CN110395962A - A kind of production technology of the steam-pressing aero-concrete containing high calcium extra dry red wine flyash - Google Patents
A kind of production technology of the steam-pressing aero-concrete containing high calcium extra dry red wine flyash Download PDFInfo
- Publication number
- CN110395962A CN110395962A CN201910677391.3A CN201910677391A CN110395962A CN 110395962 A CN110395962 A CN 110395962A CN 201910677391 A CN201910677391 A CN 201910677391A CN 110395962 A CN110395962 A CN 110395962A
- Authority
- CN
- China
- Prior art keywords
- flyash
- steam
- red wine
- dry red
- extra dry
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/12—Apparatus or processes for treating or working the shaped or preshaped articles for removing parts of the articles by cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/18—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
- C04B28/186—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type containing formed Ca-silicates before the final hardening step
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
Abstract
A kind of production technology of the steam-pressing aero-concrete containing high calcium extra dry red wine flyash, process flow steps are as follows: slurrying → grinding → casting → cutting → steam-cured;Slurrying: high calcium extra dry red wine flyash, quartz sand, gypsum, water are stirred evenly in proportion, spare slurry is made;After quick lime is worn into fine powder, casting: it is stirred evenly by batcher feed as mixed slurry after spare slurry and powdery quick lime, cement are measured in proportion, being proportionally added into aluminum powder solution becomes the mixture of liquid phase shape, aluminium powder reacts under alkaline environment with medium water, generate hydrogen, quick lime is reacted with water, the silica in quartz sand under conditions of hydrothermal synthesis with the Ca (0H) in cement, quick lime2And AL2O3Reaction generates hydrated calcium silicate and drated calcium aluminate, forms green body;To steam-cured after green body cutting;The hydrated calcium silicate and drated calcium aluminate of generation enhance the intensity of product jointly, solve the problems, such as the resistance to compression, antidetonation, tension and the shearing strength that are difficult to be promoted wall in the prior art.
Description
Technical field
The present invention relates to decorative building material field, especially a kind of steam-pressing aero-concrete containing high calcium extra dry red wine flyash
Production technology.
Background technique
Currently, the wall of traditional structure is mostly brick mix structure or quotient's concrete structure, since masonry strength is lower, thus component
Sectional dimension is larger, this has been resulted in, and material utilization amount is big, and self weight is too big, because traditional wall is substantially manually mode
Based on, the construction amount of labour is big.The tension and shearing strength of traditional wall body structure are all very low, thus shock resistance is poor, in use
By certain limit value, compression strength is also poor.Therefore, resistance to compression, antidetonation, tension and the shearing strength of wall how are promoted,
As insoluble technical problem for a long time.
In view of the foregoing, a kind of production work of steam-pressing aero-concrete containing high calcium extra dry red wine flyash is now developed
Skill.
Summary of the invention
Purpose of the invention is to overcome the shortcomings in the prior art, provides a kind of steaming containing high calcium extra dry red wine flyash
The production technology of pressing aero-concrete, the main raw material(s) high calcium extra dry red wine in the coal ash autoclaved air-entrained concrete building block of high calcium extra dry red wine
Flyash generally requires SiO in quartz sand2Content is greater than 90%, mainly provides SiO in high calcium extra dry red wine flyash2, SiO2In water
Under conditions of thermal synthesis with the Ca (0H) in cement, quick lime2And AL2O3Reaction generates hydrated calcium silicate and drated calcium aluminate,
Hydrated calcium silicate and drated calcium aluminate enhance the intensity of product jointly, solve and are difficult to be promoted the anti-of wall in the prior art
Pressure, antidetonation, the problem of tension and shearing strength.
