CN100539317C - Planar connector - Google Patents

Planar connector Download PDF

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Publication number
CN100539317C
CN100539317C CNB2005800094012A CN200580009401A CN100539317C CN 100539317 C CN100539317 C CN 100539317C CN B2005800094012 A CNB2005800094012 A CN B2005800094012A CN 200580009401 A CN200580009401 A CN 200580009401A CN 100539317 C CN100539317 C CN 100539317C
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fibrous filler
planar connector
connector
resin composition
composite resin
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CN1934756A (en
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深津博树
渡边一史
盐饱俊雄
大芝浩一
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Polyplastics Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04Reinforcing macromolecular compounds with loose or coherent fibrous material
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00Compositions of unspecified macromolecular compounds
    • C08L101/12Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2300/00Characterised by the use of unspecified polymers
    • C08J2300/12Polymers characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity

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  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The pitch-row that the present invention relates to lattice portion is spaced apart below the 2mm, the thickness of lattice portion is the following extremely thin planar connector of 0.5mm, provides performances such as mouldability, flatness, flexural deformation, thermal endurance all excellent planar connector.In (A) liquid-crystalline polymer, mix in (C) composite resin composition of (B) fibrous filler, the combined amount of (B) fibrous filler that use will mix and the relation of weight average length are controlled at the composition of particular range, and moulding obtains the planar connector that housing inside has lattice structure.

Description

Planar connector
Technical field
The present invention relates to the planar connector that housing inside such as CPU socket have lattice structure.
Background technology
Even liquid-crystalline polymer also has excellent size precision, damping and flowability in thermoplastic resin, seldom form the material of burr when being recognized as moulding.All the time, effectively utilize these characteristics, liquid-crystalline polymer is widely used as the material of various electronic components.
Particularly in recent years along with the high performance of e-machine, epoch also require high heat-resistingization (productivity that real packing technique causes improves), densification (multiple-core) and the miniaturization of connector, effectively utilize the characteristic of above-mentioned liquid-crystalline polymer, will be by glass fiber-reinforced liquid-crystalline polymer composition as connector ((investigate engineering plastics entirely ' 92~' 93), 182~194 pages, distribution in 1992, JP-A9-204951, JP-A6-240115).With regard to the planar connector that the housing inside of CPU socket representative has lattice structure, the tendency of above-mentioned heat-resistingization of height, densification and miniaturization is remarkable, is widely adopted by glass fiber-reinforced liquid-crystalline polymer composition.
But, even have the glass fiber-reinforced liquid-crystalline polymer composition of to a certain degree mobile excellence, be spaced apart below the 2mm as the lattice portion pitch-row that requires in recent years, keeping terminal lattice portion resin thickness partly is the following extremely thin planar connector of 0.5mm, and its performance is also insufficient.That is, the extremely thin planar connector of described lattice portion, then insufficient if to its lattice portion potting resin because of flowability, cause filling to be pressed and increase, the problem that the result exists the bending deformation quantity of the planar connector that obtains to increase.
In order to address this is that, consider to use the liquid-crystalline polymer composition of the good fluidity that reduces the glass fibre addition, but the problem that reflow soldering causes distortion takes place in described composition undercapacity during real the dress.
Therefore, present present situation is also to fail to obtain the planar connector that the liquid-crystalline polymer of the excellence of performance balance is made.
Summary of the invention
As mentioned above, the liquid-crystalline polymer composition used to planar connector with lattice structure, various researchs have been carried out, particularly the pitch-row of lattice portion is spaced apart below the 2mm, the thickness of lattice portion is the following extremely thin planar connector of 0.5mm, does not have all excellent material of performances such as its mouldability, flatness, flexural deformation, thermal endurance.
The inventor etc. in view of the above problems, the planar connector of making for the liquid-crystalline polymer of excellence that performance balance is provided, arduous exploration and research have been carried out, found that: in the fibre strengthening liquid-crystalline polymer composition, when certain relation arranged between the weight average length of the fibrous filler that mixes and the combined amount, can obtain all excellent planar connector of performances such as mouldability is good, flatness, flexural deformation, thermal endurance, thereby finish the present invention.
Promptly, the invention provides the planar connector that a kind of housing inside has lattice structure, this planar connector is formed by (C) composite resin composition that mixes (B) fibrous filler in (A) liquid-crystalline polymer, but combined amount of (B) fibrous filler that mixes and the relation between the weight average length, satisfy following scope (D)
[scope (D)]
X-axis is that combined amount (the % weight in (C) composite resin composition), the Y-axis of (B) fibrous filler is the weight average length (μ m) of (B) fibrous filler, is included in the range of function of following (1)~(5):
(1)X=40
(2)X=53
(3)Y=160
(4)Y=360
(5)Y=(18222/X)-84.44。
The present invention also provides above-mentioned (C) composite resin composition to have application in the planar connector of lattice structure in housing inside.
The accompanying drawing summary
[Fig. 1] is the combined amount of fibrous filler in the composite resin composition of expression the present invention regulation and the relation extents figure between the weight average length.
[Fig. 2] is the figure of the planar connector of moulding among the expression embodiment, (a) details drawing of the details drawing of expression plane graph, (b) expression right view, (c) expression front view, (d) expression A portion, (e) expression B portion.It should be noted that the numerical value unit among the figure is mm.
[Fig. 3] is the skeleton diagram of the extruder screw that uses among the embodiment of expression.
Symbol in the key diagram
The 1---resin accumulates
The 2---pitch-row at interval
The thickness of 3---lattice portion
11---master's charging aperture
12---plasticising portion
13---side charging aperture
The 14---kneading part
The 15---blow vent
The 16---die head
The 17---decompressor
Detailed description of the invention
Below, describe the present invention in detail.The liquid-crystalline polymer that uses among the present invention (A) is meant to have the melt processable polymer that can form optical anisotropy fusion phase character.The character of anisotropy fusion phase can be confirmed by the habitual polarisation inspection technique of utilizing orthogonal polarisation.More specifically, the anisotropy fusion is approved mutually really by following method enforcement: use the Leitz petrographic microscope, under blanket of nitrogen, the fusion test portion is placed on the hot ware platform of Leitz, observe with 40 times multiplying power.Be applicable to that even the fusion inactive state, polarisation also passed through as usual, the anisotropy on the display optical when liquid-crystalline polymer of the present invention was checked between orthogonal polarisation.
(A) is not particularly limited to aforesaid liquid-crystalline polymer, but is preferably aromatic polyester or aromatic polyester acid amides, and part contains the polyester of aromatic polyester or aromatic polyester acid amides also in its scope in same strand.These liquid-crystalline polymers are 0.1% weight when being dissolved in Pentafluorophenol with concentration under 60 ℃, and preferred the use has logarithm viscosity (I.V.) and be at least about 2.0dl/g, more preferably the material of 2.0~10.0dl/g.
As aromatic polyester that is applicable to liquid-crystalline polymer of the present invention (A) or aromatic polyester acid amides, especially preferably have the compound that is selected from aromatic hydroxycarboxylic acids, aromatic hydroxy amine, aromatic diamine at least more than a kind aromatic polyester, aromatic polyester acid amides as constituent.
More specifically, the example comprises:
(1) contains polyester based on aromatic hydroxycarboxylic acids and derivative thereof more than a kind or 2 kinds;
(2) contain with (a) aromatic hydroxycarboxylic acids and derivative thereof more than a kind or 2 kinds, more than a kind or 2 kinds (b) aromatic dicarboxylic acid, alicyclic dicarboxylic acid and derivative thereof and more than at least a kind or 2 kinds (c) aromatic diol, alicyclic diol, aliphatic diol and derivative thereof be main polyester;
(3) contain with (a) aromatic hydroxycarboxylic acids and derivative thereof more than a kind or 2 kinds, more than a kind or 2 kinds (b) aromatic hydroxy amine, aromatic diamine and derivative thereof and more than a kind or 2 kinds (c) aromatic dicarboxylic acid, alicyclic dicarboxylic acid and derivative thereof be main polyesteramide;
(4) contain with (a) aromatic hydroxycarboxylic acids and derivative thereof more than a kind or 2 kinds, (b) aromatic hydroxy amine, aromatic diamine and derivative thereof more than a kind or 2 kinds, more than a kind or 2 kinds (c) aromatic dicarboxylic acid, alicyclic dicarboxylic acid and derivative thereof and more than at least a kind or 2 kinds (d) aromatic diol, alicyclic diol, aliphatic diol and derivative thereof be main polyesteramide etc.As required, also can and use molecular weight regulator and above-mentioned constituent.
