WO2022220204A1 - Liquid-crystalline polyester-based resin composition, liquid-crystalline polyester-based film using said composition, metal laminated film using said film, and circuit board - Google Patents
Liquid-crystalline polyester-based resin composition, liquid-crystalline polyester-based film using said composition, metal laminated film using said film, and circuit board Download PDFInfo
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- WO2022220204A1 WO2022220204A1 PCT/JP2022/017447 JP2022017447W WO2022220204A1 WO 2022220204 A1 WO2022220204 A1 WO 2022220204A1 JP 2022017447 W JP2022017447 W JP 2022017447W WO 2022220204 A1 WO2022220204 A1 WO 2022220204A1
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- Prior art keywords
- crystalline polyester
- liquid crystalline
- thermoplastic liquid
- film
- melting point
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- 229920000728 polyester Polymers 0.000 title claims abstract description 149
- 229920001225 polyester resin Polymers 0.000 title claims abstract description 41
- 239000000203 mixture Substances 0.000 title claims abstract description 37
- 239000011342 resin composition Substances 0.000 title claims abstract description 33
- 229910052751 metal Inorganic materials 0.000 title claims description 31
- 239000002184 metal Substances 0.000 title claims description 31
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 141
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 141
- 238000002844 melting Methods 0.000 claims abstract description 90
- 230000008018 melting Effects 0.000 claims abstract description 90
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000001125 extrusion Methods 0.000 claims abstract description 40
- 239000004645 polyester resin Substances 0.000 claims abstract description 33
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 claims abstract description 23
- KAUQJMHLAFIZDU-UHFFFAOYSA-N 6-Hydroxy-2-naphthoic acid Chemical compound C1=C(O)C=CC2=CC(C(=O)O)=CC=C21 KAUQJMHLAFIZDU-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims description 133
- 239000004973 liquid crystal related substance Substances 0.000 claims description 82
- 239000000155 melt Substances 0.000 claims description 57
- 229920006267 polyester film Polymers 0.000 claims description 40
- 239000005001 laminate film Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims 1
- VCCBEIPGXKNHFW-UHFFFAOYSA-N biphenyl-4,4'-diol Chemical group C1=CC(O)=CC=C1C1=CC=C(O)C=C1 VCCBEIPGXKNHFW-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000178 monomer Substances 0.000 description 31
- 238000000034 method Methods 0.000 description 17
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 14
- 229920000106 Liquid crystal polymer Polymers 0.000 description 10
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 10
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 7
- -1 polyethylene terephthalate Polymers 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 125000001931 aliphatic group Chemical group 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000001747 exhibiting effect Effects 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 150000004984 aromatic diamines Chemical class 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical compound C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910002065 alloy metal Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 229920006038 crystalline resin Polymers 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000368 destabilizing effect Effects 0.000 description 1
- IMHDGJOMLMDPJN-UHFFFAOYSA-N dihydroxybiphenyl Natural products OC1=CC=CC=C1C1=CC=CC=C1O IMHDGJOMLMDPJN-UHFFFAOYSA-N 0.000 description 1
- 208000028659 discharge Diseases 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000001659 ion-beam spectroscopy Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001955 polyphenylene ether Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
- C08L67/03—Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the carboxyl- and the hydroxy groups directly linked to aromatic rings
Abstract
Description
