CN203174419U - High-strength and high-flexibility collagen fiber composite imitated leather - Google Patents
High-strength and high-flexibility collagen fiber composite imitated leather Download PDFInfo
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- CN203174419U CN203174419U CN 201320140647 CN201320140647U CN203174419U CN 203174419 U CN203174419 U CN 203174419U CN 201320140647 CN201320140647 CN 201320140647 CN 201320140647 U CN201320140647 U CN 201320140647U CN 203174419 U CN203174419 U CN 203174419U
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Abstract
The utility model relates to high-strength and high-flexibility collagen fiber composite imitated leather. The high-strength and high-flexibility collagen fiber composite imitated leather is sequentially provided with a regenerated leather basic cloth layer formed by collagen fibers, a first bonding layer, at least one elastic layer, a second bonding layer, a framework layer and a resin surface layer from bottom to top, wherein the elastic layer only comprises a non-woven fabric elastic layer with a fiber net structure or further comprises a woven fabric or knitted fabric elastic layer; and the framework layer is a damask framework layer with a twill structure or a plain cloth framework layer with a plain structure. The composite imitated leather disclosed by the utility model has the characteristics of high strength, high flexibility, high elasticity and high imitation property, and can be used as leather products in high-grade furniture including sofa, tables, chairs and the like, which have demanding requirements on the aspects of the strength, the flexibility, the imitation property and the like.
Description
Technical field
The utility model relates to nonwoven material and synthetic leather field, be specifically related to the compound emulation skin of the pliable and tough collagenous fibres of a kind of high-strength height, it can directly be used for being produced on the leathercraft in the high-grade furniture such as the harsh sofa of intensity, pliability and the requirement of emulation aspect, desk, chair.
Background technology
At present, the sofa leather material on the market mainly comprises artificial leather and corium.The artificial leather low price is easily arranged, but poor as sofa material gas permeability, and comfort level is not as good as corium, and material therefor is non-renewable, be unfavorable for the protection of resource, and the feature of environmental protection is poor.Corium is the embodiment of high-quality life, the fine and smooth high resilience of its feel, and good permeability, but expensive, and need regular nursing maintenance.Compare with corium, a kind of leftover pieces with corium are that the regenerated bark price that obtains of raw material manufacturing is more cheap, have the physical property that approaches with corium, and environmental protection; Its production method can adopt the production technology described in CN102660814A and the CN102660844A Chinese patent; This regenerated bark is not owing to have the epidermis outward appearance that natural corium has, need more with thin artificial leather layer carry out compound could be as the sofa material, as a kind of collagen fiber reducing leather described in the CN201785643 U Chinese patent.
For the intensity that guarantees collagen fiber reducing leather meets it as the required intensity index of leathercraft in the high-grade furniture such as sofa, desk, chair, often need between its contained regenerated bark and artificial leather layer, increase one deck casing play, as superfine fibre cloth, plain, drillipg, be 201220595549.6,201220595292.4 and 201220596486.6 Chinese patents about compound emulation skin as the application number of applying for before my department.For example, the compound emulation skin of describing in 201220596486.6 Chinese patents of a kind of collagenous fibres drillipg, it from bottom to top is provided with regenerated bark base cloth layer, the tack coat that collagenous fibres form, drillipg casing play and the curing resin layer with twill lines successively; It can directly be used for being manufactured with curved surface, shape is complicated needs all that with all directions high strength is arranged and have leathercraft in the high-grade furniture such as sofa, desk, chair of good appearance.But, in the prior art, though because the pliability of regenerated bark self is very approaching with corium, still slightly inferior on the performance; Compound to improve its intensity owing to needing with drillipg or plain etc. before its use in addition, the feel of the compound emulation skin of gained and pliability can be further impaired.
Shortcoming at existing compound emulation skin pliability difference, be necessary to develop the compound emulation skin of the pliable and tough collagenous fibres of a kind of high-strength height, to be used as the leathercraft that aspect intensity, pliability and emulation, requires in the high-grade furniture such as harsh sofa, desk, chair.
Summary of the invention
The utility model technical issues that need to address are to provide the pliable and tough collagenous fibres of a kind of high-strength height compound emulation skin, to be used as the leathercraft that requires in the high-grade furniture such as harsh sofa, desk, chair aspect intensity, pliability and emulation.
