KR100326545B1 - Low noise copper foil and its manufacturing method - Google Patents
Low noise copper foil and its manufacturing method Download PDFInfo
- Publication number
- KR100326545B1 KR100326545B1 KR1019980032917A KR19980032917A KR100326545B1 KR 100326545 B1 KR100326545 B1 KR 100326545B1 KR 1019980032917 A KR1019980032917 A KR 1019980032917A KR 19980032917 A KR19980032917 A KR 19980032917A KR 100326545 B1 KR100326545 B1 KR 100326545B1
- Authority
- KR
- South Korea
- Prior art keywords
- copper foil
- coated
- noise
- polyurethane
- low noise
- Prior art date
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000011889 copper foil Substances 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000004814 polyurethane Substances 0.000 claims abstract description 16
- 229920002635 polyurethane Polymers 0.000 claims abstract description 16
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 15
- 239000002313 adhesive film Substances 0.000 claims abstract description 12
- 238000004049 embossing Methods 0.000 claims abstract description 10
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 abstract description 11
- 239000004800 polyvinyl chloride Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 4
- 239000011527 polyurethane coating Substances 0.000 abstract description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/06—Embossing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered 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
- B32B5/02—Layered 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
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered 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
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
- B32B2037/243—Coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/06—Coating on the layer surface on metal layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
본 발명은 장판이나 매트 등에 전자파를 차단하기 위해 설치되는 동박층을 사용할 때 소음이 발생하지 않도록 하는 저소음의 동박 제조방법에 관한 것이다.The present invention relates to a low-noise copper foil manufacturing method that does not generate noise when using a copper foil layer provided to block electromagnetic waves in a sheet or mat.
종래의 동박이 설치된 매트를 사용해보면 종이가 구겨지는 것과 같은 소음이 많이 나는 것을 들을 수가 있다. 이는 전자파를 차단하기 위해 깔아 놓은 동박이 종이두께 정도로 얇게 형성되어 있고, 또 탄성력을 보유하고 있어 사용자가 누워 체중이 가해진 상태에서 뒤척이거나, 요나 매트를 갤 때 동박이 펴지거나 접혀지면서 많은 소음이 발생하기 때문이다.If you use a mat with a conventional copper foil, you can hear a lot of noise, such as wrinkled paper. This is because the copper foil laid to block the electromagnetic waves is formed as thin as the paper thickness, and it has elasticity, so when the user lays down, the weight is stretched, or when the yona mat is laid, the copper foil is stretched or folded to generate a lot of noise. Because.
따라서 본 발명은 동박(10)의 표면에 무항변 폴리우레탄(Poly Vrethane)(11)을 코팅하고, PVC(Poly Vinyl Chloride)접착필름(13) 코팅을 한 부직포(12)에 접착제를 발라 약130∼150℃의 온도에서 상기 동박(10)과 엠보싱접착시켜 저소음의 동 박을 얻는다.Therefore, the present invention is coated with an anhydrous polyurethane (11) on the surface of the copper foil (10), and coated with an adhesive on the nonwoven fabric (12) coated with PVC (Poly Vinyl Chloride) adhesive film (13) about 130 Embossing adhesion with the said copper foil 10 at the temperature of -150 degreeC is carried out, and low noise copper foil is obtained.
이러한 저소음 동박 제조방법에 의해 제조된 동박은 동박에 무항변 폴리우레탄코팅을 하고, PVC접착필름이 코팅된 부직포와 무항변 폴리우레탄이 코팅된 동박 이 엠보싱되면서 접착되어 유연해짐에 따라 소음의 발생이 최소화되는 효과가 있다.The copper foil produced by the low noise copper foil manufacturing method is coated with an anhydrous polyurethane coating on the copper foil, and a non-woven fabric coated with a PVC adhesive film and an copper foil coated with an anhydrous polyurethane are bonded to each other while being embossed to generate noise. There is an effect that is minimized.