(1)熱可塑性液晶ポリエステル(A)と熱可塑性液晶ポリエステル(B)とを含む液晶ポリエステル系樹脂組成物であって、前記熱可塑性液晶ポリエステル(A)と前記熱可塑性液晶ポリエステル(B)との融点の差が5℃以上95℃以下であり、前記熱可塑性液晶ポリエステル(A)は、p-ヒドロキシ安息香酸に由来する構成単位と6-ヒドロキシ-2-ナフトエ酸に由来する構成単位とを含み、前記熱可塑性液晶ポリエステル(B)は、p-ヒドロキシ安息香酸に由来する構成単位と6-ヒドロキシ-2-ナフトエ酸に由来する構成単位とを含む、或いはp-ヒドロキシ安息香酸に由来する構成単位と4,4’―ジヒドロキシビフェニルに由来する構成単位とを含むいずれかであり、前記熱可塑性液晶ポリエステル(A)と前記熱可塑性液晶ポリエステル(B)との配合割合が(A):(B)=40~98重量%:2~60重量%であり、インフレーション押出成形に用いることを特徴とする液晶ポリエステル系樹脂組成物が提供され、
(2)せん断速度122sec-1の条件下で測定した前記熱可塑性液晶ポリエステル(A)の融点における溶融粘度(μTm)とせん断速度122sec-1の条件下で測定した前記熱可塑性液晶ポリエステル(A)の融点+10℃における溶融粘度(μTm+10)との溶融粘度比R122(μTm/μTm+10)が3.4未満であることを特徴とする(1)に記載の液晶ポリエステル系樹脂組成物が提供され、
(3)せん断速度1216sec-1の条件下で測定した前記熱可塑性液晶ポリエステル(A)の融点における溶融粘度(μTm)とせん断速度1216sec-1の条件下で測定した前記熱可塑性液晶ポリエステル(A)の融点+10℃における溶融粘度(μTm+10)との溶融粘度比R1216(μTm/μTm+10)に対する、せん断速度122sec-1の条件下で測定した前記熱可塑性液晶ポリエステル(A)の融点における溶融粘度(μTm)とせん断速度122sec-1の条件下で測定した前記熱可塑性液晶ポリエステル(A)の融点+10℃における溶融粘度(μTm+10)との溶融粘度比R122(μTm/μTm+10)の比(R122/R1216)の値が1.5以下であることを特徴とする(1)に記載の液晶ポリエステル系樹脂組成物が提供され、
(4)せん断速度122~2430sec-1の範囲内において、それぞれのせん断速度の条件下で測定した前記熱可塑性液晶ポリエステル(A)の融点における溶融粘度(μTm)と前記熱可塑性液晶ポリエステル(A)の融点+10℃における溶融粘度R(μTm+10)との溶融粘度比(μTm/μTm+10)の最大値と最小値との差(バラつき)が1.2未満であることを特徴とする(1)に記載の液晶ポリエステル系樹脂組成物が提供され、
(5)せん断速度6~2430sec-1の範囲内において、それぞれのせん断速度の条件下で測定した前記熱可塑性液晶ポリエステル(A)の融点における溶融粘度(μTm)と前記熱可塑性液晶ポリエステル(A)の融点+10℃における溶融粘度(μTm+10)との溶融粘度比R(μTm/μTm+10)の最大値と最小値との差(バラつき)が3.4未満であることを特徴とする(1)に記載の液晶ポリエステル系樹脂組成物が提供され、
(6)前記熱可塑性液晶ポリエステル(A)の融点は、300℃以上であり、前記熱可塑性液晶ポリエステル(B)の融点は、300℃未満であることを特徴とする(1)に記載の液晶ポリエステル系樹脂組成物が提供され、
(7)前記熱可塑性液晶ポリエステル(A)と前記熱可塑性液晶ポリエステル(B)との配合割合が(A):(B)=60~96重量%:4~40重量%であることを特徴とする(1)に記載の液晶ポリエステル系樹脂組成物が提供され、
(8)(1)乃至(7)の何れかに記載の樹脂組成物からなることを特徴とする液晶ポリエステル系フィルムが提供され、
(9)フィルムの流れ方向の引張強度をF(MD)、フィルム幅方向の引張強度F(TD)とするとき、0.75≦F(TD)/F(MD)≦1.25であることを特徴とする(8)に記載の液晶ポリエステル系フィルムが提供され、
(10)インフレーション押出成形法により製膜することを特徴とする(9)に記載の液晶ポリエステル系フィルムの製造方法が提供され、
(11)(9)に記載の液晶ポリエステル系フィルムの片面又は両面に金属層がラミネートされていることを特徴とする金属ラミネートフィルムが提供され、
(12)少なくとも1つの導体層と、(9)に記載の熱可塑性液晶ポリエステル系フィルムとを備える回路基板が提供される。 According to the invention,
(1) A liquid crystalline polyester resin composition containing a thermoplastic liquid crystalline polyester (A) and a thermoplastic liquid crystalline polyester (B), wherein the thermoplastic liquid crystalline polyester (A) and the thermoplastic liquid crystalline polyester (B) The thermoplastic liquid crystal polyester (A) has a melting point difference of 5° C. or more and 95° C. or less, and contains a structural unit derived from p-hydroxybenzoic acid and a structural unit derived from 6-hydroxy-2-naphthoic acid. , The thermoplastic liquid crystal polyester (B) contains a structural unit derived from p-hydroxybenzoic acid and a structural unit derived from 6-hydroxy-2-naphthoic acid, or a structural unit derived from p-hydroxybenzoic acid and a structural unit derived from 4,4'-dihydroxybiphenyl, and the blending ratio of the thermoplastic liquid crystalline polyester (A) and the thermoplastic liquid crystalline polyester (B) is (A):(B) = 40 to 98% by weight: 2 to 60% by weight, providing a liquid crystalline polyester resin composition characterized by being used for inflation extrusion molding,
(2) The melt viscosity (μ Tm ) at the melting point of the thermoplastic liquid crystalline polyester (A) measured under the conditions of a shear rate of 122 sec −1 and the thermoplastic liquid crystalline polyester (A) measured under the conditions of a shear rate of 122 sec −1 ) and the melt viscosity (μ Tm+10 ) at the melting point +10° C. R 122 (μ Tm /μ Tm+10 ) is less than 3.4. is provided and
(3) The melt viscosity (μ Tm ) at the melting point of the thermoplastic liquid crystalline polyester (A) measured under the conditions of a shear rate of 1216 sec −1 and the thermoplastic liquid crystalline polyester (A) measured under the conditions of a shear rate of 1216 sec −1 ) to the melt viscosity (μ Tm+10 ) at the melting point + 10 ° C. R 1216 (μ Tm /μ Tm+10 ) at the melting point of the thermoplastic liquid crystalline polyester (A) measured under the condition of a shear rate of 122 sec -1 Melt viscosity ratio R 122 (μ Tm /μ Tm +10) of the melt viscosity (μ Tm ) and the melt viscosity (μ Tm+10 ) at the melting point + 10 ° C. of the thermoplastic liquid crystalline polyester (A) measured under the condition of a shear rate of 122 sec -1 ) having a ratio (R 122 /R 1216 ) of 1.5 or less.