The utility model technical issues that need to address are achieved through the following technical solutions:
The compound emulation skin of collagenous fibres that a kind of high-strength height is pliable and tough, it from bottom to top is provided with regenerated bark base cloth layer that collagenous fibres form, first tack coat, one deck elastic layer, second tack coat, casing play and resin epidermal area at least successively.By between regenerated bark base cloth layer and resin epidermal area, being provided with one deck elastic layer and casing play, increased intensity and the pliability of compound emulation skin, and then make its in emulation more near natural corium.
Optimized technical scheme can be: described elastic layer comprises the nonwoven fabric elastic layer with fiber net structure.Nonwoven fabric is cheap as the advantage of elastic layer, elasticity and pliability are good.
Further optimized technical scheme can be: described elastic layer also comprises the woven cloth with the vertical pilotaxitic texture of longitude and latitude or has the knitted cloth elastic layer of the crooked lopping of yarn and mutual string nested structure.
Further optimized technical scheme can be: described nonwoven fabric elastic layer loop bonding or be bonded in the upper surface of described woven cloth or knitted cloth elastic layer by the 3rd tack coat.In order to reach sufficient elasticity and pliability, the nonwoven fabric elastic layer need have certain thickness, and under the excessive situation of thickness, makes nonwoven fabric elastic layer and compound emulation skin that irreversible transformation takes place when pressurized easily.Because pining down each other between the yarn that the vertical pilotaxitic texture of longitude and latitude in the woven cloth enhancement layer or the yarn string nested structure in the knitted cloth enhancement layer can be realized enhancement layer, by being bonded on woven cloth or the knitted cloth elastic layer with the loop bonding of nonwoven fabric elastic layer or by the 3rd tack coat, can overcome nonwoven fabric elastic layer and compound emulation skin to a certain extent irreversible transformation takes place when pressurized, can improve the intensity of compound emulation skin simultaneously.
Optimized technical scheme can be: described casing play is the plain casing play that has the drillipg casing play of twill structure or have plain weave structure.Drillipg and plain braiding are tight, and the intertwined point is many, can guarantee the high strength of compound emulation skin as casing play.
Optimized technical scheme can be: described first tack coat and/or second tack coat are individual layer or double-decker, constitute for adhesive surface or by bonding point.
Optimized technical scheme can be: the lower surface of described regenerated bark base cloth layer has been provided with batt.Playing batt is to handle by plucking to form fluffing, and it can make compound emulation leatherware that abundant " voluptuousness " arranged.
Optimized technical scheme can be: the upper surface of described resin epidermal area is provided with dermatoglyph and/or printed layers.Arranging of dermatoglyph on the resin epidermal area and/or printed layers can improve aesthetics.
Optimized technical scheme can be: be provided with one deck resin internal layer at least between described resin epidermal area and the described casing play.The setting of resin internal layer can further improve the surface elasticity of compound emulation skin.
Optimized technical scheme can be: the thickness of described regenerated bark base cloth layer is 0.1 ~ 2mm, and the gross thickness of described elastic layer is 0.3 ~ 5mm, and the thickness of described casing play is 0.3-1.8 mm, and the thickness of described resin epidermal area is 0.05 ~ 0.1mm.
The beneficial effects of the utility model are: by be provided with one deck elastic layer and casing play between regenerated bark base cloth layer and resin epidermal area, especially adopt nonwoven fabric elastic layer and drillipg or plain casing play, increased intensity and the pliability of compound emulation skin; In the elastic layer, by with the loop bonding of nonwoven fabric elastic layer be bonded in woven cloth or the knitted cloth elastic layer on, can overcome the defective that irreversible transformation takes place for nonwoven fabric elastic layer and compound emulation skin to a certain extent when pressurized, also further improve the intensity of compound emulation skin simultaneously; By between described resin epidermal area and described casing play, being provided with one deck resin internal layer at least, improve the surface elasticity of compound emulation skin further.By above these three aspects, make compound emulation skin in intensity, pliability and emulation more near natural corium.And the setting of elastic layer also makes to be had under sufficient elasticity and the flexible prerequisite and has further reduced the consumption of regenerated bark base cloth layer having satisfied compound emulation leatherware, and then has reduced production cost.In addition, plucking is handled and is made compound emulation leatherware that abundant " voluptuousness " be arranged; The dermatoglyph and/or the printed layers that are arranged on the resin epidermal area make compound emulation leatherware that higher aesthetics be arranged.The pliable and tough compound emulation micromicro of collagenous fibres of this high-strength height is used as the leathercraft that requires in the high-grade furniture such as harsh sofa, desk, chair aspect intensity, pliability and emulation.
