CN101676119B - Modified salicylic acid type resin color-developing agent - Google Patents
Modified salicylic acid type resin color-developing agent Download PDFInfo
- Publication number
- CN101676119B CN101676119B CN200810141401A CN200810141401A CN101676119B CN 101676119 B CN101676119 B CN 101676119B CN 200810141401 A CN200810141401 A CN 200810141401A CN 200810141401 A CN200810141401 A CN 200810141401A CN 101676119 B CN101676119 B CN 101676119B
- Authority
- CN
- China
- Prior art keywords
- salicylic acid
- developing agent
- acid
- resin color
- color
- 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.)
- Active
Links
Abstract
The invention relates to a modified salicylic acid resin color-developing agent, and the color-developing agent is prepared by the following method: adding salicylic acid or derivatives thereof, metal salts and an acid catalyst into a reaction kettle, increasing the temperature for melting, starting stirring after full dissolution of materials, adding a styrene type unsaturated monomer into the reaction kettle, and carrying out condensation reaction for 1-10h at the temperature of 60-150 DEG C; adding aldehyde substances into the reaction mixture for carrying out polymerization, and carrying out reflux reaction for 0.5-3h at the temperature of 70-130 DEG C; dehydrating a reaction product for 0.5-8h at the vacuum degree of 0.01-0.06Mpa and the temperature of 80-160 DEG C for obtaining a polymer intermediate; and adding an emulsifier in a polymer, carrying out emulsion for 0.5-6h at the temperature of 50-150 DEG C, further adding water and zinc salt, mixing, stirring, melting and shearing, thereby obtaining the modified salicylic acid resin color-developing agent. The resin color-developing agent has the advantages of fast color developing speed, bright color and good anti-aging performance of writing.
Description
Technical field
The invention belongs to the organicvisualization reagent technical field, be specifically related to a kind of modified salicylic acid type resin color-developing agent that is applied to NCR.
Background technology
At present, NCR has been widely used in the office work of all trades and professions, like form, invoice, bill and label etc., can also be used for the demonstration record of Displaying Meter.Therefore the developer that is used for NCR is the emphasis that people study.
Resin dedicated developer of research NCR and preparation method thereof has following two kinds of process routes both at home and abroad at present.A kind of is to bias toward single zinc salicylate class formation, though this resinoid has cryogenic displaying color speed fast, advantage bright in colour exists colour developing concentration light, defectives such as loss of properties on aging.
Another kind of is to bias toward single phenolic resins class formation, and the advantage of this resinoid is that colour developing concentration is dark, and the writing ageing-resistant performance is good, but exists color and luster not bright-coloured, and coating is prone to flavescence in air, and the low temperature color development is slow, easily sticking cylinder in the coating, shortcomings such as product cost height.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency that existing NCR resin color-developing agent exists, the modified salicylic acid type resin color-developing agent that a kind of color speed is fast, bright in colour, the writing ageing-resistant performance is good is provided.
The objective of the invention is to realize through following technical scheme:
Modified salicylic acid resin color-developing agent of the present invention prepares by following method: in agitated reactor, add salicylic acid or derivatives thereof, slaine and acid catalyst; The intensification fusion; Material dissolves the back entirely opens stirring; In agitated reactor, add the phenylethylene unsaturated monomer, under 60～150 ℃, carry out condensation reaction 1～10h; In above-mentioned reactant mixture, add aldehyde material and carry out polymerisation, at 70～130 ℃ of refluxed reaction 0.5～3h; Product is at vacuum 0.01～0.06MPa, and temperature is dewatered down for 80～160 ℃ and obtained intermediate polymer in 0.5～8 hour; Add emulsifying agent in the polymer, at 50 ℃～150 ℃ emulsification 0.5～6h, add entry and zinc salt again, mix and stir, melt and dissolved shearing obtains the modified salicylic acid resin color-developing agent.
The mol ratio of salicylic acid or derivatives thereof, slaine and acid catalyst is 1: 0.01～1.5: 0.02～0.2 in the reactant.
