WO2008023839A1 - Composant électronique asymétrique - Google Patents
Composant électronique asymétrique Download PDFInfo
- Publication number
- WO2008023839A1 WO2008023839A1 PCT/JP2007/066824 JP2007066824W WO2008023839A1 WO 2008023839 A1 WO2008023839 A1 WO 2008023839A1 JP 2007066824 W JP2007066824 W JP 2007066824W WO 2008023839 A1 WO2008023839 A1 WO 2008023839A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electronic component
- weight
- asymmetric electronic
- fiber length
- liquid crystalline
- Prior art date
Links
- 239000000835 fiber Substances 0.000 claims abstract description 40
- 229920000106 Liquid crystal polymer Polymers 0.000 claims abstract description 22
- 239000012765 fibrous filler Substances 0.000 claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 abstract description 15
- 239000000463 material Substances 0.000 abstract description 12
- 239000004615 ingredient Substances 0.000 abstract 3
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 abstract 1
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 description 30
- -1 aromatic hydroxycarboxylic acids Chemical class 0.000 description 22
- 239000007788 liquid Substances 0.000 description 18
- 238000004898 kneading Methods 0.000 description 13
- 239000003365 glass fiber Substances 0.000 description 12
- 125000003118 aryl group Chemical group 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000008188 pellet Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000000454 talc Substances 0.000 description 4
- 229910052623 talc Inorganic materials 0.000 description 4
- 150000004984 aromatic diamines Chemical class 0.000 description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011342 resin composition Substances 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- PLIKAWJENQZMHA-UHFFFAOYSA-N 4-aminophenol Chemical compound NC1=CC=C(O)C=C1 PLIKAWJENQZMHA-UHFFFAOYSA-N 0.000 description 2
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 description 2
- 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 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 101100115709 Mus musculus Stfa2 gene Proteins 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 125000002723 alicyclic group Chemical group 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000001746 injection moulding Methods 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
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 1
- XBNGYFFABRKICK-UHFFFAOYSA-N 2,3,4,5,6-pentafluorophenol Chemical compound OC1=C(F)C(F)=C(F)C(F)=C1F XBNGYFFABRKICK-UHFFFAOYSA-N 0.000 description 1
- NEQFBGHQPUXOFH-UHFFFAOYSA-N 4-(4-carboxyphenyl)benzoic acid Chemical compound C1=CC(C(=O)O)=CC=C1C1=CC=C(C(O)=O)C=C1 NEQFBGHQPUXOFH-UHFFFAOYSA-N 0.000 description 1
- SUBDBMMJDZJVOS-UHFFFAOYSA-N 5-methoxy-2-{[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl}-1H-benzimidazole Chemical compound N=1C2=CC(OC)=CC=C2NC=1S(=O)CC1=NC=C(C)C(OC)=C1C SUBDBMMJDZJVOS-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 235000010799 Cucumis sativus var sativus Nutrition 0.000 description 1
- 244000299906 Cucumis sativus var. sativus Species 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 239000000619 acesulfame-K Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 125000001118 alkylidene group Chemical group 0.000 description 1
- 150000001408 amides Chemical group 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 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 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000001752 chlorophylls and chlorophyllins Substances 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- PCILLCXFKWDRMK-UHFFFAOYSA-N naphthalene-1,4-diol Chemical compound C1=CC=C2C(O)=CC=C(O)C2=C1 PCILLCXFKWDRMK-UHFFFAOYSA-N 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
- MNZMMCVIXORAQL-UHFFFAOYSA-N naphthalene-2,6-diol Chemical compound C1=C(O)C=CC2=CC(O)=CC=C21 MNZMMCVIXORAQL-UHFFFAOYSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- IZUPBVBPLAPZRR-UHFFFAOYSA-N pentachloro-phenol Natural products OC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl IZUPBVBPLAPZRR-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 1
- 229960001755 resorcinol Drugs 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910052851 sillimanite Inorganic materials 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- ZZORFUFYDOWNEF-UHFFFAOYSA-N sulfadimethoxine Chemical compound COC1=NC(OC)=CC(NS(=O)(=O)C=2C=CC(N)=CC=2)=N1 ZZORFUFYDOWNEF-UHFFFAOYSA-N 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
Definitions
- the present invention relates to asymmetric electronic components such as memory module connectors and memory card sockets.
