CN103773274A - Novel amyloid cigarette adhesive based on non-gelatinized starch - Google Patents
Novel amyloid cigarette adhesive based on non-gelatinized starch Download PDFInfo
- Publication number
- CN103773274A CN103773274A CN201210400085.3A CN201210400085A CN103773274A CN 103773274 A CN103773274 A CN 103773274A CN 201210400085 A CN201210400085 A CN 201210400085A CN 103773274 A CN103773274 A CN 103773274A
- Authority
- CN
- China
- Prior art keywords
- starch
- gelatinization
- cigarette
- amyloid
- oxidation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention relates to a novel amyloid cigarette adhesive based on non-gelatinized starch. The novel amyloid cigarette adhesive based on the non-gelatinized starch is characterized by comprising the following components by weight: 35%-85% of water, 10%-60% of the non-gelatinized starch, 0.05%-1% of a preservative, 0.05%-1% of a defoaming agent and 0-5% of a functional assistant. The non-gelatinized starch refers to modified starch without being subjected to gelatinization reaction and comprises degradable esterified starch and degradable etherified starch. The cigarette adhesive provided by the invention has good viscosity, fluidity and stability, can be stably stored for more than three months at a room temperature, can be used as any adhesive such as lap adhesive, tipping adhesive, filter rod central line adhesive, packaging adhesive and aluminum foil laminated adhesive in cigarette production, and is applicable to any cigarette machine, particularly a cigarette machine with a single-gun speed higher than 7,000 cigarettes/minute and a highly speed cigarette machine with a speed higher than 10,000 cigarettes/minute.
Description
Technical field
The present invention relates to starchiness sizing agent, particularly a kind of based on the amyloid novel starch matter of non-gelatinization cigarette glue.
Background technology
Sizing agent is one of raw and auxiliary material important in production of cigarettes manufacturing processed, in a lot of production of cigarettes operations, all relates to sizing agent, mainly comprises: overlapping glue, connect mouth glue, filter stick centre-line glue, packing glue and aluminum foil composite glue etc.At present, the domestic main flow cigarette machine list rifle speed of a motor vehicle is about 7000/minute (speed of a motor vehicle of some new cigarette machine reaches 14000-16000 props up/minute) substantially, calculate with this cigarette speed, the speed that rolls out of plume is about 500 ms/min of left and right, for example, concerning overlapping glue, be coated in cigarette tissue the time of plume out from it and be less than 0.1 second, time of drying is only less than 0.1 second, otherwise cigarette machine just there will be " race bar " phenomenon and quits work; Therefore, this just requires cigarette glue to have excellent adhesive property, rheological property etc.
Because polyvinyl acetate emulsion class sizing agent possesses above-mentioned performance characteristics, can adapt to high-speed cigarette machine requirement, thereby cigarette industry is generally used at home and abroad.But be non-natural sizing agent take polyvinyl acetate emulsion as basic sizing agent, at present, people are interested in the sizing agent of natural class, as starchiness sizing agent etc. because the raw material sources of natural class tackiness agent more extensively, more environmental protection.
