CN108102567B - A kind of high-performance PVC anti-coating film for flexible circuit board and its preparation method and application - Google Patents
A kind of high-performance PVC anti-coating film for flexible circuit board and its preparation method and application Download PDFInfo
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- CN108102567B CN108102567B CN201810015764.6A CN201810015764A CN108102567B CN 108102567 B CN108102567 B CN 108102567B CN 201810015764 A CN201810015764 A CN 201810015764A CN 108102567 B CN108102567 B CN 108102567B
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
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- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
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- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
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Abstract
本发明属于保护膜领域，公开了一种柔性线路板用高性能PVC防镀膜及其制备方法和应用。该柔性线路板用高性能PVC防镀膜从上至下依次设置为离型纸层，橡胶型压敏胶层，底涂层以及PVC基材层。其可以代替传统的干膜工艺，简化了作业流程，提高了生产效率，节约了生产成本，避免显影剂、脱膜剂等化学试剂排放而污染环境。同时，由于本发明涉及的PVC保护膜的橡胶压敏胶层，具有耐酸碱，粘性可控，耐温性优良的特性，不会出现渗镀、残胶等不良现象，明显提高了产品良率。
The invention belongs to the field of protective films, and discloses a high-performance PVC anti-coating film for flexible circuit boards and a preparation method and application thereof. The high-performance PVC anti-coating film for the flexible circuit board is sequentially arranged from top to bottom as a release paper layer, a rubber-type pressure-sensitive adhesive layer, a primer layer and a PVC substrate layer. It can replace the traditional dry film process, simplifies the operation process, improves the production efficiency, saves the production cost, and avoids the discharge of chemical reagents such as developer and film release agent to pollute the environment. At the same time, because the rubber pressure-sensitive adhesive layer of the PVC protective film involved in the present invention has the characteristics of acid and alkali resistance, controllable viscosity, and excellent temperature resistance, there will be no undesirable phenomena such as bleeding plating and residual glue, which significantly improves the product quality. Rate.
Description
Technical Field
The invention belongs to the field of protective films, and particularly relates to a high-performance PVC (polyvinyl chloride) anti-plating film for a flexible circuit board, and a preparation method and application thereof.
Background
With the rapid development of electronic technology, electronic products such as mobile phones, computers, digital cameras, televisions and the like are changing day by day, and circuit boards are used as carriers of electronic components and devices, and have been developed in the directions of multifunction, large capacity, small volume, thinness and light weight. A Flexible Printed Circuit (FPC), which is generally a flexible printed circuit board made of polyimide as a base material, has the advantages of high wiring density, light weight, thin thickness, and good bending property, compared to a common rigid Printed Circuit Board (PCB), and is increasingly widely used. When the FPC board is subjected to selective surface treatment (such as gold plating and gold melting), chinese publication CN201210074355.6 discloses a process of attaching a dry film: making a film → outer layer pretreatment → pasting a dry film → exposure → development → nickel plating and gold plating → film stripping. It has the following disadvantages: 1) the equipment is more, and the investment cost is high; 2) the production period is long, and the production efficiency is low; 3) strong acid and strong alkali compounds are needed, and the recovery and the treatment are difficult; 4) the quality risk is large, and the production process is easy to have the quality abnormity such as diffusion plating, unclean stripping and the like.
The dry film is a high molecular compound which can be polymerized to form a stable substance to be attached to the board surface after being irradiated by ultraviolet rays. The dry film is used as the selective material of the FPC, and the functions of the FPC are realized by the working procedures of film preparation, pretreatment, exposure, development and the like before and after the dry film is used, so expensive supporting equipment is required, and the working procedure is complex and tedious.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a high-performance PVC anti-plating film for a flexible circuit board, which has excellent heat resistance, good acid resistance and good conformability and is easy to strip.
The invention also aims to provide a preparation method of the high-performance PVC anti-plating film for the flexible circuit board.
The invention further aims to provide application of the high-performance PVC anti-plating film for the flexible circuit board. When the method is applied to FPC selective surface treatment, the existing dry film process can be as follows: manufacturing a film → outer layer pretreatment → pasting a dry film → exposure → development → gold melting → film removal, which is simplified as the following process: PVC anti-plating film die cutting and punching → pasting → pressing film → melting gold → tearing film.