- Liquid crystalline polymers are known as materials that are excellent in dimensional accuracy, vibration damping, and fluidity among thermoplastic resins, have very few burrs during molding, and generate little gas. Conventionally, taking advantage of these characteristics, liquid crystalline polymers have been widely used as materials for various electronic components.
- the connector has been further reduced in size and thickness, and warpage deformation has occurred after molding and during reflow heating due to insufficient rigidity due to insufficient thickness of the molded product and internal stress due to the metal terminal insert.
- a typical example of such an asymmetric electronic component is a memory module connector having a latch structure (having fixing claws at both ends) such as a DDR-DIMM connector.
- the memory module connector for notebook computers has a latch structure for mounting and a notch for alignment, resulting in a very complicated shape.
- the present invention solves the above-mentioned problems of the prior art, and even an asymmetric electronic component has excellent mechanical properties, little warpage, and excellent performance such as heat resistance and fluidity. It is an object to provide a material that can be molded.
- the inventors of the present invention have achieved the above-mentioned object, and have conducted a intensive search and examination to provide a material suitable for forming an asymmetric electronic component with an excellent performance balance.
- Asymmetric electronic components with excellent performance in terms of warpage, heat resistance, etc. can be obtained by blending glass fibers that do not have a certain length and a specific plate-like filler into a liquid crystalline polymer at a specific ratio.
- the present invention has been completed. That is, the present invention excludes (A) fibers having an average fiber diameter of 5 to 30 ⁇ m and a fiber length of 10 Mm or less.
- a certain plate-like filler is blended, and the total filling amount of the components (A) and (B) in the composition is 40 to 60% by weight, and the weight fraction of the component (A) is 10 to 20% by weight. /.
- the component (B) is molded from a liquid crystalline polymer composition having a weight fraction of 30 to 40% by weight, and is symmetric with respect to any of the XY, YZ, and XZ axis surfaces of the molded product. This is an asymmetric electronic component that has no characteristics.
- the liquid crystalline polymer used in the present invention refers to a melt processable polymer having a property capable of forming an optically anisotropic melt phase.
- the properties of the anisotropic molten phase can be confirmed and confirmed by a conventional polarization inspection method using an orthogonal polarizer. More specifically, the anisotropic molten phase can be confirmed by using a Leitz polarizing microscope and observing a molten sample placed on a Leitz hot stage under a nitrogen atmosphere at a magnification of 40 times. .
- polarized light is normally transmitted even in a molten stationary state, and optically anisotropic.
- the liquid crystalline polymer is not particularly limited, but is preferably an aromatic polyester or an aromatic polyester amide, and partially contains an aromatic polyester or an aromatic polyester amide in the same molecular chain. Polyester is also in that range. These are preferably at least about 2.0 d 1 / g, more preferably 2.0 to: LO.O when dissolved in pentafluorophenol at a concentration of 0.1 wt% at 60 ° C. Those having a logarithmic viscosity (I.V ⁇ ) of dl Z g are used.
- the aromatic polyester or aromatic polyester amide as the liquid crystalline polymer (A) applicable to the present invention is particularly preferably at least one selected from the group consisting of aromatic hydroxycarboxylic acids, aromatic hydroxyamines and aromatic diamines.
- Polyester amide comprising one or more of aromatic dicarboxylic acid, alicyclic dicarboxylic acid and derivatives thereof;
- Aromatic diols such as compounds such as terephthalic acid, isophthalic acid, 4,4'-diphenyldicarboxylic acid, 2,6-naphthalenedicarboxylic acid, and compounds represented by the following general formula (III) Aromatic dicarboxylic acids; p-aminophenol, p-phenylenediamine Aromatic amines such as c
- liquid crystalline polymers to which the present invention is applied are aromatic polyesters containing p-hydroxybenzoic acid and 6-hydroxy-2-naphthoic acid as main structural unit components.
- the (A) fibrous filler used in the present invention has an average fiber diameter of 5 to 30 ⁇ m, a weight average fiber length excluding those having a fiber length of 10 ⁇ m or less, and 250 to 350 ⁇ m.
- the ratio of those with a length of 700, um or more is within 5% by weight.
- the weight average fiber length of the (A) fibrous filler is less than 250 ⁇ , the scavenging effect is small and the desired effect cannot be obtained even if the blending amount is increased.
- the weight average fiber length of the fibrous filler exceeds 350 ⁇ , even if the blending amount is reduced, the fluidity is deteriorated, and a molded product with little warping deformation cannot be obtained.
- the ratio of fibers having a fiber length of 700 ⁇ m or more is 5%. / If it exceeds 0 , the fluidity will deteriorate as well, and there will be less warping deformation and molded products will not be obtained.
- the weight average fiber length of the (A) fibrous filler referred to in the present invention is a value in a molded product and can be measured by the method described later.
- the component (B) used in the present invention is a plate-like filler having an average particle size of 0.5 to 200 ⁇ .
- the average particle size is outside the above range, the effect of improving low warpage is small.
- the blending ratio of the components (A) and ( ⁇ ) is important for achieving the intended purpose of the present invention, and (A) and ( ⁇
- the total filling amount of component) must be 40-60% by weight, the weight fraction of component (ii) should be 10-20% by weight, and the component (vi) component should have a weight fraction of 30-40% by weight. is there.
- plate-like fillers are useful for improving low warpage, but if the content exceeds 40% by weight, the extrudability and moldability deteriorate and the material becomes brittle. On the other hand, if the content is less than 30% by weight, the effect of improving low warpage is small.
- the total filling amount of the components (A) and (i) in the composition is 40 to 60% by weight. If the total filling amount is less than 40% by weight, any combination of the components (A) and (i) will deteriorate any of the low warpage, mechanical strength and fluidity. In addition, when the total filling amount exceeds 60% by weight, fluidity and the like deteriorate.
- Examples of (i) fibrous filler used in the present invention include glass fiber, carbon fiber, whisker, inorganic fiber, ore fiber, and glass fiber is preferred.
- Specific examples of the (B) plate-like filler used in the present invention include Tanorek, My force, Kaolin, Clay, Graffite, Vermiculite, Calcium silicate, Aluminum silicate, feldspar powder, Acid clay, Rousite Clay, sericite, sillimanite, bentonite, glass flakes, slate powder, silicates such as silane, carbonates such as calcium carbonate, cucumber, barium carbonate, magnesium carbonate, dolomite, barite powder, precipitated calcium sulfate, calcined gypsum , Sulfates such as barium sulfate, hydrated hydroxides such as alumina, alumina, antimony oxide, magnesia, titanium oxide, zinc white, silica, silica sand, quartz, white carbon, diatomaceous earth oxides, molybdenum
- talc my strength, kaolin, graphite, and glass flakes are preferable from the viewpoint of performance, and talc is particularly preferable.
- the liquid crystalline polymer composition of the present invention includes a nucleating agent, a carbon black, a pigment such as an inorganic fired pigment, an antioxidant, a stabilizer, a plasticizer, a lubricant, a release agent, as long as the object of the present invention is not impaired. Additives such as agents and flame retardants can also be added.
- the asymmetric electronic component referred to in the present invention has no symmetry with respect to any of the X, Y, Z, and X Z axis surfaces of the molded product.
- the XY axis plane, YZ axis plane, or XZ axis plane has symmetry in the axis plane. It is possible to control the dimensional accuracy and warpage of the product by designing the gate position and design so as to maintain the above.
- the asymmetric electronic component of the present invention has a complicated shape and is difficult to reduce by a molding method.
- any production method may be used as long as it is in the form of a filler as defined in the present invention, but usually by melt kneading with an extruder, A method of extruding into pellets is used and defines the fibrous filler In order to make this range, the number of kneading may be two or more.
- a typical example of such an asymmetric electronic component is a certain type of connector or socket.
- DIMM connector DIMM connector
- DDR-DIMM connector DDR-DIMM connector
- Examples include DDR2-DIMM connectors, DDR-SO-DIMM connectors, DDR2-SO-DIMM connectors, DDR-Micro-DIMM connectors, and DDR2-Micro-DIMM connectors.
- the pitch-to-pitch distance is 1.0mm or less
- the total product length is 60.0mm or more
- the product height is 6.0nmi
- Such a memory module connector is subjected to an IR reflow process for surface mounting at a peak temperature of 230 to 280 ° C.
- the flatness before the IR reflow process is 0.1 mm or less, and The difference in flatness before and after reflow is required to be 0.02 mm or less.
- Sockets include card bus, CF card, memory stick, PC card, SD card, SDMo, smart card, smart media completion card, micro SD card, miniSD card, xD picture card, TransFlash, etc. Especially suitable for memory card sockets with rail structure and product height of 6.0mm or less.
- Figure 1 shows the DDR-DIMM connector used for connector evaluation in the example.
- symbol A indicates the strength measurement point of the latch structure and B indicates the gate position.
- FIG. 2 is a diagram showing an outline of an extruder used in Examples 1 to 6 and Comparative Examples 1 to 9.
- 1 is the main feed port: C 1
- 2 is the plastic section: C 4
- 3 is the side feed port: C 5
- 4 is the kneading unit: C 6 to C 8
- 5 is Die
- 6 indicates a screw
- 7 indicates a vacuum vent.
- the resin composition pellet was heated at 600 ° C. for 2 hours to be incinerated. After the incineration residue was sufficiently dispersed in a 5% polyethylene glycol aqueous solution, it was transferred to a petri dish with a spot and the fibrous filler was observed with a microscope. At the same time, the weight average length of the fibrous filler was measured using an image analyzer (LUZEX FS manufactured by Nireco Corporation). In the image analysis, a subroutine was applied to separate the overlapping fibers into separate fibers and determine their lengths. Measurements were made excluding fibrous fillers of 10 m or less. In addition, the ratio of fibrous fillers with a length of 700 m or more was calculated from the measured data.
- LZEX FS image analyzer
- a load deflection temperature test piece was molded under the following molding conditions, and the deflection temperature under load was measured according to ISO 75-1-5.
- Screw rotation speed lOOrpm
- Screw back pressure 3.5MPa
- DDR-DIMM connector type shown in Fig. 1 (Height: 4.0 mm, Pitch distance: 0.6 mm, Number of pins: 100 X2, Gate: Tunnel gate, Gate size: 0.75 mm,
- a DDR-DIMM connector was molded under the following molding conditions, and the connector minimum filling pressure and warpage evaluation were evaluated.
- the minimum filling pressure required to obtain a good molded product was measured at the resin filling pressure obtained when molding the DDR-DIMM connector.
- the flatness of the molded product was measured using a non-contact type dimension measuring machine (Mitto Quick Vision PRO) immediately after molding and after reflow treatment under the following conditions.
- Reflow treatment equipment Large-size desktop reflow soldering equipment manufactured by Nippon Pulse Technology Laboratory RF-300 (using far infrared heater)
- the liquid crystalline polyester was dry blended with the various fillers shown in Table 1 in the proportions shown in Table 1, and then melt-kneaded in an extruder and pelletized. From the pellets, the above test specimens were produced by an injection molding machine and evaluated. The results shown in Table 1 were obtained.
- liquid crystalline polyester used various fillers, extrusion conditions, etc. are as follows.
- Liquid crystalline polyester 3 (LCP; manufactured by Polyplastics Co., Ltd., Vectra E 140 i (containing 40% by weight of glass fiber 1 described below)
- Liquid crystal polyester 4 (LCP; manufactured by Polyplastics Co., Ltd., Vectra S 1 35 (product containing 35% by weight of glass fiber 1 described below)
- Crown Talc PP (average particle size ⁇ ) manufactured by Matsumura Sangyo Co., Ltd.
- Figure 2 shows an outline of the extruder screen.
- Plasticizing part 2 C 4 (Composition: Forward kneading, reverse kneading from the upstream side, length 132 mm)
- Kneading part 4 C 6 to C 8 (Configuration: forward kneading, orthogonal kneading, reverse kneading, reverse flight, forward kneading, reverse kneading, reverse freight, length 363 mm)
- Heavy-weight two-axis screw feeder K-one T r o n
- Examples 1 to 3 and Comparative Examples 1 to 4 and 7 to 9 are provided in the main feed port 1. Only cylinder C1 is 200 ° C, and all other cylinders are 350 ° C. In Examples 4 to 5, only the cylinder C 1 provided in the main feed roller 1 is 200 ° C., and the other cylinder temperatures are all 370 ° C. Comparative Examples 5 and 6 are kneading sections.
- liquid crystal polyester pellets were supplied from the main feed port 1 and filler was supplied from the side feed port 3 forces.
- the screw rotation speed and the amount of extrusion are set as shown in Table 1, and the molten resin composition discharged in a strand form from the die 5 is transported by a mesh belt conveyor manufactured by Tanaka Manufacturing Co., Ltd. It was cut and obtained as a pellet.
- Liquid crystalline polyester 5 was prepared under the same extrusion conditions as in Example 1 so that the content of glass fiber 3 described below in liquid crystalline polyester 1 was 40% by weight. Next, except that liquid crystalline polyester 5 was used instead of liquid crystalline polyester 3, it was pelletized in the same manner as in Example 3, and the above test piece was produced from this pellet by an injection molding machine and evaluated. The results are shown in Table 1.
- ECS04 790DE manufactured by Nippon Electric Glass Co., Ltd. (chopped strand fiber with an average fiber diameter of 6 ⁇ and a length of 3 mm)
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- Compositions Of Macromolecular Compounds (AREA)
Description
Claims
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JP2008530988A JP5385609B2 (ja) | 2006-08-24 | 2007-08-23 | 液晶性ポリエステル組成物の製造方法 |
CN2007800315368A CN101506311B (zh) | 2006-08-24 | 2007-08-23 | 非对称电子部件 |
US12/310,130 US7980897B2 (en) | 2006-08-24 | 2007-08-23 | Asymmetric electronic parts |
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PCT/JP2007/066824 WO2008023839A1 (fr) | 2006-08-24 | 2007-08-23 | Composant électronique asymétrique |
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US (1) | US7980897B2 (ja) |
JP (1) | JP5385609B2 (ja) |
CN (1) | CN101506311B (ja) |
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WO (1) | WO2008023839A1 (ja) |
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JP2009215530A (ja) * | 2007-09-28 | 2009-09-24 | Toray Ind Inc | 液晶性樹脂組成物およびそれからなる成形品 |
WO2009141996A1 (ja) * | 2008-05-23 | 2009-11-26 | ポリプラスチックス株式会社 | 平面状コネクター |
WO2010013578A1 (ja) * | 2008-07-31 | 2010-02-04 | ポリプラスチックス株式会社 | コネクター |