The mol ratio of unsaturated monomer and salicylic acid or derivatives thereof is 0.2～0.8: 1.0 in the reactant, and the mol ratio of aldehyde material and salicylic acid or derivatives thereof is 0.01～0.98: 1.0.
Described salicyclic acid derivatives is wherein a kind of in acetylsalicylic acid, sulfosalicylic acid, SUBLIMATE SALICYLIC ACID, salicylic acid, gaultherolin, salethyl, salicylic acid n-propyl, the isopropyl salicylate.
Described slaine is wherein a kind of in the slaine of Zn, Mg, Ca, Cu or Cd.
Described acid catalyst is wherein a kind of in hydrochloric acid, sulfuric acid, phosphoric acid or the acetic acid.
Described styrene unsaturated monomer is methyl styrene, p-chloromethyl styrene, talan, ethyl styrene, to ethyl styrene, o-isopropyl styrene, wherein a kind of in the t-butyl styrene.
Described aldehyde material is wherein a kind of in formaldehyde, acetaldehyde, propionic aldehyde, butyraldehyde or the benzaldehyde.
In emulsion process, the mol ratio of intermediate polymer, emulsifying agent, water and zinc salt is 1: 0.01～1.2: 0.1～1.03: 0.01～100.
Described emulsifying agent is wherein a kind of among OP-10 or NP-10 or the TX-10.
Resin color-developing agent of the present invention has comprised the zinc salicylate structure; Introduce specific long-chain alkenyl benzene structure simultaneously; Directly carry out condensation reaction with salicylic acid, the saturated monomer of phenylethylene and aldehydes; Overcome the defective of existing developer, advantages such as color speed is fast, lovely luster, the writing ageing-resistant performance is good, production cost is low.
The CF coating reference substance that CF coating that resin color-developing agent of the present invention makes and the resin of Taiwan a company make compares; Measure color developing effect; CB is with the bright Paper Co., Ltd in Jiaozuo City sea product; Chromogenic assay produces SC-BO type color color difference meter with Beijing Kang Guang instrument Co., Ltd and measures result such as following table:
Table 1 pure resin type CF prescription developer RH42%, 19 ℃
Colour developing value RH42% after the light aging of the pure resin color-developing agent CF prescription of table 2,19 ℃, light aging condition: 40W uviol lamp 4h
Colour developing value after the pure resin color-developing agent type of the table 3 CF prescription heat ageing, RH42%, 19 ℃, the light aging condition: 65 ℃, 4h
The pure resin color-developing agent CF prescription of table 4 writing colour developing back light aging, RH42%, 19 ℃, light aging condition: 40W uviol lamp 4h
| Sample | Δ E before the light aging | Δ E after the light aging |
| The present invention | 98.67 | 95.02 |
| Reference substance | 89.44 | 83.21 |
The pure resin CF of table 5 coating whiteness and light aging be to the influence of whiteness, light aging condition: 40W uviol lamp 4h
| Sample | The body paper whiteness | The coating whiteness | Whiteness after the light aging |
| The present invention | 93.4 | 90.5 | 79.4 |
| Reference substance | 93.4 | 90.1 | 78.6 |
Annotate: CF-developer layer CB-microcapsule layer RH-temperature Δ E-colour developing value
Δ E10s, Δ E1min, Δ E5min, Δ E24h are respectively colour developing colour developing value back 10 seconds, 1 minute, 5 minutes, 24 hours the time.
Can find out that by table 1 products C F prescription of the present invention shows value apparently higher than reference substance, and along with colour developing back time lengthening, colour developing value increase amplitude is big than reference substance.
Can find out that by table 2, table 3 CF of product of the present invention prescription colour developing value is higher than reference substance and has colour rendering preferably after light aging, the heat ageing.
Find out that by table 4 products C F prescription colour developing value of the present invention changes much smaller than reference substance.
Table 5 explanation, light aging are lower than the influence of reference substance whiteness to the influence of the CF prescription whiteness of product of the present invention.
The specific embodiment
Through embodiment the present invention is elaborated below, but do not limit the present invention in any way.