Description of drawings
Fig. 1 is the cross section structure schematic diagram of the utility model embodiment 1;
Fig. 2 is the cross section structure schematic diagram of the utility model embodiment 2;
Fig. 3 is the cross section structure schematic diagram of the utility model embodiment 3;
Fig. 4 is the cross section structure schematic diagram of the utility model embodiment 4;
Fig. 5 is the cross section structure schematic diagram of the utility model embodiment 5.
Among the figure: 1, regenerated bark base cloth layer; 2, first tack coat; 3, elastic layer; 4, second tack coat; 5, casing play; 6, the first resin internal layer; 7, the second resin internal layer; 8, resin epidermal area; 11, play batt; 21, first lower floor's bonding point; 22, the first upper strata bonding point; 31, nonwoven fabric elastic layer; 32, woven cloth or knitted cloth elastic layer; 33, the 3rd tack coat; 41, second lower floor's bonding point; 42, the second upper strata bonding point.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described further.Following examples only are used for the technical solution of the utility model more clearly is described, and can not limit protection domain of the present utility model with this.
The utility model is the compound emulation skins of the pliable and tough collagenous fibres of a kind of high-strength height, as shown in Figure 1, it from bottom to top is provided with regenerated bark base cloth layer 1, first tack coat 2, elastic layer 3, second tack coat 4, casing play 5 and resin epidermal area 8 that collagenous fibres are formed successively.
Wherein, the thickness of elastic layer 3 is 0.3 ~ 5mm, and it only comprises that one deck has the nonwoven fabric elastic layer 31 of fiber net structure.Nonwoven fabric is as the material of elastic layer 3, it is advantageous that cheaply, and elasticity and pliability are good.Require the tearing toughness of nonwoven fabric elastic layer 31 more than 3 pounds on the performance, TENSILE STRENGTH is more than 30 pounds, and peel strength is more than 5 pounds.
The thickness of regenerated bark base cloth layer 1 is 0.1 ~ 2mm, and its lower surface has been provided with batt 11.Playing batt is to handle by plucking to form fluffing, and it can make compound emulation leatherware that abundant " voluptuousness " arranged.
The thickness of casing play 5 is 0.3 ~ 1.8 mm, and it is the plain casing play that has the drillipg casing play of twill structure or have plain weave structure.Drillipg and plain braiding are tight, and the intertwined point is many, so it can guarantee the high strength of compound emulation skin as the material of casing play 5.
The thickness of resin epidermal area 8 is 0.05 ~ 0.1mm, and it directly applies the back oven dry by corresponding polyurethane fluid,matching and forms.The upper surface of resin epidermal area 8 is provided with dermatoglyph (not shown) and/or one deck ink printing layer (not shown) as thin as a wafer.Arranging of dermatoglyph and/or printed layers can improve aesthetics.
In addition, first tack coat 2 and/or second tack coat 4 also can be single layer structure, are the adhesive surface of individual layer, or are the bonding point of individual layer; Even also can be double-deck adhesive surface.
The utility model has increased intensity and the pliability of compound emulation skin by be provided with layer of non-woven fabric elastic layer 31 and casing play 5 between regenerated bark base cloth layer 1 and resin epidermal area 8, so make its in emulation more near natural corium.
Unique difference of present embodiment and embodiment 1 is: in the elastic layer 3, except nonwoven fabric elastic layer 31, elastic layer 3 comprises that also one deck has the woven cloth of the vertical pilotaxitic texture of longitude and latitude or has the also knitted cloth elastic layer 32 of mutual string nested structure of the crooked lopping of yarn, and 31 loop bondings of nonwoven fabric elastic layer are at the upper surface of woven cloth or knitted cloth elastic layer 32, as shown in Figure 2.Like this, the lower surface of woven cloth or knitted cloth elastic layer 32 has constituted the lower surface of elastic layer 3, and the upper surface of nonwoven fabric elastic layer 31 has constituted the upper surface of elastic layer 3.And other parts all the appropriate section with embodiment 1 is identical.Here, omission is to the description of same section.
