WO2005019338A1 - フェノール樹脂成形材料及び樹脂製摺動部品 - Google Patents
フェノール樹脂成形材料及び樹脂製摺動部品 Download PDFInfo
- Publication number
- WO2005019338A1 WO2005019338A1 PCT/JP2004/011893 JP2004011893W WO2005019338A1 WO 2005019338 A1 WO2005019338 A1 WO 2005019338A1 JP 2004011893 W JP2004011893 W JP 2004011893W WO 2005019338 A1 WO2005019338 A1 WO 2005019338A1
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- parts
- molding material
- mass
- phenolic resin
- resin molding
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Classifications
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- 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
Definitions
- the present invention relates to a phenol resin molding material suitable for substituting various metal parts such as automobile parts.
- Phenol resin molding materials are widely used in various fields as materials excellent in heat resistance, dimensional accuracy, abrasion resistance, mechanical strength and cost. While
- novolak-type phenolic resins used in conventional phenolic resin molding materials are generally obtained by reacting phenols and aldehydes under an acidic catalyst such as oxalic acid. Due to the large amount of low molecular weight components mainly composed of phenolic monomers, moldability problems such as the generation of gas during molding, clouding of the mold and poor mold releasability occurred.
- a phenolic resin molding material using a novolak-type phenolic resin having a small amount of unreacted phenols obtained by subjecting a phenol and an aldehyde to a condensation reaction using an oxycarboxylic acid as a catalyst has been proposed (Patent Document 1).
- Patent Document 1 a phenolic resin molding material using a novolak-type phenolic resin having a small amount of unreacted phenols obtained by subjecting a phenol and an aldehyde to a condensation reaction using an oxycarboxylic acid as a catalyst.
- Patent Document 1 JP-A-8-59769
- the present invention has been made in view of the above problems, and has as its object to provide a phenolic resin molding material having excellent moldability, heat resistance, dimensional accuracy, and mechanical strength.
- Another object of the present invention is to provide a phenolic resin molding material that is excellent in moldability, heat resistance, dimensional accuracy, and mechanical strength, and is further excellent in wear resistance.
- the present inventors have conducted intensive studies to overcome the above-mentioned problems, and as a result, have found that a novolak-type phenol resin having a small content of phenolic monomers and phenolic dimers and a narrow molecular weight distribution, and an inorganic filler. It has been found that the desired molding material can be obtained by blending at a specific ratio, and the present invention has been completed.
- the phenolic resin molding material of the present invention has a total content of phenolic monomers and phenolic dimers of 10% or less as measured by gel filtration chromatography area method, and a weight average by gel filtration chromatography measurement.
- Nobleak-type phenolic resin with a dispersion ratio (Mw / Mn) of 1.1 to 3.0 between the molecular weight (Mw) and the number average molecular weight (Mn) is used. It is characterized by being blended.
- the phenolic resin molding material of the present invention is excellent in moldability, heat resistance, dimensional accuracy, and mechanical strength. Therefore, molded parts obtained from this molding material are suitably used for substituting various metallic parts such as automobile parts requiring heat resistance and dimensional accuracy.
- the phenolic resin molding material of the present invention in which a fibrous filler is blended as an inorganic filler has good moldability despite the reduced amount of resin, and has heat resistance, dimensional accuracy, and mechanical properties. Excellent in strength and also in abrasion resistance.
- the amount of resin it is possible to increase the filling of the wear-resistant inorganic fiber-like filler, which leads to an improvement in the wear resistance due to the effect of improving the hardness of the product surface and the effect of reinforcing the resin part. It is suitable for the resinization of the sliding parts.
- FIG. 1 is a view showing a shape of a piston model for a thermal shock test.
- the novolak-type phenol resin used in the present invention has a total content of a phenol monomer and a phenol dimer of 10% or less, preferably 5% or less, as measured by an area method of gel filtration chromatography.
- the novolak phenol resin used in the present invention has a dispersion ratio (MwZMn) between the weight average molecular weight (Mw) and the number average molecular weight (Mn) determined by gel filtration chromatography, which is 1.3 to 1.3. 0, preferably 1.5-2.