JP2012107221A (ja) * | 2010-10-29 | 2012-06-07 | Sumitomo Chemical Co Ltd | 液晶ポリエステル組成物 |
WO2012090411A1 (ja) | 2010-12-28 | 2012-07-05 | 東レ株式会社 | 液晶性ポリエステル樹脂組成物及びその製造方法とそれからなる成形品 |
WO2013141396A1 (ja) * | 2012-03-21 | 2013-09-26 | 住友化学株式会社 | 液晶ポリエステル組成物、液晶ポリエステル組成物の製造方法及び成形体 |
US8545719B2 (en) | 2011-02-28 | 2013-10-01 | Sumitomo Chemical Company, Limited | Liquid crystal polyester composition and process for producing the same |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009215530A (ja) * | 2007-09-28 | 2009-09-24 | Toray Ind Inc | 液晶性樹脂組成物およびそれからなる成形品 |
JP2013014781A (ja) * | 2007-09-28 | 2013-01-24 | Toray Ind Inc | 液晶性樹脂組成物およびそれからなる成形品 |
WO2009141996A1 (ja) * | 2008-05-23 | 2009-11-26 | ポリプラスチックス株式会社 | 平面状コネクター |
CN102037620A (zh) * | 2008-05-23 | 2011-04-27 | 宝理塑料株式会社 | 平面状连接器 |
US8272879B2 (en) | 2008-05-23 | 2012-09-25 | Polyplastics Co., Ltd. | Planar connector |
WO2010013578A1 (ja) * | 2008-07-31 | 2010-02-04 | ポリプラスチックス株式会社 | コネクター |
JP2010037364A (ja) * | 2008-07-31 | 2010-02-18 | Polyplastics Co | コネクター |
JP2012107221A (ja) * | 2010-10-29 | 2012-06-07 | Sumitomo Chemical Co Ltd | 液晶ポリエステル組成物 |
US8721921B2 (en) | 2010-10-29 | 2014-05-13 | Sumitomo Chemical Company, Limited | Liquid crystal polyester composition |
WO2012090411A1 (ja) | 2010-12-28 | 2012-07-05 | 東レ株式会社 | 液晶性ポリエステル樹脂組成物及びその製造方法とそれからなる成形品 |
US8784683B2 (en) | 2010-12-28 | 2014-07-22 | Toray Industries, Inc. | Liquid crystalline polyester composition, method of producing the same and molded product manufactured from the same |
JP2018100420A (ja) * | 2011-02-28 | 2018-06-28 | 住友化学株式会社 | 液晶ポリエステル組成物 |
US8545719B2 (en) | 2011-02-28 | 2013-10-01 | Sumitomo Chemical Company, Limited | Liquid crystal polyester composition and process for producing the same |
JP2013194165A (ja) * | 2012-03-21 | 2013-09-30 | Sumitomo Chemical Co Ltd | 液晶ポリエステル組成物、液晶ポリエステル組成物の製造方法及び成形体 |
KR20140143409A (ko) | 2012-03-21 | 2014-12-16 | 스미또모 가가꾸 가부시키가이샤 | 액정 폴리에스테르 조성물, 액정 폴리에스테르 조성물의 제조 방법 및 성형체 |
WO2013141396A1 (ja) * | 2012-03-21 | 2013-09-26 | 住友化学株式会社 | 液晶ポリエステル組成物、液晶ポリエステル組成物の製造方法及び成形体 |
KR101986075B1 (ko) * | 2012-03-21 | 2019-06-07 | 스미또모 가가꾸 가부시키가이샤 | 액정 폴리에스테르 조성물, 액정 폴리에스테르 조성물의 제조 방법 및 성형체 |
JP2014074083A (ja) * | 2012-10-02 | 2014-04-24 | Kaneka Corp | 高熱伝導性樹脂成形体 |
KR20180090808A (ko) | 2015-12-09 | 2018-08-13 | 스미또모 가가꾸 가부시끼가이샤 | 액정 폴리에스테르 조성물 및 성형체 |
KR20190026037A (ko) | 2016-10-07 | 2019-03-12 | 포리프라스틱 가부시키가이샤 | 복합 수지 조성물, 및 당해 복합 수지 조성물로 성형된 전자 부품 |
Also Published As
Publication number | Publication date |
---|---|
JP5385609B2 (ja) | 2014-01-08 |
CN101506311A (zh) | 2009-08-12 |
TW200819498A (en) | 2008-05-01 |
US7980897B2 (en) | 2011-07-19 |
CN101506311B (zh) | 2011-12-28 |
JPWO2008023839A1 (ja) | 2010-01-14 |
TWI472574B (zh) | 2015-02-11 |
US20090197471A1 (en) | 2009-08-06 |
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