Embodiment 1
The modified salicylic acid resin color-developing agent prepares in following method: in the mol ratio of salicylic acid, slaine (zinc chloride) and acid catalyst (hydrochloric acid) is that 1: 0.01: 0.02 ratio takes by weighing salicylic acid 300Kg, zinc chloride 30Kg and hydrochloric acid 10Kg respectively; Above-mentioned material is added agitated reactor, intensification fusion.Material dissolves the back entirely opens stirring, in agitated reactor, adds phenylethylene unsaturated monomer (styrene 160Kg) behind the 5-20h, and methyl styrene and salicylic mol ratio are 0.2: 1.0, under 50-130 ℃, carry out condensation reaction 1h.In above-mentioned reactant mixture, add aldehyde material (formaldehyde 20Kg) and carry out polymerisation, formaldehyde and salicylic mol ratio are 0.01: 1.0.At 100 ℃ of refluxed reaction 1h; Product is at vacuum 0.01-0.06MPa, and 80 ℃ of 3-5h that dewater down of temperature obtain intermediate polymer; Add emulsifier op-10 in the polymer, at 150 ℃ of emulsification 0.5h, add entry and zinc salt again, mix and stir, melt and dissolved shearing obtains the modified salicylic acid resin color-developing agent.In emulsion process, the mol ratio of intermediate polymer, emulsifying agent, water and zinc salt is 1: 0.01: 0.1: 0.01.
Embodiment 2
The modified salicylic acid resin color-developing agent prepares in following method: in the mol ratio of gaultherolin, slaine (magnesium chloride) and acid catalyst (phosphoric acid) is that 1: 0.01: 0.1 ratio takes by weighing gaultherolin 300Kg, magnesium chloride 50Kg and sulfuric acid 20Kg respectively; Above-mentioned material is added agitated reactor, intensification fusion.Material dissolves the back entirely opens stirring, in agitated reactor, adds phenylethylene unsaturated monomer (styrene 150Kg), and the mol ratio of methyl styrene and gaultherolin is 0.3: 1.0, under 140 ℃, carries out condensation reaction 2h.In above-mentioned reactant mixture, add aldehyde material (formaldehyde 30Kg) and carry out polymerisation, the mol ratio of formaldehyde and gaultherolin is 0.1: 1.0.At 110 ℃ of refluxed reaction 1.2h; Product is at vacuum 0.02MPa, and temperature is dewatered down for 90 ℃ and obtained intermediate polymer in 7 hours; Add emulsifier op-10 in the polymer, at 140 ℃ of emulsification 1h, add entry and zinc salt again, mix and stir, melt and dissolved shearing obtains the modified salicylic acid resin color-developing agent.In emulsion process, the mol ratio of intermediate polymer, emulsifying agent, water and zinc salt is 1: 0.01: 0.5: 50.
Embodiment 3
The modified salicylic acid resin color-developing agent prepares in following method: in the mol ratio of salethyl, slaine (calcium chloride) and acid catalyst (sulfuric acid) is that 1: 0.01: 0.2 ratio takes by weighing salethyl 300Kg, calcium chloride 60Kg and phosphoric acid 20Kg respectively; Above-mentioned material is added agitated reactor, intensification fusion.Material dissolves the back entirely opens stirring, in agitated reactor, adds phenylethylene unsaturated monomer (styrene 170Kg), and the mol ratio of adjacent ethyl styrene and salethyl is 0.4: 1.0, under 130 ℃, carries out condensation reaction 3h.In above-mentioned reactant mixture, add aldehyde material (formaldehyde 25Kg) and carry out polymerisation, the mol ratio of formaldehyde and salethyl is 0.2: 1.0.At 120 ℃ of refluxed reaction 1.5h; Product is at vacuum 0.03MPa, and temperature is dewatered down for 100 ℃ and obtained intermediate polymer in 6 hours; Add emulsifying agent NP-10 in the polymer, at 120 ℃ of emulsification 3h, add entry and zinc salt again, mix and stir, melt and dissolved shearing obtains the modified salicylic acid resin color-developing agent.In emulsion process, the mol ratio of intermediate polymer, emulsifying agent, water and zinc salt is 1: 0.01: 1.03: 100.
