CN100415826C - Phenol resin composition - Google Patents
Phenol resin composition Download PDFInfo
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- CN100415826C CN100415826C CNB2004800195945A CN200480019594A CN100415826C CN 100415826 C CN100415826 C CN 100415826C CN B2004800195945 A CNB2004800195945 A CN B2004800195945A CN 200480019594 A CN200480019594 A CN 200480019594A CN 100415826 C CN100415826 C CN 100415826C
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Abstract
A phenol resin composition, characterized in that it comprises a phenol resin and a boemite having an average particle diameter (shorter diameter) of 100 nm or less; and the phenol resin composition, which further comprises a benzoxazine resin in such an amount that the mass ratio of the phenol resin to the benzoxazine resin is in the range of 95/5 to 25/75. In a specific embodiment, the boemite has an aspect ratio of 1 to 100, the phenol resin composition further comprises an alumina based compound as a filler, or the composition contains boemite in an amount of 1 to 150 parts by mass relative to 100 parts by mass of a phenol resin.
Description
Technical field
The present invention relates to the phenol resin composition of heat conductivity and physical strength excellence, particularly heat conductivity and physical strength excellence and operation and the resin combination that contains resol and benzoxazine colophony that has excellent formability.
Background technology
All the time, because phenol resin composition is in aspect excellences such as thermotolerance, physical strength, dimensional stabilitys, therefore be used for electrical and electronic parts and automobile with parts etc.In this field,, the problem of degradation is arranged owing to the heating and the use in the high temperature atmosphere of parts itself.Therefore require to improve the thermal conductivity of material.
Problem hereto, studied by using graphite and carbon fiber to improve the method for the thermal conductivity of material as packing material, but therefore these body materials have insulation resistance and descend significantly owing to have electroconductibility, thereby are difficult to be applicable to the problem of electrical and electronic parts.In addition, as weighting agent, also use the high body materials of thermal conductivity such as SiO 2 powder and alumina powder sometimes, but in order to improve thermal conductivity, must mix these body materials in volume ground, and the problem (spy opens the 2002-220507 communique) of mechanical strength degradation is also arranged.
In addition, what add for the mechanical characteristics of improving resin combination in the past and thermotolerance is the fibrous weighting material of representative with the glass fibre, the problem of (anisotropy) that creates a difference of character, the particularly linear expansivity with resulting molding on the flow direction when being shaped and the perpendicular direction.In order to address these problems, known have that to use physical dimension be that (500nm～15000nm), aspect ratio are that 10～100 boehmite is as weighting material with use resol as its resin (spy opens the 2001-261976 communique) to 0.5～15 μ m.But the heat conductivity of talkative these compositions, physical strength, mixing operation, plasticity are not enhanced simultaneously.
On the other hand, owing to also have the flowability of material to descend, thereby destroy the problem of mixing operation and plasticity, therefore attempt using comparing with general in the past resol, the benzoxazine colophony of the low and good fluidity of the melt viscosity before solidifying, thus guarantee the flowability (spy opens flat 11-071498 communique and Te Kai 2001-064480 communique) of material.But when using benzoxazine colophony, physical strength is insufficient, requires to have the more resin combination of excellent properties.
Summary of the invention
The object of the present invention is to provide the phenol resin composition of a kind of heat conductivity and physical strength excellence.
Another object of the present invention is to provide a kind of heat conductivity and physical strength excellence and contain the good resol of mixing operation, plasticity and (thermoset) resin combination of benzoxazine colophony.
Present inventors further investigate in order to overcome the problems referred to above, found that by in resol, mixing boehmite with specified particle diameter, can obtain the phenol resin composition of heat conductivity and physical strength excellence, be found to be the basis with this and study repeatedly, thereby finished the present invention.
In addition, present inventors are in order further to improve the characteristic of these resin combinations, above-mentioned phenol resin composition is furtherd investigate, found that by in the hybrid resin of resol and benzoxazine colophony, mixing boehmite with specified particle diameter, heat conductivity and physical strength excellence be can access and the good resol of mixing operation, plasticity and the resin combination of benzoxazine colophony contained, be found to be the basis with this and further study repeatedly, thereby the improvement of having finished the invention described above is invented.
That is, phenol resin composition of the present invention is characterised in that, it contains resol and is 100nm or following needle-like or columned boehmite based on the median size that minor axis is calculated.