In order to reach sufficient elasticity and pliability, the nonwoven fabric elastic layer need have certain thickness, and under the excessive situation of thickness, makes nonwoven fabric elastic layer and compound emulation skin that irreversible transformation takes place when pressurized easily.The utility model has been set up woven cloth or knitted cloth elastic layer 32 in elastic layer 3, and pass through 31 loop bondings of nonwoven fabric elastic layer on woven cloth or knitted cloth elastic layer 32, realize between yarn pining down each other by the vertical pilotaxitic texture of longitude and latitude in woven cloth or the knitted cloth elastic layer 32 or yarn string nested structure, can overcome nonwoven fabric elastic layer 31 and compound emulation skin to a certain extent irreversible transformation takes place when pressurized, can improve the intensity of compound emulation skin simultaneously.
Unique difference of present embodiment and embodiment 2 is: be provided with the first resin internal layer 6 between resin epidermal area 8 and the casing play 5, as shown in Figure 3.Oven dry forms the first resin internal layer 6 directly is coated in the upper surface of casing play 5 by the polyurethane fluid,matching after; Again that the polyurethane fluid,matching of corresponding resin epidermal area 8 is surperficial thereon with the scraper blade coating subsequently, the oven dry back forms resin epidermal area 8.And other parts all the appropriate section with embodiment 2 is identical.Here, omission is to the description of same section.
The setting of the first resin internal layer 6 can further improve the surface elasticity of compound emulation skin.
Unique difference of present embodiment and embodiment 1 is: in the elastic layer 3, except nonwoven fabric elastic layer 31, elastic layer 3 also comprises the woven cloth with the vertical pilotaxitic texture of longitude and latitude or has the knitted cloth elastic layer 32 of the crooked lopping of yarn and mutual string nested structure, and nonwoven fabric elastic layer 31 is bonded in the upper surface of woven cloth or knitted cloth elastic layer 32 by the 3rd tack coat 33; The 3rd tack coat 33 is the adhesive surface of individual layer individual layer.Like this, the lower surface of woven cloth or knitted cloth elastic layer 32 has constituted the lower surface of elastic layer 3, and the upper surface of nonwoven fabric elastic layer 31 has constituted the upper surface of elastic layer 3.And other parts all the appropriate section with embodiment 1 is identical.Here, omission is to the description of same section.
In addition, the 3rd tack coat 33 also can be the bonding point of individual layer; Even also can be double-decker, constitute for the adhesive surface of bilayer or by the bonding point of bilayer.
The utility model is bonded in nonwoven fabric elastic layer 31 on woven cloth or the knitted cloth elastic layer 32 by the 3rd tack coat 33, realize between yarn pining down each other by the vertical pilotaxitic texture of longitude and latitude in woven cloth or the knitted cloth elastic layer 32 or yarn string nested structure, can overcome nonwoven fabric elastic layer 31 and compound emulation skin to a certain extent irreversible transformation takes place when pressurized, can improve the intensity of compound emulation skin simultaneously.
Unique difference of present embodiment and embodiment 4 is: from bottom to top be provided with the first resin internal layer 6 and the second resin internal layer 7 between resin epidermal area 8 and the casing play 5 successively.Oven dry forms the first resin internal layer 6 directly is coated in the upper surface of casing play 5 by the polyurethane fluid,matching after; By adopting the release liners method, use the scraper blade coating on release liners the polyurethane fluid,matching of corresponding resin epidermal area 8, after drying, the cooling, be coated with the polyurethane fluid,matching that applies the corresponding second resin internal layer 7 again; The second resin internal layer 7 has certain caking property, utilizes laminating apparatus and the drying box just can be with casing play 5, the first resin internal layer 6 and the second resin internal layer 7 and resin epidermal area 8 secure bond.The setting of the first resin internal layer 6 and the second resin internal layer 7 can further improve the surface elasticity of compound emulation skin.And other parts all the appropriate section with embodiment 4 is identical.Here, omission is to the description of same section.
