CN109677034A - 一种高效的消音降噪荧光墙纸 - Google Patents

一种高效的消音降噪荧光墙纸 Download PDF

Info

Publication number
CN109677034A
CN109677034A CN201710974047.1A CN201710974047A CN109677034A CN 109677034 A CN109677034 A CN 109677034A CN 201710974047 A CN201710974047 A CN 201710974047A CN 109677034 A CN109677034 A CN 109677034A
Authority
CN
China
Prior art keywords
layer
noise
deadening
silencing cotton
efficient sound
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
Application number
CN201710974047.1A
Other languages
English (en)
Inventor
李迎莹
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.)
Shanghai Rui He Industrial Co Ltd
Original Assignee
Shanghai Rui He Industrial 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 Shanghai Rui He Industrial Co Ltd filed Critical Shanghai Rui He Industrial Co Ltd
Priority to CN201710974047.1A priority Critical patent/CN109677034A/zh
Publication of CN109677034A publication Critical patent/CN109677034A/zh
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/082Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising vinyl resins; comprising acrylic resins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/092Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising epoxy resins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/095Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyurethanes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/098Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/20Layered products comprising a layer of metal comprising aluminium or copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/30Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/38Layered products comprising a layer of synthetic resin comprising epoxy resins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/40Layered products comprising a layer of synthetic resin comprising polyurethanes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/42Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10Inorganic fibres
    • B32B2262/106Carbon fibres, e.g. graphite fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00Composition of foam
    • B32B2266/02Organic
    • B32B2266/0214Materials belonging to B32B27/00
    • B32B2266/025Polyolefin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/30Properties of the layers or laminate having particular thermal properties
    • B32B2307/306Resistant to heat
    • B32B2307/3065Flame resistant or retardant, fire resistant or retardant

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

本发明公开了一种高效的消音降噪荧光墙纸,所述高效的消音降噪荧光墙纸由内而外依次由基层、强化层、第一铝箔层,第一消音棉层、第二消音棉层、第二铝箔层、高硬度防护层、装饰层、胶面层、沙粒层、空气净化层、荧光层、防火透光膜层和耐磨层组成,所述第一消音棉层与第二消音棉层之间设有相互交错的消音丝网。本发明大大提高了墙纸的消音效果,并且还具备降噪荧光效果。

Description

一种高效的消音降噪荧光墙纸
技术领域
本发明涉及一种墙纸,具体涉及一种高效的消音降噪荧光墙纸。
背景技术
墙纸也称为壁纸,其是一种装饰材料,其广泛应用于办公室、住宅、酒店、宾馆等。
现有的墙纸的消音效果都比较差,并且不具备降噪荧光效果。
发明内容
本发明为了解决上述问题,从而提供一种高效的消音降噪荧光墙纸。
为达到上述目的,本发明的技术方案如下:
一种高效的消音降噪荧光墙纸,所述高效的消音降噪荧光墙纸由内而外依次由基层、强化层、第一铝箔层,第一消音棉层、第二消音棉层、第二铝箔层、高硬度防护层、装饰层、胶面层、沙粒层、空气净化层、荧光层、防火透光膜层和耐磨层组成,所述第一消音棉层与第二消音棉层之间设有相互交错的消音丝网。
在本发明的一个优选实施例中,所述基层由xpe发泡材料制成。
在本发明的一个优选实施例中,所述强化层由碳纤维布制成。
在本发明的一个优选实施例中,所述高硬度防护层由松香酚醛树脂、改性聚氨酯、聚氯乙烯树脂、松香树脂、环氧树脂、氢氧化铝、硝化棉、云母粉、氯化石蜡、铁酸钙、改性助剂、六甲基纤维素、柠檬酸和固化剂制成。
本发明的有益效果是:
本发明大大提高了墙纸的消音效果,并且还具备降噪荧光效果。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本发明的结构示意图。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解,下面结合具体图示,进一步阐述本发明。
参见图1,本发明提供的高效的消音降噪荧光墙纸,其由内而外依次由基层100、强化层200、第一铝箔层300,第一消音棉层400、第二消音棉层500、第二铝箔层600、高硬度防护层700、装饰层800、胶面层910、沙粒层920、空气净化层930、荧光层940、防火透光膜层950和耐磨层960组成。
基层100,其由xpe发泡材料制成,这样便于粘接和不易损坏。
强化层200,其由碳纤维布制成,其是用于提高基层100的强度,使得基层100不易变形,并且还不影响墙纸的重量。
第一铝箔层300和第二铝箔层600上分别设有若干个吸音孔,这样可大大提高本申请的消音效果。
在第一铝箔层300和第二铝箔层600之间设有第一消音棉层400和第二消音棉层500,第一消音棉层400和第二消音棉层500用于进一步提高消音效果,通过第二铝箔层600进入第一铝箔层300和第二铝箔层600的声音首先会经过第一消音棉层400和第二消音棉层500进行消音,消音后再经过第一铝箔层300和第二铝箔层600上的吸音孔进行再次消音,这样可大大提高本申请的消音效果。
另外,在第一消音棉层400与第二消音棉层500之间设有相互交错的消音丝网,在经过第一消音棉层400与第二消音棉层500配合消音时,还会通过第一消音棉层400与第二消音棉层500之间设有相互交错的消音丝网进行循环消音,这样使得本申请的消音效果达到最好。
高硬度防护层700,其是用于提高本申请的强度和防火性能,使得本申请不易变形。
高硬度防护层700由松香酚醛树脂、改性聚氨酯、聚氯乙烯树脂、松香树脂、环氧树脂、氢氧化铝、硝化棉、云母粉、氯化石蜡、铁酸钙、改性助剂、六甲基纤维素、柠檬酸和固化剂制成,这样可大大提高本申请的强度和防火性能。
装饰层800,其为本申请的外层,在其上面可设有图案层。
空气净化层930通过胶面层910和沙粒层920设置在装饰层800外表面,并且沙粒层920可提高空气净化层930与装饰层800之间的强度,空气净化层930是用于净化装饰层800和胶面层910中的危害气体,空气净化层930具体由危害气体净化效果好的材料支撑,如海藻泥。
荧光层940,其上面设有荧光粉,其是用于使得本申请具备夜光效果,提高美观度。
防火透光膜层950,其是用于保护荧光层940,具备防火性能,并且其还具有高透光性,这样可提高荧光层940的亮度。
耐磨层960,其是用于提高本申请的耐磨性能,使得本申请不易磨损。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (4)

