WO2014045888A1 - 離型フィルム - Google Patents
離型フィルム Download PDFInfo
- Publication number
- WO2014045888A1 WO2014045888A1 PCT/JP2013/073962 JP2013073962W WO2014045888A1 WO 2014045888 A1 WO2014045888 A1 WO 2014045888A1 JP 2013073962 W JP2013073962 W JP 2013073962W WO 2014045888 A1 WO2014045888 A1 WO 2014045888A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- release
- release film
- film
- layer
- resin
- Prior art date
Links
Images
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
- B32B27/00—Layered products comprising a layer of synthetic resin
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin 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
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/748—Releasability
-
- 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
- B32B2457/00—Electrical equipment
- B32B2457/08—PCBs, i.e. printed circuit boards
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/281—Applying non-metallic protective coatings by means of a preformed insulating foil
Definitions
- the present invention relates to a release film.
- This application claims priority based on Japanese Patent Application No. 2012-204660 filed in Japan on September 18, 2012, the contents of which are incorporated herein by reference.
- a release film having a release layer made of polybutylene terephthalate resin (hereinafter referred to as“ PBT release film ”)” has been proposed (Japanese Patent No. 4099355).
- a release film is, for example, a coverlay film (hereinafter referred to as a “CL film”) via an adhesive (hereinafter referred to as a CL adhesive) to a flexible film (hereinafter referred to as a “circuit exposed film”) from which a circuit is exposed. )
- CL film coverlay film
- a CL adhesive an adhesive
- circuit exposed film flexible film
- FPC flexible printed circuit board
- Such a release film has an excessive adhesion of the release layer to the circuit exposure film, the CL film and the CL adhesive, and the fusion between the release layers when the CL film is adhered to the circuit exposure film. Adhesion between the circuit exposed film and CL film is shown by the adhesive between the circuit exposed film and the CL film. The amount of bleeding can be kept within an allowable range.
- the object of the present invention is to improve the releasability at the time of bonding a CL film to a circuit-exposed film (particularly to reduce peeling failure due to excessive adhesion between the release film and the CL adhesive) and to release a conventional mold.
- An object of the present invention is to provide a release film capable of obtaining good embedding properties as well as a film.
- the release film according to the present invention can prevent adhesion of the release layer to the circuit-exposed film and the CL film as well as the conventional PBT release film, CL adhesive, and adhesion between the release layers, The amount of the adhesive between the circuit-exposed film and the CL film that appears on the circuit pattern portion can be reduced as compared with the conventional PBT release film.
- the release film 100 mainly includes a release layer 110 and a cushion layer 120.
- the thickness of the release film 100 is preferably 25 ⁇ m or more and 300 ⁇ m or less. 50 ⁇ m or more and 200 ⁇ m or less is more preferable, and 80 ⁇ m or more and 120 ⁇ m or less is more preferable.
- the thickness of the release film is smaller than the lower limit range, the release property with the FPC is insufficient, and there is a possibility that a resin residue is generated on the FPC circuit surface.
- the embedding property in the FPC circuit portion is insufficient, and the amount of CL adhesive may increase.
- each of these layers will be described in detail.
- the release layer 110 includes polybutylene terephthalate and lubricant fine particles having an ester group and a nonpolar group.
- the ester group is compatible with polybutylene terephthalate, and if the lubricant fine particles do not have an ester group, the incompatible lubricant fine particles may be lost by heating press, transferred to the FPC surface, and contaminated. There is.
- the nonpolar group of the lubricant fine particles is less compatible with polybutylene terephthalate than the ester group. For this reason, when the nonpolar group part in lubricant fine particles is unevenly distributed or exposed near the surface of the release layer 110, the surface free energy of the release layer 110 is reduced, and the release property of the release film 100 is reduced. It contributes to improvement.
- elastomer resin examples include natural rubber, polybutadiene, polyisoprene, polyisobutylene, neoprene, polysulfide rubber, thiocol rubber, acrylic rubber, urethane rubber, silicone rubber, epichlorohydrin rubber, styrene-butadiene block copolymer (SBR).
- natural rubber polybutadiene, polyisoprene, polyisobutylene, neoprene, polysulfide rubber, thiocol rubber, acrylic rubber, urethane rubber, silicone rubber, epichlorohydrin rubber, styrene-butadiene block copolymer (SBR).
- SBR styrene-butadiene block copolymer
- polyolefin resins examples include linear high density polyethylene, linear low density polyethylene, high pressure low density polyethylene, isotactic polypropylene, syndiotactic polypropylene, block polypropylene, random polypropylene, polybutene, 1,2- Examples include polybutadiene, 4-methylpentene, cyclic polyolefin, and copolymers thereof (for example, ethylene-methyl methacrylate copolymer).
- polystyrene resin examples include atactic polystyrene, isotactic polystyrene, syndiotactic polystyrene, high impact polystyrene (HIPS), acrylonitrile-butadiene-styrene copolymer (ABS), and acrylonitrile-styrene copolymer (AS).
- HIPS high impact polystyrene
- ABS acrylonitrile-butadiene-styrene copolymer
- AS acrylonitrile-styrene copolymer
- Styrene-methacrylic acid copolymer Styrene-methacrylic acid copolymer, styrene-methacrylic acid / alkyl ester copolymer, styrene-methacrylic acid / glycidyl ester copolymer, styrene-acrylic acid copolymer, styrene-acrylic acid / alkyl ester Examples thereof include a copolymer, a styrene-maleic acid copolymer, and a styrene-fumaric acid copolymer.
- polyester resin examples include polycarbonate, polyethylene terephthalate, and polybutylene naphthalate.
- polyamide-based resin examples include nylon (registered trademark) 6, nylon (registered trademark) 6, 6, and the like.
- the release layer 110 is blended with various additives other than lubricant fine particles, such as antiblocking agents, antioxidants, nucleating agents, antistatic agents, process oils, plasticizers, flame retardants, flame retardant aids, pigments, and the like. It doesn't matter.
- examples of the antiblocking agent include the following inorganic particles or organic particles.
- Inorganic particles include Group IA, Group IIA, Group IVA, Group VIA, Group VIIA, Group VIIIA, Group IB, Group IIB, Group IIIB, Group IVB oxides, hydroxides, sulfides, nitrides, halogens , Carbonates, sulfates, acetates, phosphates, phosphites, organic carboxylates, silicates, titanates, borates and their water-containing compounds, and composite compounds and natural mineral particles centered on them Is mentioned.