Description
본 발명은 장판이나 매트 등에 전자파를 차단하기 위해 설치되는 동박층을 사용할 때 소음이 발생하지 않도록 하는 저소음의 동박 및 그 제조방법에 관한 것 이다.The present invention relates to a low noise copper foil and a method of manufacturing the same so that noise is not generated when using a copper foil layer provided to block electromagnetic waves on a floor plate or a mat.
일반적으로, 전기용 매트, 요, 장판 등은 생산업체마다 다양한 구조 및 형태로 생산되고 있다.In general, electrical mats, urine, floor coverings, etc. are produced in various structures and forms for each manufacturer.
요즘은 소비자들은 건강에 대한 관심이 높아져 이러한 매트나 장판 및 요가 단순히 난방의 효율이나 외관에 관심을 두지 않고, 전자파를 차단할 수 있는지 또 는 얼마나 건강증진에 도움을 주는 재료를 사용했는지에 관심을 갖고 구입을 하기 때문에 전기장판, 전기요, 전기매트(장판, 요, 매트들을 이하, 매트라함) 등을 생산하는 업체들은 매트의 구조를 다층으로 형성하여 소비자의 욕구를 최대한 충족시킬 수 있는 방향으로 제품을 제조하고 있다.Nowadays, consumers are more interested in health and are interested in whether these mats, floorboards and yoga are not concerned with the efficiency or appearance of heating, but also with the ability to block electromagnetic waves or how health-promoting materials are used. As they make purchases, companies that produce electric blankets, electric mattresses, and electric mats (such as mats, mats, mats, etc.) are forming the mat's structure in a multi-layered manner, so as to satisfy the needs of consumers. Manufacture.
이와 같이 다층으로 출시되고 있는 종래의 전기매트에는 전자파를 차단하기 위해 수지 등의 재료에 동박을 부착시킨 수맥 차단용 동박접착 제품을 건축 자재 또는 매트 밑에 깔고, 그 위에 원적외선을 발산하는 황토나 맥반석과 같은 것들로 층을 이루거나 코팅을 한 구조의 것이 대부분이다.In the conventional electric mat, which is released in multiple layers, a copper foil adhesive product for blocking vein, which has copper foil attached to a material such as resin, in order to block electromagnetic waves, is laid under a building material or mat, and loess or elvan rock that emits far infrared rays thereon. Most of the structures are layered or coated with the same.
그렇지만 이러한 매트를 사용할 때 종이가 구겨지는 소음이 많이 나는 것을 느낄 수가 있다. 이는 전자파를 차단하기 위해 깔아놓은 동박이 종이 두께 정도로 얇게 형성되어 있고, 또 탄성력을 보유하고 있어 사용자가 누워 체중이 가해진 상 태에서 뒤척이거나, 요나 매트를 갤 때 동박이 펴지거나 접혀지면서 많은 소음이 발생하기 때문이다.However, when using these mats, you may notice a lot of paper crumpling. This is because the copper foil laid to block the electromagnetic waves is formed as thin as paper thickness and has elasticity so that when the user lays down and is overweight, the copper foil is stretched or folded when the yona mat is laid, it makes a lot of noise. Because it occurs.
수면에도 지장을 줄 정도의 문제점이 있음에도 불구하고 소음 문제가 개선되 지 않은 것은 동박을 제조할 때 전자파를 차단하는 데에만 치중을 하여 소음 제거 에는 무관심했기 때문이며, 사용자 또한 이러한 불편함을 인식하면서도 당연히 소 음이 발생할 수밖에 없는 것으로 생각하여 크게 불만을 토로하지 않고 있었기 때문이다.Even though there is a problem that disturbs sleep, the noise problem is not improved because it focuses solely on blocking electromagnetic waves when manufacturing copper foil and is indifferent to noise reduction. It was because they did not complain much because they thought that noise could only occur.