Constitute the particular compound that is applicable to above-mentioned liquid-crystalline polymer of the present invention (A), its preferred embodiment comprises: P-hydroxybenzoic acid, 6-hydroxyl-aromatic hydroxycarboxylic acids such as 2-naphthoic acid; 2,6-dihydroxy naphthlene, 1,4-dihydroxy naphthlene, 4, is remembered the aromatic diols such as compound of general formula (I) and general formula (II) expression down at 4 '-dihydroxybiphenyl, hydroquinones, resorcinol; Terephthalic acid (TPA), M-phthalic acid, 4,4'-diphenyldicarboxylic acids, 2, the aromatic dicarboxylic acids such as compound of 6-naphthalene dicarboxylic acids and following note general formula (III) expression; Aromatic amines such as para-aminophenol, p-phenylenediamine (PPD).
Figure C200580009401D00081
(still, X is for being selected from: alkene (C1~C4), alkylidene ,-O-,-SO-,-SO 2-,-S-,-group of CO-; Y is for being selected from :-(CH 2) n-(n=1~4) ,-O (CH 2) nThe group of O-(n=1~4))
Be applicable to that particularly preferred liquid-crystalline polymer of the present invention (A) is for being the aromatic polyester of main composition unit composition with P-hydroxybenzoic acid, 6-hydroxyl-2-naphthoic acid.
Being used for (C) of the present invention composite resin composition mixes (B) fibrous filler and obtains at above-mentioned (A) liquid-crystalline polymer, but combined amount of (B) fibrous filler that mixes and the relation between the weight average length, must satisfy following scope (D)
[scope (D)]
X-axis is that combined amount (the % weight in (C) composite resin composition), the Y-axis of (B) fibrous filler is the weight average length (μ m) of (B) fibrous filler, is included in the range of function of following (1)~(5):
(1)X=40
(2)X=53
(3)Y=160
(4)Y=360
(5)Y=(18222/X)-84.44。
Above-mentioned scope (D) is a scope shown in the Z of Fig. 1, and it is above and below (4) Y=360 μ m that the weight average length of (B) fibrous filler need satisfy (3) Y=160 μ m in principle.
If (B) the weight average length less than 160 μ m of fibrous filler then can reduce the reinforcement effect, do not reach desirable effect even increase combined amount yet.And, also can reduce flowability even then reduce combined amount if (B) weight average length of fibrous filler surpasses 360 μ m, can not get the connector of excellent flatness.The weight average length that it should be noted that said among the present invention (B) fibrous filler refers to the value in the moulding product, measures by method described later.In addition, the fiber of (B) fibrous filler directly being not particularly limited, directly is filler about 5~15 μ m but use fiber usually.
As for the combined amount (blending ratio in (C) composite resin composition) of (B) fibrous filler, require to satisfy more than (1) X=40% weight and below (2) X=53% weight.If (B) combined amount less than 40% weight of fibrous filler, even then use the long fibrous filler of weight average length, its reinforcement effect is also very little, does not reach desirable effect.And,, also can reduce flowability even then use the short fibrous filler of weight average length if (B) combined amount of fibrous filler surpasses 53% weight, can not get the connector of excellent flatness.
Above-mentioned scope (D) needs further to satisfy the important document of (5) Y=(18222/X)-84.44.Promptly, even be included in the range of function of above-mentioned (1)~(4), combined amount increase (more than 41% weight) along with (B) fibrous filler, if do not use short (B) fibrous filler of weight average length, the balance of mobile and intensity flatness also can variation, can not get Expected Results of the present invention.
Be used for (B) of the present invention fibrous filler, the example comprises: glass fibre, charcoal fiber, whisker, inorganic series fiber, ore series fiber etc., but preferred glass fibers.
Be used for composite resin composition of the present invention (C), require it mobile excellent, if stipulate from the viscosity aspect, then preferably use the capillary type flow graph of L=20mm, d=1mm, 360 ℃ of temperature, under the shear rate 1000/s, the apparent melt viscosity of measuring according to ISO11443 is the material below the 55Pas.
Composition with described apparent melt viscosity, (10~100Pas is preferably 10~40Pas), in satisfying above-mentioned condition and range, can obtain when wherein mixing (B) fibrous filler to use the liquid-crystalline polymer of general melt viscosity.
Be not particularly limited obtaining described method for compositions, but use melting mixing usually by extruder.But, unavailable often from the common extrusion method of side mouth feed fiber shape filler to the liquid-crystalline polymer of fusion.Therefore, need to use: the liquid-crystalline polymer composition that the fibrous filler of a melting mixing is mixed once more melting mixing method, from the side mouth method etc. of the liquid-crystalline polymer of feed fibrous filler and graininess (more than the particle diameter 1mm) simultaneously.The preferred few method of thermal history from side mouth feed particles shape liquid-crystalline polymer.In addition, the also preferred double screw extruder of side charging easily of the extruder of use.
By moulding (C) of the present invention composite resin composition, can obtain various planar connectors, to the lattice portion pitch-row that did not in the past provide with industrial applicibility be spaced apart below the 2mm, keep that the thickness of terminal lattice portion resin part is below the 0.5mm, the height of finished product integral body is that extremely thin planar connector below the 5.0mm has significant effect.
If be described in more detail described planar connector, the connector shown in Figure 2 with the embodiment moulding has hundreds of pinhole numbers in the finished product about 40mm * 40mm * 1mm.As shown in Figure 2, said planar connector among the present invention, can certainly be in lattice portion peristome of a size suitable.
As shown in Figure 2, (C) composite resin composition of the application of the invention, can make good forming ability, the pitch-row that is shaped to lattice portion is spaced apart 2mm following (1.2mm), keeps terminal lattice portion resin thickness partly is the extremely thin planar connector of 0.5mm following (0.18mm), and its flatness is also excellent.
If stipulate flatness with numerical value, under 230~280 ℃ of maximum temperatures via before the IR solder reflow process that is used for the real dress in surface, its flatness is below the 0.09mm, and the difference of flatness before and after the reflow soldering is below the 0.02mm, can be called to have excellent flatness in the practicality.
The forming method that acquisition is had described excellent flatness connector has no particular limits, but the preferred notes pressure method of using economy.In order to press the connector that obtains having described excellent flatness by annotating, importantly use above-mentioned liquid-crystalline polymer composition, but the preferred condition of molding of selecting not have residual internal stress.Press in order to reduce filling, the residual internal stress of gained connector is reduced, the barrel zone temperature of make-up machine, be preferably the temperature more than fusing point T ℃ of liquid-crystalline polymer, if barrel zone temperature is too high, then along with the generations such as decomposition of resin from problems such as the machine barrel nozzle flow go out, so barrel zone temperature be T ℃~(T+30) ℃, be preferably T ℃~(T+15) ℃.In addition, mold temperature is preferably 70~100 ℃.Then can cause the mobile bad of potting resin composition if mold temperature is low, not preferred; Then can produce problem such as burr if mold temperature is too high, not preferred.Annotate pressure speed preferably with the speed moulding more than the 150mm/sec.Even if annotate the low moulding product that then can only obtain filling molding product not or obtain complete filling of pressure speed, press the high residual internal stress change that makes the moulding product greatly because of filling, can only obtain the bad connector of flatness.
It should be noted that, add nucleator, carbon black, the inorganic additives such as pigment, antioxidant, stabilizer, plasticizer, lubricant, release agent and fire retardant such as pigment of firing in (C) composite resin composition, the composition that obtains having desired characteristic is also contained in the scope of said among the present invention (C) composite resin composition.
Embodiment
Below, specify the present invention by embodiment, but the invention is not restricted to these embodiment.It should be noted that the physical property measurement among the embodiment carries out by the following method with test.
(1) mensuration of the weight average length of glass fibre
The 5g resin composition pellet was heated 2 hours ashing down at 600 ℃.Ash residue is well dispersed in the 5% polyethylene glycol aqueous solution, moves on in the plate with suction pipe then, examine under a microscope glass fibre.Use image analysis apparatus ((strain) ニ レ コ system LUZEX FS) to measure the weight average length of glass fibre simultaneously.It should be noted that when carrying out graphical analysis, used subprogram, overlapping fiber is separated one by one, to obtain length separately.It should be noted that forecloses the glass fibre below the 50 μ m measures.