In addition, especially, the resin combination that contains resol and benzoxazine colophony of the present invention is characterised in that, resol and benzoxazine colophony are used in combination in 95/5～25/75 scope with mass ratio, and to contain the median size of calculating based on minor axis be 100nm or following needle-like or columned boehmite.
Embodiment
Phenol resin composition of the present invention, by mixing the median size of calculating based on minor axis is 100nm or following needle-like or columned boehmite, compare with phenol resin composition in the past, physical strength and thermal conductivity improve, and the shaped material that is suitable for using with electrical and electronic parts such as semiconductor-encapsulating material and trolley part is the various uses such as mechanical part, plywood and sheet material of representative.
In addition, the resin combination of resol and benzoxazine colophony that contains of the present invention is by being used in combination resol and benzoxazine colophony as thermosetting resin, and further mixing the median size of calculating based on minor axis is 100nm or following needle-like or columned boehmite, can access when having high mechanical strength and thermal conductivity, operation and the also excellent composition of plasticity.Therefore, the shaped material that also is suitable for using etc. with electrical and electronic parts such as semiconductor-encapsulating material and trolley part is the various uses such as mechanical part, plywood and sheet material of representative.
Use lacquer to set as resol among the present invention with type resol or solvable type phenolic aldehyde.These can use separately respectively, also can be used in combination.Wherein be fit to use lacquer to use type resol, at this moment, with respect to the lacquer resol of 100 mass parts, the urotropine about mixing 5～40 mass parts is as solidifying agent.
Employed boehmite among the present invention is to contain at least 90% or the mineral compound of above hydroxide aluminum oxide with general formula A1O (OH) expression.The median size of calculating based on minor axis of using boehmite among the present invention is preferably 1～100nm as 100nm or following fine material, and more preferably 5～50nm most preferably is 10～20nm.In addition, the shape of boehmite is from easy acquisition and improve the consideration of physical strength aspect, be needle-like or cylindric, and use the aspect ratio {=median size calculated based on major diameter/calculate based on minor axis median size } to be preferably 1～100, more preferably 5～50 boehmite.In the present invention, will have the boehmite of 100 nanometers or following fine sizes like this hereinafter referred to as " nano aluminium oxide ".
The combined amount of nano aluminium oxide determines aptly according to the require rerum natura and the purposes of phenol resin composition among the present invention, with respect to the resol of 100 mass parts, preferably mixes 1～150 mass parts, more preferably 5～100 mass parts.If be less than 1 mass parts, then can't show the performance of physical strength and heat conductivity fully; If more than 150 mass parts, then mobile decline is difficult to mixing and shaping, and be therefore not preferred.
When further containing benzoxazine colophony in the present invention, the combined amount of nano aluminium oxide determines aptly according to require rerum natura and the purposes that contain the resin combination of resol and benzoxazine colophony, with respect to 100 mass parts of resol and Ben Fen oxazine resin total amount, preferably mix 1～150 mass parts, 5～100 mass parts more preferably.If be less than 1 mass parts, then can't show the performance of physical strength and heat conductivity fully; If more than 150 mass parts, then mobile decline is difficult to mixing and shaping, and be therefore not preferred.
In the compositions of thermosetting resin that contains resol and benzoxazine colophony of the present invention, resol and benzoxazine colophony use in mass ratio is 95/5～25/75 scope, are preferably 90/10～30/70 (mass ratio).If resol more than this scope, then has the tendency of mixing operation variation; If be less than this scope, the tendency of mechanical strength degradation is arranged then.
In addition, employed benzoxazine colophony is the thermosetting resin that intramolecularly has two hydrogen benzoxazine rings among the present invention, for example can list with following general formula (1)～(4) represented compound.
(in the formula, R
1Expression can have substituent alkyl, can have substituent aryl, can have substituent alkenyl, can have substituent alkynyl maybe can have substituent aralkyl.R
2The expression hydrogen atom, maybe can have substituent alkyl, can have substituent aryl, can have substituent alkoxyl group, can have substituent alkenyl, can have substituent alkynyl, can have substituent aralkyl or halogen atom, 1 the replacing of nitro, cyano group, carbalkoxy, hydroxyl, alkyl (aryl) alkylsulfonyl etc., 2, replace, 3 replace or 4 groups that replace.)