따라서 본 발명은 이와 같은 종래의 문제점을 해소하기 위해 안출된 것으로, 그 목적은 전자파를 차단하는 동박을 열처리한 후 녹방지를 위한 무항변 폴리우레 탄 코팅을 하고, 부직포의 한면에 PVC 접착 필름을 코팅한 상태에서 상기와 무항변의한 엠보싱접착이 이루어지도록 하여 소음을 최소화할 수 있도록 한 저소음의 동 박 및 그 제조방법을 제공하는 데 있다.Therefore, the present invention has been made in order to solve such a conventional problem, the object is to heat-treated copper foil to block the electromagnetic waves and then subjected to an anhydrous polyurethane coating for rust prevention, PVC adhesive film on one side of the nonwoven fabric It is to provide a low-noise copper foil and a method of manufacturing the same so as to minimize the noise by making the embossed adhesion invariant to the above in the coated state.
도 1은 본 발명에 따른 동박의 구조를 나타낸 단면도이다.1 is a cross-sectional view showing the structure of a copper foil according to the present invention.
*** 도면의 주요 부분에 대한 부호의 설명 ****** Explanation of symbols for the main parts of the drawing ***
10 - 동박 11 - 무항변 폴리우레탄10-Copper Foil 11-Unrestrained Polyurethane
12 - 부직포 13 - PVC 접착 필름12-nonwoven 13-PVC adhesive film
상기 목적을 달성하기 위한 본 발명의 저소음의 동박 및 그 제조방법은, 동 박의 탄력성으로 인해 접거나 펴지거나 구겨질 때 발생하는 소음을 최소화하기 위 하여 550°C 정도의 온도에서 180분 동안 열처리하여 탄성력을 없애 준 동박의 일측 표면에 무항변 폴리우레탄(Poly Vrethane)을 코팅하고, PVC(Poly Vinyl Chloride) 접착 필름을 코팅한 부직포에 가열 접착제를 발라 약130∼150℃의 온도로 상기 동 박층과 엠보싱접착시켜서 달성된다.Low noise copper foil of the present invention and its manufacturing method for achieving the above object, by heat treatment for 180 minutes at a temperature of about 550 ° C in order to minimize the noise generated when folded, folded or wrinkled due to the elasticity of the copper foil The surface of one side of the copper foil which removed the elastic force is coated with an anhydrous polyurethane (Poly Vrethane), and a heating adhesive is applied to a nonwoven fabric coated with a PVC (Poly Vinyl Chloride) adhesive film and the copper foil layer at a temperature of about 130 ~ 150 ℃ Achieved by embossing bonding.
이하, 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.
도 1은 본 발명의 동박구조를 나타낸 단면도이다.1 is a cross-sectional view showing the copper foil structure of the present invention.
본 발명의 저소음 동박은 매끈하고 얇은 동박(10)의 표면에 폴리우레탄(11) 이 엠보싱 코팅되고, 그 하부에 PVC 접착 필름(14)이 코팅된 부직포(12)가 동박 (10)과 엠보싱접착된 구조로 되어 있다.In the low noise copper foil of the present invention, the polyurethane 11 is embossed and coated on the surface of the smooth and thin copper foil 10, and the nonwoven fabric 12 coated with the PVC adhesive film 14 at the lower portion thereof is embossed with the copper foil 10. Structure.
이러한 저소음 동박은 제조할 때 먼저 열처리하여 탄력성을 최소화하면서 유연해 지도록 한 동박(10)의 표면에 무항변 폴리우레탄(11)을 코팅하여 동박의 표면에서 녹이 발생하는 것을 방지하도록 한다.The low noise copper foil is coated with an anhydrous polyurethane 11 on the surface of the copper foil 10 to be flexible while minimizing the elasticity by heat treatment first to manufacture to prevent rust from occurring on the surface of the copper foil.