- the weight average molecular weight (Mw) is not particularly limited, and is S, preferably 800-3700, and more preferably 900-3500.
- the novolak type phenol resin used in the present invention is not particularly limited.
- a phenol and an aldehyde of 0.80 to 1.00 moles per mole of the phenol may be used. It can be produced by a production method having a step of performing a heterogeneous reaction in the presence of 5 parts by mass or more of phosphoric acid per 100 parts by mass of phenols.
- phenols and aldehydes are required as raw materials, and phosphoric acids are required as an acid catalyst, and the two-phase separation state formed from these is stirred and mixed by mechanical stirring, ultrasonic waves, or the like to obtain a mixture.
- the phases organic phase and aqueous phase
- the reaction between phenols and aldehydes is advanced to synthesize a condensate (resin).
- a water-insoluble organic solvent eg, methyl ethyl ketone, methyl isobutyl ketone, etc.
- aqueous phase phosphoric acid aqueous solution phase
- the organic phase can be produced by washing and / or neutralizing the organic phase, and then distilling and recovering the organic solvent.
- phenols used as a raw material include phenol, cresol, xylenol And butyl phenol, phenyl phenol and the like.
- aldehydes include formaldehyde, formalin, paraformaldehyde, and acetoaldehyde. These raw materials are not limited to the examples, and may be used alone or in combination of two or more.
- the mixing ratio (F / P) of the aldehydes (F) and the phenols (P) is in the range of 0.80 or more and 1.0 or less on a molar basis, the novolak-type phenol resin used in the present invention. The ability to produce high yields.
- phosphoric acids used as an acid catalyst play an important role of forming a phase separation reaction field with phenols in the presence of water, and are therefore preferably of an aqueous solution type, for example, Force of using 89% by mass of phosphoric acid, 75% by mass of phosphoric acid, etc.
- polyphosphoric acid, phosphoric anhydride, or the like may be used as necessary.
- the amount of the phosphoric acid compound greatly affects the control of the phase separation effect, but is generally 5 parts by mass or more, preferably 25 parts by mass or more, more preferably 100 parts by mass of the phenols. 50 parts by mass or more. If the compounding amount is less than 5 parts by mass, the production of high molecular weight components is promoted without reducing the low molecular weight components, and the molecular weight distribution tends to be wide. When 70 parts by mass or more of phosphoric acid is used, it is desirable to ensure safety by reducing the heat generation at the beginning of the reaction by dividing and charging into the reaction system.
- reaction auxiliary solvent it is preferable to use at least one selected from the group consisting of alcohols, polyhydric alcohol ethers, cyclic ethers, polyhydric alcohol esters, ketones, and sulfoxides.
- alcohols examples include monohydric alcohols such as methanol, ethanol, and propanol, butanediol, pentanediol, hexanediol, ethylene glycol, propylene glycol, trimethylene glycol, diethylene glycol, dipropylene glycol, and the like. And dihydric alcohols such as triethylene glycolone, tripropylene glycolone, and polyethylene glycolone, and trihydric alcohols such as glycerin.
- monohydric alcohols such as methanol, ethanol, and propanol, butanediol, pentanediol, hexanediol, ethylene glycol, propylene glycol, trimethylene glycol, diethylene glycol, dipropylene glycol, and the like.
- dihydric alcohols such as triethylene glycolone, tripropylene glycolone, and polyethylene glycolone
- trihydric alcohols such as glycerin.
- polyhydric alcohol ether examples include, for example, ethylene glycol monomethyl ether, ethylene glycol monomethyl ethylene glycol, and ethylene glycol monomethyl ethylene glycol.
- glycol ethers such as ethylene glycol monobutyl ether, ethylene glycol monopentyl ether, ethylene glycol dimethyl ether, ethylene glycol ethyl methyl ether, and ethylene glycol monophenyl ether.