1.一种高效的消音降噪荧光墙纸,其特征在于,所述高效的消音降噪荧光墙纸由内而外依次由基层、强化层、第一铝箔层,第一消音棉层、第二消音棉层、第二铝箔层、高硬度防护层、装饰层、胶面层、沙粒层、空气净化层、荧光层、防火透光膜层和耐磨层组成,所述第一消音棉层与第二消音棉层之间设有相互交错的消音丝网。
2.根据权利要求1所述的一种高效的消音降噪荧光墙纸,其特征在于,所述基层由xpe发泡材料制成。
3.根据权利要求1所述的一种高效的消音降噪荧光墙纸,其特征在于,所述强化层由碳纤维布制成。
4.根据权利要求1所述的一种高效的消音降噪荧光墙纸,其特征在于,所述高硬度防护层由松香酚醛树脂、改性聚氨酯、聚氯乙烯树脂、松香树脂、环氧树脂、氢氧化铝、硝化棉、云母粉、氯化石蜡、铁酸钙、改性助剂、六甲基纤维素、柠檬酸和固化剂制成。
CN201710974047.1A 2017-10-19 2017-10-19 一种高效的消音降噪荧光墙纸 Pending CN109677034A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710974047.1A CN109677034A (zh) 2017-10-19 2017-10-19 一种高效的消音降噪荧光墙纸

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710974047.1A CN109677034A (zh) 2017-10-19 2017-10-19 一种高效的消音降噪荧光墙纸

Publications (1)

Publication Number Publication Date
CN109677034A true CN109677034A (zh) 2019-04-26

Family

ID=66183452

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710974047.1A Pending CN109677034A (zh) 2017-10-19 2017-10-19 一种高效的消音降噪荧光墙纸

Country Status (1)

Country Link
CN (1) CN109677034A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111395046A (zh) * 2020-03-25 2020-07-10 上海知贤装饰设计有限公司 一种环保防火墙纸、环保胶及防火胶
DE102023201780A1 (de) 2023-02-27 2024-08-29 Volkswagen Aktiengesellschaft Nachweis einer Antiknarzmittelbehandlung von Schaumstoffelementen mit einem fluoreszierenden Antiknarzmittel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111395046A (zh) * 2020-03-25 2020-07-10 上海知贤装饰设计有限公司 一种环保防火墙纸、环保胶及防火胶
DE102023201780A1 (de) 2023-02-27 2024-08-29 Volkswagen Aktiengesellschaft Nachweis einer Antiknarzmittelbehandlung von Schaumstoffelementen mit einem fluoreszierenden Antiknarzmittel

Similar Documents

Publication Publication Date Title
CN203097179U (zh) 一种覆膜复合矿棉板
CN109677034A (zh) 一种高效的消音降噪荧光墙纸
CN104594130A (zh) 一种净化耐磨防火荧光植绒墙纸
CN201121391Y (zh) 珍珠岩复合吸音装饰板
CN109677033A (zh) 一种防火降噪荧光保温墙纸
CN206070930U (zh) 一种建筑装饰板材
CN205875453U (zh) 一种具有可见光二氧化钛的建筑墙体
CN202847017U (zh) 陶瓷纤维布
CN207484722U (zh) 一种再生聚酯海岛纤维发光复合吸音板
CN109677077A (zh) 一种防火保温墙纸
CN110373948A (zh) 一种荧光隔音防水墙纸
CN204492051U (zh) 适用于黑暗环境的内墙涂层结构
CN208830630U (zh) 一种多功能矿棉板
CN203651655U (zh) 轨道车辆内饰复合板
CN206070932U (zh) 一种防火吸音板
CN203200602U (zh) 一种新型壁纸
CN202507617U (zh) 一种防火建材装饰板
CN110373949A (zh) 一种防火隔音墙纸
CN110370751A (zh) 一种防水墙纸
CN103507315A (zh) 一种多功能吸音面料
CN204435584U (zh) 一种复合吸音板
CN221167245U (zh) 一种环保防水纸
CN206070914U (zh) 一种节能环保降噪壁纸
CN202091857U (zh) 一种led点光源
CN204983486U (zh) 天花板

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20190426

WD01 Invention patent application deemed withdrawn after publication