) and urea lipid blowing promotors (BK); Said lubricating auxiliary agent is a Tissuemat E; Said aging resister is a 2-mercapto benzimidazole (MB); Said kicker is a zinc paste, and crosslinking chemical is a Cosan.
4. conductive foaming rubber charging roller as claimed in claim 2 is characterized in that: described filling agent comprises 20～40 parts of calcium carbonate activateds, 40～60 parts of 40～60 parts of paraffinum liquidums and high wear-resistant carbon blacks.
5. conductive foaming rubber charging roller as claimed in claim 2; It is characterized in that: described promoter comprises 1.5～2.5 parts of N-cyclohexyl-2-[4-morpholinodithio time sulphur amine; 1.5～2.5 parts on dibutyl two sulfo-dithiocarbamic acid zinc; 1.5～2.5 parts of benzothiazolyl mercaptans, 1.5～2.5 parts on diethyl-dithio dithiocarbamic acid zinc.
6. conductive foaming rubber charging roller as claimed in claim 1 is characterized in that: described foaming pipe layer comprises component and parts by weight:
100 parts of nitrile rubbers; 1.2～2 parts of conductive carbon blacks; 78.5～135 parts of filling agents; 3.5～5 parts of kickers; 4.2～6.6 parts of promoter; 1.5～2.5 parts of crosslinking chemicals.
7. conductive foaming rubber charging roller as claimed in claim 6 is characterized in that: described filling agent comprises 15～30 parts of dibutyl phthalates, 20～40 parts of 40～60 parts of calcium carbonate activateds and high wear-resistant carbon blacks; Said kicker is a zinc paste, and crosslinking chemical is a Cosan.
8. conductive foaming rubber charging roller as claimed in claim 7; It is characterized in that: described promoter comprises 0.9～1.3 part of N-cyclohexyl-2-[4-morpholinodithio time sulphur amine; 0.9～1.3 part of TMTD; 1.2～2 parts of benzothiazolyl mercaptans, 1.2～2 parts on dibutyl two sulfo-dithiocarbamic acid zinc.
9. technology for preparing each said conductive foaming rubber charging roller of claim 1～8 comprises step:
A) batching holds conductive rubber pipe layer respectively by required component and the accurate weighing of content thereof, and seals for use;
B) refining glue, with plasticate 80 ± 2 ℃ of temperature of rubber, 5～8 minutes time, add Banbury mixeies to various raw materials again, refining is to 130 ℃～140 ℃, and the time is get final product in 20～30 minutes, and elastomeric compound takes out and cools off;
C) add sulphur, pour cooled elastomeric compound into Banbury mixer and add promoter, 70～75 ℃ of crosslinking chemical to temperature, 5～8 minutes time again and get final product, it is taken out cooling wait to extrude;
D) extrusion molding and sulfuration typing, 55 ± 2 ℃ of extruder temperatures, speed transfers to 7.5～8 meters of per minutes, and type is chewed in calibration, and to make it to extrude the sebific duct thickness even; 250 ± 5 ℃ of sulfuration hot blast groove temperature, 7.5～8 meters of speed per minutes make and extrude the sebific duct foaming and moulding makes foaming conductive rubber pipe;
E) cut,, cut foaming and manage for use by needed charging roller length;
F) metal axle center pre-service cutting foaming pipe simultaneously, and the metal axle center is cleaned, to be dried after, with bonding agent even coated with adhesive layers in its surface again, again it was toasted 30 ± 5 minutes with 80 ± 2 ℃ of temperature, for use;
G) cover foaming pipe will be cut out the foaming pipe air gun and be blown into the metal axle center, and the metal axle center that will overlap the foaming pipe of getting well afterwards is with 80 ± 2 ℃ of temperature, and the time is to add baking in 30 ± 5 minutes;
H) grinding and spray bonding agent are with said F) charging roller of the good foaming pipe of cover is ground to required size, the charging roller spraying binder that grinding is finished; Spray back and forth 2～3 times, add baking after spraying finishes, add baking time and temperature and divided 30 ± 5 minutes and 6 ± 2 ℃;
I) cover rubber tube and grinding; With said H) the foaming roller that adds after the baking is blown in the conductive rubber pipe of corresponding size with air gun; Carry out 80 ± 2 ℃ of temperature again, the time is to add baking in 30 ± 5 minutes, will add baking conductive foaming rubber rollers later and carry out grinding according to corresponding size;
J) with I) in the conductive foaming rubber rollers that finishes of grinding spray the conductive protection layer;
K) detect, charging roller is placed corresponding toner cartridge the inside, last machine testing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010260316A CN101968614B (en) | 2010-08-23 | 2010-08-23 | Conductive foam rubber charging roller and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010260316A CN101968614B (en) | 2010-08-23 | 2010-08-23 | Conductive foam rubber charging roller and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101968614A CN101968614A (en) | 2011-02-09 |
| CN101968614B true CN101968614B (en) | 2012-10-03 |
Family
ID=43547785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010260316A Expired - Fee Related CN101968614B (en) | 2010-08-23 | 2010-08-23 | Conductive foam rubber charging roller and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101968614B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207711A (en) * | 2011-06-08 | 2011-10-05 | 北京莱盛高新技术有限公司 | Method for manufacturing sponge roller |