(4) Within the range of shear rate 122 to 2430 sec -1 , the melt viscosity (μ Tm ) at the melting point of the thermoplastic liquid crystalline polyester (A) measured under the conditions of each shear rate and the thermoplastic liquid crystalline polyester (A The difference (variation) between the maximum value and the minimum value of the melt viscosity ratio (μ Tm /μ Tm+10 ) to the melt viscosity R (μ Tm+10 ) at the melting point + 10 ° C. is less than 1.2 ( 1) is provided with the liquid crystalline polyester-based resin composition,
(5) Within the range of shear rate 6 to 2430 sec -1 , the melt viscosity (μ Tm ) at the melting point of the thermoplastic liquid crystalline polyester (A) measured under the conditions of each shear rate and the thermoplastic liquid crystalline polyester (A The difference (variation) between the maximum value and the minimum value of the melt viscosity ratio R (μ Tm /μ Tm+10 ) to the melt viscosity (μ Tm+10 ) at the melting point + 10 ° C. of +10 ° C. is less than 3.4 ( 1) is provided with the liquid crystalline polyester-based resin composition,
(6) The liquid crystal according to (1), wherein the thermoplastic liquid crystalline polyester (A) has a melting point of 300° C. or more and the thermoplastic liquid crystalline polyester (B) has a melting point of less than 300° C. A polyester resin composition is provided,
(7) The blending ratio of the thermoplastic liquid crystal polyester (A) and the thermoplastic liquid crystal polyester (B) is (A):(B) = 60 to 96% by weight: 4 to 40% by weight. The liquid crystal polyester resin composition according to (1) is provided,
(8) A liquid crystal polyester film characterized by comprising the resin composition according to any one of (1) to (7) is provided,
(9) 0.75 ≤ F (TD) / F (MD) ≤ 1.25, where F (MD) is the tensile strength in the machine direction of the film and F (TD) is the tensile strength in the width direction of the film. The liquid crystalline polyester film according to (8) is provided,
(10) A method for producing a liquid crystal polyester film according to (9) is provided, wherein the film is formed by an inflation extrusion method,
(11) A metal laminate film is provided, wherein a metal layer is laminated on one side or both sides of the liquid crystal polyester film according to (9),
(12) Provided is a circuit board comprising at least one conductor layer and the thermoplastic liquid crystal polyester film described in (9).
本発明の液晶ポリエステル系樹脂組成物は、融点が高く耐熱性に優れる熱可塑性液晶ポリエステル(A)と熱可塑性液晶ポリエステル(A)よりも融点が低い熱可塑性液晶ポリエステル(B)とを含む樹脂組成物からなるものであり、熱可塑性液晶ポリエステル(A)と熱可塑性液晶ポリエステル(B)とは、融点の差が5℃以上95℃以下である。本発明の液晶ポリエステル系樹脂組成物は、熱可塑性液晶ポリエステル(A)と熱可塑性液晶ポリエステル(B)とをブレンドすることにより、溶融粘度の温度やせん断応力に対する依存度を小さくすることができるため、インフレーション押出成形用途に好適に用いることができる。熱可塑性液晶ポリエステル(A)と熱可塑性液晶ポリエステル(B)との融点の差は、10℃以上80℃以下が好ましく、20℃以上60℃以下がより好ましく、25℃以上55℃以下が特に好ましい。 [Liquid crystal polyester resin composition]
The liquid crystalline polyester resin composition of the present invention is a resin composition containing a thermoplastic liquid crystalline polyester (A) having a high melting point and excellent heat resistance and a thermoplastic liquid crystalline polyester (B) having a lower melting point than the thermoplastic liquid crystalline polyester (A). The difference in melting point between the thermoplastic liquid crystal polyester (A) and the thermoplastic liquid crystal polyester (B) is 5°C or more and 95°C or less. By blending the thermoplastic liquid crystalline polyester (A) and the thermoplastic liquid crystalline polyester (B), the liquid crystalline polyester resin composition of the present invention can reduce the dependence of melt viscosity on temperature and shear stress. , can be suitably used for inflation extrusion molding applications. The difference in melting point between the thermoplastic liquid crystal polyester (A) and the thermoplastic liquid crystal polyester (B) is preferably 10°C or higher and 80°C or lower, more preferably 20°C or higher and 60°C or lower, and particularly preferably 25°C or higher and 55°C or lower. .
本発明の樹脂組成物に用いられる熱可塑性液晶ポリエステル(A)は、p-ヒドロキシ安息香酸に由来する構成単位(モノマー成分Aと称することがある)と、6-ヒドロキシ-2-ナフトエ酸に由来する構成単位(モノマー成分Bと称することがある)とを必須単位として含む。熱可塑性液晶ポリエステル(A)は、モノマー成分A及びモノマー成分B以外の他のモノマー成分Cを含んでいても良く、モノマー成分Cとしては、芳香族又は脂肪族ジカルボン酸;芳香族又は脂肪族ジヒドロキシ化合物;芳香族ヒドロキシカルボン酸;芳香族ジアミン、芳香族ヒドロキシアミン又は芳香族アミノカルボン酸;等が挙げられ、これらの1種或いは2種以上を組合わせて用いることができる。 [Thermoplastic liquid crystal polyester (A)]
The thermoplastic liquid crystal polyester (A) used in the resin composition of the present invention is derived from structural units derived from p-hydroxybenzoic acid (sometimes referred to as monomer component A) and 6-hydroxy-2-naphthoic acid. (sometimes referred to as monomer component B) is included as an essential unit. The thermoplastic liquid crystalline polyester (A) may contain a monomer component C other than the monomer component A and the monomer component B, and the monomer component C includes an aromatic or aliphatic dicarboxylic acid; an aromatic or aliphatic dihydroxy compounds; aromatic hydroxycarboxylic acids; aromatic diamines, aromatic hydroxyamines or aromatic aminocarboxylic acids;
本発明の樹脂組成物に用いられる熱可塑性液晶ポリエステル(B)は、p-ヒドロキシ安息香酸に由来する構成単位(モノマー成分A’と称することがある)と、6-ヒドロキシ-2-ナフトエ酸に由来する構成単位(モノマー成分B’と称することがある)とを必須単位として含む、或いはp-ヒドロキシ安息香酸に由来する構成単位(モノマー成分A’と称することがある)と、4,4’―ジヒドロキシビフェニルに由来する構成単位(モノマー成分B’と称することがある)とを必須単位として含む。熱可塑性ポリエステル(B)は、モノマー成分A’及びモノマー成分B’以外の他のモノマー成分C’を含んでいても良く、モノマー成分C’としては、芳香族又は脂肪族ジカルボン酸;芳香族又は脂肪族ジヒドロキシ化合物;芳香族ヒドロキシカルボン酸;芳香族ジアミン、芳香族ヒドロキシアミン又は芳香族アミノカルボン酸;等が挙げられ、これらの1種或いは2種以上を組合わせて用いることができる。 [Thermoplastic liquid crystal polyester (B)]
The thermoplastic liquid crystal polyester (B) used in the resin composition of the present invention includes structural units derived from p-hydroxybenzoic acid (sometimes referred to as monomer component A') and 6-hydroxy-2-naphthoic acid. A structural unit derived from (sometimes referred to as monomer component B') as an essential unit, or a structural unit derived from p-hydroxybenzoic acid (sometimes referred to as monomer component A'), and 4,4' -Constituent units derived from dihydroxybiphenyl (sometimes referred to as monomer component B') are included as essential units. The thermoplastic polyester (B) may contain a monomer component C' other than the monomer component A' and the monomer component B', and the monomer component C' includes an aromatic or aliphatic dicarboxylic acid; aliphatic dihydroxy compounds; aromatic hydroxycarboxylic acids; aromatic diamines, aromatic hydroxyamines or aromatic aminocarboxylic acids;
溶融粘度の温度及びせん断応力に対する依存度を小さくする観点から、例えば、230℃以上300℃未満であることが好ましく、250℃以上295℃以下であることがより好ましく、260℃以上290℃以下であることがさらに好ましく、265℃以上285℃以下であることが特に好ましい。なお、熱可塑性液晶ポリエステル(B)の融点は、上述した熱可塑性液晶ポリエステル(A)における融点の測定方法と同様の方法により測定すればよい。 The thermoplastic liquid crystal polyester (B) used in the resin composition of the present invention preferably has a melting point of less than 300°C. The melting point of the thermoplastic liquid crystal polyester (B) is not particularly limited, but the heat resistance of the thermoplastic liquid crystal polyester (A), which has excellent heat resistance, is maintained,
From the viewpoint of reducing the dependence of melt viscosity on temperature and shear stress, for example, it is preferably 230 ° C. or higher and lower than 300 ° C., more preferably 250 ° C. or higher and 295 ° C. or lower, and 260 ° C. or higher and 290 ° C. or lower. 265° C. or more and 285° C. or less is particularly preferable. The melting point of the thermoplastic liquid crystal polyester (B) may be measured by the same method as the melting point of the thermoplastic liquid crystal polyester (A) described above.
本発明では、上述した樹脂組成物からなるフィルム、及び該フィルムの製造方法も提案する。本発明の液晶ポリエステル系フィルムは、上述した熱可塑性液晶ポリエステル(A)と熱可塑性液晶ポリエステル(B)とを、公知の方法によりブレンドして製膜することにより得られる。なお、本発明の樹脂組成物は、熱可塑性液晶ポリエステル(B)の配合割合が少なくなる場合は、安定した混錬状態を提供するため、製膜に先立ち、溶融混錬・造粒しておくことが好ましい。 [Method for producing liquid crystal polyester film]
The present invention also proposes a film made of the resin composition described above and a method for producing the film. The liquid crystalline polyester film of the present invention is obtained by blending the thermoplastic liquid crystalline polyester (A) and the thermoplastic liquid crystalline polyester (B) by a known method to form a film. When the blending ratio of the thermoplastic liquid crystal polyester (B) is small, the resin composition of the present invention is melt-kneaded and granulated prior to film formation in order to provide a stable kneading state. is preferred.