- Examples of the cyclic ethers include 1,3-dioxane and 1,4 dioxane, and examples of the polyhydric alcohol esters include glycol esters such as ethylene glycol acetate.
- Ketones include, for example, acetone, methyl ethyl ketone, and methyl isobutyl ketone.
- Sulfoxides include, for example, dimethyl sulfoxide, getyl sulfoxide, and the like.
- methanol ethylene glycol monomethyl ether, polyethylene glycol, 1,4-dioxane and the like are particularly preferable.
- the reaction auxiliary solvent is not limited to the above examples, and may be a solid as long as it has the above characteristics and exhibits a liquid form during the reaction. Two or more kinds may be used in combination.
- the amount of the reaction auxiliary solvent is not particularly limited, but is 5 parts by mass or more, preferably 10-200 parts by mass, per 100 parts by mass of the phenols.
- the amount of water in the reaction system affects the phase separation effect and the production efficiency, but is generally 40% or less on a mass basis. If the amount of water exceeds 40%, production efficiency may decrease for a lifetime.
- the reaction temperature of the phenols and aldehydes is important for enhancing the phase separation effect, and is generally 40 ° C-reflux temperature, preferably 80 ° C-reflux temperature, more preferably This is the return temperature. If the reaction temperature is lower than 40 ° C, the reaction time becomes extremely long, and low molecular weight components cannot be reduced.
- the reaction time varies depending on the reaction temperature, the amount of phosphoric acid, the water content in the reaction system, and the like, but is generally about 110 hours.
- the reaction environment is preferably normal pressure, but the reaction may be carried out under increased or reduced pressure as long as the heterogeneous reaction characteristic of the present invention is maintained.
- the inorganic filler used in the present invention is not particularly limited, and any one can be used as long as it is mixed with a conventional phenolic resin molding material.
- a conventional phenolic resin molding material for example, calcium carbonate, clay, Tanorek, silica, aramide fiber, carbon fiber, glass fiber, etc. These may be used alone or in combination of two or more, but it is preferable to use glass fibers and other inorganic fillers in combination.
- the blending amount of the inorganic filler is 350 to 900 parts by mass, preferably 400 to 800 parts by mass with respect to 100 parts by mass of the novolak phenol resin, from the viewpoint of improving mechanical strength and heat resistance. It is preferable to contain 100 to 200 parts by mass of glass fiber. If the amount of the inorganic filler is less than 350 parts by mass, the dimensional accuracy tends to decrease because the shrinkage ratio increases, and if the amount of the inorganic filler is more than 900 parts by mass, the flowability decreases and the injection moldability deteriorates. Therefore, it is not preferable.
- the inorganic fibrous filler used in the present invention is not particularly limited, and includes various carbon fibers such as pitch-based and PAN-based carbon fibers, including fibrous ones among the aforementioned inorganic fillers.
- Lastinite (wollastonite) and fibrous fillers such as potassium titanate and aluminum borate can be used.
- Wollastonite (wollastonite) is selected from the viewpoint of improving abrasion resistance and heat resistance. It is preferable to select glass fibers from the viewpoint of improving mechanical strength, heat resistance, and not reducing wear resistance, and to combine both. This combination also favors the cost-puff omance perspective.
- the compounding amount of the inorganic fibrous filler is 450 to 900 parts by mass, preferably 600 to 800 parts by mass, based on 100 parts by mass of the novolac phenol resin. More preferably, it is a combination of wollastonite and glass fiber, wherein wollastonite is 350 to 800 parts by mass, preferably 450 to 700 parts by mass, and glass fiber is 100 to 200 parts by mass, preferably 110 to 150 parts by mass. It is.
- the amount of the inorganic fibrous filler is less than 450 parts by mass, the wear resistance decreases due to an increase in the resin amount, and the thermal shock resistance (heat resistance) due to a rapid temperature change tends to decrease due to an increase in the linear expansion coefficient. If the amount is more than 900 parts by mass, the fluidity is lowered, and the problem that the stable formability is deteriorated arises, which is not preferable.