The purpose of the invention is realized by the following scheme:
a high-performance PVC anti-coating film for a flexible circuit board is sequentially provided with a release paper layer, a rubber type pressure sensitive adhesive layer, a bottom coating and a PVC base material layer from top to bottom.
The release paper is single-sided or double-sided silicon oil paper, the color of the release paper is one of yellow, white and blue, the gram weight is 35-250 g/square, the normal-temperature peel strength is 0.03-0.80N/25mm, the residual adhesion rate is more than or equal to 80%, and the release paper can be purchased from markets in a conventional way.
The release paper has the following functions: 1) the plasticizer can be prevented from migrating from the PVC base material layer to the coiled rubber type pressure-sensitive adhesive layer, so that the use is influenced due to the reduction of the pressure-sensitive adhesive property; 2) the pressure-sensitive adhesive layer of the coiled PVC protective film is prevented from being bonded with the back of the PVC base material layer, so that uncoiling is facilitated; 3) the punch forming is convenient when in use.
The rubber pressure-sensitive adhesive layer is formed by stirring, mixing and dissolving natural rubber, solution polymerized styrene-butadiene rubber, tackifying resin, an anti-aging agent, a crosslinking agent and a solvent, and drying, wherein the thickness of the rubber pressure-sensitive adhesive layer is 5-20 micrometers, and the peel strength of the rubber pressure-sensitive adhesive layer to a 304 stainless steel plate is 0.2-2N/25 mm.
Preferably, the rubber type pressure sensitive adhesive layer consists of the following components in parts by weight:
the solution polymerized styrene-butadiene rubber is preferably one or a mixture of a plurality of solution polymerized styrene-butadiene rubbers with the trade marks of 1205, 1753, T2003 and 303;
the tackifying resin is preferably one or a mixture of a plurality of rosin resin, terpene resin, petroleum resin and coumarone resin, and can improve cohesive strength, adhesive property, heat resistance, aging resistance and the like of the rubber pressure-sensitive colloid system;
the antioxidant is preferably one or a mixture of more of antioxidant BHT, antioxidant DBH, antioxidant DNP, antioxidant RD, antioxidant MB, antioxidant MMB and antioxidant 2246;
the cross-linking agent is preferably one or a mixture of Toluene Diisocyanate (TDI), diphenylmethane diisocyanate (MDI), alkylphenol aldehyde resin, dibenzoyl peroxide and methyl methacrylate;
the solvent is preferably one or a mixture of toluene, xylene, gasoline, n-hexane and pentane.
The base coat comprises the following components in parts by weight:
15-35 parts of solution polymerized styrene-butadiene rubber
0.5-2 parts of dibenzoyl peroxide
63-84.5 parts of toluene.
The solution polymerized styrene-butadiene rubber in the bottom coating is preferably solution polymerized styrene-butadiene rubber with the mark of 1205.
The base coat is obtained by mixing the raw materials of the base coat, coating the mixture on a PVC base material layer in any one of coating modes of a scraper, a reticulate pattern roller and a micro-concave and then baking; the baking temperature is 40-80 ℃, the baking time is 5-20 seconds, and the thickness of the dried bottom coating is 0.1-2 microns.
The primer layer can strengthen the effective combination of the rubber type pressure sensitive adhesive layer and the PVC base material layer, so that the PVC base material layer cannot cause the falling of the adhesive due to the insufficient polarity and poor affinity with the rubber type pressure sensitive adhesive layer.
The PVC base material layer is a PVC soft film (the addition of the plasticizer is more than 25 phr) with the thickness of 50-100 microns, and compared with a hard film, the PVC soft film has the characteristics of excellent ductility, tear strength and cold resistance, and can be obtained through market channels.
A preparation method of the high-performance PVC anti-plating film for the flexible circuit board mainly comprises the following steps:
(1) mixing the raw materials of the base coat, then coating the mixture on the PVC base material layer in any one coating mode of a scraper, a reticulate pattern roller and a micro-concave, and baking to form the base coat;
(2) stirring and mixing the raw materials of the rubber type pressure-sensitive adhesive layer in a closed stirring reaction kettle for 6-10 hours, fully dissolving, filtering by a 50-200 mesh nylon filter screen, coating on the bottom coating by a scraper coater, baking by an oven, drying until the residual volatile is less than or equal to 0.6%, and baking to form the rubber type pressure-sensitive adhesive layer;
(3) and (3) laminating the surface of the PVC base material layer coated with the primer layer and the rubber type pressure-sensitive adhesive layer with a release paper layer through a laminating device of a scraper coater before coiling, and cutting into required specifications by a slitting machine according to the use size to obtain the high-performance PVC anti-plating film for the flexible circuit board.
The baking in the step (1) is that the baking temperature is 40-80 ℃, the baking time is 5-20 seconds, and the thickness of the bottom coating after the baking is 0.1-2 microns;
the baking in the step (2) is baking in an oven at 60-150 ℃ for 40-160 seconds;
preferably, the baking in the step (2) is carried out in a multi-section continuous oven at the temperature of 60-150 ℃, the interiors of the ovens are mutually communicated, the baking time in each section of oven is 5-20 seconds, and the baking time is controlled by the speed of the PVC film driven by the conveyor belt;
more preferably, the baking in the step (2) is baking in a continuous oven with 8 sections and 4 meters per section of oven, the oven temperature is sequentially set to be 60 ℃, 70 ℃, 90 ℃, 130 ℃, 135 ℃, 90 ℃, and the baking time in each section of oven is 12 seconds, wherein the baking time is controlled by the speed of the PVC film being drawn;
the thickness of the dried rubber type pressure sensitive adhesive layer in the step (2) is 5-20 micrometers.
The high-performance PVC anti-plating film for the flexible circuit board is applied to the selective surface treatment of the flexible circuit board.
The high-performance PVC anti-coating film for the flexible circuit board can simplify the selective surface treatment process of the flexible circuit board into: (1) the flexible circuit board is cut and punched by a high-performance PVC anti-coating die; (2) pasting a film; (3) film pressing; (4) gold immersion; (5) and (6) tearing the film.
The mechanism of the invention is as follows:
the PVC anti-plating film is a PVC soft film selected from market channels, has good flexibility and ductility, is attached to the surface of an uneven FPC with a height step difference on the surface, does not generate obvious swell and shrinkage, is coated with high-performance rubber type pressure-sensitive adhesive with high temperature resistance and acid and alkali resistance, has good wettability, is firmly bonded with the surface, does not generate phenomena such as warping, adhesive residue, seepage and the like, and is coated with a bottom coating capable of strengthening effective combination between a PVC base material layer and the rubber type pressure-sensitive adhesive layer, so the PVC anti-plating film can be used as a protective film for the surface treatment of the FPC. When the PVC anti-plating film is used, die cutting and punching are carried out according to the surface treatment characteristics and the size of the FPC board, and the purpose of shielding and protecting the position which does not need surface treatment can be achieved.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the traditional dry film process needs to achieve the purpose of shielding protection through film manufacturing, pretreatment, exposure and development. The PVC anti-plating film has excellent heat resistance, good solvent resistance and conformability and easy stripping, and can achieve the purpose of shielding and protecting the position which does not need surface treatment only by carrying out die cutting and punching according to the surface treatment characteristics and the size of the FPC when in use. The high-performance PVC anti-coating film can replace the traditional dry film process, simplify the operation process, improve the production efficiency, save the production cost and avoid the pollution to the environment caused by the discharge of chemical reagents such as developers, release agents and the like. Meanwhile, the pressure-sensitive adhesive layer of the PVC protective film has the characteristics of acid and alkali resistance, controllable viscosity and excellent temperature resistance, so that the phenomena of diffusion coating, adhesive residue and the like are avoided, and the product yield is obviously improved.
Drawings
FIG. 1 is a structural diagram of a high-performance PVC anti-plating film for a flexible circuit board according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the embodiments of the present invention are not limited thereto.
The reagents used in the examples are commercially available without specific reference. Wherein the solution polymerized styrene-butadiene rubber 1205 is a product of Korea petrochemical Co., Ltd., (+); the solution polymerized styrene-butadiene rubber 1753 is 1753 produced by Limited division of Petroleum rubber at Hongkong of Tianjin; the rosin glycerin ester 138 is rosin glycerin ester 138 produced by Guangzhou Songbao chemical industry Co.
Example 1
(a) The preparation method of the high-performance PVC anti-plating film comprises the following steps:
(1) the raw materials of the base coat are mixed according to the proportion, evenly stirred and poured into a base glue groove, coated on a blue PVC film with the thickness of 75 microns and the hardness of 36, which is produced by southern Asia plastics Co., Ltd, by a 110-mesh screen roller, and baked for 12 seconds at 50 ℃ by a baking oven with 1 section length of 4 meters to form 1 base glue layer with the thickness of 0.3-0.5 micron.
The base coat consists of the following components in parts by weight:
solution polymerized styrene-butadiene rubber 1205: 30 portions of
0.8 portion of dibenzoyl peroxide
69.2 parts of toluene.
(2) Stirring and mixing the raw materials of the rubber type pressure sensitive adhesive layer in a closed stirring reaction kettle for 8 hours, fully dissolving, pumping, filtering by using a 100-mesh nylon filter screen to a glue tank, coating on the bottom coating layer by using a scraper coater, and baking in 8 continuous baking ovens with the baking oven temperatures of 60 ℃, 70 ℃, 90 ℃, 130 ℃, 135 ℃ and 90 ℃ in sequence, wherein the baking time in each oven is 12 seconds to form a rubber type pressure sensitive adhesive layer with the thickness of 8 +/-3 micrometers;
the rubber type pressure-sensitive adhesive layer comprises the following components in parts by weight:
(3) after passing through a continuous 8-section oven, a rubber type pressure-sensitive adhesive layer on the PVC film is attached to a silicone oil surface of yellow single-sided silicone oil paper (New Yongtai adhesive product Co., Ltd. in south China sea of Fushan City) through an attaching device, and then a cutting machine is used for cutting the PVC anti-coating film into films with required widths.
(b) The PVC anti-plating performance is tested, and the result is as follows:
the bonding property of the rubber type pressure-sensitive adhesive layer and the PVC soft film is as follows: cut into 2 samples of 50mm 200mm with PVC anti-plating membrane, tear release paper layer, with 1 rubber type pressure sensitive adhesive layer surface and 1 rubber type pressure sensitive adhesive layer surface mutual contact and make a round trip to rub 5 times in addition wherein on horizontal desktop, discover to glue and do not drop, show that the primary coat adhesive layer has improved rubber pressure sensitive adhesive and PVC soft film and has combined fastness.
180 ° peel strength test: according to GB/T2792-1998, the PVC anti-plating film is prepared into a standard sample of 25mm by 200mm, and then the standard sample is attached to a clean 304 stainless steel plate of 1.5mm by 40mm by 120mm, and is subjected to back pressing for 3 times by an electric pressing roller, wherein the mass of the pressing roller is 2kg, and the rolling speed is 300 mm/min. The test piece is placed in an environment with 23 +/-2 ℃ and 65 +/-5% RH for 20min and then is subjected to 180-degree peel strength test on a precision tensile testing machine, the peeling speed is 300mm/min, and the test peel strength is 0.3N/25 mm.
High temperature test (for steel sheet): according to the 180-degree peel strength test operation method, a PVC anti-plating film with the width of 25mm is attached to a 304 stainless steel plate, the stainless steel plate is placed in an oven at the temperature of 85 ℃, and the protective film is taken out after 40 minutes, so that the protective film does not shrink, warp or glue residue, and the selected PVC anti-plating film has good heat resistance, and the cohesive strength of the rubber type pressure-sensitive adhesive layer meets the design requirement.
And (3) penetration plating test: the high-performance PVC anti-plating film is subjected to die cutting and punching to prepare 5 samples of 25mm x 200mm, the samples are attached to a copper surface needing to be protected on an FPC board, the samples are pressed by a roller press, the rolling temperature is 90 ℃, the rolling speed is 1.5mm/s, the pressure is 5kg/cm2, the samples are soaked in an acidic solution (diluted by concentrated sulfuric acid and tested for pH value by a pH meter) of 85 ℃ and pH 4 for 40 minutes, the samples are taken out and placed for 20 minutes, then the PVC anti-plating film is torn off, and the copper surface is observed under a microscope of 10-50 times, so that the copper surface has no adhesive residue, no color change and no permeation phenomenon, and the anti-plating film has good performance and can be used for surface treatment of gold melting, gold plating and the like of the FPC.