本発明の液晶ポリエステル系フィルムは、これに金属層を積層して、金属ラミネートフィルムとして用いてもよい。金属層を積層するにあたって、液晶ポリエステル系フィルムの金属層を積層する面には、接着力を高めるため、コロナ放電処理、紫外線照射処理又はプラズマ処理を実施してもよい。 [Metal laminate film]
The liquid crystalline polyester film of the present invention may be used as a metal laminate film by laminating a metal layer thereon. In laminating the metal layer, the surface of the liquid crystalline polyester film on which the metal layer is to be laminated may be subjected to corona discharge treatment, ultraviolet irradiation treatment or plasma treatment in order to increase adhesive strength.
本発明の回路基板は、少なくとも1つの導体層と、少なくとも1つの絶縁体(または誘電体)層とを含んでおり、本発明の液晶ポリエステル系フィルムを絶縁体(または誘電体)として用いる限り、その形態は特に限定されず、公知または慣用の手段により、各種高周波回路基板として用いることが可能である。また、回路基板は、半導体素子(例えば、ICチップ)を搭載している回路基板(または半導体素子実装基板)であってもよい。 [Circuit board]
The circuit board of the present invention includes at least one conductor layer and at least one insulator (or dielectric) layer. Its form is not particularly limited, and it can be used as various high-frequency circuit boards by known or common means. Also, the circuit board may be a circuit board (or a semiconductor element mounting board) on which a semiconductor element (for example, an IC chip) is mounted.
LCP(1):p-ヒドロキシ安息香酸に由来する構成単位と、6-ヒドロキシ-2-ナフトエ酸に由来する構成単位と、テレフタル酸に由来する構成単位と、からなる熱可塑性液晶ポリエステル(ポリプラスチックス株式会社製 LAPEROS(登録商標)C950RX、融点:320℃)
LCP(2):p-ヒドロキシ安息香酸に由来する構成単位と、6-ヒドロキシ-2-ナフトエ酸に由来する構成単位と、からなる熱可塑性液晶ポリエステル(ポリプラスチックス株式会社製 LAPEROS(登録商標)A950RX、融点:280℃)
LCP(3):p-ヒドロキシ安息香酸に由来する構成単位と、4,4’-ジヒドロキシビフェニルに由来する構成単位と、テレフタル酸に由来する構成単位と、からなる熱可塑性液晶ポリエステル(ENEOS液晶株式会社製 ザイダー(登録商標)CX-2199、融点:280℃)
LCP(4):熱可塑性液晶ポリエステル(上野製薬株式会社製 UENO LCP(登録商標)A8100、融点:220℃) The following resins were used in Examples and Comparative Examples.
LCP (1): Thermoplastic liquid crystal polyester (polyplastic LAPEROS (registered trademark) C950RX manufactured by Su Co., Ltd., melting point: 320 ° C.)
LCP (2): Thermoplastic liquid crystal polyester (LAPEROS (registered trademark) manufactured by Polyplastics Co., Ltd.) consisting of structural units derived from p-hydroxybenzoic acid and structural units derived from 6-hydroxy-2-naphthoic acid A950RX, melting point: 280°C)
LCP (3): Thermoplastic liquid crystal polyester (ENEOS liquid crystal stock Zydar (registered trademark) CX-2199 manufactured by the company, melting point: 280°C)
LCP (4): Thermoplastic liquid crystal polyester (UENO LCP (registered trademark) A8100 manufactured by Ueno Pharmaceutical Co., Ltd., melting point: 220°C)
熱可塑性液晶ポリエステルを表1に記載の割合で予備混合後、二軸押出機(東芝機械株式会社製、型式:TEM-18SS―12/2V)を用いて、シリンダー温度330℃、押出速度10kg/hで造粒し、液晶ポリエステル系樹脂組成物のペレットを得、以下の測定に使用した。 (1) Production of resin composition After premixing the thermoplastic liquid crystalline polyester in the ratio shown in Table 1, a twin-screw extruder (manufactured by Toshiba Machine Co., Ltd., model: TEM-18SS-12/2V) was used to produce a cylinder. Granulation was performed at a temperature of 330° C. and an extrusion rate of 10 kg/h to obtain pellets of the liquid crystalline polyester resin composition, which were used for the following measurements.
キャピログラフ(株式会社東洋精機製、型式:キャピログラフF1)を用い、ノズル径.1mm、ノズル長10mmのダイスにて測定を行った。せん断速度6~2430sec-1の条件下にて、それぞれ熱可塑性液晶ポリエステル(A)の融点の溶融粘度(μTm)と熱可塑性液晶ポリエステル(A)の融点+10℃の溶融粘度(μTm+10)の値を測定し、下記式より溶融粘度比を算出した。溶融粘度比の測定結果を表1に示す。
溶融粘度比=熱可塑性液晶ポリエステル(A)の融点の溶融粘度(μTm)/熱可塑性液晶ポリエステル(A)の融点+10℃の溶融粘度(μTm+10)
なお、上記で得た液晶ポリエステル系樹脂組成物に加え、実施例、比較例で用いた熱可塑性液晶ポリエステル樹脂単体(参考例)の溶融粘度比を、LCP(1)の融点を基準に測定した。 (2) Measurement of melt viscosity ratio Using a capillograph (manufactured by Toyo Seiki Co., Ltd., model: capillograph F1), the nozzle diameter. Measurement was performed with a die of 1 mm and a nozzle length of 10 mm. Under the conditions of a shear rate of 6 to 2430 sec -1 , the melt viscosity (μ Tm ) at the melting point of the thermoplastic liquid crystalline polyester (A) and the melt viscosity (μ Tm + 10 ) at the melting point + 10 ° C. of the thermoplastic liquid crystalline polyester (A) The values were measured, and the melt viscosity ratio was calculated from the following formula. Table 1 shows the measurement results of the melt viscosity ratio.