| CN102520598B (en) * | 2011-12-12 | 2014-05-14 | 珠海天威飞马打印耗材有限公司 | Charging roller and manufacturing method thereof |
| CN102601903A (en) * | 2012-03-30 | 2012-07-25 | 珠海天威飞马打印耗材有限公司 | Special mould of charging roller and manufacturing method |
| EP2985658B1 (en) * | 2013-03-27 | 2018-07-04 | Zeon Corporation | Crosslinkable rubber composition for conductive rolls, rubber crosslinked material for conductive rolls, and conductive roll |
| CN103923400A (en) * | 2014-03-11 | 2014-07-16 | 北京绿色快车国际橡塑制品有限公司 | Conductive foaming tube and preparation method |
| CN103869654B (en) * | 2014-03-11 | 2017-06-13 | 北京绿色快车国际橡塑制品有限公司 | charging roller and preparation method thereof |
| CN105885133A (en) * | 2016-05-18 | 2016-08-24 | 东莞市沃顿橡塑新材料有限公司 | High-elasticity charging roller and processing technique thereof |
| CN105949755B (en) * | 2016-05-18 | 2018-12-25 | 东莞市沃顿橡塑新材料有限公司 | A kind of high abrasion charging roller and its processing technology |
| US11576837B2 (en) | 2019-10-03 | 2023-02-14 | Jfxd Trx Acq Llc | Multi-zonal roller and method of use thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1389764A (en) * | 2002-05-20 | 2003-01-08 | 广州市刘氏橡塑制品有限公司 | Charge roll for laser image forming eqipment and its production process |
| CN1501194A (en) * | 2002-11-15 | 2004-06-02 | 住友橡胶工业株式会社 | Conductive roller and image-forming apparatus having conductive roller |
| CN1694009A (en) * | 2005-05-17 | 2005-11-09 | 刘义波 | Elastic layer of charging roller and its manufacturing method and charging roller |
| CN200950209Y (en) * | 2006-09-18 | 2007-09-19 | 周浩然 | Casing tube charge roller |
| JP2009210981A (en) * | 2008-03-06 | 2009-09-17 | Tokai Rubber Ind Ltd | Charging roll for electrophotographic apparatus |
-
2010
- 2010-08-23 CN CN201010260316A patent/CN101968614B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1389764A (en) * | 2002-05-20 | 2003-01-08 | 广州市刘氏橡塑制品有限公司 | Charge roll for laser image forming eqipment and its production process |
| CN1501194A (en) * | 2002-11-15 | 2004-06-02 | 住友橡胶工业株式会社 | Conductive roller and image-forming apparatus having conductive roller |
| CN1694009A (en) * | 2005-05-17 | 2005-11-09 | 刘义波 | Elastic layer of charging roller and its manufacturing method and charging roller |
| CN200950209Y (en) * | 2006-09-18 | 2007-09-19 | 周浩然 | Casing tube charge roller |
| JP2009210981A (en) * | 2008-03-06 | 2009-09-17 | Tokai Rubber Ind Ltd | Charging roll for electrophotographic apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101968614A (en) | 2011-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101968614B (en) | Conductive foam rubber charging roller and preparation method thereof | |
| CN101976023A (en) | Dense conductive rubber charging roller and production method thereof | |
| CN102424721B (en) | Environment friendly plastic slurry for sports field and preparation method thereof | |
| CN106249564B (en) | Electroconductive member, handle box and electronic photographing device | |
| US7976447B2 (en) | Conductive rubber roller and transfer roller | |
| CN101178561B (en) | Foamed rubber roller | |
| CN102436161B (en) | Conductive elastomer roller and manufacturing method thereof as well as image forming device | |
| JP2004067726A (en) | Conductive urethane composition and conductive roller, charging roller, developing roller, and transfer roller using the composition | |
| CN100559296C (en) | Charging roller and preparation method thereof | |
| CN100535786C (en) | Developer roll and method of producing the same | |
| CN103869654A (en) | Charging roller and preparation method thereof | |
| CN102807831B (en) | Heat-vulcanization top coating adhesive for bonding metal and natural rubber | |
| CN106832712A (en) | A kind of lactoprene rotary shaft lip seal and preparation method thereof | |
| CN106750133A (en) | Low hardness polyurethane rubber roll material and preparation method thereof | |
| CN103012979A (en) | Rubber composition with low breathability | |
| CN101280103B (en) | Paper-feeding roller | |
| CN103756040A (en) | Application of alkadiene polymer in rubber masterbatch, masterbatch and preparation method | |
| CN100483265C (en) | Sleeved charging roller and production method thereof | |
| CN102132221A (en) | Electrifying roller | |
| CN104914699B (en) | Cleaning balde, handle box and image processing system | |
| CN104292813B (en) | Urethane composition and preparation method, the preparation method of synchro measure wheel glue surface | |
| CN102529342A (en) | Engraved intaglio press plate scrapping roller and preparation method | |
| JP4070011B2 (en) | Method of manufacturing foamed conductive rubber roller for image forming apparatus and transfer roller | |
| JP2008158031A (en) | Developing roller, manufacturing method for developing roller, developing device and image forming apparatus | |
| WO2019164071A1 (en) | Cleaning blades, and electrophotographic imaging apparatuses and electrophotographic cartridges employing the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wu Shengli Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Wu Shengli Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20190823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |