CN107571563B - Energy-saving sound-insulation grid cloth and preparation method thereof - Google Patents

Energy-saving sound-insulation grid cloth and preparation method thereof Download PDF

Info

Publication number
CN107571563B
CN107571563B CN201710782062.6A CN201710782062A CN107571563B CN 107571563 B CN107571563 B CN 107571563B CN 201710782062 A CN201710782062 A CN 201710782062A CN 107571563 B CN107571563 B CN 107571563B
Authority
CN
China
Prior art keywords
layer
grid layer
mesh
grid
weaving
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
Application number
CN201710782062.6A
Other languages
Chinese (zh)
Other versions
CN107571563A (en
Inventor
张占华
关雪松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui langlitong new material application Co.,Ltd.
Original Assignee
Wuhu Litong New Material Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhu Litong New Material Co ltd filed Critical Wuhu Litong New Material Co ltd
Priority to CN201710782062.6A priority Critical patent/CN107571563B/en
Publication of CN107571563A publication Critical patent/CN107571563A/en
Application granted granted Critical
Publication of CN107571563B publication Critical patent/CN107571563B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Building Environments (AREA)

Abstract

The invention relates to the field of building materials, in particular to an energy-saving sound-insulation grid cloth and a preparation method thereof; the preparation method comprises the steps of weaving a first grid layer, weaving a second grid layer and weaving a third grid layer; coating an adhesive on the surface of the first grid layer to form a first adhesive layer; coating an adhesive on the surface of the third grid layer to form a second adhesive layer; attaching the first sticky layer to one side of the second grid layer, attaching the second sticky layer to the other side of the second grid layer, and baking; the mesh cloth comprises a first mesh layer, a second mesh layer and a third mesh layer, wherein the first mesh layer, the second mesh layer and the third mesh layer are sequentially overlapped, and meshes of the first mesh layer are triangular; the energy-saving sound-insulation mesh cloth has a good sound-insulation effect, can effectively reduce indoor noise pollution, and provides a more comfortable and quiet life and working environment for a user.

Description

Energy-saving sound-insulation grid cloth and preparation method thereof
Technical Field
The invention relates to the field of building materials, in particular to energy-saving sound-insulation mesh cloth and a preparation method thereof.
Background
The mesh cloth is a special material, is firmer and more durable than common cloth, and has the characteristics of high strength and good alkali resistance. Mesh fabrics are widely used mainly: wall reinforcing materials (such as glass fiber wall mesh, GRC wallboard, EPS internal and external wall insulation boards, gypsum boards and the like); reinforced cement products (e.g., Roman columns, flues, etc.); granite, mosaic special mesh sheets and marble back-pasting meshes; waterproof coiled material cloth and asphalt roof are waterproof; the framework material of reinforced plastic and rubber products; a fire-proof plate; grinding wheel base step; geogrid for highway pavement; caulking strips for construction, and the like.
The existing mesh cloth has extremely poor sound insulation effect, even has no sound insulation effect, and is difficult to meet the market demand. In order to insulate the interior of a room, other decorative materials and the like are often required to be improved, which increases the cost and difficulty.
Disclosure of Invention
The invention aims to provide an energy-saving sound-insulation grid cloth which has a good sound-insulation effect, can effectively reduce indoor noise pollution and provides a more comfortable and quiet living and working environment for a user; and the sound insulation mesh fabric has low cost, convenient manufacture and convenient use.
Another object of the present invention is to provide a method for preparing an energy-saving sound-insulating mesh fabric, which can rapidly produce a sound-insulating mesh fabric, is simple to operate, saves labor and time, and can well save material resources and labor costs; the preparation method can effectively improve the sound insulation capability of the prepared mesh cloth.
The invention is realized by adopting the following technical scheme.
The invention provides an energy-saving sound-insulation mesh fabric which comprises a first mesh layer, a second mesh layer and a third mesh layer, wherein the first mesh layer, the second mesh layer and the third mesh layer are sequentially overlapped, and meshes of the first mesh layer are triangular.
The invention provides a preparation method of energy-saving sound-insulation mesh cloth, which comprises the steps of weaving a first mesh layer, weaving a second mesh layer and weaving a third mesh layer; coating an adhesive on the surface of the first grid layer to form a first adhesive layer; coating an adhesive on the surface of the third grid layer to form a second adhesive layer; and (3) attaching the first adhesive layer to one side of the second grid layer, attaching the second adhesive layer to the other side of the second grid layer, and baking.
The energy-saving sound insulation mesh fabric and the preparation method thereof have the beneficial effects that: the sound insulation mesh cloth has a good sound insulation effect, can effectively reduce indoor noise pollution, and provides a more comfortable and quiet living and working environment for a user; the sound insulation mesh fabric is low in cost, convenient to manufacture and convenient to use; the preparation method can rapidly produce the sound insulation mesh cloth, is simple to operate, saves labor and time, and can well save material resources and labor cost; the preparation method can effectively improve the sound insulation capability of the prepared mesh cloth.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a roller dryer according to an embodiment and an embodiment of the present invention.
Icon: 10-a roller dryer; 100-a first guide roll; 400-a second guide roller; 200-a first drying roller; 300-a second drying roller; 110-a first nip; 120-a second nip; 130-third nip.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The energy-saving sound-insulation mesh fabric and the preparation method thereof according to the embodiment of the invention are specifically described below.
The preparation method of the energy-saving sound insulation mesh fabric mainly comprises the following steps: and preparing a first grid layer, a second grid layer and a third grid layer, and then overlapping and bonding the first grid layer, the second grid layer and the third grid layer.
In detail, the first mesh layer, the second mesh layer and the third mesh layer may be bonded by applying an adhesive to the surface of the first mesh layer to form a first adhesive layer; coating an adhesive on the surface of the third grid layer to form a second adhesive layer; and (3) attaching the first adhesive layer to one side of the second grid layer, attaching a third grid layer to one side of the second grid layer, which is far away from the first grid layer, and baking.
The first mesh layer can be woven by basalt fibers, or glass fibers, or a mixture of basalt fibers and glass fibers. When the first grid layer is woven by mixing basalt fibers and glass fibers, the using amount of the basalt fibers and the glass fibers can be 1: 1-3; the cells of the first mesh layer may be of various regular polygons, for example: triangular, quadrilateral, hexagonal, etc. Preferably, the cells of the first mesh layer are triangular.
The second mesh layer may be woven from basalt fibers, or from glass fibers, or from a mixture of basalt fibers and glass fibers. When the second grid layer is woven by mixing basalt fibers and glass fibers, the using amount of the basalt fibers and the glass fibers can be 1: 1-3; the cells of the second mesh layer may be of various polygonal shapes, for example: triangular, quadrilateral, hexagonal, etc. Preferably, the meshes of the second mesh layer are quadrilateral or hexagonal.
The third mesh layer may be woven from basalt fibers, or from glass fibers, or from a mixture of basalt fibers and glass fibers. When the third grid layer is woven by mixing basalt fibers and glass fibers, the using amount of the basalt fibers and the glass fibers can be 1: 1-3; the cells of the third mesh layer may be of various polygonal shapes, for example: triangular, quadrilateral, hexagonal, etc. Preferably, the cells of the third mesh layer are triangular.
It should be noted that, the first mesh layer and the third mesh layer on both sides of the second mesh layer are both triangular, and when the meshes of the second mesh layer are quadrilateral or hexagonal, the noise absorption capacity of the energy-saving sound-insulation mesh cloth can be effectively improved, thereby ensuring that the mesh cloth has a good sound-insulation effect. Furthermore, the mechanical strength, toughness and the like of the mesh cloth can be improved by weaving the mesh layer with a mixture of basalt fibers and glass fibers, and the sound insulation effect of the sound insulation mesh layer can be improved by utilizing the loose texture of the basalt fibers.
The adhesive may include plastic, stabilizer and perlite powder. In detail, the coating composition can comprise the following components in parts by weight: 100-120 parts of plastic, 10-30 parts of stabilizer and 10-20 parts of perlite powder. The plastic cement can successfully bond the grid layers, the perlite powder can be uniformly attached to the grid layers, and the mechanical strength, toughness and the like of the energy-saving sound-insulation grid cloth can be further enhanced.
The perlite powder is added into the adhesive to absorb certain noise by utilizing tiny cracks in the perlite powder, so that the sound insulation effect of the energy-saving sound insulation grid layer is improved. Preferably, the particle size of the perlite powder can be 700-800 meshes, and the perlite powder is controlled and added according to the particle size, so that the perlite powder can be dispersed in the plastic more uniformly, and sufficient cracks in the perlite powder can be ensured, and the grid cloth is ensured to have a good sound insulation effect.
The above-mentioned baking after the stacking and bonding can be performed in the roll dryer 10. The roller dryer 10 may include a first guide roller 100, a second guide roller 400, a first drying roller 200, and a second drying roller 300, the roller bodies may be disposed in a housing of the roller dryer 10 and may be rotatably disposed, and axes of the first guide roller 100, the second guide roller 400, the first drying roller 200, and the second drying roller 300 may be parallel; the first drying roller 200 and the second drying roller 300 are clamped between the first guide roller 100 and the second guide roller 400, a first nip 110 is formed between the first guide roller 100 and the first drying roller 200, a second nip 120 is formed between the first drying roller 200 and the second drying roller 300, and a third nip 130 is formed between the second drying roller 300 and the second guide roller 400. Note that, the first drying roller 200 and the second drying roller 300 have a heating function, for example: the surfaces of the first drying roller 200 and the second drying roller 300 may be provided as heat-generating electrode sheets, etc.; the temperature for drying may be 50-60 deg.C. When the roller type dryer 10 is used for drying, the first grid layer, the second grid layer and the third grid layer can be attached to each other more tightly after drying, and the mechanical property, the toughness and the like of the energy-saving sound-insulation grid cloth are improved.
When the energy-saving sound insulation mesh cloth is dried, the stacked mesh cloth is sequentially arranged through the first crack 110, the second crack 120 and the third crack 130, and then the drying can be completed. It should be noted that the rate of mesh fabric delivery from each nip can be adjusted according to the specific drying rate; or the mesh fabric may be passed through the drying nip of the roller dryer 10 several times, for example: 2 times, 3 times, etc.
The concrete structure of the prepared energy-saving sound-insulation grid cloth is as follows: the first grid layer and the third grid layer are respectively overlapped and bonded on the two sides of the second grid layer, and adhesive is filled in meshes of the first grid layer, the second grid layer and the third grid layer.
The energy-saving sound-insulating mesh fabric and the preparation method thereof according to the present invention will be described in further detail with reference to the following examples.
Example 1
And (3) adhesive agent: 100 parts by weight of plastic, 10 parts by weight of stabilizer and 10 parts by weight of perlite powder (particle size of 700 mesh) were mixed.
The first grid layer, the second grid layer and the third grid layer are woven by basalt fibers and glass fibers in a ratio of 1:1, meshes of the first grid layer and the third grid layer are triangular, and meshes of the second grid layer are quadrilateral. And (3) coating adhesives on both sides of the second grid layer, respectively attaching the first grid layer and the third grid layer to both sides of the second grid layer coated with the adhesives, sequentially passing through the first crack 110, the second crack 120 and the third crack 130 of the roller dryer 10, and drying at 50 ℃ to obtain the energy-saving and sound-insulating grid cloth.
Example 2
And (3) adhesive agent: 120 parts by weight of plastic, 30 parts by weight of stabilizer and 20 parts by weight of perlite powder (particle size 800 mesh) were mixed.
The first grid layer, the second grid layer and the third grid layer are woven by basalt fibers and glass fibers in a ratio of 1:2, meshes of the first grid layer and the third grid layer are triangular, and meshes of the second grid layer are hexagonal. And (3) coating adhesives on both sides of the second grid layer, respectively attaching the first grid layer and the third grid layer to both sides of the second grid layer coated with the adhesives, sequentially passing through the first crack 110, the second crack 120 and the third crack 130 of the roller dryer 10, and drying at 60 ℃ to obtain the energy-saving and sound-insulating grid cloth.
Example 3
And (3) adhesive agent: 110 parts by weight of plastic, 20 parts by weight of stabilizer and 15 parts by weight of perlite powder (particle size 750 mesh) were mixed.
The first grid layer, the second grid layer and the third grid layer are woven by basalt fibers and glass fibers in a ratio of 1:3, meshes of the first grid layer and the third grid layer are triangular, and meshes of the second grid layer are quadrilateral. And (3) coating adhesives on both sides of the second grid layer, respectively attaching the first grid layer and the third grid layer to both sides of the second grid layer coated with the adhesives, sequentially passing through the first crack 110, the second crack 120 and the third crack 130 of the roller dryer 10, and drying at 55 ℃ to obtain the energy-saving and sound-insulating grid cloth.
Example 4
And (3) adhesive agent: 105 parts by weight of plastic, 15 parts by weight of stabilizer and 18 parts by weight of perlite powder (particle size 720 mesh) were mixed.
The first grid layer and the third grid layer are woven by basalt fibers and glass fibers in a ratio of 1:1, the second grid layer is woven by glass fibers, meshes of the first grid layer and the third grid layer are triangular, and meshes of the second grid layer are quadrilateral. And (3) coating adhesives on both sides of the second grid layer, respectively attaching the first grid layer and the third grid layer to both sides of the second grid layer coated with the adhesives, sequentially passing through the first crack 110, the second crack 120 and the third crack 130 of the roller dryer 10, and drying at 52 ℃ to obtain the energy-saving and sound-insulating grid cloth.
Example 5
And (3) adhesive agent: 112 parts by weight of plastic, 12 parts by weight of stabilizer and 17 parts by weight of perlite powder (particle size 780 mesh) were mixed.
The first grid layer and the third grid layer are woven by basalt fibers and glass fibers in a ratio of 1:2, the second grid layer is woven by the basalt fibers, meshes of the first grid layer and meshes of the third grid layer are triangular, and meshes of the second grid layer are hexagonal. And (3) coating adhesives on both sides of the second grid layer, respectively attaching the first grid layer and the third grid layer to both sides of the second grid layer coated with the adhesives, sequentially passing through the first crack 110, the second crack 120 and the third crack 130 of the roller dryer 10, and drying at 56 ℃ to obtain the energy-saving and sound-insulating grid cloth.
Example 6
And (3) adhesive agent: 116 parts by weight of plastic, 25 parts by weight of stabilizer and 12 parts by weight of perlite powder (particle size of 720 mesh) were mixed.
The first grid layer, the second grid layer and the third grid layer are woven by basalt fibers and glass fibers in a ratio of 1:2, meshes of the first grid layer and the third grid layer are triangular, and meshes of the second grid layer are quadrilateral. And (3) coating adhesives on both sides of the second grid layer, respectively attaching the first grid layer and the third grid layer to both sides of the second grid layer coated with the adhesives, sequentially passing through the first crack 110, the second crack 120 and the third crack 130 of the roller dryer 10, and drying at 54 ℃ to obtain the energy-saving and sound-insulating grid cloth.
Example 7
And (3) adhesive agent: 108 parts by weight of plastic, 21 parts by weight of stabilizer and 12 parts by weight of perlite powder (particle size 770 mesh) were mixed.
The first grid layer and the third grid layer are woven by basalt fibers and glass fibers in a ratio of 1:3, the second grid layer is woven by basalt fibers and glass fibers in a ratio of 1:1, meshes of the first grid layer and the third grid layer are triangular, and meshes of the second grid layer are hexagonal. And (3) coating adhesives on both sides of the second grid layer, respectively attaching the first grid layer and the third grid layer to both sides of the second grid layer coated with the adhesives, sequentially passing through the first crack 110, the second crack 120 and the third crack 130 of the roller dryer 10, and drying at 56 ℃ to obtain the energy-saving and sound-insulating grid cloth.
The energy-saving soundproof mesh fabrics of examples 1 to 7 and the commercially available mesh fabric (comparative example) were subjected to the test of the soundproof effect. In detail, the sound insulation effect of each set of the mesh cloth can be simply detected according to the following method: and respectively wrapping the decibel detectors by using single-layer grid cloth, emitting noise with the same decibel on the outer layer of the grid cloth, and recording decibel values detected by the detectors respectively. The results are shown in Table 1.
TABLE 1 noise decibels measured after each set of grid cloth is wrapped by decibel meter
Figure BDA0001396165140000091
Figure BDA0001396165140000101
As can be seen from the results in table 1, the energy-saving soundproof mesh fabric of the present invention can significantly block a certain amount of noise, and the soundproof effect thereof is significantly due to the commercially available mesh fabric.
In summary, the energy-saving sound insulation mesh fabric and the preparation method thereof of the embodiment of the invention have the beneficial effects that: the sound insulation mesh cloth has a good sound insulation effect, can effectively reduce indoor noise pollution, and provides a more comfortable and quiet living and working environment for a user; the sound insulation mesh fabric is low in cost, convenient to manufacture and convenient to use; the preparation method can rapidly produce the sound insulation mesh cloth, is simple to operate, saves labor and time, and can well save material resources and labor cost; the preparation method can effectively improve the sound insulation capability of the prepared mesh cloth.
The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims (4)

1. The preparation method of the energy-saving sound-insulation mesh cloth is characterized by comprising the steps of weaving a first mesh layer, weaving a second mesh layer and weaving a third mesh layer;
the first grid layer, the second grid layer and the third grid layer are sequentially overlapped, and meshes of the first grid layer are triangular; meshes of the third mesh layer are triangular; meshes of the second grid layer are quadrilateral or hexagonal;
coating an adhesive on the surface of the first grid layer to form a first adhesive layer; coating an adhesive on the surface of the third grid layer to form a second adhesive layer;
attaching the first sticky layer to one side of the second grid layer, attaching the second sticky layer to the other side of the second grid layer, and baking;
weaving the first grid layer comprises alternately weaving basalt fibers and glass fibers, wherein the dosage ratio of the basalt fibers to the glass fibers for weaving the first grid layer is 1: 1-3;
weaving the third grid layer comprises alternately weaving basalt fibers and glass fibers, wherein the dosage ratio of the basalt fibers to the glass fibers for weaving the third grid layer is 1: 1-3;
the adhesive comprises plastic, a stabilizer and perlite powder.
2. The preparation method of the energy-saving sound insulation mesh fabric as claimed in claim 1, wherein the adhesive comprises the following components in parts by weight: 100-120 parts of the plastic, 10-30 parts of the stabilizer and 10-20 parts of the perlite powder.
3. The method for preparing energy-saving soundproof mesh fabric according to claim 1, wherein the baking is performed in a roll dryer, the roll dryer includes a first guide roller, a second guide roller, a first drying roller and a second drying roller, axes of the first guide roller, the second guide roller, the first drying roller and the second drying roller are parallel, the first drying roller and the second drying roller are sandwiched between the first guide roller and the second guide roller, a first nip is formed between the first guide roller and the first drying roller, a second nip is formed between the first drying roller and the second drying roller, and a third nip is formed between the second drying roller and the second guide roller.
4. The method for preparing the energy-saving sound insulation mesh fabric according to claim 3, wherein the baking is performed in the following manner: and after the first grid layer and the second grid layer are respectively superposed on two sides of the second grid layer, sequentially passing through the first crack, the second crack and the third crack of the roller type dryer.
CN201710782062.6A 2017-09-01 2017-09-01 Energy-saving sound-insulation grid cloth and preparation method thereof Active CN107571563B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710782062.6A CN107571563B (en) 2017-09-01 2017-09-01 Energy-saving sound-insulation grid cloth and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710782062.6A CN107571563B (en) 2017-09-01 2017-09-01 Energy-saving sound-insulation grid cloth and preparation method thereof

Publications (2)

Publication Number Publication Date
CN107571563A CN107571563A (en) 2018-01-12
CN107571563B true CN107571563B (en) 2020-05-12

Family

ID=61030187

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710782062.6A Active CN107571563B (en) 2017-09-01 2017-09-01 Energy-saving sound-insulation grid cloth and preparation method thereof

Country Status (1)

Country Link
CN (1) CN107571563B (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2189528Y (en) * 1994-03-28 1995-02-15 赵清华 High-strength, light and fire-retardant composite plate
CN103787626B (en) * 2012-10-31 2017-05-31 深圳市爱思宝科技发展有限公司 Sound insulation binding agent
CN203846718U (en) * 2014-05-13 2014-09-24 景泰县金龙化工建材有限公司 Combined-type grid rib layer product with surface protective paper
CN203994927U (en) * 2014-08-06 2014-12-10 浙江汇锋新材料有限公司 A kind of photomask structure
CN104875430B (en) * 2015-04-30 2017-01-04 北京空间飞行器总体设计部 A kind of variable orifice footpath micropore honeycomb sandwich construction plate
CN105220303A (en) * 2015-08-26 2016-01-06 四川航天五源复合材料有限公司 A kind of continuous basalt fiber cloth
CN105839262A (en) * 2016-04-15 2016-08-10 安徽特邦新型建材有限责任公司 Mesh fabric production technology

Also Published As

Publication number Publication date
CN107571563A (en) 2018-01-12

Similar Documents

Publication Publication Date Title
US20230212852A1 (en) Shear panel building material
KR102150734B1 (en) Gypsum board suitable for wet or humid areas
US20200240143A1 (en) Gypsum panels, systems, and methods
US8440296B2 (en) Shear panel building material
CA2578161C (en) New gypsum board and systems comprising it
US9067383B2 (en) Flexible and rollable cementitious membrane and method of manufacturing it
US11253889B2 (en) Gypsum panels and mats therefor with wetting agent to enhance gypsum penetration
KR20070094595A (en) Steel plate frame for constructing clay house and constrution method using the same
US20220212996A1 (en) Gypsum panels, systems, and methods
CN108571162A (en) A kind of compound heat preservation die plate used for building exterior wall and its construction method
CA3014729C (en) Gypsum panels, systems, and methods
CN107571563B (en) Energy-saving sound-insulation grid cloth and preparation method thereof
KR101703881B1 (en) Manufacturing Method of Insulation Panel with excellent Solidity and Water Resistance and Insulation Panel made thereby
US20230124489A1 (en) Gypsum panels, systems, and methods
CN1807789A (en) Thermal insulation system structure for mineral wool coated building
US20230295041A1 (en) Fire resistant gypsum panels, and methods
US11136757B2 (en) Gypsum panels, systems, and methods
CN109944347A (en) A kind of external wall construction of MCM facing
RU2344937C1 (en) Method of manufacturing lightweight sandwich-type plasterfoampolymeric composite material and products thereof (versions)
CN205918024U (en) Gypsum -based compound incubation coating
JP2022160726A (en) Laminate and coated structure
CN109610659A (en) A kind of composite material blanket for building exterior wall heat preserving
TWM621031U (en) Floor structure
TR201811389A2 (en) INSULATED WALL PANEL
JP2007076145A (en) Heat insulating material

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
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20190328

Address after: 402260 Rentuo Community, Jiangjin District, Chongqing, Minhe Resident Community

Applicant after: Zhou Hao

Address before: No. 2 Jinfeng Ring Road, Caojie Street, Hechuan District, Chongqing City, 401000

Applicant before: HECHUAN BRANCH, CHONGQING KAMEILUN TECHNOLOGY CO., LTD.

TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20200417

Address after: 241200 No.1 Houwang Road, Suncun Economic Development Zone, Fanchang County, Wuhu City, Anhui Province

Applicant after: WUHU LITONG NEW MATERIAL Co.,Ltd.

Address before: 402260 Rentuo Community, Jiangjin District, Chongqing, Minhe Resident Community

Applicant before: Zhou Hao

GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 241200 No.1 Houwang Road, Suncun Economic Development Zone, Fanchang County, Wuhu City, Anhui Province

Patentee after: Anhui langlitong new material application Co.,Ltd.

Address before: 241200 No.1 Houwang Road, Suncun Economic Development Zone, Fanchang County, Wuhu City, Anhui Province

Patentee before: WUHU LITONG NEW MATERIAL Co.,Ltd.