(2) apparent melt viscosity
Use the capillary type flow graph (the smart machine-processed キ ャ ピ ロ グ ラ Off 1B type of (strain) Japan) of L=20mm, d=1mm, under 360 ℃ of temperature, shear rate 1000/s, measure apparent melt viscosity according to ISO11443.
(3) mensuration of connector flatness
By following condition of molding, the resin composition pellet notes are pressed into planar connector shown in Figure 2 (pinhole number 494 pins), the whole size of described planar connector is 39.82mm * 36.82mm * 1mm t, central portion has the perforate of 19.02mm * 19.02mm, and lattice portion pitch-row is spaced apart 1.2mm.
It should be noted that cast gate adopts the membrane gate that accumulates the reverse side injection from resin, cast gate thickness is 3mm.
On the quiet desk that is placed on level of the connector that obtains, use the Network イ Star Network PVC ジ ョ Application 404PROCNC determining image machine of ミ Star ト ヨ system to measure the height of connector.At this moment, apart from the position of connector ends 0.5mm, measure at interval by 10mm, the difference of maximum height and minimum constructive height is a flatness.
Further use the made RF-300 that large-scale desk-top counter-current welding equipment is housed of Japanese パ Le ス technical research, be under 5 minutes the condition after the heating in 250 ℃ of maximum temperatures, heating time, measure flatness according to the method described above, obtain the poor of flatness before and after the reflow soldering.
[condition of molding]
Make-up machine: FANUC α-50C (path length nozzle in the use)
Barrel zone temperature: 350 ℃~350 ℃~340 ℃~330 ℃ (nozzle)
Mold temperature: 80 ℃
Annotate pressure speed: 200mm/sec
Packing pressure: 29MPa
Filling time: 0.08sec
Dwell time: 1sec
Cooling time: 5sec
Screw rod revolution: 120rpm
Screw back pressure: 0.5Mpa
(4) bending modulus
Use 125mm * 12.7mm * 0.8mm to annotate compressing tablet, measure according to ASTM D790.
Embodiment 1~5 and comparative example 1~9
According to above-mentioned condition, preparation contains the above-mentioned test film of the liquid-crystalline polymer composition of glass fibre, when estimating, obtains the result shown in the table 2.
[preparation condition]
(use composition)
Polymer: liquid-crystalline polymer particle (polymer plastic (strain) system, ベ Network ト ラ E950i), 335 ℃ of fusing points, the base polymer of viscosity 30Pas (under 350 ℃, shear rate 1000/s, measuring), particle size: about 5~3mm * about 3~2mm * about 3~1mm
Glass fibre
(1) fiber that uses in embodiment 1~5, the comparative example 1~8;
Rising sun fibrous glass (strain) system CS03JA419 (the short chopping bundle fibers of fiber footpath 10 μ m)
(2) fiber that uses in the comparative example 9;
(strain) system PF70 (comminuted fibres of fiber footpath 10 μ m, the long 80 μ m of fiber) is spun in day east
Lubricant: Japanese grease (strain) system ユ ニ ス -H-476
(mixing facilities)
Extruder: JSW's system, twin shaft screw extruder TEX-30 α (screw rod footpath 32mm, L/D:38.5)
The screw rod skeleton diagram of extruder as shown in Figure 3.
Main charging aperture 11:C1
12:C4~the C5 of plasticizing portion (constitute: from upstream side, (suitable) mediated in the same way, and oppositely (contrary) mediated, length 128mm)
Side charging aperture 13:C5
Kneading part 14:C6~C8 (constitute: from upstream side: mediate in the same way, orthogonal is mediated, and oppositely mediates, and left-hand thread is mediated in the same way, oppositely mediates left-hand thread, length 352mm)
The feeder of main charging aperture: the feeder of the weightless feeder side of the screw of JSW's system charging aperture:
Particulate resin: the weightless feeder of the screw of K-TRON society system
Glass fibre: the weightless feeder of the screw of JSW's system
(extrusion condition)
Barrel zone temperature: the machine barrel C1 that has only main charging aperture 11 is 200 ℃, and other barrel zone temperature is 350 ℃.