- the phenolic resin molding material of the present invention may optionally contain various additives conventionally used in conventional phenolic resin molding materials, for example, curing agents such as hexamethylenetetramine, and mold release agents such as calcium stearate and zinc stearate. , A curing accelerator such as magnesium oxide, a coupling agent, a solvent, and the like.
- the method for producing the phenolic resin molding material of the present invention is not particularly limited. It is manufactured by pulverizing a kneaded material heated and kneaded with a power mill, a twin screw extruder, a Henschel mixer, a mixing roll or the like. Further, the molding material thus obtained can be applied to any of injection molding, transfer molding, compression molding and the like.
- the molding material of the present invention is excellent in moldability, heat resistance, dimensional accuracy, mechanical strength, and abrasion resistance is that the phenol monomer and dimer components are small, and the novolak phenol having a small dispersion ratio.
- the melt viscosity of the molding material at the time of kneading can be reduced, which makes it possible to reduce the ratio of the resin component in the molding material and relatively increase the ratio of the inorganic filler compared to the conventional case. It is probably because it has become possible.
- a product obtained from the molding material of the present invention in which a fibrous filler is blended as an inorganic filler has excellent dimensional accuracy and a low thermal expansion coefficient because of a small amount of organic components that are easily affected by heat. Since it is small, it is good for temperature change environments, and when it actually slides, there are few organic components that cause wear phenomena, so it shows excellent wear resistance under oil-water lubrication.
- Thermometer, stirrer, into a reaction vessel equipped with a condenser, 193 parts of Fuwenoru (P), 92 0/0 Nono ° Rahonoremu the (F) 57 Sound (F / P 0. 85) , 89 0/0
- 116 phosphoric acid 60 ⁇ / ⁇ / ⁇
- 96.5 parts 50% ⁇
- the temperature was raised to the reflux temperature, and the condensation reaction was further performed at the same temperature for 10 hours, and then the reaction was stopped.
- methyl isobutyl ketone is added while stirring and mixing to dissolve the condensate.
- the dispersion ratio (Mw / Mn) was calculated by determining the weight average molecular weight (Mw) and number average molecular weight (Mn) in terms of standard polystyrene by measurement at 1 ml / min and column temperature: 38 ° C.
- the area of the phenolic monomer and the phenolic dimer relative to the total area of the molecular weight distribution was measured by an area method in which the area was expressed in percentage.
- novolak type phenol resin (1) 100 parts of novolak type phenol resin (1), 133 parts of glass fiber (manufactured by NEC Corporation, standard fiber diameter: 10 ⁇ m, average fiber length: 3 mm) as fused filler, and fused silica 433 parts (made by Denki Kagaku Kogyo, FS-90), 12 parts of hexamethylenetetramine, 13 parts of a release agent and others were blended and uniformly mixed. Thereafter, the mixture was heated and kneaded uniformly with a hot roll to form a sheet, cooled, and then pulverized with a power mill to obtain a granular molding material. The obtained molding material was injection-molded under the following conditions to obtain a JIS bending test piece (80 ⁇ 10 ⁇ 4 mm).
- Cylinder temperature 85 ° C front, 40 ° C rear
- test pieces were subjected to after-curing at 180 ° C for 3 hours, and evaluated for shrinkage, bending strength, and shrinkage after boiling for 24 hours, and were further subjected to long-term heat resistance at 250 ° C for 500 hours.
- the test was performed. The results are shown in Table 2. Various characteristics were evaluated based on the following.
- a molding material was produced and evaluated in the same manner as in Example 1 except that the mixing ratio was changed as shown in Table 2.
- Table 2 shows the results. In Comparative Example 2, a molding material having poor roll workability was not obtained.
- a molding material was produced in the same manner as in Example 1 except that the mixing ratio was changed as shown in Table 3.
- the used inorganic fibrous filler is as follows.
- Wollastonite made by Tomoe Industries, Nyayard 400, standard fiber diameter: 7 x m, aspect ratio: 4
- Glass fiber manufactured by Nitto Boseki Co., Ltd., standard fiber diameter: 11 ⁇ m, average fiber length: 3 mm
- the obtained molding material was injection-molded under the same conditions as in Example 1 to obtain a JIS shrinkage test piece, a JIS bending test piece (80 ⁇ 10 ⁇ 4 mm), and a ring test piece for abrasion test. After-hour curing was performed, and the following characteristics were evaluated. The results are shown in Table 3.
- the test is performed under the following conditions, and the wear amount of the wear test ring test piece and the mating material is measured.
- Formula test load 60kg / cm
- Example 3 Example 4 Comparative Example 4 Comparative Example 5 Comparative Example 6 Noho "Rack-type phenol resin (1) 100 100--100 Toriko Noho" Rack-type phenol resin (2)--100 100-
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Sliding-Contact Bearings (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Description
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04771854A EP1661950A4 (en) | 2003-08-22 | 2004-08-19 | MOLDING MATERIAL COMPRISING A PHENOL RESIN AND SLIDING PIECE MADE THEREFROM |
US10/568,277 US20070060701A1 (en) | 2003-08-22 | 2004-08-19 | Phenolic resin molding material and resin sliding part |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-298117 | 2003-08-22 | ||
JP2003298117 | 2003-08-22 | ||
JP2004-176348 | 2004-06-15 | ||
JP2004176348A JP4723822B2 (ja) | 2003-08-22 | 2004-06-15 | 摺動部品製造用フェノール樹脂成形材料及び樹脂製摺動部品 |
Publications (1)
Publication Number | Publication Date |
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WO2005019338A1 true WO2005019338A1 (ja) | 2005-03-03 |
Family
ID=34220709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/011893 WO2005019338A1 (ja) | 2003-08-22 | 2004-08-19 | フェノール樹脂成形材料及び樹脂製摺動部品 |
Country Status (5)
Country | Link |
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US (1) | US20070060701A1 (ja) |
EP (1) | EP1661950A4 (ja) |
JP (1) | JP4723822B2 (ja) |
TW (1) | TWI362399B (ja) |
WO (1) | WO2005019338A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5634211B2 (ja) * | 2009-10-26 | 2014-12-03 | 旭有機材工業株式会社 | フェノール樹脂成形材料及び摺動部材 |
EP2568002B1 (en) * | 2011-09-06 | 2014-04-30 | Sumitomo Bakelite Co., Ltd. | Phenolic resin molding compound |
JP5964174B2 (ja) * | 2012-08-10 | 2016-08-03 | 旭有機材株式会社 | 摺動部材用成形材料、その製造方法及び摺動部材 |
JP6831175B2 (ja) * | 2015-10-29 | 2021-02-17 | 住友ベークライト株式会社 | フェノール樹脂成形材料 |
CN111976242B (zh) * | 2020-08-22 | 2022-10-28 | 中塑新材料科技(杭州)有限公司 | 一种抗介质高阻隔共挤膜及其制备方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH03167248A (ja) * | 1989-11-27 | 1991-07-19 | Sumitomo Bakelite Co Ltd | フェノール樹脂成形材料 |
JPH0649159A (ja) * | 1992-07-29 | 1994-02-22 | Sumitomo Durez Co Ltd | 摩擦材用ノボラック型フェノール樹脂組成物 |
JPH08159244A (ja) * | 1994-12-07 | 1996-06-21 | Sumitomo Bakelite Co Ltd | 樹脂プーリー |
JPH08231859A (ja) * | 1994-12-16 | 1996-09-10 | Showa Highpolymer Co Ltd | 摺動部材用熱硬化性樹脂組成物 |