Above-mentioned each embodiment is to preferred embodiment of the present utility model.Should be pointed out that for those skilled in the art under the prerequisite that does not break away from the utility model know-why, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. compound emulation skin of collagenous fibres that high-strength height is pliable and tough is characterized in that: it from bottom to top is provided with regenerated bark base cloth layer that collagenous fibres form, first tack coat, one deck elastic layer, second tack coat, casing play and resin epidermal area at least successively.
2. the pliable and tough compound emulation skin of collagenous fibres of high-strength height as claimed in claim 1, it is characterized in that: described elastic layer comprises the nonwoven fabric elastic layer with fiber net structure.
3. the pliable and tough compound emulation skin of collagenous fibres of high-strength height as claimed in claim 2 is characterized in that: described elastic layer also comprises the woven cloth with the vertical pilotaxitic texture of longitude and latitude or has the crooked lopping of yarn and the knitted cloth elastic layer of string nested structure mutually.
4. the pliable and tough compound emulation skin of collagenous fibres of high-strength height as claimed in claim 3 is characterized in that: described nonwoven fabric elastic layer loop bonding or be bonded in the upper surface of described woven cloth or knitted cloth elastic layer by the 3rd tack coat.
5. the pliable and tough compound emulation skin of collagenous fibres of high-strength height as claimed in claim 1, it is characterized in that: described casing play is the plain casing play that has the drillipg casing play of twill structure or have plain weave structure.
6. the pliable and tough compound emulation skin of collagenous fibres of high-strength height as claimed in claim 1, it is characterized in that: described first tack coat and/or second tack coat are individual layer or double-decker, constitute for adhesive surface or by bonding point.
7. the pliable and tough compound emulation skin of collagenous fibres of high-strength height as claimed in claim 1, it is characterized in that: the lower surface of described regenerated bark base cloth layer has been provided with batt.
8. the pliable and tough compound emulation skin of collagenous fibres of high-strength height as claimed in claim 1, it is characterized in that: the upper surface of described resin epidermal area is provided with dermatoglyph and/or printed layers.
9. the pliable and tough compound emulation skin of collagenous fibres of high-strength height as claimed in claim 1 is characterized in that: be provided with one deck resin internal layer at least between described resin epidermal area and the described casing play.
10. according to the pliable and tough compound emulation skin of collagenous fibres of any described high-strength height of claim 1 to 8, it is characterized in that: the thickness of described regenerated bark base cloth layer is 0.1 ~ 2mm, the gross thickness of described elastic layer is 0.3 ~ 5mm, the thickness of described casing play is 0.3 ~ 1.8 mm, and the thickness of described resin epidermal area is 0.05 ~ 0.1mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320140647 CN203174419U (en) | 2013-03-25 | 2013-03-25 | High-strength and high-flexibility collagen fiber composite imitated leather |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320140647 CN203174419U (en) | 2013-03-25 | 2013-03-25 | High-strength and high-flexibility collagen fiber composite imitated leather |
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| CN203174419U true CN203174419U (en) | 2013-09-04 |
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| CN 201320140647 Expired - Lifetime CN203174419U (en) | 2013-03-25 | 2013-03-25 | High-strength and high-flexibility collagen fiber composite imitated leather |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106626639A (en) * | 2016-12-10 | 2017-05-10 | 袁正华 | Bio-robot skin and manufacturing method thereof |