Example 2
(a) The preparation method of the high-performance PVC anti-plating film comprises the following steps:
(1) mixing the raw materials of the base coat according to a ratio, stirring uniformly, pouring into a primer tank, coating on a blue PVC film with the thickness of 70 microns and the hardness of 34, which is produced by southern Asia plastics Co., Ltd, by a 110-mesh screen roller, and baking for 12 seconds at 50 ℃ by a baking oven with the length of 1 section of 4 meters to form 1 layer of primer layer with the thickness of 0.3-0.5 micron;
the base coat consists of the following components in parts by weight:
solution polymerized styrene-butadiene rubber 1205: 30 portions of
1 portion of dibenzoyl peroxide
69.2 parts of toluene.
(2) Stirring and mixing the raw materials of the rubber type pressure sensitive adhesive layer in a closed stirring reaction kettle for 8 hours, fully dissolving, pumping, filtering by using a 100-mesh nylon filter screen to a glue tank, coating on the bottom coating layer by using a scraper coater, and baking in 8 continuous baking ovens with the baking oven temperatures of 60 ℃, 70 ℃, 90 ℃, 130 ℃, 135 ℃ and 90 ℃ in sequence, wherein the baking time in each oven is 12 seconds to form a rubber type pressure sensitive adhesive layer with the thickness of 8 +/-3 micrometers;
the rubber type pressure-sensitive adhesive layer comprises the following components in parts by weight:
(3) after passing through a continuous 8-section oven, the rubber type pressure-sensitive adhesive layer on the PVC film is laminated by a laminating device with the silicone oil surface of yellow single-sided silicone oil paper (New Yongtai adhesive products Co., Ltd. in south China sea of Foshan City), and then is cut into PVC anti-coating films with required width by a cutting machine.
(b) The PVC anti-plating performance is tested, and the result is as follows:
the bonding property of the rubber type pressure-sensitive adhesive layer and the PVC soft film is as follows: cutting the PVC anti-plating film into 2 samples of 50mm x 200mm, tearing the release paper layer, mutually contacting the surface of 1 rubber adhesive layer with the surface of the other 1 rubber adhesive layer on a horizontal desktop and rubbing the surfaces for 5 times back and forth, and finding that the adhesive does not fall off, thereby showing that the primer adhesive layer improves the bonding firmness of the rubber pressure-sensitive adhesive and the PVC soft film.
180 ° peel strength test: according to GB/T2792-1998, the PVC anti-plating film is prepared into a standard sample of 25mm by 200mm, and then the standard sample is attached to a clean 304 stainless steel plate of 1.5mm by 40mm by 120mm, and is subjected to back pressing for 3 times by an electric pressing roller, wherein the mass of the pressing roller is 2kg, and the rolling speed is 300 mm/min. The test piece is placed in an environment with 23 +/-2 ℃ and 65 +/-5% RH for 20min and then is subjected to 180-degree peel strength test on a precision tensile testing machine, the peeling speed is 300mm/min, and the test peel strength is 0.5N/25 mm.
High temperature test (for steel sheet): according to the 180-degree peel strength test operation method, a PVC anti-plating film with the width of 25mm is attached to a 304 stainless steel plate, the stainless steel plate is placed in an oven at the temperature of 85 ℃, and the protective film is taken out after 40 minutes, so that the protective film does not shrink, warp or glue residue, and the selected PVC anti-plating film has good heat resistance, and the cohesive strength of the rubber type pressure-sensitive adhesive layer meets the design requirement.