- inorganic particles include group IA element compounds such as lithium fluoride and borax (sodium borate hydrate); magnesium carbonate, magnesium phosphate, magnesium oxide (magnesia), magnesium chloride, acetic acid Magnesium, magnesium fluoride, magnesium titanate, magnesium silicate, magnesium silicate hydrate (talc), calcium carbonate, calcium phosphate, calcium phosphite, calcium sulfate (gypsum), calcium acetate, calcium terephthalate, calcium hydroxide, silicic acid
- Group IIA element compounds such as calcium, calcium fluoride, calcium titanate, strontium titanate, barium carbonate, barium phosphate, barium sulfate, barium sulfite; titanium dioxide (titania), titanium monoxide, titanium nitride, Group IVA element compounds such as zirconium oxide (zirconia) and zirconium monoxide;
- Group VIA element compounds such as molybdenum dioxide, molybdenum trioxide and
- organic particles examples include fluororesins, melamine resins, styrene-divinylbenzene copolymers, acrylic resin silicones, and cross-linked products thereof.
- the average particle size of the above-mentioned inorganic particles and organic particles is preferably 0.1 ⁇ m or more and 10 ⁇ m or less, and the addition amount is preferably 0.01% by weight or more and 15% by weight or less.
- antiblocking agents can be used individually or in combination of 2 or more types.
- Antioxidants include phosphorus antioxidants, phenolic antioxidants, sulfur antioxidants, 2-[(1-hydroxy-3,5-di-t-pentylphenyl) ethyl] -4,6- And di-t-pentylphenyl acrylate. These antioxidants can be used alone or in combination of two or more.
- Nucleating agents include metal salts of carboxylic acids such as aluminum di (pt-butylbenzoate), metal salts of phosphoric acid such as methylenebis (2,4-di-t-butylphenol) acid phosphate, talc, phthalocyanine derivatives Etc. In addition, these nucleating agents can be used individually or in combination of 2 or more types.
- plasticizer examples include polyethylene glycol, polyamide oligomer, ethylene bisstearamide, phthalate ester, polystyrene oligomer, polyethylene wax, silicone oil, and the like.
- plasticizers can be used individually or in combination of 2 or more types.
- Process oils include paraffinic oil, naphthenic oil, and aroma oil. Of these, paraffinic oils having a percentage of the total number of carbon atoms related to paraffin (straight chain) calculated by the ndM method of 60% Cp or more are preferable.
- the kinematic viscosity at 40 ° C. is preferably 15 cs or more and 600 cs or less, and more preferably 15 cs or more and 500 cs or less.
- the amount of process oil added is preferably 0.01 parts by weight or more and 1.5 parts by weight or less, and preferably 0.05 parts by weight or more and 1.4 parts by weight or less with respect to 100 parts by weight of the release layer forming resin. More preferably, it is 0.1 to 1.3 parts by weight.
- these process oil can be used individually or in combination of 2 or more types.
- the lubricant fine particles have an ester group and a non-polar group compatible with the release layer resin, and the difference in solubility parameter with the release layer is preferably 8.0 or less, and 6.0 or less. More preferably, it is more preferably 4.0 or less.
- the solubility parameter ( ⁇ ) is defined as the square root of the density per unit volume of the intermolecular cohesive energy E, and is specifically defined by the following formula.
- the average particle size of the lubricant fine particles is preferably 0.05 ⁇ m or more and 10.0 ⁇ m or less, more preferably 0.1 ⁇ m or more and 8.0 ⁇ m or less, and further preferably 0.5 ⁇ m or more and 6.0 ⁇ m or less. It is preferable.
- the average particle size is lower than the lower limit of the range, the releasability from the FPC is insufficient, and resin residue on the circuit surface may occur.
- the average particle diameter is higher than the upper limit of the range, the surface state of the release layer resin is deteriorated, the surface shape is transferred by hot pressing, and the FPC surface may be deteriorated.
- the addition amount of the lubricant fine particles is 0.001 wt% or more and 15.0 wt% or less, preferably 0.01 wt% or more and 5.0 wt% or less, and 0.1 wt% or more and 1.0 wt% or less. More preferably, it is preferably 0.3 wt% or more and 0.5 wt% or less.
- the addition amount is lower than the lower limit of the range, the releasability from the FPC is insufficient, and there is a possibility that the resin residue on the circuit surface is generated.
- the addition amount is higher than the upper limit of the range, extrusion film formation becomes difficult due to the melt viscosity of the entire release layer resin becoming too low, and the lubricant itself may adhere to the FPC. .
- the thickness of the release layer 110 is preferably 5 ⁇ m or more and 40 ⁇ m or less, more preferably 10 ⁇ m or more and 35 ⁇ m or less, and further preferably 15 ⁇ m or more and 30 ⁇ m or less.
- the surface free energy of the release layer is preferably 50 mJ / m 2 or less, further preferably 45 mJ / m 2 or less, and most preferably 40 mJ / m 2 or less.
- cushion layer The release film 100 of the present invention can be further improved in close contact with the adherend by providing the cushion layer 120 as shown in FIG.
- a known resin can be used as long as it has an appropriate flexibility showing cushioning properties.
- Specific examples include, for example, ⁇ -olefin polymers such as polyethylene and polypropylene, and ⁇ -olefin copolymers having ethylene, propylene, butene, pentene, hexene, methylpentene and the like as copolymer components.
- Examples include polyolefin resins, polyethersulfone, engineering plastics resins such as polyphenylene sulfide, and polyester resins such as polybutylene terephthalate. These may be used alone or in combination.
- the cushioning property is insufficient and the mold following to the FPC circuit may be insufficient.
- the polyester resin is not included, the cushion layer resin may flow out from the end of the film and contaminate the press board.
- a copolymer of ⁇ -olefin such as ethylene and a (meth) acrylic acid ester, a copolymer of ethylene and vinyl acetate, a copolymer of ethylene and (meth) acrylic acid (EMMA), And a partial ion cross-linked product thereof.
- (Meth) acrylic acid is a general term for acrylic acid and methacrylic acid. Among them, it is desirable to include any one or more of a copolymer of ethylene and methacrylic acid, polypropylene, and maleic acid-modified polyethylene, and it is more desirable to include all.