| CN108407416A (en) * | 2018-04-23 | 2018-08-17 | 晟合新材料科技（嘉善）有限公司 | Composite blank, composite material and its production technology for power sunroof |
| CN109049927A (en) * | 2018-08-27 | 2018-12-21 | 晟合新材料科技（嘉善）有限公司 | A kind of high-elastic float glass process warp knit base fabric and its elastic artificial leather shell material |
| CN109594355A (en) * | 2018-11-30 | 2019-04-09 | 安徽安利材料科技股份有限公司 | A kind of high strength solventless polyurethane regenerated bark and preparation method thereof |
| WO2019174140A1 (en) * | 2018-03-16 | 2019-09-19 | 台湾科德宝宝翎不织布股份有限公司 | Composite material structure |
| CN111791557A (en) * | 2020-06-16 | 2020-10-20 | 清远市齐力合成革有限公司 | Horse oil skin-imitated transparent polyurethane synthetic leather |
| CN112680859A (en) * | 2020-12-11 | 2021-04-20 | 江苏恒力化纤股份有限公司 | Chair back conforming to natural physiological curvature of human spine and preparation method thereof |
| US11001679B2 (en) | 2016-02-15 | 2021-05-11 | Modern Meadow, Inc. | Biofabricated material containing collagen fibrils |
| US11214844B2 (en) | 2017-11-13 | 2022-01-04 | Modern Meadow, Inc. | Biofabricated leather articles having zonal properties |
| US11352497B2 (en) | 2019-01-17 | 2022-06-07 | Modern Meadow, Inc. | Layered collagen materials and methods of making the same |
| US11913166B2 (en) | 2015-09-21 | 2024-02-27 | Modern Meadow, Inc. | Fiber reinforced tissue composites |
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2013
- 2013-03-25 CN CN 201320140647 patent/CN203174419U/en not_active Expired - Lifetime
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| US11913166B2 (en) | 2015-09-21 | 2024-02-27 | Modern Meadow, Inc. | Fiber reinforced tissue composites |
| US11001679B2 (en) | 2016-02-15 | 2021-05-11 | Modern Meadow, Inc. | Biofabricated material containing collagen fibrils |
| US11542374B2 (en) | 2016-02-15 | 2023-01-03 | Modern Meadow, Inc. | Composite biofabricated material |
| US11530304B2 (en) | 2016-02-15 | 2022-12-20 | Modern Meadow, Inc. | Biofabricated material containing collagen fibrils |
| US11525042B2 (en) | 2016-02-15 | 2022-12-13 | Modern Meadow, Inc. | Composite biofabricated material |
| US11286354B2 (en) | 2016-02-15 | 2022-03-29 | Modern Meadow, Inc. | Method for making a biofabricated material containing collagen fibrils |
| CN106626639A (en) * | 2016-12-10 | 2017-05-10 | 袁正华 | Bio-robot skin and manufacturing method thereof |
| US11214844B2 (en) | 2017-11-13 | 2022-01-04 | Modern Meadow, Inc. | Biofabricated leather articles having zonal properties |
| WO2019174140A1 (en) * | 2018-03-16 | 2019-09-19 | 台湾科德宝宝翎不织布股份有限公司 | Composite material structure |
| CN108407416A (en) * | 2018-04-23 | 2018-08-17 | 晟合新材料科技（嘉善）有限公司 | Composite blank, composite material and its production technology for power sunroof |
| CN109049927A (en) * | 2018-08-27 | 2018-12-21 | 晟合新材料科技（嘉善）有限公司 | A kind of high-elastic float glass process warp knit base fabric and its elastic artificial leather shell material |
| CN109049927B (en) * | 2018-08-27 | 2023-09-26 | 晟合新材料科技(嘉兴)股份有限公司 | High-elastic float warp knitting base fabric and elastic imitation leather fabric thereof |
| CN109594355A (en) * | 2018-11-30 | 2019-04-09 | 安徽安利材料科技股份有限公司 | A kind of high strength solventless polyurethane regenerated bark and preparation method thereof |
| US11352497B2 (en) | 2019-01-17 | 2022-06-07 | Modern Meadow, Inc. | Layered collagen materials and methods of making the same |
| CN111791557A (en) * | 2020-06-16 | 2020-10-20 | 清远市齐力合成革有限公司 | Horse oil skin-imitated transparent polyurethane synthetic leather |
| CN112680859A (en) * | 2020-12-11 | 2021-04-20 | 江苏恒力化纤股份有限公司 | Chair back conforming to natural physiological curvature of human spine and preparation method thereof |
| CN112680859B (en) * | 2020-12-11 | 2022-03-18 | 江苏恒力化纤股份有限公司 | Chair back conforming to natural physiological curvature of human spine and preparation method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhu Xiaojun Inventor after: Zhu Xiaohua Inventor before: Zhu Xiaohua |
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| COR | Change of bibliographic data | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |