CN102731842B - Special modified starch for wrapping paper and production method thereof - Google Patents
Special modified starch for wrapping paper and production method thereof Download PDFInfo
- Publication number
- CN102731842B CN102731842B CN201210200820.6A CN201210200820A CN102731842B CN 102731842 B CN102731842 B CN 102731842B CN 201210200820 A CN201210200820 A CN 201210200820A CN 102731842 B CN102731842 B CN 102731842B
- Authority
- CN
- China
- Prior art keywords
- starch
- formula
- urea
- modified starch
- steam flow
- 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
Landscapes
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Paper (AREA)
Abstract
The invention provides a special modified starch for wrapping paper and a production method thereof, belonging to the filed of deep processing of maize. The special modified starch is prepared from the following components: in a volume mass ratio, 2250 m<3> to 2750 m<3> of maize starch milk 21Be' ( equivalent to 900 to 1100 Kg of a dry basis), 18 to 22 Kg of sodium tripolyphosphate, 4.5 to 5.5 Kg of sodium trimetaphosphate, 10.8 to 13.2 Kg of urea, 4.5 to 5.5 Kg of sodium hydroxide and 36 to 44 Kg of sodium carbonate. The special modified starch for wrapping paper provided in the invention has the following advantages: the special modified starch is easy to gelatinize and has a low gelatinization temperature and a short gelatinization time; gelatinized liquid has good fluidity, transparency, film forming ability and film strength; and the special modified starch has excellent bonding performance with a variety of fibers and good compatibility with other auxiliary agents.
Description
Technical field
The invention belongs to corn deep processing field, refer in particular to a kind of modified starch and production method thereof.
Background technology
The W-Gum of take at present boils tackiness agent as raw material oxidative degradation, carry out paper for surface sizing, require paper making raw material to use in a large number wood pulp and partially recycled litter decoration, reclaimed waste paper case is owing to recycling for a long time, and fiber is shorter and shorter, clinging power worse and worse, greatly reduce paper ring crush intensity, therefore need to strengthen paper ring crush intensity by adding a large amount of wood pulps, and a large amount of uses of wood pulp, ecotope is caused to very big destruction, be unfavorable for the environmental protection policy that country advocates.
Summary of the invention
The invention provides a kind of package paper starch special and production method thereof, to solve paper industry, take W-Gum as raw material boils amylan for a long time always, be unfavorable for the problem of environmental protection.
The technical scheme that the present invention takes is to be obtained than formula and method by following volume mass:
Formula
Corn starch milk 21Be ': 2250m
3~ 2750 m
3(amounting to butt 900 Kg ~ 1100Kg);
Tripoly phosphate sodium STPP: 18 Kg ~ 22Kg;
Trisodium trimetaphosphate: 4.5Kg ~ 5.5Kg;
Urea: 10.8 Kg ~ 13.2 Kg;
Sodium hydroxide: 4.5Kg ~ 5.5Kg;
Sodium carbonate: 36 Kg ~ 44 Kg;
Preparation method:
One, by filling a prescription, attracting 21Be ' starch milk through pipeline from production of corn starch line, squeeze into the tank of sizing mixing, add sodium hydroxide furnishing weakly alkaline starch milk;
Two, by formula, add tripoly phosphate sodium STPP, Trisodium trimetaphosphate, urea, do not stop to stir 45 min ~ 55min, stirring velocity 120 r/min ~ 140r/min simultaneously;
Three, centrifuge dehydration: tripoly phosphate sodium STPP, Trisodium trimetaphosphate, urea and starch enter centrifuge dewatering after fully acting on, rotating speed 1000 r/min ~ 1200r/min, measures water content, moisture 28-30%;
Four, steam flow is dry: half wet starch after centrifuge dehydration, enters steam flow dehumidification system through auger and carry out secondary and dewater, starch water content 13-14% after secondary dewaters; The dried starch of steam flow stores up into storage tank, in order to pyroreaction;
Five, reactor is warming up to after 145 ~ 155 ℃, and the starch of getting ready in storage tank is sent into reactor, continues to heat up, and is warming up to 155 ~ 160 ℃, pressure: 6.5 vapor pressures, start clock reaction, reaction 55 min ~ 65min, sampling, detection, substitution value reaches DS0.15～0.25, and reaction finishes;
Six, the material that reaction finishes, squeezes into cooling tank, carries out normal temperature cooling;
Seven, be mixed: the high substitution value modified starch through pyroreaction, add the sodium carbonate in formula,
Eight, screening: sieve with vibratory screening apparatus;
Nine, packing: metering packing.