- Inclusion of a copolymer of ethylene and (meth) acrylic acid increases cushioning properties, and inclusion of polypropylene can suppress the flow of resin from the film end face of the cushion layer, and release by including maleic acid-modified polyethylene.
- the adhesive strength with the layer can be improved and the compatibility with the polyester resin can be improved.
- the polyester resin is preferably made of polybutylene terephthalate.
- polybutylene terephthalate By using polybutylene terephthalate, it is possible to suppress the seepage of the intermediate layer from the end during heat pressing, and to improve the adhesive strength with the release layer 110.
- the thickness of the cushion layer 120 is preferably at least 3 times the thickness of the release layer 110, and more preferably at least 5 times, in order to obtain more favorable adhesion to the adherend. More preferably, it is more preferably 8 times or more.
- an anchor layer or a primer layer adheresive layer
- the above-mentioned elastomer resin and additives may be blended with the cushion layer forming resin as necessary, as long as the spirit of the present invention is not impaired.
- the thickness of the cushion layer 120 is not particularly limited, but is preferably 10 ⁇ m or more and 100 ⁇ m or less, more preferably 20 ⁇ m or more and 80 ⁇ m or less, and still more preferably. 30 ⁇ m or more and 60 ⁇ m or less.
- the thickness of the cushion layer 120 is less than the lower limit value, the embedding property in the FPC circuit portion may be insufficient in the hot press process, and the amount of the CL adhesive may be increased.
- the thickness of the cushion layer 120 When the value exceeds the upper limit, there is a possibility that in the hot press process, resin stains from the cushion layer increase, adhere to the hot platen of the crimping apparatus, and workability decreases.
- the release film 100 of FIG. 1 according to the present embodiment can be manufactured by a method such as a coextrusion method or an extrusion lamination method.
- a release film 100 is manufactured by simultaneously extruding the first release layer 1 and the cushion layer 2 using a feed block and a multi-manifold die.
- the melt M that has passed through the die 510 is guided to the first roll 530 and fixed to the first roll 530 by the touch roll 520 as shown in FIG.
- the release film 200 is cooled by the first roll 530 until it is detached from the 530. Thereafter, the release film 200 is sent to the downstream side in the film feeding direction (see the arrow in FIG. 3) by the second roll 540, and is finally taken up by a take-up roll (not shown).
- the temperature of the first roll 530 is preferably 30 to 50 ° C.
- the temperature of the touch roll 520 is preferably 30 to 100 ° C.
- the peripheral speed of the second roll 540 with respect to the first roll 530 The ratio is preferably from 0.990 to 0.998.
- the temperature of the extruder cylinder is set to 225 to 250 ° C.
- the release layer 110 is extruded
- the release layer 110 and the cushion layer 120 are joined together to form the release property 110 and the cushion layer 120.
- the release film 100 is manufactured by laminating.
- the release layer forming resin melt M that has passed through the die 510 is guided to the first roll 530 and detached from the first roll 530, as shown in FIG.
- the release layer film F is cooled by the first roll 530. Thereafter, the release layer film F is sent downstream by the second roll 540 in the film feeding direction (see the arrow in FIG. 3).
- a release film 100 is manufactured.
- the release film 100 manufactured in this way is further wound up by the winding roll (not shown) provided in the film feed direction downstream.
- the temperature of the first roll 530 is preferably 30 to 50 ° C.
- the peripheral speed ratio of the second roll 540 to the first roll 530 is preferably 0.990 to 0.998.
- the release film 100 is disposed so as to wrap the CL film so that the CL film adheres to the concavo-convex portion of the circuit pattern when the CL film adheres to the circuit exposed film. At the same time, it is pressurized by a press device. Specifically, as shown in FIG. 4, the release film 100 is such that the circuit-exposed film and the CL film are temporarily fixed with an adhesive 340 so that the release layer of the release film 100 faces the release film 100. Is sandwiched between rubber cushions 320 and pressed with a hot platen 300. The heating method using the hot platen 300 is as shown in FIG.
- the hot platen 300 is heated to 170 to 200 ° C. and is pressurized for 1 to 3 minutes.
- the pressing pressure at this time is appropriately adjusted to 3 to 15 MPa.
- the release film 100 according to the embodiment of the present invention is disposed so as to wrap the CL film so that the CL film adheres to the concavo-convex portion of the circuit pattern when the CL film adheres to the circuit exposed film. At the same time, it is pressurized by a press device.
- the release layer 110 of the release film 100 is opposite to the one 340 in which the circuit exposure film and the CL film are temporarily fixed with an adhesive.
- the Teflon (registered trademark) sheet 330, the rubber cushion 320 and the stainless steel plate 310 are sequentially sandwiched and pressed by the hot platen 300 (see white arrows in FIG. 4).
- the heating method using the hot platen 300 is as shown in FIG. That is, the hot platen 300 is heated from room temperature to 170 ° C. in 15 minutes after the start of pressurization, and then maintained at that temperature for 35 minutes. Thereafter, the hot platen 300 is cooled from 170 ° C. to room temperature over 50 minutes. Note that pressurization by the hot platen 300 is started at the time of 0 minutes and released at the time of 100 minutes. The pressing pressure at this time is appropriately adjusted to 5 to 15 MPa.
- release film 100 in which the release layer 110 is provided only on one side of the cushion layer 120 was introduced.
- FIG. A release film 100A provided with 110b is also included in one embodiment of the present invention.
- the release layer denoted by reference numeral 110a is referred to as a “first release layer”
- the release layer denoted by reference numeral 110b is referred to as a “second release layer”.
- the first release layer 110a has the same structure as the release layer 110 according to the previous embodiment.
- the second release layer 110b may have the same structure as the first release layer 110a, or may have a different structure from the first release layer 110a.
- the second release layer 110b is formed of, for example, a polypropylene resin, a polymethylpentene resin, a methylpentene- ⁇ -olefin copolymer, or a resin mainly composed of a polystyrene resin having a syndiotactic structure.
- the Polymethylpentene resin and methylpentene- ⁇ olefin copolymer are commercially available from Mitsui Chemicals, Inc.
- TPX polystyrene resin having a syndiotactic structure
- Zalek trade name
- the adhesive force between the second release layer 110b and the cushion layer 120 may be reduced.
- an anchor layer or a primer layer is interposed between the second release layer 110b and the cushion layer 120. (Adhesive layer) may be interposed.
- the 2nd mold release layer 110b is formed from resin which has a polypropylene resin as a main component, since the adhesiveness of the said cushion layer and the 2nd mold release layer 110b is favorable, it anchors between those layers. There is no need to interpose a layer or primer layer (adhesive layer).
- a release film (see FIG. 2) having a first release layer and a second release layer on the front and back sides of the cushion layer was produced using a coextrusion method.
- both the first release layer and the second release layer are a blend resin of polybutylene terephthalate and lubricant particles, and the cushion layer is an ethylene-methyl methacrylate copolymer.
- a release film was prepared by simultaneously extruding a blend of maleic acid-modified polyethylene, polypropylene and polybutylene terephthalate.
- the temperature of the first roll 530 was 30 ° C.
- the peripheral speed ratio of the second roll 540 to the first roll 530 was 0.998.
- the thickness of the first release layer of this release film was 25 ⁇ m
- the thickness of the cushion layer was 70 ⁇ m
- the thickness of the second release layer was 25 ⁇ m.
- the thickness of each layer cut out the cross section of the film, and measured it using the microscope from the cross-sectional direction.
- the surface free energy of this release film was determined by the droplet method.
- CL adhesive exudation amount Whether or not there is a seepage of the CL adhesive layer on the circuit board conforms to “JPCA Standard Section 7.5.3.6 Coverlay Adhesive Flow and Cover Coat Bleed” to the circuit terminal. The amount of oozing out was evaluated. The exudation amount was less than 150 ⁇ m as acceptable. A: Exudation amount less than 100 ⁇ m ⁇ : Exudation amount of 100 ⁇ m or more and less than 150 ⁇ m ⁇ : Exudation amount of 150 ⁇ m or more
- Film end face oozing amount Evaluated by the release film end face bleed length (measured by measuring the maximum length of the resin oozed from the film 4 direction end face). The exudation length of less than 3 mm was regarded as acceptable.
- ⁇ seepage length less than 1 mm
- ⁇ seepage length 1 mm or more and less than 3 mm
- ⁇ seepage length 3 mm or more
- Appearance The appearance of the film coextruded from the multi-manifold was visually observed and evaluated. A film having good appearance, such as a flow mark, foreign matter, and fisheye, was accepted as a pass. ⁇ : No appearance defect ⁇ : Appearance defect only in part ⁇ : Appearance defect on the entire surface
- Example 1 the amount of the adhesive between the circuit exposed film and the CL film that oozes out to the circuit pattern was less than 80 ⁇ m. Moreover, the release film after hot pressing can be easily peeled from the circuit-exposed film, and the release failure occurrence rate of the release film was less than 1.0%. The void generation rate was less than 2%. Further, the length of bleeding from the end face of the film was less than 1 mm. As for the appearance, there was no appearance defect
- Example 2 A release film was prepared in the same manner as in Example 1 except that the resin weight ratio in the resin composition used for the release layer was as shown in Table 1, and Example 1 was applied to the release film. Similar evaluations were made. The results are shown in Table 1.
- Example 3 A release film was prepared in the same manner as in Example 1 except that the resin weight ratio in the resin composition used for the release layer was as shown in Table 1, and Example 1 was applied to the release film. Similar evaluations were made. The results are shown in Table 1.
- Example 4 A release film was prepared in the same manner as in Example 1 except that the resin weight ratio in the resin composition used for the release layer was as shown in Table 1, and Example 1 was applied to the release film. Similar evaluations were made. The results are shown in Table 1.
- Example 5 A release film was prepared in the same manner as in Example 1 except that the resin weight ratio in the resin composition used for the release layer was as shown in Table 1, and Example 1 was applied to the release film. Similar evaluations were made. The results are shown in Table 1.
- Example 6 A release film was prepared in the same manner as in Example 1 except that the resin weight ratio in the resin composition used for the cushion layer was as shown in Table 1, and the release film was the same as in Example 1. Was evaluated. The results are shown in Table 1.
- Example 7 A release film was prepared in the same manner as in Example 1 except that the resin weight ratio in the resin composition used for the cushion layer was as shown in Table 1, and the release film was the same as in Example 1. Was evaluated. The results are shown in Table 1.
- Example 8 A release film was prepared in the same manner as in Example 1 except that the resin weight ratio in the resin composition used for the release layer was as shown in Table 1, and Example 1 was applied to the release film. Similar evaluations were made. The results are shown in Table 1.
- Example 9 A release film was prepared in the same manner as in Example 1 except that the resin weight ratio in the resin composition used for the cushion layer was as shown in Table 1, and the release film was the same as in Example 1. Was evaluated. The results are shown in Table 1.
- Example 10 A release film was prepared in the same manner as in Example 1 except that the resin weight ratio in the resin composition used for the cushion layer was as shown in Table 1, and the release film was the same as in Example 1. Was evaluated. The results are shown in Table 1.
- Example 11 A release film was prepared in the same manner as in Example 1 except that the resin weight ratio in the resin composition used for the cushion layer was as shown in Table 1, and the release film was the same as in Example 1. Was evaluated. The results are shown in Table 1.
- Example 12 A release film was prepared in the same manner as in Example 1 except that the resin weight ratio in the resin composition used for the cushion layer was as shown in Table 1, and the release film was the same as in Example 1. Was evaluated. The results are shown in Table 1.
- Example 13 A release film was prepared in the same manner as in Example 1 except that the resin weight ratio in the resin composition used for the cushion layer was as shown in Table 1, and the release film was the same as in Example 1. Was evaluated. The results are shown in Table 1.
- Example 1 A release film was prepared in the same manner as in Example 1 except that the resin weight ratio in the resin composition used for the release layer was as shown in Table 1, and Example 1 was applied to the release film. Similar evaluations were made. The results are shown in Table 1.
- Example 2 A release film was prepared in the same manner as in Example 1 except that the cushion layer and the second release layer were eliminated and the thickness of the first release layer was 120 ⁇ m. Was evaluated. The results are shown in Table 1.
- the release film according to the present invention can prevent adhesion of the release layer to the circuit-exposed film and the CL film as well as the conventional PBT release film, CL adhesive, and adhesion between the release layers, The amount of the adhesive between the circuit exposed film and the CL film that oozes out to the circuit pattern portion can be reduced as compared with the conventional PBT release film. It is particularly useful as a release film that is used to wrap a coverlay film in order to bring the CL film into close contact with the concavo-convex portion of the circuit pattern when the CL film is adhered.