(in the general formula (2), R
1Expression can have substituent alkyl, can have substituent aryl, can have substituent alkenyl, can have substituent alkynyl maybe can have substituent aralkyl.R
3The expression singly-bound, maybe can have substituent alkylidene group, can have substituent arylidene, can have substituent alkylene group, can have substituent alkynylene, can have substituent inferior aralkyl or carbonyl, ether, thioether group, silicylene, siloxanes, methylene radical ether, ester group, alkylsulfonyl etc.R
4And R
5Can be identical, also can be different, the expression hydrogen atom, maybe can have substituent alkyl, can have substituent aryl, can have substituent alkoxyl group, can have substituent alkenyl, can have substituent alkynyl, can have substituent aralkyl or halogen atom, 1 the replacing of nitro, cyano group, carbalkoxy, hydroxyl, alkyl (aryl) alkylsulfonyl etc., 2 replace or 3 groups that replace.)
(in the general formula (3), R
1Expression can have substituent alkyl, can have substituent aryl, can have substituent alkenyl, can have substituent alkynyl maybe can have substituent aralkyl.R
2The expression hydrogen atom, maybe can have substituent alkyl, can have substituent aryl, can have substituent alkoxyl group, can have substituent alkenyl, can have substituent alkynyl, can have substituent aralkyl or halogen atom, nitro, cyano group, carbalkoxy, hydroxyl, alkyl (aryl) alkylsulfonyl etc.N is 2～200 integer.)
(in the general formula (4), R
1Expression can have substituent alkyl, can have substituent aryl, can have substituent alkenyl, can have substituent alkynyl maybe can have substituent aralkyl.R
2The expression hydrogen atom, maybe can have substituent alkyl, can have substituent aryl, can have substituent alkoxyl group, can have substituent alkenyl, can have substituent alkynyl, can have substituent aralkyl or halogen atom, nitro, cyano group, carbalkoxy, hydroxyl, alkyl (aryl) alkylsulfonyl etc.M is 0～100 integer.)
Among the present invention, preferred especially have flowability when uncured and solidify after the mechanical properties excellence with the compound shown in the above-mentioned general formula (2).
In the phenol resin composition of the present invention resin combination of resol and benzoxazine colophony (or contain), can also mix inorganic filling material and various packing materials such as agent packing material are arranged according to purpose.
As inorganic filling material, can list lime carbonate, barium sulfate, calcium sulfate, silicon-dioxide, perlite, volcanic ash particle (Shirasu-balloon), diatomite, alumina series compound, Calucium Silicate powder, talcum, glass fibre, carbon fiber, boron fibre, silicon carbide fiber, potassium titanate fiber etc.As organic filler material, can list wood powder, glued board powder, thermosetting resin cured matter powder, aramid fibre, base cloth, paper pulp, rubber, nutshell particle (cashew dust) etc.
Wherein, preferred aluminum oxide based compound among the present invention.As the alumina series compound, can list with the aluminum oxide kaolin, clay, mica, aluminum borate, vermiculite, montmorillonite of being representative etc. and contain Al
2O
3The material of composition, preferred especially aluminum oxide.
The combined amount of these packing materials is not particularly limited, and with respect to the resol of 100 mass parts, preferably mixes 10～500 mass parts, more preferably 100～400 mass parts.
When further containing benzoxazine colophony among the present invention, the combined amount of packing material is preferably mixed 10～600 mass parts with respect to 100 mass parts of resol and benzoxazine colophony total amount, more preferably 100～500 mass parts.
In addition, in phenol resin composition of the present invention, thermoplastic resin and the thermosetting resin beyond the resol can be used in combination as required.
As above-mentioned thermoplastic resin, can list engineering plastics such as widely used plastics such as polyethylene, polypropylene, polyvinyl chloride, polymeric amide, ABS resin, polyester, polycarbonate, polyacetal, polyphenylene sulfide, polyphenylene oxide, polysulfones, polyethersulfone, polyetherimide, polyether-ether-ketone etc.
In addition, as above-mentioned thermosetting resin, can list benzoxazine colophony, Resins, epoxy, unsaturated polyester, vinyl ester, Synolac, silicone resin, diallyl phthalate, bismaleimide-triazine resin, polyimide, urea resin, contain melamine resin, urethane etc.
In the resol of the present invention resin of resol and benzoxazine colophony (or contain) composition, employed various additives in the phenol resin composition be can add in the past as required, such parting agent of calcium stearate and Zinic stearas or lubricant for example can be added, hindered phenol is that antioxidant, hindered amine are that photostabilizer, benzotriazole are tinting materials such as organosilane couplers such as UV light absorber, γ-glycidoxypropyltrime,hoxysilane and aminopropyl triethoxysilane and carbon black etc.
In the present invention, quantitative resol of hybrid regulatory and nano aluminium oxide mix packing material and additive etc. according to purpose again; The perhaps quantitative resol of hybrid regulatory, benzoxazine colophony and nano aluminium oxide, mix packing material and additive etc. according to purpose again, after these materials are added hot milling with pressurization kneader, twin-screw extruder, Henschel mixer, mixing hot-rolling etc., by pulverizing or granulating, can make the resin combination that contains resol and nano aluminium oxide respectively or contain the resin combination of resol, benzoxazine colophony and nano aluminium oxide.Particularly in the present invention, for these rerum naturas that contain the resin combination of resol are showed fully, preferably by in fusion in advance resol in add nano aluminium oxide or by carrying out the method for fusion etc. after resol and nano aluminium oxide are mixed, after nano aluminium oxide is disperseed equably, mix packing material and additive and add hot milling.Resulting like this phenol resin composition can be made required molding by various manufacturing process such as injection molding forming, extrusion molding, transfer moudlings.Will be further with benzoxazine colophony as the compositions of thermosetting resin of moiety during as shaped material, can be in above-mentioned operation add and mix with packing material and additive etc.
Phenol resin composition of the present invention shows the reason of excellent heat conductivity and physical strength and unclear, but infer it to be because by with resol and nano aluminium oxide melting mixing or add hot milling, nano aluminium oxide is disperseed in resin combination equably, and nano aluminium oxide and the phenol hydroxyl generation Chemical bond of resol of a part, particularly when having mixed the alumina series inorganic filling material, nano aluminium oxide and aluminum oxide become the interactional state of bringing into play coupler.
Especially, the compositions of thermosetting resin that contains resol and benzoxazine colophony and further contain nano aluminium oxide that the present invention relates to shows the reason of excellent heat conductivity and physical strength and unclear, but infers it is owing to caused with the reaction shown in the following general formula (5).
(in the general formula (5), R
1Expression can have substituent alkyl, can have substituent aryl, can have substituent alkenyl, can have substituent alkynyl maybe can have substituent aralkyl.)
In addition, the special function when further being added with benzoxazine colophony, think by adding hot milling resol, benzoxazine colophony and nano aluminium oxide, nano aluminium oxide is disperseed in resin combination equably, and, because the nano aluminium oxide surface is reactive big, therefore the nano aluminium oxide of a part and the phenol hydroxyl of resol and the phenol hydroxyl that is generated by the ring-opening reaction of benzoxazine colophony carry out Chemical bond, and resin combination of the present invention thus has excellent thermal conductivity and physical strength.On the other hand, when using minor axis greater than the boehmite of 100nm, think that though boehmite and the phenol hydroxyl of resol of a part and the phenol hydroxyl that is generated by the ring-opening reaction of benzoxazine colophony carry out Chemical bond, reactive low, and the Chemical bond when being not so good as nano aluminium oxide.
In addition, particularly when having mixed the alumina series inorganic filling material, can infer that nano aluminium oxide and aluminum oxide become the interactional state of performance coupler, and resol and nano aluminium oxide securely in conjunction with, therefore can access the resin combination of physical strength excellence.
Embodiment
Further describe the present invention by embodiment, but the present invention is not limited to these embodiment.In addition, according to method shown below the performance of the resulting phenol resin composition resin combination of resol and benzoxazine colophony (or contain) is estimated.
(1) thermal conductivity
Measure by probe method.
(2) flexural strength, modulus in flexure
With JISK6911 is benchmark, measures flexural strength and modulus in flexure.
(3) mixing operation
The resin combination that range estimation confirms to contain resol and benzoxazine colophony to mix the hot-rolling surface adhere to have or not.
(4) plasticity
Range estimation confirms whether resulting molding is uneven.
In following embodiment, successively to as main example of the present invention to contain resol and to be that 100nm or following boehmite are the phenol resin composition of principal character and to contain resol, benzoxazine colophony and to be that 100nm or following boehmite are that the phenol resin composition (thermosetting resin) of principal character describes based on the median size that minor axis is calculated based on the median size that minor axis is calculated.
In embodiment 1～6, to relating to contain resol and to be that 100nm or following boehmite are that the embodiments of the invention of the phenol resin composition of principal character describe based on the median size that minor axis is calculated.In addition, will compare with the resulting characteristic of phenol resin composition of the comparative example 1～3 that constitutes by discontented unabridged version invention by the resulting characteristic of these resin combinations, thus the action effect that clearly can access by the present invention.
In embodiment 7～14, to relating to contain resol, benzoxazine colophony and to be that 100nm or following boehmite are that the embodiment of the present application of the phenol resin composition (compositions of thermosetting resin) of principal character describes based on the median size that minor axis is calculated.In addition, to compare with the resulting characteristic of phenol resin composition of the comparative example 4～8 that constitutes by discontented unabridged version invention by the resulting characteristic of these resin combinations, thus clearly by involved in the present invention, particularly contain the action effect that the resin combination as the resol of resinous principle and benzoxazine colophony can access.
About the foregoing description and comparative example, the item that should note be comparative example 4 be equivalent to the present invention relates to containing resol and to be that 100nm or following boehmite are " embodiment " of the phenol resin composition of principal character based on the median size that minor axis is calculated, but the meaning that to be called " comparative example " here be expression compares with the embodiment that further contains benzoxazine colophony as other form of the present invention.
Embodiment 1
Lacquer type resol (Asahi Organic Chem Ind's manufacturing with 100 mass parts, CP504) be heated to 180 ℃, make it become molten state, add boehmite { the Saint Gobain society manufacturing of 5.4 mass parts this moment, CAM 9010, the median size of calculating based on minor axis is 10nm, the median size of calculating based on major diameter is 90nm, aspect ratio is that 9} and melting mixing are after 2 hours, (Nippon Light Metal Co., Ltd makes the aluminum oxide of remix 362 mass parts, A-21, median size is 80 μ m), the urotropine of 10 mass parts, the stearic acid of 1 mass parts, institute's blended material is carried out mixing back with the mixing hot-rolling pulverize, obtain phenol resin composition.
Is that 180 ℃, set time are that 15 minutes, mold pressure are extrusion molding under the molding condition of 5t with resulting resin combination in die temperature, obtains JIS bend specimen (80 * 10 * 4mm).
Further resulting sample is carried out 200 ℃ * 8 hours post cure, and measure thermal conductivity, flexural strength and modulus in flexure.These the results are shown in table 1.
Embodiment 2
Except with blending ratio according to changing shown in the table 1, other makes resin combination similarly to Example 1, obtains behind the sample performance being estimated.The results are shown in table 1.
Embodiment 3
Lacquer type resol (Asahi Organic Chem Ind's manufacturing of 100 mass parts will have been mixed, CP504), { Saint Gobain society makes the boehmite of 13.6 mass parts, CAM 9010, the median size that the median size of calculating based on minor axis is 10nm, calculate based on major diameter is 90nm, aspect ratio is aluminum oxide (Nippon Light Metal Co., Ltd's manufacturing of 9}, 352 mass parts, A-21, median size is 80 μ m), the stearic material of the urotropine of 10 mass parts, 1 mass parts carries out mixing back with the mixing hot-rolling and pulverizes, and obtains phenol resin composition.Afterwards, make sample similarly to Example 1, performance is estimated.The results are shown in table 1.
Embodiment 4～6
Except mixing according to the ratio shown in the table 1, other make resin combination and sample similarly to Example 3, and performance is estimated.The results are shown in table 1.The AM-21 that SP 456A, the aluminum oxide (median size is 4 μ m) that CP 701K, the ammonia soluble phenolic resin that benzyl oxide type soluble phenolic resin in the table has used Asahi Organic Chem Ind to make used Asahi Organic Chem Ind to make used Sumitomo Chemical Company Ltd to make.