It is in order to make starch milk reach alkaline environment that the present invention adds sodium hydroxide, makes Trisodium trimetaphosphate and the starch can be better and hydroxy combining, forms cross linked chain, adding tripoly phosphate sodium STPP is after being cross-linked, carry out esterification, hydroxyl is substituted again, and increases thickening property and overlay film.The sodium carbonate that is mixed is conducive to, in package paper production technique, reach weakly alkaline environment.Can save application producer operational process of craft, be more conducive to realize industrialization simultaneously.
The stability, uniformity of the existing wet process technique of the present invention, production capacity increase, and can reach again the high substitution value effect of dry technology for production simultaneously.
The present invention adopts the advanced mode that is mixed, and has added and be beneficial to the chemical reagent that adhesive process is endured in papermaking before client uses, and has both shortened papermaking enterprise and has endured the glue time, reduces again its operation sequence.Adding of the technique being mixed, improve output, reduce production costs, more easily realize the industrialization of package paper starch special.
Using after this Project Product, can greatly improve paper ring crush intensity, reduce the usage quantity of wood pulp, increase the utilization ratio that reclaims carton, is the recycling economy of a sustainable use, benefits the nation and the people.
Method of the present invention be take W-Gum as raw material boils the process of amylan for a long time by finishing paper industry always, for paper-making sizing technique has increased new raw material, improves application product quality simultaneously, reduces carbon emission, response national environmental protection policy.
Positively effect of the present invention: products characteristics of the present invention is:
1, the easy gelatinization of this product, gelatinization point is low, gelatinization time is short;
2, stick with paste that liquid good fluidity, transparency are good, good film-forming property, film toughness be high;
3, good to various fiber adhesive performances, good with other auxiliary agent consistency;
Application effect of products of the present invention is:
1, endure the glue time than conventional corn starch shortening 20-30 minute, steam saving, electric equal energy source, reduce production costs;
2, this Project Product is than the few 10-15% of W-Gum usage quantity, and the glue boiling obviously increases than W-Gum viscosity, improves degree of sizing;
3, become paper physical index ring crush intensity obviously to increase, all far above similar grams top grade product AAA level level;
4, finished product water repelling property obviously strengthens, and water absorbing properties obviously reduces;
5, can replacing whole tapioca (flour), W-Gum uses.
Product physical and chemical index of the present invention is as following table:
The patented product scope of application of the present invention: the wrapping material such as high-strength corrugating medium, white board, yellow plate paper, kraft paper, adhesive for paper box, top sizing, interlayer spraying, the various tackiness agents of paper.
Embodiment
Embodiment 1:
By following volume mass, than formula and method, obtained:
Formula
Corn starch milk 21Be ': 2250 m
3(amounting to butt 900 Kg);
Tripoly phosphate sodium STPP: 18 Kg;
Trisodium trimetaphosphate: 4.5Kg;
Urea: 10.8 Kg;
Sodium hydroxide: 4.5Kg;
Sodium carbonate: 36 Kg;
Preparation method:
One, by filling a prescription, attracting 21Be ' starch milk through pipeline from production of corn starch line, squeeze into the tank of sizing mixing, add sodium hydroxide furnishing weakly alkaline starch milk;
Two, by formula, add tripoly phosphate sodium STPP, Trisodium trimetaphosphate, urea, do not stop to stir 45 min, stirring velocity 120 r/min simultaneously;
Three, centrifuge dehydration: tripoly phosphate sodium STPP, Trisodium trimetaphosphate, urea and starch enter centrifuge dewatering after fully acting on, rotating speed 1000 r/min, measure water content, moisture 28%;
Four, steam flow is dry: half wet starch after centrifuge dehydration, enters steam flow dehumidification system through auger and carry out secondary and dewater, starch water content 13% after secondary dewaters; The dried starch of steam flow stores up into storage tank, in order to pyroreaction;
Five, reactor is warming up to after 145 ℃, and the starch of getting ready in storage tank is sent into reactor, continues to heat up, and is warming up to 155 ℃, pressure: 6.5 vapor pressures, start clock reaction, and reaction 55 min, sample, detect, and substitution value reaches DS0.15, and reaction finishes;
Six, the material that reaction finishes, squeezes into cooling tank, carries out normal temperature cooling;
Seven, be mixed: the high substitution value modified starch through pyroreaction, add the sodium carbonate in formula,
Eight, screening: sieve with vibratory screening apparatus;
Nine, packing: metering packing.