Abroad since the 80s and 90s in last century developing starch High Speed Cigarette Adhesives, for example United States Patent (USP) 5085228 has proposed the mixture that one comprises cross-linking starch and modified starch (referring in particular to denaturated starch by acid), mixture is carried out obtaining starch cigarette glue after gelatinization, wherein the amylopection content of special requirement ative starch is at least 70%(weight), and this mixture can select to carry out etherificate, esterification and oxidation modification before gelatinization, this starch cigarette glue is applicable to the production of 6000/minute of the speed of a motor vehicle and above cigarette machine.United States Patent (USP) 5155140 has proposed a kind of tackiness agent, mainly contains by the mixture of 100 parts of water, 4-120 part gum arabic, 3-80 part water soluble starch degraded product, carboxymethyl starch, gelling starch and forms.United States Patent (USP) 5329004 has proposed a kind of take at least 90%(weight of amylopection content) ative starch as raw material, obtained a kind of starch cigarette glue by sour sex change (or enzymolysis, oxidation), Phosphation, gelatinization, this starch cigarette glue is applicable to the production of 6000/minute of the speed of a motor vehicle and above cigarette machine.United States Patent (USP) 5490875 has proposed a kind of take at least 70%(weight of amylopection content) ative starch as raw material, prepared respectively white dextrin and hydrolyzed starch (by enzyme and/or acid), then carried out gelatinization, obtained starch adhesive.Chinese patent CN 1095864C has proposed a kind of starch cigarette glue of unmodified starch, 5-60% treated starch, 0-5% rheology modifier, about 0-1% sanitas and 0-1% defoamer composition of the 2-25% of comprising dispersiveness, and this amylan is greater than 7000 cigarette of per minute applicable to production rate and is sometimes greater than the cigarette machine of 10000 cigarette of per minute.Chinese patent CN 100556973C has proposed the starch-based adhesive that a kind of treated starch with one or more (acetylated starch, acetylize two cross-linking starchs, etherification starch, etherificate cross-linking starch) obtains after modification for the second time again; the modification for the second time of treated starch is to carry out in the process of gelatinization plastic; be acylation modification or etherification modifiedly synchronize and carry out with degraded, this amylan is applicable to the cigarette machine that is more than or equal to 7000/minute.But, the a lot of starch cigarette glues that relate in existing patent still exist the problems such as the speed of a motor vehicle low even not mentioned start speed of a motor vehicle while production, viscosity are poor, glue poor stability, and the domestic commercial starchiness sizing agent product that not yet occurs meeting cigarette industry practical application request at present.Therefore the starchiness cigarette sizing agent that, still needs to meet numerous requirements such as the high speed of a motor vehicle of existing cigarette machine and there is good viscosity, mobility, stability.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide one can meet the normal Production requirement of existing cigarette machine (7000/minute of single rifle speed of a motor vehicle and with first-class), and the one with good viscosity, mobility and stability is based on the amyloid novel starch matter of non-gelatinization cigarette glue.
The object of the invention is to be achieved through the following technical solutions:
A kind of based on the amyloid novel starch matter of non-gelatinization cigarette glue, be grouped into by the one-tenth of following weight ratio:
Water 35%-85%
Non-gelatinization kind of starch 10%-60%
Sanitas 0.05%-1%
Defoamer 0.05%-1%
Functional agent 0-5%
Described non-gelatinization kind of starch refers to without the treated starch of gelatinization reaction, comprises degraded class-ester starch and degraded class-etherification starch.
Described degraded class-ester starch refers to pyrolysis-Acetylated potato starch, pyrolysis-organic phosphate starch, enzymolysis-Acetylated potato starch, enzymolysis-organic phosphate starch, sour sex change-Acetylated potato starch, sour sex change-organic phosphate starch, oxidation-Acetylated potato starch, oxidation-organic phosphate starch, preferred acid sex change-organic phosphate starch, oxidation-organic phosphate starch.
Described degraded class-etherification starch refers to pyrolysis-hydroxyethyl starch, pyrolysis-hydroxypropyl starch, pyrolysis-carboxymethylated starch, enzymolysis-hydroxyethyl starch, enzymolysis-hydroxypropyl starch, enzymolysis-carboxymethylated starch, sour sex change-hydroxyethyl starch, sour sex change-hydroxypropyl starch, sour sex change-carboxymethylated starch, oxidation-hydroxyethyl starch, oxidation-hydroxypropyl starch, oxidation-carboxymethylated starch, preferred acid sex change-hydroxypropyl starch, sour sex change-carboxymethylated starch, oxidation-hydroxypropyl starch, oxidation-carboxymethylated starch.
In addition, above-mentioned non-gelatinization kind of starch can carry out with any one or multiple and preferred ative starch in ative starch, cross-linking starch, Acetylated potato starch, organic phosphate starch, hydroxyethylamyle, hydroxypropylated starch, carboxymethyl starch and acetate starch the equivalent substitution of part, and itself and the amyloid proportional range of non-gelatinization are about 5:1-0:1.