Melt viscosity ratio = melt viscosity at the melting point of the thermoplastic liquid crystalline polyester (A) (μ Tm )/melt viscosity at the melting point of the thermoplastic liquid crystalline polyester (A) + 10°C (μ Tm + 10 )
In addition to the liquid crystal polyester resin composition obtained above, the melt viscosity ratio of the thermoplastic liquid crystal polyester resin alone (reference example) used in Examples and Comparative Examples was measured based on the melting point of LCP (1). .
上記で得られた液晶ポリエステル系樹脂組成物及び各熱可塑性液晶ポリエステルを単軸押出機で加熱混錬し、環状インフレーションダイ(直径25mm)から吐出量3kg/hで溶融押出し、ドラフト比=2、ブロー比=5の条件で延伸し、インフレーション押出成形法により厚み50μmの液晶ポリエステル系フィルムを得た。以下の評価方法により得られたフィルムの製膜性、引張強度を表2に示す。 (3) Production of film by inflation extrusion molding The liquid crystalline polyester resin composition obtained above and each thermoplastic liquid crystalline polyester are heated and kneaded in a single-screw extruder, and discharged from an annular inflation die (diameter 25 mm) at a rate of 3 kg/ The film was melt-extruded at h and stretched under conditions of a draft ratio of 2 and a blow ratio of 5 to obtain a liquid crystal polyester film having a thickness of 50 μm by inflation extrusion molding. Table 2 shows the film formability and tensile strength of the films obtained by the following evaluation methods.
インフレーション押出成形法によりフィルムを製膜した際に、ダイスから押し出された溶融状態の樹脂からなるバブルの外観を目視にて下記基準で評価した。
○:バブルに穴あき無し
△:バブルに小さな穴あきが発生(バブル内部のエア抜けにより、バブル形状が不安定)
×:バブルに穴あきが発生し、フィルムの安定的な製膜不可
(引張強度)
ASTM D882に準拠し、190mm×15mmの大きさに切断したサンプルを、オートグラフAGS-500NX(株式会社島津製作所製)を用いて引張速度12.5mm/分、チャック間距離を125mmとして測定した。測定温度は23℃である。なお、フィルムの流れ方向(MD方向)と幅方向(TD方向)の双方を測定した。 (Film formability: bubble perforation)
When the film was formed by the inflation extrusion method, the appearance of bubbles composed of molten resin extruded from the die was visually evaluated according to the following criteria.
○: No hole in bubble △: Small hole in bubble (bubble shape is unstable due to air leakage inside the bubble)
×: Stable film formation is not possible due to perforation in bubbles (tensile strength)
Based on ASTM D882, a sample cut into a size of 190 mm x 15 mm was measured using Autograph AGS-500NX (manufactured by Shimadzu Corporation) at a tensile speed of 12.5 mm/min and a chuck distance of 125 mm. The measurement temperature is 23°C. Both the machine direction (MD direction) and the width direction (TD direction) of the film were measured.
本発明の金属ラミネートフィルムは、回路基板やコンデンサー、電磁波シールド材等に用いることもできる。本発明の回路基板は、各種伝送線路やアンテナ(例えば、マイクロ波またはミリ波用アンテナ)に用いられてもよく、また、アンテナと伝送線路が一体化したアンテナ装置に用いられてもよい。
As described above, the liquid crystalline polyester film obtained by the present invention can be used for electrical insulation of motors and transformers, flexible solar cell element forming films, etc. by taking advantage of its excellent electrical properties, dimensional stability and heat resistance. It's being used. It can also be used in acoustic fields such as surface protective films and diaphragms.
The metal laminate film of the present invention can also be used for circuit boards, capacitors, electromagnetic shielding materials, and the like. The circuit board of the present invention may be used for various transmission lines and antennas (for example, microwave or millimeter wave antennas), and may be used for antenna devices in which an antenna and a transmission line are integrated.