- release films include (1) those used in the production of laminates, (2) those used in the production of advanced composite materials, and (3) those used in the production of sports and leisure goods.
- the release film according to the present invention is also useful as these release films.
- the release film used in the production of the laminated board is a press-molding process for producing a multilayer printed board, in order to prevent adhesion between the printed board and the separator plate or other printed boards. It is an intervening film.
- the release film used when manufacturing the advanced composite material product is, for example, a film used when manufacturing various products by curing a prepreg made of glass cloth, carbon fiber or aramid fiber and an epoxy resin.
- the release film used in the production of sports / leisure goods is, for example, the production of fishing rods, golf club shafts, windsurfing poles, etc., when the prepreg is wound into a cylindrical shape and cured in an autoclave. It is a film wound around.
- This release film is also useful as a release film for adhesive tapes, double-sided tapes, masking tapes, labels, seals, stickers, poultices for skin application, and the like.
- This release film is also useful as a process film used in the production of printed circuit boards, ceramic electronic parts, thermosetting resin products, decorative boards and the like.
- the process film here refers to a metal in the molding process so that metal plates and resins do not adhere to each other when manufacturing printed circuit boards, ceramic electronic parts, thermosetting resin products, decorative boards, etc. It refers to a film that is sandwiched between boards or between resins, and is particularly suitable for use in the production of laminated boards, the production of flexible printed boards, the production of advanced composite materials, and the production of sports and leisure goods.
- This release film is also useful as a packaging film.
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
本願は、2012年9月18日に、日本に出願された特願2012-204660号に基づき優先権を主張し、その内容をここに援用する。
(1)ポリブチレンテレフタレート系樹脂および滑剤微粒子とを含む離型層とクッション層を有する離型フィルムであって、前記滑剤微粒子がエステル基と無極性基を有する事を特徴とする離型フィルム。
(2)前記滑剤微粒子と前離型層の溶解度パラメーターの差が8.0以下である上記(1)に記載の離型フィルム。
(3)前記滑剤微粒子の平均粒径が0.05μm以上10.0μm以下である上記(1)または(2)に記載の離型フィルム。
(4)前記滑剤微粒子の添加量が、0.01wt%以上5wt%以下である上記(1)~(3)いずれかに記載の離型フィルム。
(5)前記離型層の表面自由Eが50mJ/m2以下である上記(1)~(4)いずれかに記載の離型フィルム。
(6)前記クッション層がポリエステル系樹脂とポリオレフィン系樹脂を有するものである上記(1)~(5)いずれかに記載の離型フィルム。
(7)前記クッション層のポリエステル系樹脂がポリブチレンテレフタレートである上記(6)に記載の離型フィルム。
(8)前記クッション層のポリオレフィン系樹脂がマレイン酸変性ポリエチレン、ポリプロピレン、メタアクリル酸メチル共重合体のいずれか1つ以上である上記(6)または(7)に記載の離型フィルム。
(9)前記離型フィルムがクッション層の両側に離型層を有する2種3層構成である上記(1)~(8)いずれかに記載の離型フィルム。
離型フィルムの厚みを、前記下限範囲よりも小さくした場合は、FPCとの離型性が不足し、FPC回路面に樹脂残りが発生する可能性がある。一方、前記上限値よりも大きくした場合は、FPC回路部への埋め込み性が不足し、CL接着剤のシミダシ量が多くなる可能性がある。
以下、これらの層それぞれについて詳述する。
1.離型層
離型層110は、ポリブチレンテレフタレートおよびエステル基と無極性基を有する滑剤微粒子を含むものである。
エステル基はポリブチレンテレフタレートと相溶性を有するものであり、滑剤微粒子がエステル基を有しない場合、相溶していない滑剤微粒子が加熱プレスにより欠落し、FPC表面に転写され、汚染される可能性がある。
一方で、滑剤微粒子の無極性基は、エステル基に比べ、ポリブチレンテレフタレートとの相溶性が低い。このため、滑剤微粒子中の無極性基部分が、離型層110の表面近傍に偏在し、または露出することにより、離型層110の表面自由エネルギーが低下し、離型フィルム100の離型性向上に寄与するものである。
δ=(E/V)1/2
E:モル凝集エネルギー V:モル容積
前記溶解度パラメーターの差が前記範囲上限値よりも大きくした場合、前記離型層樹脂との相溶性が不足し、相溶していない滑剤微粒子が加熱プレスにより欠落し、FPC表面に転写され、汚染する可能性がある。
前記平均粒径が、前記範囲下限値よりも低くした場合、FPCとの離型性が不足し、回路表面への樹脂残りが発生する可能性がある。一方、前記平均粒径が、前記範囲上限値よりも高くした場合、離型層樹脂の表面状態が悪化し、熱プレスにより、その表面形状が転写され、FPC表面も悪化する可能性がある。
離型層110の厚みを前記下限範囲より小さくした場合は、FPCとの離型性が不足し、回路表面への樹脂残りが発生する可能性がある。前記上限値よりも高くした場合は、CL接着剤のシミダシ量が悪化する可能性がある。