Embodiment 2:
By following volume mass, than formula and method, obtained:
Formula
Corn starch milk 21Be ': 2500 m
3(amounting to butt 1000Kg);
Tripoly phosphate sodium STPP: 20Kg;
Trisodium trimetaphosphate: 5Kg;
Urea: 12 Kg;
Sodium hydroxide: 5Kg;
Sodium carbonate: 40 Kg;
Preparation method:
One, by filling a prescription, attracting 21Be ' starch milk through pipeline from production of corn starch line, squeeze into the tank of sizing mixing, add sodium hydroxide furnishing weakly alkaline starch milk;
Two, by formula, add tripoly phosphate sodium STPP, Trisodium trimetaphosphate, urea, do not stop to stir 50min, stirring velocity 130r/min simultaneously;
Three, centrifuge dehydration: tripoly phosphate sodium STPP, Trisodium trimetaphosphate, urea and starch enter centrifuge dewatering after fully acting on, rotating speed 1200r/min, measures water content, moisture 29%;
Four, steam flow is dry: half wet starch after centrifuge dehydration, enters steam flow dehumidification system through auger and carry out secondary and dewater, starch water content 13.5% after secondary dewaters; The dried starch of steam flow stores up into storage tank, in order to pyroreaction;
Five, reactor is warming up to after 150 ℃, and the starch of getting ready in storage tank is sent into reactor, continues to heat up, and is warming up to 160 ℃, pressure: 6.5 vapor pressures, start clock reaction, and reaction 60min, samples, detects, and substitution value reaches DS0.2, and reaction finishes;
Six, the material that reaction finishes, squeezes into cooling tank, carries out normal temperature cooling;
Seven, be mixed: the high substitution value modified starch through pyroreaction, add the sodium carbonate in formula,
Eight, screening: sieve with vibratory screening apparatus;
Nine, packing: metering packing.
Embodiment 3:
By following volume mass, than formula and method, obtained:
Formula
Corn starch milk 21Be ': 2750 m
3(amounting to butt 1100Kg);
Tripoly phosphate sodium STPP: 22Kg;
Trisodium trimetaphosphate: 5.5Kg;
Urea: 13.2 Kg;
Sodium hydroxide: 5.5Kg;
Sodium carbonate: 44 Kg;
Preparation method:
One, by filling a prescription, attracting 21Be ' starch milk through pipeline from production of corn starch line, squeeze into the tank of sizing mixing, add sodium hydroxide furnishing weakly alkaline starch milk;
Two, by formula, add tripoly phosphate sodium STPP, Trisodium trimetaphosphate, urea, do not stop to stir 55min, stirring velocity 140r/min simultaneously;
Three, centrifuge dehydration: tripoly phosphate sodium STPP, Trisodium trimetaphosphate, urea and starch enter centrifuge dewatering after fully acting on, rotating speed 1100r/min, measures water content, moisture 30%;
Four, steam flow is dry: half wet starch after centrifuge dehydration, enters steam flow dehumidification system through auger and carry out secondary and dewater, starch water content 14% after secondary dewaters; The dried starch of steam flow stores up into storage tank, in order to pyroreaction;
Five, reactor is warming up to after 155 ℃, and the starch of getting ready in storage tank is sent into reactor, continues to heat up, and is warming up to 158 ℃, pressure: 6.5 vapor pressures, start clock reaction, and reaction 65min, samples, detects, and substitution value reaches DS0.25, and reaction finishes;
Six, the material that reaction finishes, squeezes into cooling tank, carries out normal temperature cooling;
Seven, be mixed: the high substitution value modified starch through pyroreaction, add the sodium carbonate in formula,
Eight, screening: sieve with vibratory screening apparatus;
Nine, packing: metering packing.