Embodiment 4
The modified salicylic acid resin color-developing agent prepares in following method: in the mol ratio of salicylic acid n-propyl, slaine (copper chloride) and acid catalyst (acetic acid) is that 1: 1: 0.05 ratio takes by weighing salicylic acid n-propyl 360Kg, copper chloride 270Kg and acetic acid 6.0Kg respectively; Above-mentioned material is added agitated reactor, intensification fusion.Material dissolves the back entirely to be opened and stirs, and in agitated reactor, adds phenylethylene unsaturated monomer (to ethyl styrene 104Kg), is 0.5: 1.0 to the mol ratio of ethyl styrene and salicylic acid n-propyl, under 120 ℃, carries out condensation reaction 4h.In above-mentioned reactant mixture, add aldehyde material (butyraldehyde 43.23Kg) and carry out polymerisation, the mol ratio of butyraldehyde and salicylic acid n-propyl is 0.3: 1.0.At 130 ℃ of refluxed reaction 2h; Product is at vacuum 0.04MPa, and temperature is dewatered down for 110 ℃ and obtained intermediate polymer in 5 hours; Add emulsifying agent NP-10 in the polymer, at 120 ℃ of emulsification 3h, add entry and zinc salt again, mix and stir, melt and dissolved shearing obtains the modified salicylic acid resin color-developing agent.In emulsion process, the mol ratio of intermediate polymer, emulsifying agent, water and zinc salt is 1: 1.2: 0.2: 1.
Embodiment 5
The modified salicylic acid resin color-developing agent prepares in following method: in the mol ratio of isopropyl salicylate, slaine (caddy) and acid catalyst (acetic acid) is that 1: 1: 0.12 ratio takes by weighing isopropyl salicylate 360Kg, caddy 456Kg and acetic acid 14.4Kg respectively; Above-mentioned material is added agitated reactor, intensification fusion.Material dissolves the back entirely to be opened and stirs, and in agitated reactor, adds phenylethylene unsaturated monomer (o-isopropyl styrene 141.6Kg), is 0.6: 1.0 to the mol ratio of ethyl styrene and isopropyl salicylate, under 150 ℃, carries out condensation reaction 5h.In above-mentioned reactant mixture, add aldehyde material (benzaldehyde 84.8Kg) and carry out polymerisation, the mol ratio of benzaldehyde and isopropyl salicylate is 0.4: 1.0.At 70 ℃ of refluxed reaction 2.5h; Product is at vacuum 0.05MPa, and temperature is dewatered down for 120 ℃ and obtained intermediate polymer in 4 hours; Add emulsifying agent NP-10 in the polymer, at 110 ℃ of emulsification 4h, add entry and zinc salt again, mix and stir, melt and dissolved shearing obtains the modified salicylic acid resin color-developing agent.In emulsion process, the mol ratio of intermediate polymer, emulsifying agent, water and zinc salt is 1: 1.2: 0.6: 40.
Embodiment 6
The modified salicylic acid resin color-developing agent prepares in following method: in the mol ratio of acetylsalicylic acid, slaine (zinc carbonate) and acid catalyst (acetic acid) is that 1: 1: 0.18 ratio takes by weighing acetylsalicylic acid 359Kg, zinc carbonate 125Kg and acetic acid 10.8Kg respectively; Above-mentioned material is added agitated reactor, intensification fusion.Material dissolves the back entirely opens stirring, in agitated reactor, adds phenylethylene unsaturated monomer (to t-butyl styrene 96Kg), is 0.8: 1.0 to ethyl styrene and acetysalicylic mol ratio, under 100 ℃, carries out condensation reaction 6h.In above-mentioned reactant mixture, add aldehyde material (benzaldehyde 63.6Kg) and carry out polymerisation, benzaldehyde and acetysalicylic mol ratio are 0.6: 1.0.At 80 ℃ of refluxed reaction 2.8h; Product is at vacuum 0.06MPa, and temperature is dewatered down for 130 ℃ and obtained intermediate polymer in 3 hours; Add emulsifying agent NP-10 in the polymer, at 100 ℃ of emulsification 5h, add entry and zinc salt again, mix and stir, melt and dissolved shearing obtains the modified salicylic acid resin color-developing agent.In emulsion process, the mol ratio of intermediate polymer, emulsifying agent, water and zinc salt is 1: 1.2: 1: 90.