And (3) penetration plating test: the high-performance PVC anti-plating film is subjected to die cutting and punching to prepare 5 samples of 25mm x 200mm, the samples are attached to a copper surface needing to be protected on an FPC board, the samples are pressed by a roller press, the rolling temperature is 90 ℃, the rolling speed is 1.5mm/s, the pressure is 5kg/cm2, the samples are soaked in an acidic solution (diluted by concentrated sulfuric acid and tested for pH value by a pH meter) of 85 ℃ and pH 4 for 40 minutes, the samples are taken out and placed for 20 minutes, then the PVC anti-plating film is torn off, and the copper surface is observed under a microscope of 10-50 times, so that the copper surface has no adhesive residue, no color change and no permeation phenomenon, and the anti-plating film has good performance and can be used for surface treatment of gold melting, gold plating and the like of the FPC.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (7)
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| CN109831880A (en) * | 2019-03-11 | 2019-05-31 | 厦门华天华电子有限公司 | A kind of processing technology of FPC electroplated layer |
| CN112680132A (en) * | 2020-12-14 | 2021-04-20 | 江苏晶华新材料科技有限公司 | PVC adhesive tape and preparation process thereof |
| CN113604168B (en) * | 2021-06-04 | 2022-11-18 | 广东硕成科技股份有限公司 | PVC protective film without residual glue and preparation method thereof |
| CN113637415A (en) * | 2021-06-09 | 2021-11-12 | 广东硕成科技有限公司 | Antistatic glass etching protective film and preparation method and application thereof |
| CN113502131A (en) * | 2021-06-21 | 2021-10-15 | 广东硕成科技有限公司 | PVC (polyvinyl chloride) bright-line protective film convenient to use and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5385783A (en) * | 1993-09-08 | 1995-01-31 | Tesa Tape Inc. | High temperature-resistant masking tape |
| CN1152597A (en) * | 1996-07-29 | 1997-06-25 | 广州市化学工业研究所 | High temp. resistance pressure-sensitive adhesive tape and preparation method |
| CN1590490A (en) * | 2003-08-07 | 2005-03-09 | 三井化学株式会社 | Adhesive sheet |
| CN102120922A (en) * | 2010-10-11 | 2011-07-13 | 上海晶华粘胶制品发展有限公司 | Adhesive for high-temperature-resistant masking tape and high-temperature-resistant masking tape |
| CN102134456A (en) * | 2010-01-25 | 2011-07-27 | 日东电工株式会社 | Protective sheet and the applications thereof |
| CN103937421A (en) * | 2013-01-17 | 2014-07-23 | 日东电工株式会社 | Protective Sheet For Treating Chemical Solution |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04264791A (en) * | 1991-02-19 | 1992-09-21 | Sumitomo Electric Ind Ltd | Flexible circuit board |
| JP2004115767A (en) * | 2002-09-30 | 2004-04-15 | Nitto Denko Corp | Polyvinyl chloride adhesive tape or sheet |
| CN102344767A (en) * | 2011-10-16 | 2012-02-08 | 上海晶华粘胶制品发展有限公司 | Waterproof masking tape and adhesive for same |
-
2018
- 2018-01-08 CN CN201810015764.6A patent/CN108102567B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5385783A (en) * | 1993-09-08 | 1995-01-31 | Tesa Tape Inc. | High temperature-resistant masking tape |
| CN1152597A (en) * | 1996-07-29 | 1997-06-25 | 广州市化学工业研究所 | High temp. resistance pressure-sensitive adhesive tape and preparation method |
| CN1590490A (en) * | 2003-08-07 | 2005-03-09 | 三井化学株式会社 | Adhesive sheet |
| CN102134456A (en) * | 2010-01-25 | 2011-07-27 | 日东电工株式会社 | Protective sheet and the applications thereof |
| CN102120922A (en) * | 2010-10-11 | 2011-07-13 | 上海晶华粘胶制品发展有限公司 | Adhesive for high-temperature-resistant masking tape and high-temperature-resistant masking tape |
| CN103937421A (en) * | 2013-01-17 | 2014-07-23 | 日东电工株式会社 | Protective Sheet For Treating Chemical Solution |
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Address after: 512000 chlor alkali characteristic industrial base of hougongdu Economic Development Zone, Rucheng Town, Ruyuan County, Shaoguan City, Guangdong Province Patentee after: Guangdong Shuocheng Technology Co.,Ltd. Address before: 512799 chlor alkali characteristic industrial base of hougongdu Economic Development Zone, Rucheng Town, Ruyuan County, Shaoguan City, Guangdong Province Patentee before: GUANGDONG SHUOCHENG TECHNOLOGY Co.,Ltd. |
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Denomination of invention: A high-performance PVC anti-plating film for flexible printed circuit boards and its preparation method and application Granted publication date: 20210625 Pledgee: Industrial and Commercial Bank of China Limited Ruyuan sub branch Pledgor: Guangdong Shuocheng Technology Co.,Ltd. Registration number: Y2026980000918 |