By concrete application test example, further illustrate effect of the present invention below.
Application test example 1
Application product: product of the present invention;
Application mode: production line is produced;
Number of applications: 1200Kg;
Use procedure: this sample application is to the 130g/m producing
2package paper (high-strength corrugating medium) sizing test 3 days, modified starch charging capacity is identical with W-Gum: 2 batches, than W-Gum consumption, few 15%:2 criticizes, and than W-Gum consumption, few 20%:1 criticizes.
Test-results is as follows:
1, gelatinization time: gelatinization completes 88 ℃ of temperature, gelatinization time 1 hour, common starch gelatinization completes 92 ℃ of temperature, gelatinization time 1.5 hours, this starch gelatinization temperature shortens and just can reach production requirement, save energy in 30 minutes than common starch than 10 ℃ of common starch reductions, gelatinization time.
2, stick with paste the good film-forming property of liquid, paste liquid transparency is high.
3, become paper ring crush intensity obviously to strengthen.(130g/m
2high-strength corrugating medium's ring crush index standard-required>=8.0 N.m/g
)
4, starch usage quantity reduces more than 15%, reduces production costs.
Testing data (reducing the contrast of starch usage quantity effect):
Application test example 2
Application product: product of the present invention;
Application mode: production line is produced;
Number of applications: 3000Kg;
260 ms/min of the production speed of a motor vehicle, 140 grams of grammes per square metres, in the situation that processing condition are constant:
1, enduring the glue time uses former W-Gum to shorten 10-15 minute.
2, the compound viscosity boiling obviously increases compared with ative starch viscosity.
3,, on glue after machine, become paper physical index ring crush index to have increase.
4, rubber mass compounding bar husband Surface Size is used, and water absorbing properties reaches 40 grams following (in 2 minutes).
5, repetition measurement in the ring of 21.5 ℃ of temperature, humidity 55% is pressed, physical index ring end finger indicates fluctuation.
Application test example 3
Application product: product of the present invention;
Application mode: production line is produced;
Number of applications: 3000Kg;
Apply product of the present invention, grammes per square metre 110g, 3 tons of modified starch consumptions, do not change original technique, conclusion:
1, modified starch is endured the glue time and is endured glue time shorten compared with conventional corn starch;
2, finished product water repelling property obviously strengthens, and water absorbing properties obviously reduces (120 seconds);
3,, on sizing material after machine, become paper physical index ring crush index to increase;
4, the compound viscosity boiling increases compared with conventional corn starch.
Testing data is as follows:
Claims (2)
1. a package paper starch special, is characterized in that: by following volume mass, than formula and method, obtained:
Formula
Corn starch milk 21 degree Beaume: 2250m
3~ 2750 m
3, amount to butt 900 Kg ~ 1100Kg;
Tripoly phosphate sodium STPP: 18 Kg ~ 22Kg;
Trisodium trimetaphosphate: 4.5Kg ~ 5.5Kg;
Urea: 10.8 Kg ~ 13.2 Kg;
Sodium hydroxide: 4.5Kg ~ 5.5Kg;
Sodium carbonate: 36 Kg ~ 44 Kg;
Preparation method:
One, by filling a prescription, attracting 21 degree Beaume starch milks through pipeline from production of corn starch line, squeeze into the tank of sizing mixing, add sodium hydroxide furnishing weakly alkaline starch milk;
Two, by formula, add tripoly phosphate sodium STPP, Trisodium trimetaphosphate, urea, do not stop to stir 45 min ~ 55min, stirring velocity 120 r/min ~ 140r/min simultaneously;
Three, centrifuge dehydration: tripoly phosphate sodium STPP, Trisodium trimetaphosphate, urea and starch enter centrifuge dewatering after fully acting on, rotating speed 1000 r/min ~ 1200r/min, measures water content, moisture 28-30%;
Four, steam flow is dry: half wet starch after centrifuge dehydration, enters steam flow dehumidification system through auger and carry out secondary and dewater, starch water content 13-14% after secondary dewaters; The dried starch of steam flow stores up into storage tank, in order to pyroreaction;
Five, reactor is warming up to after 145 ~ 155 ℃, and the starch of getting ready in storage tank is sent into reactor, continues to heat up, and is warming up to 155 ~ 160 ℃, pressure: 6.5 vapor pressures, start clock reaction, reaction 55 min ~ 65min, sampling, detection, substitution value reaches DS0.15～0.25, and reaction finishes;
Six, the material that reaction finishes, squeezes into cooling tank, carries out normal temperature cooling;
Seven, be mixed: the high substitution value modified starch through pyroreaction, adds the sodium carbonate in formula;
Eight, screening: sieve with vibratory screening apparatus;
Nine, packing: metering packing.