Treated starch in the present invention is all by ative starch, modification obtains, wherein ative starch select in following kind any one or multiple: W-Gum, Starch rice, wheat starch, barley starch, sorghum starch, yam starch, tapioca (flour), sweet potato starch, green starch, pea starch, bajiao banana starch, sago starch and waxy starch are as waxy corn starch, Waxy Rice Starch, wax sorghum starch etc.
Non-gelatinization kind of starch in the present invention refers to and adopts multiple method of modifying to carry out composite modified product to ative starch, as pyrolysis-Acetylated potato starch refers to the product that adopts the esterification process of method for pyrolysis and acetic acid esterified ative starch to be carried out to modification, oxidation-hydroxyethyl starch refers to and adopts method for oxidation and hydroxyethylated etherification method to carry out composite modified product to ative starch.
Sanitas in the present invention select in following kind any one or multiple: phenylformic acid and its esters, potassium sorbate, Sodium dehydroacetate, calcium propionate, sodium Diacetate, Sodium.alpha.-hydroxypropionate, nisin, tennecetin etc.
Defoamer in the present invention select in following kind any one or multiple: ester class, mineral oil and the compound defoamers etc. such as polyethers, Tweens, Tripolyglycerol monostearates such as the alcohols such as propylene glycol, dimethyl-silicon wet goods are polysiloxane-based, polypropylene glycerol aether.
Functional agent in the present invention select in following kind any one or multiple: glyceryl monostearate, CSL sodium; The polyalcohols such as glycerine, sorbyl alcohol; The carbohydrates such as sucrose; Some mineral substance classes such as wilkinite, silicon-dioxide; Some vegetable jelly such as bean gum, gelatine, gelatin class.By selecting suitable functional agent, can play tackify, improve liquidity and the effect such as stability.
The solid content of the starchiness cigarette glue in the present invention is about 15%-65%(weight), pH value is about 3-9 and preferred 5-8, viscosity is about 100cps-20000cps(25 ℃), and it has good viscosity, mobility and stability, can stablize more than three months time of depositing at normal temperatures.
Any one sizing agent that starchiness cigarette glue in the present invention can be used as in production of cigarettes uses, as overlapping glue, connect mouth glue, filter stick centre-line glue, packing glue and aluminum foil composite glue etc., and go for the cigarette machine of any type, particularly the above cigarette machines of 7000/minute of single rifle speed of a motor vehicle and the speed of a motor vehicle are greater than the cigarette machines faster such as 10000/minute.
Starchiness cigarette glue in the present invention also relates to the occasion of paper bonding applicable to other occasion as binding papers, bottle label, packing box etc.
Embodiment
Below in conjunction with embodiment, the present invention is done to further detailed description, but the scope of the invention is not limited to these.
Embodiment 1
Adopt sour sex change-organic phosphate starch of 10%, sour sex change-hydroxypropyl starch of 20%, 10% ative starch, 1% Sodium Benzoate, 1% dimethyl silicone oil, 1% gelatin and 57% water to prepare starchiness cigarette glue, all treated starches prepare by W-Gum.The preparation flow of starchiness cigarette glue is: first sour sex change-organic phosphate starch, sour sex change-hydroxypropyl starch and ative starch are added to the water, then add successively Sodium Benzoate, dimethyl silicone oil and gelatin, be uniformly mixed.
After testing: the product of making has 40% solid content, in the time of 25 ℃, brookfield viscosity is 1250cps, and the viscosity of this product was stable in three months, and has good viscosity and mobility etc.
Embodiment 2
Adopt oxidation-hydroxypropyl starch of 20%, oxidation-carboxymethylated starch of 25%, 10% Acetylated potato starch, 0.25% potassium sorbate, 0.75% dimethyl silicone oil, 1% pectin and 43% water to prepare starchiness cigarette glue, all treated starches prepare by Starch rice.The preparation flow of starchiness cigarette glue is: first oxidation-hydroxypropyl starch, oxidation-carboxymethylated starch and acetate starch are added to the water, then add successively potassium sorbate, dimethyl silicone oil and pectin, be uniformly mixed.