The present invention to achieve the goals above, adopts the following technical scheme that a kind of steam pressure containing high calcium extra dry red wine flyash
The production technology of air entrained concrete, process flow steps are as follows: slurrying → grinding → casting → cutting → steam-cured;
Slurrying: high calcium extra dry red wine flyash, quartz sand, gypsum, water are stirred evenly in proportion, spare slurry is made;Weight
Percentage are as follows: high calcium extra dry red wine flyash: 42~43%, quartz sand: 54~55%, gypsum: 1.1~4.7%, assemble the sum of weight
It is 100%;The ratio of high calcium extra dry red wine flyash, quartz sand, the mixture of gypsum and water are as follows: 1:0.6~0.75;In quartz sand
Dioxide-containing silica reaches 98% or more;
Grinding: lump lime is levigate, and fineness meets 0.08 square hole screen, tails over≤15%;
Casting: it is stirred into after spare slurry is measured in proportion with powdery quick lime, cement by batcher feed
For mixed slurry, the ratio of spare slurry and powdery quick lime, cement are as follows: 1:0.15~0.25:0.09~0.11, and make to mix
Slurry temperature is increased to 38~42 °, and being proportionally added into aluminum powder solution becomes the mixture of liquid phase shape, mixed slurry and aluminum powder solution
Ratio are as follows: mold after stirring 25~35 seconds, is injected in 1:0.006~0.009, and the mixture of liquid phase state passes through 25~35 points
Clock time, aluminium powder react under alkaline environment with medium water, generate hydrogen, so that liquid phase has air hole structure, meanwhile, quick lime
Reacted with water, the silica in quartz sand under conditions of hydrothermal synthesis with the Ca (0H) in cement, quick lime2And AL2O3Instead
It answers, generates hydrated calcium silicate and drated calcium aluminate, release heat, be thickened liquid phase, gradually form green body;
Cutting: green body is cut into the green body of specified specification on cutting machine;
It is steam-cured: to be put into still kettle after the green body of well cutting is organized into groups, through 10~12 hour steam press maintenances, carry out hydro-thermal
Exchange and reaction, form silicate product, and the autoclave aerated concrete building block containing high calcium extra dry red wine flyash is made after kettle out.
The beneficial effects of the present invention are: the present invention meets construction material is to the development trend of wall thermal insulating, with inorganic guarantor
Temperature replaces organic heat-insulating, replaces external thermal insulation with self-heat conserving.The air-entrained concrete building block of high calcium extra dry red wine flyash and quartz sand mixing
Have the function of lightweight, heat preservation, sound insulation etc., belong to self-insulation wall material, and it can greatly shorten work with integrated construction
Phase, low cost, heat insulation effect is good, is not take up the interior space.
Quartz sand is exactly the fine sand containing high purity silicon in fact, these raw material were examined by authoritative department, no
Substance containing any negative unhealthy, it is all high-quality that product radioactivity index, which is shown,.
Quartz sand autoclave aerated concrete building block is light, and wall passes to the load of beam, column with regard to small, in this manner it is possible to suitable
When the arrangement of reinforcement for reducing beam column construction, the construction material than traditional wall saves amount of reinforcement 5%-10%, reduces seismic force pair
The effect of building, shock resistance are improved, especially skyscraper, and effect becomes apparent from;Quartz sand steam-pressing aero-concrete
The prominent advantage of building block is heat preservation, and heat insulation effect will be much better than the wall of traditional structure, in environmental protection, because traditional brick is main
The raw material used are clays, so occupancy farmland that can be excessive, influences agricultural production, good heat-insulation effect, summer solarization exterior wall
It will not feel that wall generates heat, winter cold air will not be transmitted by wall, and making to live in indoor people may feel that
It is cool in summer and warm in winter.
SiO in quartz sand2Content is greater than 90%, makes its processing performance, product properties, cost etc. the most excellent in this way
It more, is the principal item of current autoclave aerated concrete building block development.
SiO is mainly provided in quartz sand2, SiO2Under conditions of hydrothermal synthesis with the Ca (0H) in cement, quick lime2With
AL2O3Reaction, generates hydrated calcium silicate and drated calcium aluminate, hydrated calcium silicate and drated calcium aluminate enhance the strong of product jointly
Degree, solves the problems, such as the resistance to compression, antidetonation, tension and the shearing strength that are difficult to be promoted wall in the prior art.
Rouge and powder coal ash its calcium oxide content that the present invention uses has reached 15.22%, belongs to one kind of high-calcium fly ass,
And loss on ignition is also higher, and high-calcium fly ass is typically referred to thermal power plant and is given off using lignite, ub-bituminous coal as fuel
A kind of calcium oxide component higher (be greater than 10%) flyash, be a kind of not only containing certain amount hydraulicity crystalline mineral but also to have contained
There is the material of potential activity substance.