Die head temperature: 350 ℃
(the mixing and extrusion method of composition)
Use above-mentioned double screw extruder, supply with the liquid-crystalline polymer particle from main charging aperture 11 and side charging aperture 13, lubricant is supplied with from main charging aperture 11, and glass fibre is supplied with from side charging aperture 13.The side charging aperture uses twin-screw side feeder to supply with, and the operating weight feeder is controlled at the ratio of liquid-crystalline polymer particle, lubricant, glass fibre the ratio of table 1.Screw rod revolution and extrusion capacity are pressed table 1 and are set, and use Tanaka to make made netted conveyer belt, and cool off with atomizer spray water on the wire molten resin composition limit that the limit carrying extrudes from die head 16, shear then and obtain particle.This particle is made above-mentioned test film by injection molding machine, when estimating, obtain the result shown in the table 2.
It should be noted that in the various composite resin compositions of embodiment, comparative example, the combined amount of its glass fibre and the relation between the weight average length, as shown in Figure 1.
Figure C200580009401D00151
Table 2
Glass fibre addition (% weight) The weight average fiber length of glass fibre (μ m) Melt viscosity (Pas) Flatness (mm) before the reflow soldering Poor (mm) of the flatness before and after the reflow soldering Bending modulus (GPa)
Embodiment 1 40 320 40 0.073 0.009 16.2
Embodiment 2 40 190 36 0.059 0.003 15.6
Embodiment 3 40 226 31 0.048 0.002 15.6
Embodiment 4 45 264 37 0.083 0.009 18.5
Embodiment 5 50 255 39 0.083 0.007 20.0
Comparative example 1 30 214 32 0.061 0.045 14.0
Comparative example 2 35 370 57 0.073 0.021 17.8
Comparative example 3 35 430 59 0.069 0.027 17.9
Comparative example 4 35 229 32 0.067 0.102 15.8
Comparative example 5 40 397 56 0.092 0.010 19.4
Comparative example 6 45 359 60 * * 20.5
Comparative example 7 50 315 67 * * 20.9
Comparative example 8 55 305 80 * * 22.0
Comparative example 9 40 80 57 0.072 0.088 15.5
*Because of the flowability difference is had to unfilled moulding product.

Claims (5)

1. planar connector that housing inside has lattice structure, this planar connector is formed by (C) composite resin composition that mixes (B) fibrous filler in (A) liquid-crystalline polymer, but the combined amount and the relation between the weight average length of (B) fibrous filler that mixes satisfy following scope (D)
[scope (D)]
X-axis be (B) fibrous filler combined amount promptly the % weight in (C) composite resin composition, Y-axis be the weight average length (μ m) of (B) fibrous filler, be included in the range of function of following (1)~(5):
(1)X=40
(2)X=53
(3)Y=160
(4)Y=360
(5)Y=(18222/X)-84.44。
2. the planar connector of claim 1, wherein connector is that the pitch-row of lattice portion is spaced apart that 2mm is following, the thickness of lattice portion is that 0.5mm is following, the finished product whole height is below the 5.0mm.
3. claim 1 or 2 planar connector, (C) composite resin composition wherein uses the capillary type flow graph of L=20mm, d=1mm, 360 ℃ of temperature, under the shear rate 1000/s, when measuring according to ISO11443, its apparent melt viscosity is below the 55Pas.
4. claim 1 or 2 planar connector, this planar connector is under 230~280 ℃ of maximum temperatures, via the flatness before the IR solder reflow process that is used for the real dress in surface is below the 0.09mm, and the difference of the flatness before and after the reflow soldering is below the 0.02mm.
5. the planar connectors of claim item 1 or 2 records, (C) composite resin composition wherein uses the capillary type flow graph of L=20mm, d=1mm, 360 ℃ of temperature, under the shear rate 1000/s, when measuring according to ISO11443, its apparent melt viscosity is below the 55Pas; Under 230~280 ℃ of maximum temperatures, be below the 0.09mm via the flatness before the IR solder reflow process that is used for the real dress in surface, and the difference of the flatness before and after the reflow soldering is below the 0.02mm.
CNB2005800094012A 2004-03-26 2005-03-24 Planar connector Active CN100539317C (en)

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JP2004092020A JP4717366B2 (en) 2004-03-26 2004-03-26 Planar connector

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CN100539317C true CN100539317C (en) 2009-09-09

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JP5826404B2 (en) 2012-09-27 2015-12-02 ポリプラスチックス株式会社 Composite resin composition and planar connector molded from the composite resin composition
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