Embodiment 7
The modified salicylic acid resin color-developing agent prepares in following method: in the mol ratio of salicylic acid n-propyl, slaine (copper chloride) and acid catalyst (acetic acid) is that 1: 1.5: 0.08 ratio takes by weighing salicylic acid n-propyl 360Kg, copper chloride 405Kg and acetic acid 9.6Kg respectively; Above-mentioned material is added agitated reactor, intensification fusion.Material dissolves the back entirely to be opened and stirs, and in agitated reactor, adds phenylethylene unsaturated monomer (to ethyl styrene 145.6Kg), is 0.7: 1.0 to the mol ratio of ethyl styrene and salicylic acid n-propyl, under 90 ℃, carries out condensation reaction 7h.In above-mentioned reactant mixture, add aldehyde material (butyraldehyde 100.87Kg) and carry out polymerisation, the mol ratio of butyraldehyde and salicylic acid n-propyl is 0.7: 1.0.At 90 ℃ of refluxed reaction 0.5h; Product is at vacuum 0.04MPa, and temperature is dewatered down for 140 ℃ and obtained intermediate polymer in 2 hours; Add emulsifying agent NP-10 in the polymer, at 90 ℃ of emulsification 4.5h, add entry and zinc salt again, mix and stir, melt and dissolved shearing obtains the modified salicylic acid resin color-developing agent.In emulsion process, the mol ratio of intermediate polymer, emulsifying agent, water and zinc salt is 1: 0.5: 0.3: 10.
Embodiment 8
The modified salicylic acid resin color-developing agent prepares in following method: in the mol ratio of salethyl, slaine (calcium chloride) and acid catalyst (sulfuric acid) is that 1: 1.5: 0.16 ratio takes by weighing salethyl 332Kg, calcium chloride 333Kg and phosphoric acid 31.36Kg respectively; Above-mentioned material is added agitated reactor, intensification fusion.Material dissolves the back entirely opens stirring, in agitated reactor, adds phenylethylene unsaturated monomer (adjacent ethyl styrene 83.2Kg), and the mol ratio of adjacent ethyl styrene and salethyl is 0.4: 1.0, under 80 ℃, carries out condensation reaction 8h.In above-mentioned reactant mixture, add aldehyde material (propionic aldehyde 92.88Kg) and carry out polymerisation, the mol ratio of propionic aldehyde and salethyl is 0.8: 1.0.At 85 ℃ of refluxed reaction 2.3h; Product is at vacuum 0.03MPa, and temperature is dewatered down for 140 ℃ and obtained intermediate polymer in 1 hour; Add emulsifying agent NP-10 in the polymer, at 60 ℃ of emulsification 5.5h, add entry and zinc salt again, mix and stir, melt and dissolved shearing obtains the modified salicylic acid resin color-developing agent.In emulsion process, the mol ratio of intermediate polymer, emulsifying agent, water and zinc salt is 1: 0.5: 0.7: 60.