また、離型層の表面自由エネルギーは、50mJ/m2以下であることが好ましく、45mJ/m2以下であることがさらに好ましく、40mJ/m2以下であることが最も好ましい。
本発明の離型フィルム100は、図1に示すようにクッション層120を備えることにより、更に被着体との密着を好適なものとすることができる。クッション層120には、クッション性を示す適度な柔軟性を有するものであれば公知の樹脂を用いることができる。具体的な例としては、例えば、ポリエチレン、ポリプロプレン等のαオレフィン系重合体、及びエチレン、プロピレン、ブテン、ペンテン、ヘキセン、メチルペンテン等を共重合体成分として有するαオレフィン系共重合体等のポリオレフィン系樹脂、ポリエーテルスルホン、ポリフェニレンスルフィド等のエンジニアリングプラスチックス系樹脂、ポリブチレンテレフタレート等のポリエステル樹脂が挙げられ、これらを単独あるいは複数併用してもよい。
なお、(メタ)アクリル酸とはアクリル酸とメタクリル酸の総称である。
中でも、エチレンとメタクリル酸との共重合体とポリプロピレンとマレイン酸変性ポリエチレンのいずれか1つ以上を含むことが望ましく、すべて含むことが更に望ましい。エチレンと(メタ)アクリル酸との共重合体を含む事でクッション性が増し、ポリプロピレンを含む事でクッション層のフィルム端面からの樹脂の流れ出しを抑制でき、マレイン酸変性ポリエチレンを含む事で離型層との接着強度を向上およびポリエステル系樹脂との相溶性を向上することができる。
なお、このクッション層形成樹脂には、必要に応じて、本発明の趣旨を損ねない範囲で、その他、上述のエラストマー樹脂や添加剤が配合されてもかまわない。
本実施の形態に係る図1の離型フィルム100は、共押出法や押出ラミネート法等の方法で製造することができる。
(Hot-Hotプレス)
本発明の実施の形態に係る離型フィルム100は、回路露出フィルムへのCLフィルム接着時にCLフィルムを回路パターンの凹凸部に密着させるためにCLフィルムを包むように配置され、回路露出フィルム及びCLフィルムと共にプレス装置により加圧される。
具体的には、離型フィルム100は、図4に示されるように、回路露出フィルムとCLフィルムとが接着剤により仮止めされたもの340を、離型フィルム100の離型層が対向するように挟み込んだ後、ゴムクッション320で挟み込まれ、熱盤300でプレスされる。なお、その熱盤300による加熱方法としては、図5に示される通りである。つまり、熱盤300は170~200℃まで昇温されており、1~3分間加圧される。このときのプレス圧力は3~15MPaで適宜調節される。
(Cold-Hotプレス)
本発明の実施の形態に係る離型フィルム100は、回路露出フィルムへのCLフィルム接着時にCLフィルムを回路パターンの凹凸部に密着させるためにCLフィルムを包むように配置され、回路露出フィルム及びCLフィルムと共にプレス装置により加圧される。具体的には、離型フィルム100は、図4に示されるように、回路露出フィルムとCLフィルムとが接着剤により仮止めされたもの340を、離型フィルム100の離型層110が対向するように挟み込んだ後、テフロン(登録商標)シート330、ゴムクッション320及びステンレス板310で順次挟み込まれ、熱盤300でプレスされる(図4の白抜矢印参照)。なお、その熱盤300による加熱方法としては、図6に示される通りである。つまり、熱盤300は、加圧を開始してから15分で常温から170℃まで昇温された後、35分間その温度に維持される。その後、熱盤300は、50分かけて170℃から常温まで冷却される。なお、熱盤300による加圧は、0分の時点で開始され、100分の時点で開放される。なお、このときのプレス圧力は、5~15MPaで適宜調節される。
(A)
先の実施の形態では、クッション層120の片側にのみ離型層110が設けられる離型フィルム100が紹介されたが、図2に示されるように、クッション層120の両側に離型層110a、110bが設けられる離型フィルム100Aも本発明の一実施の形態に含まれる。なお、以下、符号110aの離型層を「第1離型層」と称し、符号110bの離型層を「第2離型層」と称する。
1.離型フィルムの製造
第1及び第2離型層には以下の原料を表1に示す重量比で含む樹脂組成物を用いた。
ポリブチレンテレフタレート:CHANG CHUN PLASTICS CO.,LTD.1100-211S
滑剤微粒子:クラリアント・ジャパン株式会社製リコワックスE(モンタン酸エステルワックス)
クッション層には以下の原料を表1に示す重量比で含む樹脂組成物を用いた。
エチレン-メタアクリル酸メチル共重合体:メタアクリル酸メチル誘導単位含有量5重量% 住友化学(株)製アクリフト(登録商標)WD106
ポリプロピレン:住友化学(株)製ノーブレンFH1016
マレイン酸変性ポリエチレン:三菱化学(株)製モディックF515A
ポリブチレンテレフタレート:CHANG CHUN PLASTICS CO.,LTD.1100-211S
共押出法を利用して、クッション層の表裏に第1離型層および第2離型層を有する離型フィルム(図2参照)を作製した。
上記作製方法により得られた離型フィルムを用い、熱盤/ゴムクッション/離型フィルム/CL(有沢製作所製のCVタイプのCL)/FPC/離型フィルム/ゴムクッション/熱盤の順となるようなプレス構成にて、プレスラミネート機によりプレスした。プレスにあたっては、熱盤温度を185℃まで昇温させ、10MPaの加圧条件下で、3分間加圧した。
その後、プレスサンプルについて以下の項目と基準で評価を行なった。なお、下記評価は、社団法人日本電子回路工業会(以下、JPCAと略す)のJPCA規格(デザインガイドマニュアル 片面及び両面フレキシブルプリント配線版 JPCA-DG02)に準拠し、以下のような項目と基準で行なった。
離型性:離型性1は離型フィルムのFPCからの離型性を評価した。具体的には、「JPCA規格 7.5.7.1項表面の付着物」に準拠し、CLプレスラミネート後の離型フィルムのFPCからの剥離状態を目視にて評価した。
評価サンプル数を各n=100として評価を行い、FPC表面に樹脂残りが発生したものの数が評価サンプル数の5%未満のものを合格とした。
◎:破れ発生率 3%未満
○:破れ発生率 3%以上5%未満
×:破れ発生率 5%以上
回路基板にCLの接着剤層の染み出しがあるか否かを「JPCA規格の7.5.3.6項カバーレイの接着剤の流れおよびカバーコートのにじみ」に準拠し、回路端子部への染み出し量を評価した。染み出し量が150μm未満を合格とした。
◎:染み出し量 100μm未満
○:染み出し量 100μm以上150μm未満
×:染み出し量 150μm以上
◎:ボイド発生率 1.0%未満
○:ボイド発生率 1.0%以上2.0%未満
×:ボイド発生率 2.0%以上
◎:染み出し長さ 1mm未満
○:染み出し長さ 1mm以上3mm未満
×:染み出し長さ 3mm以上
◎:外観不良なし
○:一部分にのみ外観不良あり
×:全面に外観不良あり
離型層に用いられる樹脂組成物中の樹脂重量比を表1に示されるものとした以外は実施例1と同様にして離型フィルムを作製し、その離型フィルムに対して実施例1と同様の評価を行った。結果を表1に示す。
離型層に用いられる樹脂組成物中の樹脂重量比を表1に示されるものとした以外は実施例1と同様にして離型フィルムを作製し、その離型フィルムに対して実施例1と同様の評価を行った。結果を表1に示す。
離型層に用いられる樹脂組成物中の樹脂重量比を表1に示されるものとした以外は実施例1と同様にして離型フィルムを作製し、その離型フィルムに対して実施例1と同様の評価を行った。結果を表1に示す。
離型層に用いられる樹脂組成物中の樹脂重量比を表1に示されるものとした以外は実施例1と同様にして離型フィルムを作製し、その離型フィルムに対して実施例1と同様の評価を行った。結果を表1に示す。
クッション層に用いられる樹脂組成物中の樹脂重量比を表1に示されるものとした以外は実施例1と同様にして離型フィルムを作製し、その離型フィルムに対して実施例1と同様の評価を行った。結果を表1に示す。
クッション層に用いられる樹脂組成物中の樹脂重量比を表1に示されるものとした以外は実施例1と同様にして離型フィルムを作製し、その離型フィルムに対して実施例1と同様の評価を行った。結果を表1に示す。