이와 같이 동박(10)에 무항변 폴리우레탄(1)을 코팅하게 되면 동의 산화에 의한 변색 방지와 정전기 방지의 효과가 있으며, 인체에 무해한 수성으로 색의 변 화가 없고, 피막이 형성된 상태에서는 내충격 및 내열의 특성이 있게 되어 유연성및 강도가 높아진다.In this way, when the non-urethane polyurethane 1 is coated on the copper foil 10, there is an effect of preventing discoloration and antistatic by oxidation of copper, and there is no color change due to aqueous harmlessness to the human body. The characteristics of the flexibility and strength is increased.
즉, 정전기 방지의 효과, 변색의 방지 및 내충격 내열에 강해지는 상태를 무항변이라 하고, 폴리우레탄을 코팅하는 것에 의해 그와 같은 효과를 얻게 되므로 무항변 폴리우레탄(11)이라 칭하게 된다.That is, the state of the antistatic effect, the prevention of discoloration and the impact resistant heat resistance is referred to as a non-restraint, and the same effect is obtained by coating the polyurethane is referred to as an unrestrained polyurethane (11).
이어서 무항변 폴리우레탄(11)이 코팅된 동박(10)의 무항변 폴리우레탄(11) 이 코팅되지 않은 면에 부직포(12)를 접착한다.Subsequently, the nonwoven fabric 12 is adhered to a surface of the copper foil 10 coated with the non-veloured polyurethane 11 that is not coated with the non-veloured polyurethane 11.
상기의 부직포(12)는 접착되기 전에 한면에 PVC 접착 필름(13)을 코팅하며, 또 동박(10)에 부착시 PVC 접착 필름(13)이 코팅되지 않은 면에 가열 접착제를 바 른 후 상기 동박(10)의 무항변 폴리우레탄(11)이 코팅되지 않은 면을 접착력이 가 장 강하게 나타나는 온도인 약 130∼150℃의 온도에서 접착시킨다.The non-woven fabric 12 is coated with a PVC adhesive film 13 on one side before being bonded, and when applying the heating adhesive to the surface on which the PVC adhesive film 13 is not coated when attached to the copper foil 10, the copper foil The uncoated polyurethane (11) of (10) is bonded at a temperature of about 130 to 150 ° C., which is the temperature at which adhesion is most strong.
상기의 접착 공정은 부직포(12)와 동박(10)에 작은 엠보싱이 형성되는 중에 접착되도록 하는 엠보싱 접착 방법을 사용하게 된다.The above bonding process uses an embossing bonding method that allows the nonwoven fabric 12 and the copper foil 10 to be bonded while the small embossing is formed.
상기의 엠보싱 접착을 위하여는 작은 오목 부와 볼록 부가 전표면에 형성한 두 롤러 사이를 상기의 부직포(12)와 동박(10)이 통과하도록 하면서 가압 및 가열에 의해 완전한 접착이 이루어지도록 함으로써 부직포(12) 자체가 동박(10)의 유연성을 증진시켜 소음 발생을 억제하는 기능을 수행할 뿐만 아니라 부직포(12)를 부착할 때 동박(10)이 엠보싱접착됨에 따라 더욱 유연해져 소음이 억제된다.For the embossing adhesion, the nonwoven fabric 12 is formed by pressing and heating while allowing the nonwoven fabric 12 and the copper foil 10 to pass between the two rollers formed on the entire surface of the small concave portion and the convex portion. 12) itself increases the flexibility of the copper foil 10 to suppress the generation of noise as well as more flexible as the copper foil 10 is embossed when the nonwoven fabric 12 is attached, the noise is suppressed.
즉, 엠보싱은 크기가 작으면 작을수록 더욱더 유연해져 동의 탄력성이 줄고 접착 면적이 많아져 소음 발생이 더욱더 억제되므로 엠보싱을 미세하게 형성할 필요가 있게 된다.In other words, the smaller the size of the embossing is more flexible, the elasticity of the copper is reduced, the adhesion area is increased, the noise generation is further suppressed, it is necessary to form the embossing fine.