Embodiment 9
The modified salicylic acid resin color-developing agent prepares in following method: in the mol ratio of salicylic acid, slaine (zinc chloride) and acid catalyst (hydrochloric acid) is that 1: 1.5: 0.19 ratio takes by weighing salicylic acid 276.1Kg, zinc chloride 408Kg and hydrochloric acid 13.87Kg respectively; Above-mentioned material is added agitated reactor, intensification fusion.Material dissolves the back entirely opens stirring, in agitated reactor, adds phenylethylene unsaturated monomer (methyl styrene 47.2Kg), and methyl styrene and salicylic mol ratio are 0.2: 1.0, under 60 ℃, carry out condensation reaction 10h.In above-mentioned reactant mixture, add aldehyde material (formaldehyde 231Kg) and carry out polymerisation, formaldehyde and salicylic mol ratio are 0.98: 1.0.At 95 ℃ of refluxed reaction 0.8h; Product is at vacuum 0.06MPa, and temperature is dewatered down for 160 ℃ and obtained intermediate polymer in 6 hours; Add emulsifier op-10 in the polymer, at 50 ℃ of emulsification 5.5h, add entry and zinc salt again, mix and stir, melt and dissolved shearing obtains the modified salicylic acid resin color-developing agent.In emulsion process, the mol ratio of intermediate polymer, emulsifying agent, water and zinc salt is 1: 0.5: 0.9: 95.
Claims (6)
1. modified salicylic acid resin color-developing agent; It is characterized in that this developer prepares by following method: in agitated reactor, add salicylic acid or derivatives thereof, slaine and acid catalyst; The intensification fusion; Material dissolves the back entirely opens stirring, in agitated reactor, adds the phenylethylene unsaturated monomer, under 60～150 ℃, carries out condensation reaction 1～10h; In above-mentioned reactant mixture, add aldehyde material and carry out polymerisation, at 70～130 ℃ of refluxed reaction 0.5～2.8h; Product is at vacuum 0.01～0.06MPa, and temperature is dewatered down for 80～160 ℃ and obtained intermediate polymer in 1～7 hour; Add emulsifying agent in the intermediate polymer, at 50 ℃～150 ℃ emulsification 0.5～5.5h, add entry and zinc salt again, mix and stir, melt and dissolved shearing obtains the modified salicylic acid resin color-developing agent;
The mol ratio of salicylic acid or derivatives thereof, slaine and acid catalyst is 1: 0.01～1.5: 0.02～0.2 in the reactant;
The mol ratio of unsaturated monomer and salicylic acid or derivatives thereof is 0.2～0.8: 1.0 in the reactant, and the mol ratio of aldehyde material and salicylic acid or derivatives thereof is 0.01～0.98: 1.0.
2. modified salicylic acid resin color-developing agent according to claim 1 is characterized in that: described salicyclic acid derivatives is wherein a kind of in acetylsalicylic acid, sulfosalicylic acid, SUBLIMATE SALICYLIC ACID, salicylic acid, gaultherolin, salethyl, salicylic acid n-propyl, the isopropyl salicylate.
3. modified salicylic acid resin color-developing agent according to claim 2 is characterized in that: described slaine is wherein a kind of in the slaine of Zn, Mg, Ca, Cu or Cd.
4. modified salicylic acid resin color-developing agent according to claim 3 is characterized in that: described acid catalyst is wherein a kind of in hydrochloric acid, sulfuric acid, phosphoric acid or the acetic acid.
5. modified salicylic acid resin color-developing agent according to claim 4 is characterized in that: described phenylethylene unsaturated monomer is methyl styrene, p-chloromethyl styrene, talan, ethyl styrene, to ethyl styrene, o-isopropyl styrene, wherein a kind of in the t-butyl styrene.