離型層に用いられる樹脂組成物中の樹脂重量比を表1に示されるものとした以外は実施例1と同様にして離型フィルムを作製し、その離型フィルムに対して実施例1と同様の評価を行った。結果を表1に示す。
クッション層に用いられる樹脂組成物中の樹脂重量比を表1に示されるものとした以外は実施例1と同様にして離型フィルムを作製し、その離型フィルムに対して実施例1と同様の評価を行った。結果を表1に示す。
クッション層に用いられる樹脂組成物中の樹脂重量比を表1に示されるものとした以外は実施例1と同様にして離型フィルムを作製し、その離型フィルムに対して実施例1と同様の評価を行った。結果を表1に示す。
クッション層に用いられる樹脂組成物中の樹脂重量比を表1に示されるものとした以外は実施例1と同様にして離型フィルムを作製し、その離型フィルムに対して実施例1と同様の評価を行った。結果を表1に示す。
クッション層に用いられる樹脂組成物中の樹脂重量比を表1に示されるものとした以外は実施例1と同様にして離型フィルムを作製し、その離型フィルムに対して実施例1と同様の評価を行った。結果を表1に示す。
クッション層に用いられる樹脂組成物中の樹脂重量比を表1に示されるものとした以外は実施例1と同様にして離型フィルムを作製し、その離型フィルムに対して実施例1と同様の評価を行った。結果を表1に示す。
離型層に用いられる樹脂組成物中の樹脂重量比を表1に示されるものとした以外は実施例1と同様にして離型フィルムを作製し、その離型フィルムに対して実施例1と同様の評価を行った。結果を表1に示す。
クッション層および第2離型層を無くし、第1離型層の厚みを120μmにした以外は実施例1と同様にして離型フィルムを作製し、その離型フィルムに対して実施例1と同様の評価を行った。結果を表1に示す。
この離型フィルムは、包装フィルムしても有用である。
110 離型層
110a 第1離型層(離型層)
110b 第2離型層(離型層)
120 クッション層
510 ダイス
520 タッチロール
530 第1ロール
540 第2ロール
300 熱盤
310 ステンレス板
320 ゴムクッション
330 テフロン(登録商標)シート
340 回路露出フィルムとCLフィルムとが接着剤により仮止めされたもの
Claims (10)
- ポリブチレンテレフタレート系樹脂および滑剤微粒子とを含む離型層とクッション層を有する離型フィルムであって、前記滑剤微粒子がエステル基と無極性基を有する事を特徴とする離型フィルム。
- 前記滑剤微粒子と前離型層の溶解度パラメーターの差が8.0以下である請求項1に記載の離型フィルム。
- 前記滑剤微粒子の平均粒径が0.05μm以上、10.0μm以下である請求項1または2に記載の離型フィルム。
- 前記滑剤微粒子の添加量が、0.01wt%以上、5wt%以下である請求項1ないし3いずれか1項に記載の離型フィルム。
- 前記離型層の表面自由Eが50mJ/m2以下である請求項1ないし4いずれか1項に記載の離型フィルム。
- 前記クッション層がポリエステル系樹脂とポリオレフィン系樹脂を有するものである請求項1ないし5いずれか1項に記載の離型フィルム。
- 前記クッション層のポリエステル系樹脂がポリブチレンテレフタレートである請求項6に記載の離型フィルム。
- 前記クッション層のポリオレフィン系樹脂がマレイン酸変性ポリエチレン、ポリプロピレン、エチレンとメタクリル酸との共重合体のいずれか1つ以上である請求項6または7に記載の離型フィルム。
- 前記離型フィルムがクッション層の両側に前記離型層を有する2種3層構成である請求項1ないし8のいずれか1項に記載の離型フィルム。
- 前記離型フィルムが、前記クッション層の片側に第1離型層を有し、前記クッション層の反対側に第2離型層が設けられており、第1離形層は前記離形層であり、第2離形層は、ポリプロピレン樹脂又は、ポリスチレン系樹脂を主成分とする樹脂から形成されることを特徴とする請求項1ないし8のいずれか1項に記載の離型フィルム。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014536740A JP6222095B2 (ja) | 2012-09-18 | 2013-09-05 | 離型フィルム |
CN201380048036.0A CN104640700A (zh) | 2012-09-18 | 2013-09-05 | 脱模膜 |
KR1020157005686A KR20150058179A (ko) | 2012-09-18 | 2013-09-05 | 이형 필름 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012-204660 | 2012-09-18 | ||
JP2012204660 | 2012-09-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014045888A1 true WO2014045888A1 (ja) | 2014-03-27 |
Family
ID=50341205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/073962 WO2014045888A1 (ja) | 2012-09-18 | 2013-09-05 | 離型フィルム |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP6222095B2 (ja) |
KR (1) | KR20150058179A (ja) |
CN (1) | CN104640700A (ja) |
TW (1) | TWI609781B (ja) |
WO (1) | WO2014045888A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015202662A (ja) * | 2014-04-16 | 2015-11-16 | 住友ベークライト株式会社 | 離型フィルムの製造方法 |
WO2015178365A1 (ja) * | 2014-05-22 | 2015-11-26 | 帝人株式会社 | 離形フィルム |
JP2015214028A (ja) * | 2014-04-21 | 2015-12-03 | 三井化学東セロ株式会社 | 多層離型フィルム |
JP2016168688A (ja) * | 2015-03-11 | 2016-09-23 | 住友ベークライト株式会社 | 離型フィルム |
JP2019043135A (ja) * | 2017-08-31 | 2019-03-22 | 積水化学工業株式会社 | 離型フィルム |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018037991A1 (ja) * | 2016-08-25 | 2018-03-01 | 東レフィルム加工株式会社 | 離型フィルム |
CN110461594B (zh) * | 2017-03-22 | 2021-02-12 | 住友电木株式会社 | 脱模膜及挠性印刷电路基板的制造方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006104361A (ja) * | 2004-10-06 | 2006-04-20 | Toray Ind Inc | ポリエステル樹脂組成物 |
JP2007084760A (ja) * | 2005-09-26 | 2007-04-05 | Taihei Kagaku Seihin Kk | 離型フィルムおよびその製造方法 |
JP2008105319A (ja) * | 2006-10-26 | 2008-05-08 | Sekisui Chem Co Ltd | 多層離型フィルム |
JP2009066984A (ja) * | 2007-09-14 | 2009-04-02 | Mitsubishi Engineering Plastics Corp | 熱プレス成形用離型フィルム |