또한 동박(10)에 무항변 폴리우레탄(11)을 코팅하기전 동박의 탄력성을 최소 가 되도록 할 수 있는 온도인 550℃에서 180분 정도 열처리하면 더욱 더 유연한 동박(10)을 얻을 수 있다.In addition, the copper foil 10 can be obtained by further heat-treating the copper foil 10 by heat treatment at 550 ° C. for 180 minutes to minimize the elasticity of the copper foil.
이상에서 살펴본 바와 같이 본 발명은 동박에 무항변 폴리우레탄코팅을 하고, PVC접착필름이 코팅된 부직포와 동박을 접착할 때 엠보싱접착시킴에 따라 동박은 더욱더 유연해져 소음의 발생이 최소화되는 효과가 있다.As described above, according to the present invention, the copper foil becomes more flexible due to the non-urethane-based polyurethane coating on the copper foil and the embossing adhesion when the non-woven fabric coated with the PVC adhesive film is coated with the copper foil, thereby minimizing the occurrence of noise. .
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980032917A KR100326545B1 (en) | 1998-08-13 | 1998-08-13 | Low noise copper foil and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980032917A KR100326545B1 (en) | 1998-08-13 | 1998-08-13 | Low noise copper foil and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20000013824A KR20000013824A (en) | 2000-03-06 |
| KR100326545B1 true KR100326545B1 (en) | 2002-06-28 |
Family
ID=19547167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980032917A KR100326545B1 (en) | 1998-08-13 | 1998-08-13 | Low noise copper foil and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100326545B1 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR960000798U (en) * | 1994-06-18 | 1996-01-17 | 간춘기 | Combination of copper plates with furniture and building materials |
-
1998
- 1998-08-13 KR KR1019980032917A patent/KR100326545B1/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR960000798U (en) * | 1994-06-18 | 1996-01-17 | 간춘기 | Combination of copper plates with furniture and building materials |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20000013824A (en) | 2000-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2323847B1 (en) | Spring-like textured composite floor covering | |
| US7833596B2 (en) | Plastic floor covering and method for obtaining same | |
| EP2839064B1 (en) | Fabric-faced floor coverings with micro-spring face structures | |
| JP2000037842A (en) | Electromagnetic wave absorbing decorative material | |
| IE851955L (en) | Laminated web for use as a roll towel | |
| JP5145239B2 (en) | Bondable interlining material | |
| KR20180067504A (en) | Embossed fabric assembly | |
| DK2650119T3 (en) | Coatings with structural sound insulating properties, especially for surfaces made of wood materials | |
| KR100326545B1 (en) | Low noise copper foil and its manufacturing method | |
| DE60008383D1 (en) | PROTECTIVE MULTILAYER MATERIAL FOR VEHICLE CARPETS | |
| JP5242978B2 (en) | Anti-slip material | |
| TW202019683A (en) | Cushion composite structure, pad body and personal protective equipment | |
| TWI741717B (en) | Hand protector | |
| JPS6126044Y2 (en) | ||
| KR102405975B1 (en) | Method of manufacturing a synthetic resin mats for indoor living made of a woven fabric and a polyvinyl chloride foam fabric, and a synthetic resin mats for indoor living by this method | |
| JP7506927B2 (en) | Stretching mat and method for manufacturing the same | |
| DE20103075U1 (en) | Three-layer terry product, especially for beach towels | |
| JP2004084960A (en) | Hot carpet | |
| JPH038423Y2 (en) | ||
| JP4725827B2 (en) | Rug and lining processing method | |
| JPH08215131A (en) | Entrance mat | |
| JPH053113Y2 (en) | ||
| JP3911758B2 (en) | Electric warmer | |
| JPH11222951A (en) | Cushioning material for soundproof floor material | |
| JP2930884B2 (en) | Heating floor material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| LAPS | Lapse due to unpaid annual fee |