Compared with ordinary fly ash, high-calcium fly ass partial size is smaller, has as cement mixture or concrete admixture
The advantages that water-reducing effect is good, early strength development is fast, but it contains a certain amount of free calcium oxide, if improper use, is used as
It is bad etc. a series of that cement mixture and concrete, mortar admixture, air entrained concrete raw material are likely to result in volume stability
Consequence.
In air entrained concrete production practices, the amount of mixing of rouge and powder coal ash can increase and decrease, raw stone according to Lime Quality quality
When ash is high-quality, it can mix more;When Lime Quality difference, it can mix less.
The amount of mixing of rouge and powder coal ash can increase and decrease according to the quality with its flyash of arranging in pairs or groups, other flyash are fresh, face
When color white (i.e. loss on ignition is low), it can mix more;Conversely, can be mixed less when color black (i.e. fire loss volume).
If occurred sticky end in use, when being not easy bottom skin, moisture can be such as reduced, increases and does by technique adjustment
Material uses, or improves temperature etc. to eliminate sticky end phenomenon.
Fresh rouge and powder coal ash preferably utilizes in time, and assembly time is more than 24 hours, is easy to appear hardened phenomenon, this is therein
The reason of resolution of calcium oxide and water is reacted, hardened blocky flyash can only play the role of filler material, in green body into after kettle
Also it is difficult to regenerate new silicate in a series of hydro-thermal reactions, it is little to the contribution of product compression strength, therefore, have occurred and that
Hardened should not use, or should not be mostly used.
Note: rational management haulage vehicle, the same day are transported to, and the same day is finished, and are sure not storage too long, cause hardened.
Dry method slurrying can be used when having ready conditions, exactly acquisition extra dry red wine flyash transport workshop tank is deposited in power plant, and when slurrying is even
Speed addition, avoid wherein calcium oxide cleared up in advance with water, while can rationally utilize calcium oxide therein.
Specific embodiment
Below with reference to embodiment, invention is further described in detail with specific embodiment:
Embodiment 1
Process flow steps are as follows: slurrying → grinding → casting → cutting → steam-cured;
Slurrying: high calcium extra dry red wine flyash, quartz sand, gypsum, water are stirred evenly in proportion, spare slurry is made;Weight
Percentage are as follows: high calcium extra dry red wine flyash: 42~43%, quartz sand: 54~55%, gypsum: 1.1~4.7%, assemble the sum of weight
It is 100%;The ratio of high calcium extra dry red wine flyash, quartz sand, the mixture of gypsum and water are as follows: 1:0.6~0.75;In quartz sand
Dioxide-containing silica reaches 98% or more;
Grinding: lump lime is levigate, and fineness meets 0.08 square hole screen, tails over≤15%;
Casting: it is stirred into after spare slurry is measured in proportion with powdery quick lime, cement by batcher feed
For mixed slurry, the ratio of spare slurry and powdery quick lime, cement are as follows: 1:0.15~0.25:0.09~0.11, and make to mix
Slurry temperature is increased to 38~42 °, and being proportionally added into aluminum powder solution becomes the mixture of liquid phase shape, mixed slurry and aluminum powder solution
Ratio are as follows: mold after stirring 25~35 seconds, is injected in 1:0.006~0.009, and the mixture of liquid phase state passes through 25~35 points
Clock time, aluminium powder react under alkaline environment with medium water, generate hydrogen, so that liquid phase has air hole structure, meanwhile, quick lime
Reacted with water, the silica in quartz sand under conditions of hydrothermal synthesis with the Ca (0H) in cement, quick lime2And AL2O3Instead
It answers, generates hydrated calcium silicate and drated calcium aluminate, release heat, be thickened liquid phase, gradually form green body;
Cutting: green body is cut into the green body of specified specification on cutting machine;
It is steam-cured: to be put into still kettle after the green body of well cutting is organized into groups, through 10~12 hour steam press maintenances, carry out hydro-thermal
Exchange and reaction, form silicate product, and the autoclave aerated concrete building block containing high calcium extra dry red wine flyash is made after kettle out.
Claims (1)
1. a kind of production technology of the steam-pressing aero-concrete containing high calcium extra dry red wine flyash, it is characterised in that: process flow step
Suddenly are as follows: slurrying → grinding → casting → cutting → steam-cured;
Slurrying: high calcium extra dry red wine flyash, quartz sand, gypsum, water are stirred evenly in proportion, spare slurry is made;Weight percent
Than are as follows: high calcium extra dry red wine flyash: 42~43%, quartz sand: 54~55%, gypsum: 1.1~4.7%, assembling the sum of weight is
100%;The ratio of high calcium extra dry red wine flyash, quartz sand, the mixture of gypsum and water are as follows: 1:0.6~0.75;Two in quartz sand
Silica content reaches 98% or more;
Grinding: lump lime is levigate, and fineness meets 0.08 square hole screen, tails over≤15%;
Casting: being stirred evenly after spare slurry and powdery quick lime, cement are measured in proportion by batcher feed becomes mixed
Close slurry, the ratio of spare slurry and powdery quick lime, cement are as follows: 1:0.15~0.25:0.09~0.11, and make mixed slurry
Temperature is increased to 38~42 °, and being proportionally added into aluminum powder solution becomes the mixture of liquid phase shape, the ratio of mixed slurry and aluminum powder solution
Example are as follows: mold after stirring 25~35 seconds, is injected, when the mixture of liquid phase state passes through 25~35 minutes in 1:0.006~0.009
Between, aluminium powder reacts under alkaline environment with medium water, hydrogen is generated, so that liquid phase has air hole structure, meanwhile, quick lime and water
Reaction, silica in quartz sand under conditions of hydrothermal synthesis with the Ca (0H) in cement, quick lime2And AL2O3Reaction,
Hydrated calcium silicate and drated calcium aluminate are generated, heat is released, is thickened liquid phase, gradually forms green body;
Cutting: green body is cut into the green body of specified specification on cutting machine;
It is steam-cured: to be put into still kettle after the green body of well cutting is organized into groups, through 10~12 hour steam press maintenances, carry out hydrothermal exchange
And reaction, silicate product is formed, the autoclave aerated concrete building block containing high calcium extra dry red wine flyash is made after kettle out.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910677391.3A CN110395962A (en) | 2019-07-25 | 2019-07-25 | A kind of production technology of the steam-pressing aero-concrete containing high calcium extra dry red wine flyash |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910677391.3A CN110395962A (en) | 2019-07-25 | 2019-07-25 | A kind of production technology of the steam-pressing aero-concrete containing high calcium extra dry red wine flyash |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110395962A true CN110395962A (en) | 2019-11-01 |
Family
ID=68326046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910677391.3A Pending CN110395962A (en) | 2019-07-25 | 2019-07-25 | A kind of production technology of the steam-pressing aero-concrete containing high calcium extra dry red wine flyash |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110395962A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111268985A (en) * | 2020-01-15 | 2020-06-12 | 浙江富春江环保热电股份有限公司 | Autoclaved aerated concrete block and preparation process thereof |
CN113524417A (en) * | 2020-04-21 | 2021-10-22 | 河南新时代建材有限公司 | Production process of autoclaved aerated concrete containing high-calcium red fly ash |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101891499A (en) * | 2010-07-25 | 2010-11-24 | 贵州长泰源节能建材有限公司 | Method for producing autoclaved aerated concrete from double siliceous raw materials |
CN102633530A (en) * | 2012-05-15 | 2012-08-15 | 毕节市长泰源节能建材有限公司 | Technique for producing aerated concrete building blocks from high-calcium sulfur-fixing fly ash and common fly ash |
US20130087075A1 (en) * | 2010-04-29 | 2013-04-11 | Solvay Sa | Process for the Manufacture of Aerated Concrete Construction Materials and Construction Materials Obtained Thereof |
CN104030722A (en) * | 2014-06-24 | 2014-09-10 | 安徽省神洲建材科技有限公司 | Production technology of aerated concrete block |
CN105174894A (en) * | 2015-10-12 | 2015-12-23 | 吴江市范氏新型建材制品有限公司 | Autoclaved aerated concrete brick and preparation method thereof |