After testing: the product of making has 56% solid content, in the time of 25 ℃, brookfield viscosity is 14620cps, and the viscosity of this product was stable in three months, and has good viscosity and mobility etc.
Embodiment 3
Adopt pyrolysis-Acetylated potato starch of 5%, pyrolysis-organic phosphate starch of 5%, pyrolysis-hydroxyethyl starch of 10%, 5% cross-linking starch, 1% Sodium dehydroacetate, 1% propylene glycol, 5% sorbyl alcohol and 68% water to prepare starchiness cigarette glue, all treated starches prepare by yam starch.The preparation flow of starchiness cigarette glue is: first pyrolysis-Acetylated potato starch, pyrolysis-organic phosphate starch, pyrolysis-hydroxyethyl starch and cross-linking starch are added to the water, then add successively Sodium dehydroacetate, propylene glycol and sorbyl alcohol, be uniformly mixed.
After testing: the product of making has 30% solid content, in the time of 25 ℃, brookfield viscosity is 350cps, and the viscosity of this product was stable in three months, and has good viscosity and mobility etc.
Embodiment 4
Adopt oxidation-organic phosphate starch of 10%, oxidation-hydroxyethyl starch of 10%, enzymolysis-organic phosphate starch of 10%, 10% ative starch, 1% sodium Diacetate, 1% mineral oil, 5% glucose and 53% water to prepare starchiness cigarette glue, all treated starches prepare by tapioca (flour).The preparation flow of starchiness cigarette glue is: first oxidation-organic phosphate starch, oxidation-hydroxyethyl starch, enzymolysis-organic phosphate starch and ative starch are added to the water, then add successively sodium Diacetate, mineral oil and glucose, be uniformly mixed.
After testing: products obtained therefrom has 45% solid content, in the time of 25 ℃, brookfield viscosity is 7290cps, and the viscosity of this product was stable in three months, and has good viscosity and mobility etc.
Embodiment 5
Adopt sour sex change-carboxymethylated starch of 5%, enzymolysis-organic phosphate starch of 5%, 3% pyrolysis-hydroxyethylated, oxidation-hydroxypropyl starch of 2%, 1% Sodium.alpha.-hydroxypropionate, 1% polyoxyethylene polyoxypropylene amidogen ether and 78% water to prepare starchiness cigarette glue, all treated starches prepare by wheat starch.The preparation flow of starchiness cigarette glue is: first sour sex change-carboxymethylated starch, enzymolysis-organic phosphate starch, pyrolysis-hydroxyethylated and oxidation-hydroxypropyl starch are added to the water, then add successively Sodium.alpha.-hydroxypropionate and polyoxyethylene polyoxypropylene amidogen ether, be uniformly mixed by.
After testing: products obtained therefrom has 20% solid content, in the time of 25 ℃, brookfield viscosity is 250cps, and the viscosity of this product was stable in three months, and has good viscosity and mobility etc.
Embodiment 6
Adopt pyrolysis-Acetylated potato starch of 15%, sour sex change-hydroxypropyl starch of 20%, 10% hydroxyethylamyle, 1% potassium sorbate, 1% polyoxypropylene ethylene oxide glyceryl ether, 2% wilkinite and 51% water to prepare starchiness cigarette glue, all treated starches prepare by Waxy Rice Starch.The preparation flow of starchiness cigarette glue is: first pyrolysis-Acetylated potato starch, sour sex change-hydroxypropyl starch and hydroxyethylamyle are added to the water, then add successively potassium sorbate, polyoxypropylene ethylene oxide glyceryl ether and wilkinite, be uniformly mixed.
Products obtained therefrom has 47% solid content after testing, and in the time of 25 ℃, brookfield viscosity is 9350cps, and the viscosity of this product was stable in three months, and has good viscosity and mobility etc.