2. the production method of package paper starch special as claimed in claim 1, is characterized in that comprising that following volume mass is than formula and step:
Formula
Corn starch milk 21 degree Beaume: 2250m
3~ 2750 m
3, amount to butt 900 Kg ~ 1100Kg;
Tripoly phosphate sodium STPP: 18 Kg ~ 22Kg;
Trisodium trimetaphosphate: 4.5Kg ~ 5.5Kg;
Urea: 10.8 Kg ~ 13.2 Kg;
Sodium hydroxide: 4.5Kg ~ 5.5Kg;
Sodium carbonate: 36 Kg ~ 44 Kg;
Preparation process:
One, by filling a prescription, attracting 21 degree Beaume starch milks through pipeline from production of corn starch line, squeeze into the tank of sizing mixing, add sodium hydroxide furnishing weakly alkaline starch milk;
Two, by formula, add tripoly phosphate sodium STPP, Trisodium trimetaphosphate, urea, do not stop to stir 45 min ~ 55min, stirring velocity 120 r/min ~ 140r/min simultaneously;
Three, centrifuge dehydration: tripoly phosphate sodium STPP, Trisodium trimetaphosphate, urea and starch enter centrifuge dewatering after fully acting on, rotating speed 1000 r/min ~ 1200r/min, measures water content, moisture 28-30%;
Four, steam flow is dry: half wet starch after centrifuge dehydration, enters steam flow dehumidification system through auger and carry out secondary and dewater, starch water content 13-14% after secondary dewaters; The dried starch of steam flow stores up into storage tank, in order to pyroreaction;
Five, reactor is warming up to after 145 ~ 155 ℃, and the starch of getting ready in storage tank is sent into reactor, continues to heat up, and is warming up to 155 ~ 160 ℃, pressure: 6.5 vapor pressures, start clock reaction, reaction 55 min ~ 65min, sampling, detection, substitution value reaches DS0.15～0.25, and reaction finishes;
Six, the material that reaction finishes, squeezes into cooling tank, carries out normal temperature cooling;
Seven, be mixed: the high substitution value modified starch through pyroreaction, adds the sodium carbonate in formula;
Eight, screening: sieve with vibratory screening apparatus;
Nine, packing: metering packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210200820.6A CN102731842B (en) | 2012-06-18 | 2012-06-18 | Special modified starch for wrapping paper and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210200820.6A CN102731842B (en) | 2012-06-18 | 2012-06-18 | Special modified starch for wrapping paper and production method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102731842A CN102731842A (en) | 2012-10-17 |
| CN102731842B true CN102731842B (en) | 2014-04-09 |
Family
ID=46988196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210200820.6A Active CN102731842B (en) | 2012-06-18 | 2012-06-18 | Special modified starch for wrapping paper and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102731842B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815917A (en) * | 2017-10-27 | 2018-03-20 | 吉林中粮生化有限公司 | A kind of starch composites being used in paper industry |
| CN108691239B (en) * | 2018-06-15 | 2020-12-22 | 西北民族大学 | Preparation method and application of composite modified corn starch flame-retardant material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0814092A1 (en) * | 1995-03-03 | 1997-12-29 | Japan Corn Starch Co., Ltd. | Esterified and polyester-grafted starch and alloy thereof |
| CN1903885A (en) * | 2005-07-28 | 2007-01-31 | 四平帝达变性淀粉有限公司 | Predextrinization acetylated distarch phosphate and its preparation method |
| CN101033262A (en) * | 2006-03-10 | 2007-09-12 | 四平帝达变性淀粉有限公司 | Method of preparing starch phosphate |
-
2012
- 2012-06-18 CN CN201210200820.6A patent/CN102731842B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0814092A1 (en) * | 1995-03-03 | 1997-12-29 | Japan Corn Starch Co., Ltd. | Esterified and polyester-grafted starch and alloy thereof |