CN109400096A (en) * | 2018-11-19 | 2019-03-01 | 遵义景程环保材料有限公司 | A method of air entrained concrete is produced with flyash |
-
2019
- 2019-07-25 CN CN201910677391.3A patent/CN110395962A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130087075A1 (en) * | 2010-04-29 | 2013-04-11 | Solvay Sa | Process for the Manufacture of Aerated Concrete Construction Materials and Construction Materials Obtained Thereof |
CN101891499A (en) * | 2010-07-25 | 2010-11-24 | 贵州长泰源节能建材有限公司 | Method for producing autoclaved aerated concrete from double siliceous raw materials |
CN102633530A (en) * | 2012-05-15 | 2012-08-15 | 毕节市长泰源节能建材有限公司 | Technique for producing aerated concrete building blocks from high-calcium sulfur-fixing fly ash and common fly ash |
CN104030722A (en) * | 2014-06-24 | 2014-09-10 | 安徽省神洲建材科技有限公司 | Production technology of aerated concrete block |
CN105174894A (en) * | 2015-10-12 | 2015-12-23 | 吴江市范氏新型建材制品有限公司 | Autoclaved aerated concrete brick and preparation method thereof |
CN109400096A (en) * | 2018-11-19 | 2019-03-01 | 遵义景程环保材料有限公司 | A method of air entrained concrete is produced with flyash |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111268985A (en) * | 2020-01-15 | 2020-06-12 | 浙江富春江环保热电股份有限公司 | Autoclaved aerated concrete block and preparation process thereof |
CN113524417A (en) * | 2020-04-21 | 2021-10-22 | 河南新时代建材有限公司 | Production process of autoclaved aerated concrete containing high-calcium red fly ash |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101581131B (en) | Non-autoclaved aerated concrete building block and manufacturing method | |
CN102910889B (en) | Aerated concrete wall material containing river silt and preparation method thereof | |
CN102219415B (en) | Light sand without burning and preparation method thereof | |
CN106007782B (en) | Light porous self heat-preserving concrete building block and preparation method thereof | |
CN102515824A (en) | Super-light foam cement concrete and preparation method thereof | |
CN101327621A (en) | Steamed aerated concrete | |
CN110467393B (en) | 120MPa ultrahigh-strength silicate ceramsite concrete pipe pile matrix and preparation method thereof | |
CN105801063A (en) | Light-weight, heat-insulating and environment-friendly composite wall building material | |
CN105669146B (en) | Neutral sodium-salt alkali-activated slag steam pressure sand aerated concrete block and preparation method thereof | |
CN108069667A (en) | A kind of enhanced cement insulation board and preparation method thereof | |
CN103951358A (en) | Overall residential foamed lightweight wall body manufactured from construction waste and manufacturing method thereof | |
CN101143775B (en) | Large adulteration quantity fly ash gel material for building mortar and preparation method thereof | |
CN110395962A (en) | A kind of production technology of the steam-pressing aero-concrete containing high calcium extra dry red wine flyash | |
CN100443431C (en) | High strength light wall board material | |
CN106278029B (en) | A kind of alkali-activated carbonatite large-doping-amount fly ash cement foaming insulation board and preparation method thereof | |
CN108503295A (en) | A kind of fiber reinforced light fly ash-based geopolymer material and preparation method thereof | |
CN110372270A (en) | A kind of production technology of the steam-pressing aero-concrete containing carbide slag | |
CN109734403A (en) | A kind of preparation method of tufa stone cementitious material | |
CN105819778A (en) | Preparation method of light, thermal insulation, and environment-friendly composite wall construction material | |
CN109020459A (en) | A kind of method that red mud from sintering process prepares tobermorite type heat preservation fireproofing material | |
CN108455921A (en) | A kind of preparation method of flyash brick | |
CN105645991A (en) | High-doping-amount furnace slag aerated concrete building block and preparation method thereof | |
CN105084931A (en) | Modified fluorgypsum powder for wall material | |
CN107512881A (en) | A kind of external wall patch block of decorative heat preservation one and preparation method thereof | |
CN115259823B (en) | Lightweight high-strength low-thermal-conductivity aerated concrete and preparation method thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191101 |
|
RJ01 | Rejection of invention patent application after publication |