Comparative example 1～3
Except mixing in the ratio shown in the table 1, other makes resin combination and sample similarly to Example 3, and performance is estimated.The results are shown in table 1.In comparative example 2, as boehmite, the median size that the Serasyuru BMB{ that has used the river to close the manufacturing of lime Industrial Co., Ltd calculates based on minor axis is 1 μ m, and aspect ratio is 2}.In comparative example 1 and 3, do not use boehmite.In addition, in comparative example 3, as glass fibre, the Chopped Strand ECS03-167S that has used CentralGlass Co., Ltd. to make.
Embodiment 7
Lacquer resol (Asahi Organic Chem Ind's manufacturing of 81 mass parts will have been mixed, CP506FB), the urotropine of 9 mass parts, (Shikoku Chem makes the benzoxazine colophony of 10 mass parts, the F-a type), { Saint Gobain society makes the boehmite of 30 mass parts, CAM9010, the median size of calculating based on minor axis is 10nm, the median size of calculating based on major diameter is 90nm, aspect ratio is 9}, (Nippon Light Metal Co., Ltd makes the aluminum oxide of 453 mass parts, A-21, median size is 80 μ m) material carry out mixing back with the mixing hot-rolling and pulverize, obtain compositions of thermosetting resin.
Is that 180 ℃, set time are that 15 minutes, mold pressure are extrusion molding under the molding condition of 3.5t with resulting resin combination in die temperature, obtains JIS bend specimen (80 * 10 * 4mm).
Further resulting sample is carried out 180 ℃ * 4 hours post cure, and measure thermal conductivity, flexural strength and modulus in flexure.These the results are shown in table 2.
Embodiment 8～14
Except mixing according to the ratio shown in the table 2, other obtains resin combination and sample similarly to Example 7, performance is estimated.The results are shown in table 2.
Comparative example 4～8
Except mixing according to the ratio shown in the table 3, other obtains resin combination and sample similarly to Example 7, performance is estimated.The results are shown in table 3.In comparative example 6, as boehmite, the median size that the Serasyuru BMB{ that has used the river to close the manufacturing of lime Industrial Co., Ltd calculates based on minor axis is 1 μ m, and aspect ratio is 2}.In comparative example 8, as glass fibre, the Chopped StrandECS03-167S that has used Central Glass Co., Ltd. to make.
Table 3
Comparing embodiment 7 and comparative example 4, then embodiment 7 is the resin combination of mixing operation, plasticity, physical strength excellence by being added with 10 parts benzoxazine colophony; But comparative example 4 is not owing to add benzoxazine colophony, is physical strength excellence but the resin combination of mixing operation and plasticity difficulty.
Comparing embodiment 11 and comparative example 5, then embodiment 11 is the resin combination of mixing operation, plasticity, physical strength excellence by being added with 70 parts benzoxazine colophony; But comparative example 5 is owing to be added with 90 parts benzoxazine colophony, is mixing operation and has excellent formability but the bad resin combination of physical strength.
Comparing embodiment 10 and comparative example 6, then embodiment 10 is the resin combination of mixing operation, plasticity, physical strength excellence by using the median size calculated based on the minor axis boehmite as 10nm; But comparative example 6 is because to use the median size of calculating based on minor axis be the boehmite of 1 μ m, is mixing operation and has excellent formability but the bad resin combination of physical strength.
Comparing embodiment 10 and comparative example 7, then embodiment 10 is the resin combination of mixing operation, plasticity, physical strength excellence by using the median size calculated based on the minor axis boehmite as 10nm; But comparative example 7 is not owing to use boehmite, is mixing operation and has excellent formability but the bad resin combination of physical strength.
Comparing embodiment 11 and comparative example 8, then embodiment 11 is the resin combination of mixing operation, plasticity, physical strength, thermal conductivity excellence by using the median size calculated based on the minor axis boehmite as 10nm; But comparative example 8 is owing to use glass fibre, is mixing operation, plasticity and physical strength excellence but the bad resin combination of thermal conductivity.
In sum, to be suitable for the shaped material of electrical and electronic parts such as semiconductor-encapsulating material and trolley part etc. be the various uses such as mechanical part, plywood, sheet material of representative to phenol resin composition of the present invention.
Claims (13)
1. a phenol resin composition is characterized in that, it contains resol and is 100nm or following needle-like or columned boehmite based on the median size that minor axis is calculated.