JP2010209234A (ja) * | 2009-03-11 | 2010-09-24 | Wintech Polymer Ltd | 芳香族ポリエステル組成物 |
JP2010234794A (ja) * | 2009-03-10 | 2010-10-21 | Dainippon Printing Co Ltd | 離型フィルムおよびその製造方法 |
JP2011230363A (ja) * | 2010-04-27 | 2011-11-17 | Sumitomo Bakelite Co Ltd | 離型フィルム |
JP2012135935A (ja) * | 2010-12-27 | 2012-07-19 | Sumitomo Bakelite Co Ltd | 離型フィルム |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2051823A (en) * | 1979-06-19 | 1981-01-21 | Ici Ltd | Polyethyleneterephthalates |
JP4786657B2 (ja) * | 2005-05-13 | 2011-10-05 | 三井化学株式会社 | 4−メチル−1−ペンテン系重合体を含む積層体およびこれからなる離型フィルム |
JP5354858B2 (ja) * | 2006-05-09 | 2013-11-27 | 株式会社Adeka | スルホンアミド化合物の金属塩を含有するポリエステル樹脂組成物 |
-
2013
- 2013-09-05 WO PCT/JP2013/073962 patent/WO2014045888A1/ja active Application Filing
- 2013-09-05 CN CN201380048036.0A patent/CN104640700A/zh active Pending
- 2013-09-05 JP JP2014536740A patent/JP6222095B2/ja active Active
- 2013-09-05 KR KR1020157005686A patent/KR20150058179A/ko not_active Application Discontinuation
- 2013-09-10 TW TW102132655A patent/TWI609781B/zh active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006104361A (ja) * | 2004-10-06 | 2006-04-20 | Toray Ind Inc | ポリエステル樹脂組成物 |
JP2007084760A (ja) * | 2005-09-26 | 2007-04-05 | Taihei Kagaku Seihin Kk | 離型フィルムおよびその製造方法 |
JP2008105319A (ja) * | 2006-10-26 | 2008-05-08 | Sekisui Chem Co Ltd | 多層離型フィルム |
JP2009066984A (ja) * | 2007-09-14 | 2009-04-02 | Mitsubishi Engineering Plastics Corp | 熱プレス成形用離型フィルム |
JP2010234794A (ja) * | 2009-03-10 | 2010-10-21 | Dainippon Printing Co Ltd | 離型フィルムおよびその製造方法 |
JP2010209234A (ja) * | 2009-03-11 | 2010-09-24 | Wintech Polymer Ltd | 芳香族ポリエステル組成物 |
JP2011230363A (ja) * | 2010-04-27 | 2011-11-17 | Sumitomo Bakelite Co Ltd | 離型フィルム |
JP2012135935A (ja) * | 2010-12-27 | 2012-07-19 | Sumitomo Bakelite Co Ltd | 離型フィルム |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015202662A (ja) * | 2014-04-16 | 2015-11-16 | 住友ベークライト株式会社 | 離型フィルムの製造方法 |
JP2015214028A (ja) * | 2014-04-21 | 2015-12-03 | 三井化学東セロ株式会社 | 多層離型フィルム |
WO2015178365A1 (ja) * | 2014-05-22 | 2015-11-26 | 帝人株式会社 | 離形フィルム |
JP2015221849A (ja) * | 2014-05-22 | 2015-12-10 | 帝人株式会社 | 離形フィルム |
JP2016168688A (ja) * | 2015-03-11 | 2016-09-23 | 住友ベークライト株式会社 | 離型フィルム |
JP2019043135A (ja) * | 2017-08-31 | 2019-03-22 | 積水化学工業株式会社 | 離型フィルム |
JP7277092B2 (ja) | 2017-08-31 | 2023-05-18 | 積水化学工業株式会社 | 離型フィルム |
Also Published As
Publication number | Publication date |
---|---|
TWI609781B (zh) | 2018-01-01 |
JPWO2014045888A1 (ja) | 2016-08-18 |
TW201420340A (zh) | 2014-06-01 |
CN104640700A (zh) | 2015-05-20 |
JP6222095B2 (ja) | 2017-11-01 |
KR20150058179A (ko) | 2015-05-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6222095B2 (ja) | 離型フィルム | |
WO2018173683A1 (ja) | 離型フィルムおよびフレキシブルプリント回路基板の製造方法 | |
WO2011122023A1 (ja) | 離型フィルム | |
JP5999146B2 (ja) | 離型フィルム | |
JP5557152B2 (ja) | 積層フィルム | |
KR101745038B1 (ko) | 적층 필름 | |
JP5685930B2 (ja) | 離型フィルム | |
JP5353217B2 (ja) | 離型フィルム並びにそれを用いた接着方法及び回路基板の製造方法 | |
JP5765018B2 (ja) | 離型フィルム | |
JP6075397B2 (ja) | 離型フィルム | |
JP6380727B1 (ja) | 離型フィルムおよびフレキシブルプリント回路基板の製造方法 | |
JP5652743B2 (ja) | 離型フィルム | |
JP2011212848A (ja) | 離型フィルム | |
JP5581717B2 (ja) | 積層フィルム | |
JP2013180457A (ja) | 離型フィルム | |
JP2012021109A (ja) | 離型フィルム | |
JP5593785B2 (ja) | 離型フィルム | |
JP5488809B2 (ja) | 積層フィルム |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13839354 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2014536740 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 20157005686 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 13839354 Country of ref document: EP Kind code of ref document: A1 |