Claims (12)
- 熱可塑性液晶ポリエステル(A)と熱可塑性液晶ポリエステル(B)とを含む液晶ポリエステル系樹脂組成物であって、前記熱可塑性液晶ポリエステル(A)と前記熱可塑性液晶ポリエステル(B)との融点の差が5℃以上95℃以下であり、前記熱可塑性液晶ポリエステル(A)は、p-ヒドロキシ安息香酸に由来する構成単位と6-ヒドロキシ-2-ナフトエ酸に由来する構成単位とを含み、前記熱可塑性液晶ポリエステル(B)は、p-ヒドロキシ安息香酸に由来する構成単位と6-ヒドロキシ-2-ナフトエ酸に由来する構成単位とを含む、或いはp-ヒドロキシ安息香酸に由来する構成単位と4,4’―ジヒドロキシビフェニルに由来する構成単位とを含むいずれかであり、前記熱可塑性液晶ポリエステル(A)と前記熱可塑性液晶ポリエステル(B)との配合割合が(A):(B)=40~98重量%:2~60重量%であり、インフレーション押出成形に用いることを特徴とする液晶ポリエステル系樹脂組成物。 A liquid crystalline polyester resin composition containing a thermoplastic liquid crystalline polyester (A) and a thermoplastic liquid crystalline polyester (B), wherein the difference in melting point between the thermoplastic liquid crystalline polyester (A) and the thermoplastic liquid crystalline polyester (B) is 5 ° C. or higher and 95 ° C. or lower, the thermoplastic liquid crystal polyester (A) contains a structural unit derived from p-hydroxybenzoic acid and a structural unit derived from 6-hydroxy-2-naphthoic acid, and the heat The plastic liquid crystalline polyester (B) contains a structural unit derived from p-hydroxybenzoic acid and a structural unit derived from 6-hydroxy-2-naphthoic acid, or a structural unit derived from p-hydroxybenzoic acid and 4, and a structural unit derived from 4'-dihydroxybiphenyl, and the blending ratio of the thermoplastic liquid crystalline polyester (A) and the thermoplastic liquid crystalline polyester (B) is (A):(B) = 40 ~ 98% by weight: 2 to 60% by weight A liquid crystalline polyester resin composition characterized by being used for inflation extrusion molding.
- せん断速度122sec-1の条件下で測定した前記熱可塑性液晶ポリエステル(A)の融点における溶融粘度(μTm)とせん断速度122sec-1の条件下で測定した前記熱可塑性液晶ポリエステル(A)の融点+10℃における溶融粘度(μTm+10)との溶融粘度比R122(μTm/μTm+10)が3.4未満であることを特徴とする請求項1に記載の液晶ポリエステル系樹脂組成物。 Melt viscosity (μ Tm ) at the melting point of the thermoplastic liquid crystalline polyester (A) measured at a shear rate of 122 sec −1 and the melting point of the thermoplastic liquid crystalline polyester (A) measured at a shear rate of 122 sec −1 2. The liquid crystalline polyester resin composition according to claim 1, wherein the melt viscosity ratio R 122 (μ Tm /μ Tm+10 ) to the melt viscosity (μ Tm+10 ) at +10° C. is less than 3.4.
- せん断速度1216sec-1の条件下で測定した前記熱可塑性液晶ポリエステル(A)の融点における溶融粘度(μTm)とせん断速度1216sec-1の条件下で測定した前記熱可塑性液晶ポリエステル(A)の融点+10℃における溶融粘度(μTm+10)との溶融粘度比R1216(μTm/μTm+10)に対する、せん断速度122sec-1の条件下で測定した前記熱可塑性液晶ポリエステル(A)の融点における溶融粘度(μTm)とせん断速度122sec-1の条件下で測定した前記熱可塑性液晶ポリエステル(A)の融点+10℃における溶融粘度(μTm+10)との溶融粘度比R122(μTm/μTm+10)の比(R122/R1216)の値が1.5以下であることを特徴とする請求項1に記載の液晶ポリエステル系樹脂組成物。 Melt viscosity (μ Tm ) at the melting point of the thermoplastic liquid crystalline polyester (A) measured at a shear rate of 1216 sec -1 and the melting point of the thermoplastic liquid crystalline polyester (A) measured at a shear rate of 1216 sec -1 The melt viscosity at the melting point of the thermoplastic liquid crystal polyester (A) measured under the conditions of a shear rate of 122 sec −1 for the melt viscosity ratio R 1216 (μ Tm /μ Tm+10 ) to the melt viscosity (μ Tm+10 ) at +10 ° C. ( μ Tm ) and the melt viscosity ratio R 122 (μ Tm /μ Tm+10 ) of the thermoplastic liquid crystalline polyester (A) measured at a shear rate of 122 sec −1 at a melting point +10° C. (μ Tm+10 ) 2. The liquid crystalline polyester resin composition according to claim 1, wherein the value of ( R122 / R1216 ) is 1.5 or less.
- せん断速度122~2430sec-1の範囲内において、それぞれのせん断速度の条件下で測定した前記熱可塑性液晶ポリエステル(A)の融点における溶融粘度(μTm)と前記熱可塑性液晶ポリエステル(A)の融点+10℃における溶融粘度(μTm+10)との溶融粘度比R(μTm/μTm+10)の最大値と最小値との差(バラつき)が1.2未満であることを特徴とする請求項1に記載の液晶ポリエステル系樹脂組成物。 Melt viscosity (μ Tm ) at the melting point of the thermoplastic liquid crystalline polyester (A) and the melting point of the thermoplastic liquid crystalline polyester (A) measured under the conditions of each shear rate within the range of shear rate 122 to 2430 sec −1 The difference (variation) between the maximum value and the minimum value of the melt viscosity ratio R (μ Tm /μ Tm+10 ) to the melt viscosity (μ Tm+10 ) at +10 ° C. is less than 1.2. The liquid crystalline polyester resin composition described.