6. modified salicylic acid resin color-developing agent according to claim 5 is characterized in that: described aldehyde material is wherein a kind of in formaldehyde, acetaldehyde, propionic aldehyde, butyraldehyde or the benzaldehyde.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810141401A CN101676119B (en) | 2008-09-18 | 2008-09-18 | Modified salicylic acid type resin color-developing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810141401A CN101676119B (en) | 2008-09-18 | 2008-09-18 | Modified salicylic acid type resin color-developing agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101676119A CN101676119A (en) | 2010-03-24 |
| CN101676119B true CN101676119B (en) | 2012-10-10 |
Family
ID=42028896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810141401A Active CN101676119B (en) | 2008-09-18 | 2008-09-18 | Modified salicylic acid type resin color-developing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101676119B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2979888B1 (en) * | 2014-07-29 | 2017-02-22 | Mitsubishi HiTec Paper Europe GmbH | Heat-sensitive recording material with salicylic acid derivative as (dye) developer that can react with a dye precursor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051368A (en) * | 1986-11-05 | 1991-05-15 | 三井东压化学株式会社 | Salicylic acid copolymers and its metal-salt and preparation method thereof contain the developer of this metal salts of copolymers and the colour developing paper of this developer of employing |
| US5017546A (en) * | 1988-04-20 | 1991-05-21 | Brinkman Karl M | Alkyl salicylate developer resin for carbonless copy paper and imaging use |
| CN1247130A (en) * | 1999-07-28 | 2000-03-15 | 华东理工大学 | Developer for non-carbon copying paper |
-
2008
- 2008-09-18 CN CN200810141401A patent/CN101676119B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051368A (en) * | 1986-11-05 | 1991-05-15 | 三井东压化学株式会社 | Salicylic acid copolymers and its metal-salt and preparation method thereof contain the developer of this metal salts of copolymers and the colour developing paper of this developer of employing |
| US5017546A (en) * | 1988-04-20 | 1991-05-21 | Brinkman Karl M | Alkyl salicylate developer resin for carbonless copy paper and imaging use |
| CN1247130A (en) * | 1999-07-28 | 2000-03-15 | 华东理工大学 | Developer for non-carbon copying paper |
Non-Patent Citations (1)
| Title |
|---|
| JP平4-129789A 1992.04.30 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101676119A (en) | 2010-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105199059B (en) | A kind of oil field drilling fluids Chrome-free thinner and preparation method thereof | |
| CN103113036B (en) | Modified aliphatic superplasticizer and preparation method thereof | |
| CN101830546B (en) | Poly-aluminum chloride-magnesium printing and dyeing wastewater coagulant and preparation method thereof | |
| Fan et al. | A chitosan-based fluorescent hydrogel for selective detection of Fe 2+ ions in gel-to-sol mode and turn-off fluorescence mode | |
| CN101435003A (en) | White leather tanning agent and production method thereof | |
| CN101676119B (en) | Modified salicylic acid type resin color-developing agent | |
| CN109529835A (en) | A kind of furfural is converted into 2- methylfuran method for preparing catalyst | |
| CN106966882A (en) | A kind of preparation method of tetrachloroquinone | |
| CN110526838A (en) | A kind of production method of sodium diethylhexyl sulfosuccinate | |
| CN104529906A (en) | Method for improving water solubility of hydroxybenzimidazolyl compound | |
| CN105669926B (en) | A kind of preparation method of high-content naphthalene water reducer | |
| CN104861135A (en) | Method for preparing amino aryl sulfonic acid series water reducing agent by utilizing oxidation wastewater generated by producing DSD acid | |
| CN102516525B (en) | A kind of preparation method and applications of phosphate-free corrosion inhibition antisludging agent in high altitude localities | |
| CN102442984A (en) | Synthesis method of water-soluble fluorescent monomer | |
| CN102731540A (en) | Metal cadmium complex and preparation method thereof | |
| CN107384362A (en) | A kind of acidification corrosion inhibitor and preparation method and application | |
| CN100574932C (en) | Utilize industrial waste---the sulfonic acid mother liquor production casting technology of sulfonic acid curing agent | |
| CN102504160A (en) | Method for preparing concrete superplasticizer by utilizing synthesized aspirin waste liquor | |
| CN101130596B (en) | Colophony diacid ester aldehyde acetal polyalcohol, synthesis method and uses of the same | |
| CN104311875A (en) | Rare-earth heat stabilizer and preparation method thereof | |
| CN113702569A (en) | Method for detecting content of calcium hydroxide and calcium carbonate in carbide slag | |
| KR0179075B1 (en) | Process for manufacture of sulfonated melamine-formaldehyde resin | |
| CN111635524B (en) | Environment-friendly fluorescent tracing scale inhibitor and preparation method thereof | |
| CN109696518A (en) | A kind of detection method of sub-molten salt vanadium extraction production tailings ingredient | |
| CN110002981A (en) | A method of preparing pseudo ionone |
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 |