Claims (9)
1. based on the amyloid novel starch matter of a non-gelatinization cigarette glue, it is characterized in that: by following weight
The one-tenth of ratio is grouped into:
Water 35%-85%
Non-gelatinization kind of starch 10%-60%
Sanitas 0.05%-1%
Defoamer 0.05%-1%
Functional agent 0-5%
Described non-gelatinization kind of starch refers to without the treated starch of gelatinization reaction, comprises degraded class-ester starch and degraded class-etherification starch.
2. one according to claim 1 is based on the amyloid novel starch matter of non-gelatinization cigarette glue, it is characterized in that: described degraded class-ester starch refers to pyrolysis-Acetylated potato starch, pyrolysis-organic phosphate starch, enzymolysis-Acetylated potato starch, enzymolysis-organic phosphate starch, sour sex change-Acetylated potato starch, sour sex change-organic phosphate starch, oxidation-Acetylated potato starch, oxidation-organic phosphate starch, preferred acid sex change-organic phosphate starch, oxidation-organic phosphate starch.
3. one according to claim 1 is based on the amyloid novel starch matter of non-gelatinization cigarette glue, it is characterized in that: described degraded class-etherification starch refers to pyrolysis-hydroxyethyl starch, pyrolysis-hydroxypropyl starch, pyrolysis-carboxymethylated starch, enzymolysis-hydroxyethyl starch, enzymolysis-hydroxypropyl starch, enzymolysis-carboxymethylated starch, acid sex change-hydroxyethyl starch, acid sex change-hydroxypropyl starch, acid sex change-carboxymethylated starch, oxidation-hydroxyethyl starch, oxidation-hydroxypropyl starch, oxidation-carboxymethylated starch, preferred acid sex change-hydroxypropyl starch, acid sex change-carboxymethylated starch, oxidation-hydroxypropyl starch, oxidation-carboxymethylated starch.
4. one according to claim 1 is based on the amyloid novel starch matter of non-gelatinization cigarette glue, it is characterized in that: above-mentioned non-gelatinization kind of starch can carry out with any one or multiple and preferred ative starch in ative starch, cross-linking starch, Acetylated potato starch, organic phosphate starch, hydroxyethylamyle, hydroxypropylated starch, carboxymethyl starch and acetate starch the equivalent substitution of part, and itself and the amyloid proportional range of non-gelatinization are about 5:1-0:1.
5. one according to claim 1 is based on the amyloid novel starch matter of non-gelatinization cigarette glue, it is characterized in that: described treated starch is all by ative starch, modification obtains, wherein ative starch select in following kind any one or multiple: W-Gum, Starch rice, wheat starch, barley starch, sorghum starch, yam starch, tapioca (flour), sweet potato starch, green starch, pea starch, bajiao banana starch, sago starch and waxy starch are as waxy corn starch, Waxy Rice Starch, wax sorghum starch.
6. one according to claim 1, based on the amyloid novel starch matter of non-gelatinization cigarette glue, is characterized in that: sanitas select in following kind any one or multiple: phenylformic acid and its esters, potassium sorbate, Sodium dehydroacetate, calcium propionate, sodium Diacetate, Sodium.alpha.-hydroxypropionate, nisin, tennecetin.
7. one according to claim 1, based on the amyloid novel starch matter of non-gelatinization cigarette glue, is characterized in that: described defoamer select in following kind any one or multiple: ester class, mineral oil and the compound defoamers such as polyethers, Tweens, Tripolyglycerol monostearates such as the alcohols such as propylene glycol, dimethyl-silicon wet goods are polysiloxane-based, polypropylene glycerol aether.
8. one according to claim 1, based on the amyloid novel starch matter of non-gelatinization cigarette glue, is characterized in that: described functional agent select in following kind any one or multiple: glyceryl monostearate, CSL sodium; The polyalcohols such as glycerine, sorbyl alcohol; The carbohydrates such as sucrose; Some mineral substance classes such as wilkinite, silicon-dioxide; Some vegetable jelly such as bean gum, gelatine, gelatin class.