| CN1903885A (en) * | 2005-07-28 | 2007-01-31 | 四平帝达变性淀粉有限公司 | Predextrinization acetylated distarch phosphate and its preparation method |
| CN101033262A (en) * | 2006-03-10 | 2007-09-12 | 四平帝达变性淀粉有限公司 | Method of preparing starch phosphate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102731842A (en) | 2012-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103755816B (en) | A kind of preparation method of sodium carboxymethylcellulose | |
| CN103266536B (en) | Preparation method and use of paper surface sizing agent | |
| CN107881842B (en) | Method for preparing high-strength corrugated base paper by using straws and waste paper pulp | |
| CN106917309B (en) | A kind of preparation method of corn stalk stalks of rice, wheat, etc. cellulose short-term training film | |
| CN110079270A (en) | A kind of fibre modification soybean protein base adhesive of wood-based plate and preparation method thereof | |
| CN102731842B (en) | Special modified starch for wrapping paper and production method thereof | |
| CN110527458A (en) | A kind of application and its processing method of cassava whole-powder | |
| CN110305604A (en) | A kind of bond for corrugated board and preparation method thereof | |
| CN104371343A (en) | High-performance plant fiber packaging material and preparation method thereof | |
| CN101735395B (en) | Preparation method of water absorbing material of industrial hemp stalk core cellulose | |
| CN102587197B (en) | Paper stock and preparation method thereof as well as paper manufactured by applying paper stock | |
| CN108589405A (en) | A kind of intensifier for paper, paper and preparation method thereof | |
| CN104631201A (en) | Process for producing low-gram-weight and high-strength heavy packaging craft paper by waste paper recycling | |
| CN104789153B (en) | High water resistance Lauxite filler and preparation method thereof | |
| CN103526642A (en) | Flame-retardant body paper and production method thereof | |
| WO2021012617A1 (en) | Method for improving strength performance of waste paper pulp | |
| CN106758488A (en) | A kind of preparation method of high-intensity water absorbent bamboo paper | |
| CN105107484B (en) | A kind of preparation method of industrial gelatine base retention and drainage aid agent | |
| CN105419752A (en) | Slurry process for preparing filtrate reducer for water-based drilling fluid by utilizing anaerobic fermentation biogas residues | |
| CN107573868A (en) | The preparation method and dry solution of corrugated board and preparation method thereof and its adhesive | |
| Dhar et al. | 3. Benchmarking nanocellulose production: scale-up strategies and life-cycle assessment | |
| CN102864689A (en) | Wheat protein coating food wrap paper and preparation method thereof | |
| CN101113580A (en) | Reinforced additive for paper making | |
| CN102251433A (en) | Method for preparing paper | |
| CN103321097B (en) | Functional filler retention agent for papermaking and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: JILIN COFCO BIOCHEMICAL CO., LTD. Free format text: FORMER OWNER: JINLIN COFCO BIOCHEMICAL TECHNOLOGY CO., LTD. Effective date: 20131230 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20131230 Address after: 130033 Changchun economic and Technological Development Zone, Sendai, No. 1717 Main Street, Jilin Applicant after: JILIN COFCO BIOCHEMISTRY CO., LTD. Address before: 130033 No. 1717 Sendai street, Changchun economic and Technological Development Zone, Jilin Applicant before: Jilin COFCO Biochemical Technology Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tong Yi Inventor after: Wu Yandong Inventor after: Wang Hongling Inventor after: Wang Jinzhi Inventor after: Zhang Xiurong Inventor before: Wu Yandong Inventor before: Wang Hongling Inventor before: Wang Jinzhi Inventor before: Zhang Xiurong |
|
| COR | Change of bibliographic data |