2. a phenol resin composition is characterized in that, it contains resol and is 100nm or following needle-like or columned boehmite based on the median size that minor axis is calculated, and the aspect ratio of this boehmite is 1～100.
3. a phenol resin composition is characterized in that, the median size that it contains resol, calculate based on minor axis is 100nm or following needle-like or columned boehmite and as the alumina series compound of packing material.
4. phenol resin composition, it is characterized in that, the median size that it contains resol, calculate based on minor axis is 100nm or following needle-like or columned boehmite and as the alumina series compound of packing material, and the aspect ratio of this boehmite is 1～100.
5. phenol resin composition, it is characterized in that it is that the ratio of 1～150 mass parts contains resol and is 100nm or following needle-like or columned boehmite based on the median size that minor axis is calculated with boehmite with respect to the resol of 100 mass parts.
6. phenol resin composition, it is characterized in that, it is that the ratio of 1～150 mass parts contains resol and is 100nm or following needle-like or columned boehmite based on the median size that minor axis is calculated with boehmite with respect to the resol of 100 mass parts, and further contains the alumina series compound as packing material.
7. phenol resin composition, it is characterized in that it is that the ratio of 1～150 mass parts contains resol and is that 100nm or following and aspect ratio are 1～100 needle-like or columned boehmite based on the median size that minor axis is calculated with boehmite with respect to the resol of 100 mass parts.
8. phenol resin composition, it is characterized in that, it is that the ratio of 1～150 mass parts contains resol and is that 100nm or following and aspect ratio are 1～100 needle-like or columned boehmite based on the median size that minor axis is calculated with boehmite with respect to the resol of 100 mass parts, and further contains the alumina series compound as packing material.
9. as each described phenol resin composition in the claim 1～8, it has thermoset.
10. as each described phenol resin composition in the claim 1～4, it further contains benzoxazine colophony, and the mass ratio of resol and benzoxazine colophony is in 95/5～25/75 scope.
11. phenol resin composition as claimed in claim 10, wherein, the content of boehmite is 1～150 mass parts with respect to 100 mass parts of the total amount of resol and benzoxazine colophony.
12. phenol resin composition as claimed in claim 10, it has thermoset.
13. phenol resin composition as claimed in claim 11, it has thermoset.
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| DE102008001470B4 (en) * | 2008-04-30 | 2018-01-04 | Evonik Degussa Gmbh | Continuous process for the preparation of a reactive polymer |
| CN101376735B (en) * | 2008-09-26 | 2011-11-30 | 广东生益科技股份有限公司 | Halogen-free flame-proof epoxy resin composition and bonding sheet and copper clad laminate prepared thereby |
| CN103087465A (en) * | 2013-03-01 | 2013-05-08 | 无锡创达电子有限公司 | Phenolic resin moulding compound |
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| JP2002220507A (en) * | 2001-01-29 | 2002-08-09 | Sumitomo Bakelite Co Ltd | Phenol resin molding material |
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2004
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| US5635154A (en) * | 1990-06-15 | 1997-06-03 | Nissan Chemical Industries Ltd. | Process for producing fine metal oxide particles |
| JPH05279019A (en) * | 1992-03-30 | 1993-10-26 | Yoshida Kogyo Kk <Ykk> | Fine sheet-like boehmite particle and production therefor |
| JPH08183855A (en) * | 1994-12-28 | 1996-07-16 | Hitachi Chem Co Ltd | Thermosetting resin composition and cured material thereof |
| CN1161986A (en) * | 1996-02-09 | 1997-10-15 | 日立化成工业株式会社 | Thermosetting resin composition, solidifying material, preformed material metal armoured laminated plate and circuit board |
| US5900447A (en) * | 1997-05-01 | 1999-05-04 | Edison Polymer Innovation Corporation | Composition for forming high thermal conductivity polybenzoxazine-based material and method |
| JP2001064480A (en) * | 1999-08-30 | 2001-03-13 | Sumitomo Bakelite Co Ltd | Thermosetting resin composition |
| JP2001261976A (en) * | 2000-03-16 | 2001-09-26 | Otsuka Chem Co Ltd | Resin composition |
| JP2002220507A (en) * | 2001-01-29 | 2002-08-09 | Sumitomo Bakelite Co Ltd | Phenol resin molding material |
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