- せん断速度6~2430sec-1の範囲内において、それぞれのせん断速度の条件下で測定した前記熱可塑性液晶ポリエステル(A)の融点における溶融粘度(μTm)と前記熱可塑性液晶ポリエステル(A)の融点+10℃における溶融粘度(μTm+10)との溶融粘度比R(μTm/μTm+10)の最大値と最小値との差(バラつき)が3.4未満であることを特徴とする請求項1に記載の液晶ポリエステル系樹脂組成物。 Melt viscosity (μ Tm ) at the melting point of the thermoplastic liquid crystalline polyester (A) and the melting point of the thermoplastic liquid crystalline polyester (A) measured under the conditions of each shear rate within the range of shear rate 6 to 2430 sec −1 The difference (variation) between the maximum value and the minimum value of the melt viscosity ratio R (μ Tm /μ Tm+10 ) to the melt viscosity (μ Tm+10 ) at +10 ° C. is less than 3.4. The liquid crystalline polyester resin composition described.
- 前記熱可塑性液晶ポリエステル(A)の融点は、300℃以上であり、前記熱可塑性液晶ポリエステル(B)の融点は、300℃未満であることを特徴とする請求項1に記載の液晶ポリエステル系樹脂組成物。 2. The liquid crystalline polyester resin according to claim 1, wherein the thermoplastic liquid crystalline polyester (A) has a melting point of 300° C. or higher, and the thermoplastic liquid crystalline polyester (B) has a melting point of less than 300° C. Composition.
- 前記熱可塑性液晶ポリエステル(A)と前記熱可塑性液晶ポリエステル(B)との配合割合が(A):(B)=60~96重量%:4~40重量%であることを特徴とする請求項1に記載の液晶ポリエステル系樹脂組成物。 A blending ratio of said thermoplastic liquid crystal polyester (A) and said thermoplastic liquid crystal polyester (B) is (A):(B) = 60 to 96% by weight: 4 to 40% by weight. 2. The liquid crystal polyester resin composition according to 1.
- 請求項1乃至7の何れかに記載の樹脂組成物からなることを特徴とする液晶ポリエステル系フィルム。 A liquid crystal polyester film characterized by comprising the resin composition according to any one of claims 1 to 7.
- フィルムの流れ方向の引張強度をF(MD)、フィルム幅方向の引張強度F(TD)とするとき、0.75≦F(TD)/F(MD)≦1.25であることを特徴とする請求項8に記載の液晶ポリエステル系フィルム。 When the tensile strength in the machine direction of the film is F (MD) and the tensile strength in the film width direction is F (TD), 0.75 ≤ F (TD) / F (MD) ≤ 1.25. The liquid crystal polyester film according to claim 8.
- インフレーション押出成形により製膜することを特徴とする請求項9に記載の液晶ポリエステル系フィルムの製造方法。 10. The method for producing a liquid crystalline polyester film according to claim 9, wherein the film is formed by inflation extrusion molding.
- 請求項9に記載の液晶ポリエステル系フィルムの片面又は両面に金属層がラミネートされていることを特徴とする金属ラミネートフィルム。 A metal laminate film comprising a metal layer laminated on one side or both sides of the liquid crystal polyester film according to claim 9.
- 少なくとも1つの導体層と、請求項9に記載の熱可塑性液晶ポリエステル系フィルムとを備える回路基板。
A circuit board comprising at least one conductor layer and the thermoplastic liquid crystal polyester film according to claim 9 .
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KR1020237030668A KR20230142598A (en) | 2021-04-14 | 2022-04-09 | Liquid crystal polyester-based resin composition, liquid crystal polyester-based film using the composition, metal laminate film using the film, circuit board |
CN202280017819.1A CN116897190A (en) | 2021-04-14 | 2022-04-09 | Liquid crystal polyester resin composition, liquid crystal polyester film using the composition, metal laminated film using the film, and circuit board |
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JP2001342243A (en) * | 1999-11-02 | 2001-12-11 | Sumitomo Chem Co Ltd | Aromatic liquid crystal polyester film and method for producing the same |
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JP2021028374A (en) * | 2019-08-09 | 2021-02-25 | 住友化学株式会社 | Resin composition and molded article |
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JPH05186671A (en) | 1992-01-08 | 1993-07-27 | Kuraray Co Ltd | Thermotropic liquid crystal polyester composition |
JP5041652B2 (en) | 2003-05-21 | 2012-10-03 | 株式会社クラレ | Film production method |
JP5110787B2 (en) | 2005-10-28 | 2012-12-26 | 上野製薬株式会社 | Liquid crystal polymer blend and composition comprising the same |
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- 2022-04-09 CN CN202280017819.1A patent/CN116897190A/en active Pending
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JPH0912744A (en) * | 1995-04-26 | 1997-01-14 | Sumitomo Chem Co Ltd | Liquid crystal polyester resin composition film and its production |
JP2001342243A (en) * | 1999-11-02 | 2001-12-11 | Sumitomo Chem Co Ltd | Aromatic liquid crystal polyester film and method for producing the same |
JP2002060498A (en) * | 2000-08-11 | 2002-02-26 | Sumitomo Chem Co Ltd | Method for manufacturing thermoplastic resin |
JP2009227807A (en) * | 2008-03-21 | 2009-10-08 | Fujifilm Corp | Liquid crystal polymer and film |
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WO2023145489A1 (en) * | 2022-01-28 | 2023-08-03 | 住友化学株式会社 | Liquid crystal polyester composition, method for producing liquid crystal polyester composition, film, and method for producing film |
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CN116897190A (en) | 2023-10-17 |
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