JP2000219796A (ja) * | 1999-02-02 | 2000-08-08 | Fudow Co Ltd | 耐衝撃性フェノール樹脂成形材料組成物 |
JP2002220507A (ja) * | 2001-01-29 | 2002-08-09 | Sumitomo Bakelite Co Ltd | フェノール樹脂成形材料 |
WO2003042267A1 (fr) * | 2001-11-16 | 2003-05-22 | Asahi Organic Chemicals Industry Co., Ltd. | Novolaques phenoliques et leur procede de production |
JP2003268196A (ja) * | 2002-03-19 | 2003-09-25 | Sumitomo Bakelite Co Ltd | コンミテーター用フェノール樹脂成形材料 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS62265151A (ja) * | 1986-05-12 | 1987-11-18 | ニチアス株式会社 | 成形材料 |
JPH03179077A (ja) * | 1989-12-07 | 1991-08-05 | Hitachi Chem Co Ltd | 摩擦材組成物及び該組成物を用いた摩擦材の製造法 |
JPH03179078A (ja) * | 1989-12-07 | 1991-08-05 | Hitachi Chem Co Ltd | 摩擦材組成物及び該組成物を用いた摩擦材の製造方法 |
JPH05194936A (ja) * | 1992-01-23 | 1993-08-03 | Jidosha Denki Kogyo Co Ltd | 摩擦材組成物 |
EP0747444B1 (en) * | 1994-12-16 | 2003-03-26 | Otsuka Kagaku Kabushiki Kaisha | Thermosetting resin composition for sliding member |
US5932389A (en) * | 1998-02-20 | 1999-08-03 | Shipley Company, L.L.C. | Controlled alternating and block copolymer resins |
EP1649322A4 (en) * | 2003-07-17 | 2007-09-19 | Honeywell Int Inc | PLANARIZATION FILMS FOR ADVANCED MICROELECTRONIC DEVICES AND APPLICATIONS AND METHODS FOR PRODUCING SAID FILMS |
-
2004
- 2004-06-15 JP JP2004176348A patent/JP4723822B2/ja active Active
- 2004-08-19 US US10/568,277 patent/US20070060701A1/en not_active Abandoned
- 2004-08-19 EP EP04771854A patent/EP1661950A4/en not_active Withdrawn
- 2004-08-19 WO PCT/JP2004/011893 patent/WO2005019338A1/ja active Application Filing
- 2004-08-20 TW TW093125136A patent/TWI362399B/zh not_active IP Right Cessation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03167248A (ja) * | 1989-11-27 | 1991-07-19 | Sumitomo Bakelite Co Ltd | フェノール樹脂成形材料 |
JPH0649159A (ja) * | 1992-07-29 | 1994-02-22 | Sumitomo Durez Co Ltd | 摩擦材用ノボラック型フェノール樹脂組成物 |
JPH08159244A (ja) * | 1994-12-07 | 1996-06-21 | Sumitomo Bakelite Co Ltd | 樹脂プーリー |
JPH08231859A (ja) * | 1994-12-16 | 1996-09-10 | Showa Highpolymer Co Ltd | 摺動部材用熱硬化性樹脂組成物 |
JP2000219796A (ja) * | 1999-02-02 | 2000-08-08 | Fudow Co Ltd | 耐衝撃性フェノール樹脂成形材料組成物 |
JP2002220507A (ja) * | 2001-01-29 | 2002-08-09 | Sumitomo Bakelite Co Ltd | フェノール樹脂成形材料 |
WO2003042267A1 (fr) * | 2001-11-16 | 2003-05-22 | Asahi Organic Chemicals Industry Co., Ltd. | Novolaques phenoliques et leur procede de production |
JP2003268196A (ja) * | 2002-03-19 | 2003-09-25 | Sumitomo Bakelite Co Ltd | コンミテーター用フェノール樹脂成形材料 |
Non-Patent Citations (1)
Title |
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See also references of EP1661950A4 * |
Also Published As
Publication number | Publication date |
---|---|
JP4723822B2 (ja) | 2011-07-13 |
EP1661950A4 (en) | 2011-08-03 |
TW200512228A (en) | 2005-04-01 |
JP2005097535A (ja) | 2005-04-14 |
US20070060701A1 (en) | 2007-03-15 |
EP1661950A1 (en) | 2006-05-31 |
TWI362399B (en) | 2012-04-21 |
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