9. one according to claim 1, based on the amyloid novel starch matter of non-gelatinization cigarette glue, is characterized in that: the solid content of described starchiness cigarette glue is about 15%-65%, and pH value is about 3-9 and preferred 5-8, and viscosity is about 100cps-20000cps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210400085.3A CN103773274B (en) | 2012-10-20 | 2012-10-20 | One kind is based on the non-amyloid novel starch matter cigarette glue of gelatinization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210400085.3A CN103773274B (en) | 2012-10-20 | 2012-10-20 | One kind is based on the non-amyloid novel starch matter cigarette glue of gelatinization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103773274A true CN103773274A (en) | 2014-05-07 |
| CN103773274B CN103773274B (en) | 2018-04-17 |
Family
ID=50566050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210400085.3A Active CN103773274B (en) | 2012-10-20 | 2012-10-20 | One kind is based on the non-amyloid novel starch matter cigarette glue of gelatinization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103773274B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110003817A (en) * | 2019-02-25 | 2019-07-12 | 朱东洋 | A kind of starch type cigarette glue and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1135231A (en) * | 1993-11-18 | 1996-11-06 | 赖克霍德化学公司 | Starch-based adhesive |
| CN1769361A (en) * | 2004-11-03 | 2006-05-10 | 胡正水 | Starchiness adhesives and preparation method |
-
2012
- 2012-10-20 CN CN201210400085.3A patent/CN103773274B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1135231A (en) * | 1993-11-18 | 1996-11-06 | 赖克霍德化学公司 | Starch-based adhesive |
| CN1769361A (en) * | 2004-11-03 | 2006-05-10 | 胡正水 | Starchiness adhesives and preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 李子东等: "《胶黏剂助剂》", 30 June 2009, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110003817A (en) * | 2019-02-25 | 2019-07-12 | 朱东洋 | A kind of starch type cigarette glue and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103773274B (en) | 2018-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103773269B (en) | A kind of starchiness cigarette glue that contains synthetic polymer | |
| CN1095864C (en) | Starch-based adhesive | |
| EP0897415B1 (en) | Maltodextrin-based adhesives | |
| CN105473620B (en) | Aqueous adhesive composition and its application based on starch | |
| CN103242786B (en) | A kind of preparation method of environment-friendly modified starch cigarette glue | |
| CN103756591A (en) | Glue for producing corrugated case at high speed and preparation method thereof | |
| CN105838283B (en) | A kind of wallpaper with can high temperature packing glutinous rice glue and preparation method | |
| CN103773267A (en) | Amyloid cigarette adhesive based on degradable gelatinized starch and etherified gelatinized starch | |
| CN103773273B (en) | A kind of based on esterification class-pasted starch and the amyloid starchiness cigarette glue of non-gelatinization | |
| CN103773277B (en) | A kind of based on etherificate class-pasted starch and the amyloid starchiness cigarette glue of non-gelatinization | |
| CN103773275A (en) | Novel amyloid cigarette adhesive based on composite modified gelatinized starch | |
| KR101527783B1 (en) | Starch-based adhesives for corrugated cardboard and manufacturing method of the same | |
| CN103773268B (en) | A kind of novel starch matter cigarette glue containing modified-cellulose | |
| CN103773274A (en) | Novel amyloid cigarette adhesive based on non-gelatinized starch | |
| CN100556973C (en) | Starch-based adhesive and preparation method | |
| CN103773272A (en) | Novel amyloid cigarette adhesive based on non-gelatinized starch | |
| WO2015141879A1 (en) | Composition for corrugated cardboard adhesive and adhesive for corrugated cardboard | |
| CN103773271A (en) | Novel starchy cigarette adhesive based on degradation-type gelatinized starch and esterification-type gelatinized starch | |
| CN103773270A (en) | Novel amyloid cigarette adhesive based on composite modified gelatinized starch | |
| Kruger et al. | Starch based adhesives | |
| CN105111972B (en) | Preparation method of adhesive for cigarette packaging | |
| CN104946163B (en) | High-speed cigarette machine modified starch base adhesive | |
| US20240026190A1 (en) | Starch-based aqueous adhesive composition | |
| CN107474756A (en) | A kind of glue and its preparation technology | |
| CN112029442A (en) | Environment-friendly glue, and preparation method and application 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |