WO2014050850A1 - 熱硬化性液晶ポリエステル組成物及びその硬化物 - Google Patents
熱硬化性液晶ポリエステル組成物及びその硬化物 Download PDFInfo
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- WO2014050850A1 WO2014050850A1 PCT/JP2013/075818 JP2013075818W WO2014050850A1 WO 2014050850 A1 WO2014050850 A1 WO 2014050850A1 JP 2013075818 W JP2013075818 W JP 2013075818W WO 2014050850 A1 WO2014050850 A1 WO 2014050850A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
- C08L67/03—Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the carboxyl- and the hydroxy groups directly linked to aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/91—Polymers modified by chemical after-treatment
- C08G63/914—Polymers modified by chemical after-treatment derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/916—Dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
- C08J3/243—Two or more independent types of crosslinking for one or more polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L35/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/38—Polymers
- C09K19/3804—Polymers with mesogenic groups in the main chain
- C09K19/3809—Polyesters; Polyester derivatives, e.g. polyamides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
- C08J2367/03—Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the hydroxy and the carboxyl groups directly linked to aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/06—Unsaturated polyesters
- C08J2367/07—Unsaturated polyesters having terminal carbon-to-carbon unsaturated bonds
Definitions
- thermosetting resin composition containing liquid crystal polyester (thermosetting liquid crystal polyester composition) and a cured product obtained by curing the thermosetting resin composition.
- Liquid crystal polymers typified by liquid crystal polyester are excellent in various properties such as heat resistance, moldability, chemical resistance, and mechanical strength, and thus are used in various applications such as electric / electronic parts and automobile parts.
- thermosetting liquid crystal polymer material for example, a material in which a liquid crystal oligomer such as a main chain thermotropic liquid crystal ester is end-capped with a phenylacetylene, phenylmaleimide, or nadiimide reactive end group is known (see Patent Documents 1 to 3). ).
- a material obtained by reacting a thermosetting liquid crystal oligomer having one or more soluble structural units in the main chain and having a thermosetting group at one or more terminals of the main chain with a specific fluorine compound A material obtained by reacting the thermosetting liquid crystal oligomer with a nano filler whose surface is substituted with an alkoxide metal compound is known (see Patent Document 5).
- thermosetting liquid crystal polymer material for example, a material in which a crosslinkable group is bonded to a terminal of a liquid crystal polymer via a spacer unit is also known (see Patent Document 6).
- a material having radically polymerizable groups such as unsubstituted or substituted maleimide, unsubstituted or substituted nadiimide, ethynyl, and benzocyclobutene at both ends of the liquid crystal polyester is also known (see Patent Document 7).
- Patent Documents 1 to 3 require heating at a high temperature of 350 ° C. or higher for curing, and the manufacturing process of the cured product becomes complicated, and the constituent components are volatilized /
- the product to be sealed deteriorates in applications such as a sealing material and the like.
- the materials disclosed in Patent Documents 4 and 5 have a problem in hydrolysis resistance of the resulting cured product because the liquid crystal polymer main chain contains a soluble structural unit containing an amide bond or an amine bond as an essential structural unit. Had.
- the material disclosed in Patent Document 6 has a spacer unit such as an alkylene group as a linking group between the liquid crystal polymer and the crosslinkable group, the material is susceptible to thermal decomposition, and the resulting cured product is inferior in heat resistance. Had. Furthermore, the material disclosed in Patent Document 7 has a problem that the obtained cured product is brittle.
- an object of the present invention is to provide a thermosetting composition (thermosetting) that can be cured at a relatively low temperature (for example, 250 ° C. or less) and can obtain a cured product having various physical properties such as heat resistance. It is to provide a liquid crystal polyester composition).
- the present inventors can cure at a relatively low temperature by melt-mixing a liquid crystal polyester having a specific structure and a compound having a specific functional group in the molecule. It was found that a thermosetting composition capable of obtaining a cured product excellent in various physical properties such as heat resistance was obtained, and the present invention was completed.
- the present invention relates to a liquid crystal polyester (A) having a hydroxyl group and / or an acyloxy group at the molecular chain terminal, a compound having a functional group that reacts with a hydroxyl group and / or an acyloxy group, and a thermally polymerizable functional group in the molecule (B And a thermosetting liquid crystal polyester composition obtained by melt mixing.
- thermosetting liquid crystal polyester composition wherein the liquid crystal polyester (A) is a liquid crystal polyester having a structural unit derived from an aromatic compound monomer, an average degree of polymerization of 3 to 30, and a melting point of 250 ° C. or less. Offer things.
- the functional group that reacts with the hydroxyl group and / or acyloxy group in the compound (B) is selected from the group consisting of an ⁇ , ⁇ -unsaturated carbonyl group, an epoxy group, a maleimide group, an ester group, an acid anhydride group, and a carboxyl group. At least one selected functional group;
- the thermopolymerizable functional group in the compound (B) is a maleimide group, nadiimide group, phthalimide group, cyanate group, phthalonitrile group, styryl group, ethynyl group, propargyl ether group, benzocyclobutane group, biphenylene group, and substituted products thereof.
- the said thermosetting liquid-crystal polyester composition which is the at least 1 sort (s) of thermopolymerizable functional group selected from the group which consists of derivatives.
- the present invention provides a compound represented by the following formula (1), a compound represented by the following formula (2), a compound represented by the following formula (3), a compound represented by the following formula (4), And a thermosetting liquid crystalline polyester composition comprising at least one compound selected from the group consisting of compounds represented by the following formula (5):
- L 1 represents a liquid crystal polyester skeleton.
- X 1 and X 2 are the same or different and each represents an organic group.
- X 1 and X 2 may be bonded to each other to form a ring together with the three carbon atoms shown in the formula.
- R 1 and R 2 are the same or different and each represents a hydrogen atom or an alkyl group which may have a substituent.
- Y 1 and Y 2 are the same or different and represent a thermally polymerizable functional group.
- n1 and n2 are the same or different and represent an integer of 0 or more (provided that n1 + n2 is an integer of 1 or more).
- L 2 represents a liquid crystal polyester skeleton.
- X 3 and X 4 are the same or different and each represents an organic group. X 3 and X 4 may combine with each other to form a ring together with the three carbon atoms shown in the formula.
- Y 3 and Y 4 are the same or different and represent a thermally polymerizable functional group.
- n3 and n4 are the same or different and represent an integer of 0 or more (provided that n3 + n4 is an integer of 1 or more).
- L 3 represents a liquid crystal polyester skeleton.
- X 5 represents an organic group.
- Y 5 represents a thermally polymerizable functional group.
- n5 represents an integer of 1 or more.
- L 4 represents a liquid crystal polyester skeleton.
- X 6 represents an organic group.
- R 3 to R 5 are the same or different and each represents a hydrogen atom or an alkyl group which may have a substituent.
- Y 6 represents a thermally polymerizable functional group.
- n6 represents an integer of 1 or more.
- [In the formula (5), L 4 , X 6 , R 3 to R 5 , Y 6 and n6 are the same as above. ]
- thermosetting liquid crystal polyester composition containing an inorganic filler is provided.
- the present invention also provides a cured product obtained by curing the thermosetting liquid crystal polyester composition.
- the cured product having a 5% weight loss temperature measured at a rate of temperature increase of 10 ° C./min (in air) of 350 ° C. or higher and an activation energy of a thermal decomposition reaction in air of 150 kJ / mol or higher. I will provide a.
- thermosetting liquid crystal polyester composition of the present invention Since the thermosetting liquid crystal polyester composition of the present invention has the above configuration, it can be cured at a relatively low temperature (for example, 250 ° C. or lower), and the cured product obtained by curing is excellent in heat resistance. Further, since the thermosetting liquid crystal polyester composition of the present invention contains liquid crystal polyester as an essential constituent, the obtained cured product has processability, dimensional stability, low linear expansion, high thermal conductivity, low moisture absorption, and dielectric properties. Also excellent.
- thermosetting liquid crystal polyester composition of the present invention is a thermosetting composition (thermosetting resin composition) obtained by melt-mixing the following component (A) and component (B).
- Component (B) having a hydroxyl group, an acyloxy group, an aromatic ring, or a functional group that reacts with a conjugated diene structure (particularly, a functional group that reacts with a hydroxyl group and / or an acyloxy group) and a thermally polymerizable functional group in the molecule.
- Compound (sometimes referred to as “compound (B)”) The above
- the liquid crystal polyester (A) for constituting the thermosetting liquid crystal polyester composition of the present invention is selected from the group consisting of a hydroxyl group, an acyloxy group, an aromatic ring, and a conjugated diene structure at the molecular chain terminal as described above. And a liquid crystal polyester having at least one group (sometimes referred to as “addition-reactive group (a)”).
- the liquid crystal polyester (A) is a polymer (polymer or oligomer) having a polyester structure, and its melt (for example, a melt at 450 ° C. or less) exhibits optical anisotropy (thermotropic liquid crystal polymer). ).
- liquid crystal polyester (A) has a hydroxyl group at the molecular chain end
- the liquid crystal polyester (A) may have a hydroxyl group only at one end (one end) of the molecular chain, or both ends (both ends) of the molecular chain.
- the terminal may have a hydroxyl group.
- liquid crystalline polyester (A) may have a hydroxyl group in parts other than the molecular chain terminal.
- the hydroxyl group that the liquid crystal polyester (A) has at the molecular chain terminal may be a phenolic hydroxyl group or an alcoholic hydroxyl group. Especially, it is preferable that the hydroxyl group which liquid crystalline polyester (A) has in the molecular chain terminal from a heat resistant viewpoint of hardened
- cured material is a phenolic hydroxyl group.
- the “phenolic hydroxyl group” in the present specification includes a hydroxyl group bonded to other aromatic rings (naphthalene ring, anthracene ring, etc.) in addition to a hydroxyl group bonded to a substituted or unsubstituted benzene ring. .
- liquid crystalline polyester (A) has an acyloxy group at the molecular chain end, it is not particularly limited, but it may have an acyloxy group only at one end (one end) of the molecular chain or both ends of the molecular chain. It may have an acyloxy group at both ends. Moreover, liquid crystalline polyester (A) may have an acyloxy group in parts other than the molecular chain terminal.
- acyloxy group that the liquid crystal polyester (A) has at the molecular chain end examples include an acetyloxy group (acetoxy group), a propionyloxy group, and a butyryloxy group.
- the acyloxy group which liquid crystal polyester (A) has in the molecular chain terminal is an acetoxy group from the versatility and the reactive viewpoint of the raw material to be used.
- liquid crystal polyester (A) When the liquid crystal polyester (A) has an aromatic ring at the molecular chain end, it is not particularly limited, but it may have an aromatic ring only at one end (one end) of the molecular chain or both molecular chains.
- the terminal (both ends) may have an aromatic ring.
- liquid crystal polyester (A) may have an aromatic ring in parts other than the molecular chain terminal.
- the aromatic ring which liquid crystal polyester (A) has in the molecular chain terminal may couple
- the substituent include publicly known or commonly used substituents, and are not particularly limited. Examples thereof include those exemplified as the substituents that the aromatic hydroxycarboxylic acid described later may have.
- the liquid crystalline polyester (A) has a phenolic hydroxyl group at the molecular chain end
- the liquid crystalline polyester (A) is a liquid crystalline polyester having a hydroxyl group at the molecular chain end or a liquid crystalline polyester having an aromatic ring at the molecular chain end. is there.
- the liquid crystal polyester (A) has a conjugated diene structure at the molecular chain end, it is not particularly limited, but it may have a conjugated diene structure only at one end (one end) of the molecular chain or both molecular chains. May have a conjugated diene structure at both ends (both ends). Further, the liquid crystal polyester (A) may have a conjugated diene structure in a portion other than the molecular chain terminal.
- Examples of the conjugated diene structure that the liquid crystal polyester (A) has at the molecular chain terminal include a chain conjugated diene structure and a cyclic conjugated diene structure.
- As the chain conjugated diene structure for example, a structure derived from (corresponding to) 1,3-butadiene, isoprene, 2,3-dimethyl-1,3-butadiene, 1,3-pentadiene, 1,3-hexadiene, etc. Etc.
- Examples of the cyclic conjugated diene structure include structures derived from (corresponding to) 1,3-cyclopentadiene, 1,3-cyclohexadiene, furan and derivatives thereof, thiophene and derivatives thereof, and the like.
- the liquid crystal polyester (A) may have two or more selected from the group consisting of a hydroxyl group, an acyloxy group, an aromatic ring, and a conjugated diene structure at the molecular chain terminal.
- the liquid crystal polyester (A) may have both a hydroxyl group and an acyloxy group at the molecular chain end.
- the liquid crystal polyester (A) has a hydroxyl group at one end of the molecular chain and an acyloxy group at the other end. It may have a group.
- the liquid crystalline polyester (A) is preferably a liquid crystalline polyester having at least a structural unit (repeating structural unit) derived from an aromatic compound (aromatic compound monomer) from the viewpoint of optical anisotropy of the melt.
- the liquid crystal polyester (A) is a liquid crystal polyester containing at least one structural unit derived from at least one aromatic compound selected from the group consisting of an aromatic hydroxycarboxylic acid, an aromatic dicarboxylic acid, and an aromatic diol. It is preferable that
- aromatic hydroxycarboxylic acid examples include 4-hydroxybenzoic acid, 3-hydroxybenzoic acid, 1-hydroxy-2-naphthoic acid, 3-hydroxy-2-naphthoic acid, 6-hydroxy-2-naphthoic acid, Examples thereof include 5-hydroxy-1-naphthoic acid, 4′-hydroxy [1,1′-biphenyl] -4-carboxylic acid, and derivatives thereof.
- the derivative include compounds in which the aromatic ring (aromatic ring) of the aromatic hydroxycarboxylic acid is substituted with a substituent having 0 to 20 carbon atoms (preferably 0 to 10 carbon atoms).
- substituents examples include an alkyl group [eg, methyl group, ethyl group, etc.]; alkenyl group [eg, vinyl group, allyl group, etc.]; alkynyl group [eg, ethynyl group, propynyl group, etc.]; halogen atom [ For example, chlorine atom, bromine atom, iodine atom, etc.]; hydroxyl group; alkoxy group [eg, C 1-6 alkoxy group such as methoxy group, ethoxy group, propoxy group, isopropyloxy group, butoxy group, isobutyloxy group (preferably Is a C 1-4 alkoxy group, etc.]; an alkenyloxy group [for example, a C 2-6 alkenyloxy group such as an allyloxy group (preferably a C 2-4 alkenyloxy group), etc.]; an aryloxy group [eg, a phenoxy group , tolyloxy
- C 6-14 arylthio group which may have a substituent such as an alkoxy group]; aralkylthio group [for example, benzylthio group, C 7-18 aralkyl such as a phenethylthio group Thio group etc.]; carboxyl group; alkoxycarbonyl group [eg C 1-6 alkoxy-carbonyl group such as methoxycarbonyl group, ethoxycarbonyl group, propoxycarbonyl group, butoxycarbonyl group etc.]; aryloxycarbonyl group [eg phenoxy C 6-14 aryloxy-carbonyl group such as carbonyl group, tolyloxycarbonyl group, naphthyloxycarbonyl group, etc.]; Aralkyloxycarbonyl group [for example, C 7-18 aralkyloxy-carbonyl group such as benzyloxycarbonyl group, etc.] Amino group; mono- or dialkylamino group; For example, methyl
- liquid crystalline polyester (A) may have 1 type of the structural unit derived from aromatic hydroxycarboxylic acid, and may have 2 or more types.
- aromatic dicarboxylic acid examples include phthalic acid, terephthalic acid, isophthalic acid, 2,6-naphthalenedicarboxylic acid, 1,5-naphthalenedicarboxylic acid, [1,1′-biphenyl] -4,4′-dicarboxylic acid. And acid, 4,4′-oxybis (benzoic acid), 4,4′-thiobis (benzoic acid), 4- [2- (4-carboxyphenoxy) ethoxy] benzoic acid, and derivatives thereof.
- the derivatives include compounds in which the aromatic ring of the aromatic dicarboxylic acid is substituted with a substituent having 0 to 20 carbon atoms (preferably 0 to 10 carbon atoms). As said substituent, the thing similar to the substituent in aromatic hydroxycarboxylic acid is illustrated.
- liquid crystalline polyester (A) may have 1 type of the structural unit derived from aromatic dicarboxylic acid, and may have 2 or more types.
- aromatic diol examples include 4,4′-dihydroxybiphenyl, hydroquinone, resorcinol, 2,6-naphthalenediol, 1,5-naphthalenediol, [1,1′-biphenyl] -4,4′-diol. 4,4′-dihydroxydiphenyl ether, bis (4-hydroxyphenyl) methanone, bisphenol A, bisphenol F, bisphenol S, (phenylsulfonyl) benzene, [1,1′-biphenyl] -2,5-diol, and these And derivatives thereof.
- liquid crystalline polyester (A) may have 1 type of the structural unit derived from aromatic diol, and may have 2 or more types.
- the ratio of the total amount is not particularly limited, but is preferably 60 to 100% by weight, more preferably 80 to 100% by weight, and still more preferably 90 to 100% by weight.
- the liquid crystal polyester (A) is substantially composed only of structural units derived from the above-described aromatic compound (aromatic hydroxycarboxylic acid, aromatic dicarboxylic acid, aromatic diol).
- the ratio is less than 60% by weight, depending on the structural unit derived from another monomer to be introduced, the liquid crystal polyester (A) is less likely to exhibit liquid crystallinity in a molten state, Moisture resistance (hydrolysis resistance) may decrease.
- the liquid crystalline polyester (A) is a structural unit other than the above-mentioned structural units (structural units derived from aromatic hydroxycarboxylic acids, structural units derived from aromatic dicarboxylic acids, structural units derived from aromatic diols) ("other structural units").
- structural units derived from aromatic hydroxycarboxylic acids, structural units derived from aromatic dicarboxylic acids, structural units derived from aromatic diols ("other structural units”
- the other structural unit include a structural unit derived from an aromatic diamine, a structural unit derived from an aromatic amine having a phenolic hydroxyl group, and the like.
- aromatic diamine examples include 1,4-benzenediamine, 1,3-benzenediamine, 4-methyl-1,3-benzenediamine, 4- (4-aminobenzyl) phenylamine, 4- (4- Aminophenoxy) phenylamine, 3- (4-aminophenoxy) phenylamine, 4′-amino-3,3′-dimethyl [1,1′-biphenyl] -4-ylamine, 4′-amino-3,3 ′ -Bis (trifluoromethyl) [1,1'-biphenyl] -4-ylamine, 4-amino-N- (4-aminophenyl) benzamide, 4-[(4-aminophenyl) sulfonyl] phenylamine, bis ( 4-aminophenyl) methanone, and derivatives thereof.
- liquid crystalline polyester (A) may have 1 type of the structural unit derived from aromatic diamine, and may have 2 or more types.
- Examples of the aromatic amine having a phenolic hydroxyl group include 4-aminophenol, 4-acetamidophenol, 3-aminophenol, 3-acetamidophenol, 6-amino-2-naphthol, 5-amino-1-naphthol, Examples thereof include 4′-hydroxy- [1,1′-biphenyl] -4-amine, 4-amino-4′-hydroxydiphenylmethane, and derivatives thereof.
- Examples of the derivatives include compounds in which an aromatic ring of the aromatic amine having a phenolic hydroxyl group is substituted with a substituent having 0 to 20 carbon atoms (preferably 0 to 10 carbon atoms).
- liquid crystalline polyester (A) may have 1 type of the structural unit derived from the aromatic amine which has a phenolic hydroxyl group, and may have 2 or more types.
- the ratio of the total amount is not particularly limited, but is preferably 30% by weight or less (for example, 0 to 30% by weight), more preferably 10% by weight or less, and further preferably 5% by weight or less. When the said ratio exceeds 30 weight%, the moisture absorption resistance (hydrolysis resistance) of hardened
- the liquid crystal polyester (A) can be produced by polymerizing the above aromatic compound (monomer) by a known or conventional method, and the production method is not particularly limited.
- the above-mentioned aromatic hydroxycarboxylic acid, aromatic diol, aromatic amine having a phenolic hydroxyl group, an aromatic compound having a hydroxyl group or an amino group, such as an aromatic diamine, an excess amount of fatty acid anhydride It can be produced by reacting the acylated product obtained by the reaction with an aromatic compound having a carboxyl group such as aromatic hydroxycarboxylic acid or aromatic dicarboxylic acid (transesterification reaction, amide exchange reaction). More specifically, for example, it can be produced by the method described in JP-A-2007-119610.
- a liquid crystal polyester (A) it is also possible to use a commercial item.
- a method for producing the liquid crystalline polyester (A) having a hydroxyl group at the molecular chain terminal for example, a method of controlling the monomer composition so that the hydroxyl group becomes excessive (for example, excessive aromatic diol as the monomer component) Etc.) and the like.
- the ratio with the group is not particularly limited, but the hydroxyl group is 1.02 mol or more with respect to 1 mol of the functional group that undergoes a condensation reaction with the hydroxyl group.
- 1.02 to 100 mol is preferable, more preferably 1.05 mol or more, and still more preferably 1.10 mol or more.
- the ratio of the aromatic diol to the total amount (100 mol%) of the monomer constituting the liquid crystal polyester (A) is not particularly limited, but is preferably 3 to 25 mol%, more preferably 4 to 25 mol%.
- the hydroxyl group of the liquid crystal polyester (A) having a hydroxyl group at the molecular chain terminal is converted to a known or conventional acylating agent (for example, And a method of acylation using a fatty acid anhydride such as acetic anhydride, an acid halide, etc.).
- the monomer is substantially an aromatic compound (for example, the above-mentioned aromatic hydroxycarboxylic acid, aromatic dicarboxylic acid, aromatic Using only aromatic diols), or by adding an aromatic compound to the reactive group at the end of the liquid crystal polyester having a reactive group such as a hydroxyl group or a carboxyl group at the end of the molecular chain.
- aromatic compound for example, the above-mentioned aromatic hydroxycarboxylic acid, aromatic dicarboxylic acid, aromatic Using only aromatic diols
- an aromatic compound to the reactive group at the end of the liquid crystal polyester having a reactive group such as a hydroxyl group or a carboxyl group at the end of the molecular chain. Examples thereof include a method of forming an aromatic ring at the terminal.
- Examples of a method for producing a liquid crystal polyester (A) having a conjugated diene structure at the molecular chain terminal include, for example, a conjugated diene with respect to the reactive group of the liquid crystal polyester having a reactive group such as a hydroxyl group or a carboxyl group at the terminal. Examples thereof include a method of reacting a compound having a structure and capable of undergoing addition reaction with the reactive group (for example, (1-methyl-2,4-cyclopentadien-1-yl) methanol).
- the average degree of polymerization of the liquid crystal polyester (A) is not particularly limited, but is preferably 3 to 30, more preferably 4 to 25, still more preferably 5 to 20. If the average degree of polymerization is less than 3, the curing reactivity may decrease. On the other hand, if the average degree of polymerization exceeds 30, the reaction temperature during curing may increase. In addition, the average degree of polymerization of liquid crystalline polyester (A) can be calculated
- the glass transition temperature (Tg) of the liquid crystalline polyester (A) is not particularly limited, but is preferably 30 to 150 ° C, more preferably 40 to 120 ° C, and further preferably 50 to 100 ° C. When the glass transition temperature is less than 30 ° C., the heat resistance of the cured product may be inferior. On the other hand, when the glass transition temperature exceeds 150 ° C., it is necessary to carry out melt mixing of the liquid crystal polyester (A) and the compound (B) at a high temperature, and the thermopolymerizable functional group of the compound (B) undergoes a polymerization reaction during the melt mixing. May occur.
- the glass transition temperature of liquid crystalline polyester (A) can be measured by thermal analysis and dynamic viscoelasticity measurements, such as DSC and TGA, for example.
- the melting point (Tm) of the liquid crystal polyester (A) is not particularly limited, but is preferably 250 ° C. or lower (for example, 40 to 250 ° C.), more preferably 80 to 220 ° C., and further preferably 120 to 200 ° C.
- Tm melting point
- fusing point of liquid crystalline polyester (A) can be measured by thermal analysis and dynamic viscoelasticity measurement, such as DSC and TGA, for example.
- the compound (B) for constituting the thermosetting liquid crystal polyester composition of the present invention is an addition-reactive group that the liquid crystal polyester (A) has at the molecular chain end in the molecule (in one molecule).
- A a functional group (sometimes referred to as “addition reactive group (b)”) that reacts with (at least one selected from the group consisting of a hydroxyl group, an acyloxy group, an aromatic ring, and a conjugated diene structure);
- a compound having at least a thermopolymerizable functional group thermosetting functional group
- the addition reactive group (b) is not particularly limited as long as it is a functional group capable of reacting with the addition reactive group (a) of the liquid crystal polyester (A), but from the viewpoint of the temperature at which the reaction proceeds.
- an ⁇ , ⁇ -unsaturated carbonyl group eg, a ketone group having a carbon-carbon unsaturated bond between the ⁇ -position and the ⁇ -position of the carbonyl carbon, and a carbon-carbon unsaturated group between the ⁇ -position and the ⁇ -position of the carbonyl carbon.
- a compound (B) may have 1 type of the said addition reactive group (b), and may have 2 or more types.
- the ⁇ , ⁇ -unsaturated carbonyl group, epoxy group, maleimide group, ester group, acid anhydride group, and carboxyl group are addition-reactive groups that react with hydroxyl groups.
- Group (reactive group for hydroxyl group) the addition-reactive groups (b) exemplified above, the carboxyl group is an addition-reactive group that reacts with the acyloxy group (against the acyloxy group-reactive group).
- maleimide groups and acid anhydride groups particularly maleic anhydride groups
- react with aromatic rings cycloaddition reaction
- cycloaddition reaction cycloaddition reaction
- the number of addition-reactive groups (b) in the compound (B) may be one or more, and is not particularly limited, but is preferably 1 to 10, more preferably 1 to 5.
- thermopolymerizable functional group is not particularly limited as long as it is a functional group that can be polymerized by heating, but in terms of the temperature at which the polymerization reaction proceeds, for example, a maleimide group, a nadiimide group, a phthalimide group, a cyanate group, Examples thereof include a nitrile group, a phthalonitrile group, a styryl group, an ethynyl group, a propargyl ether group, a benzocyclobutane group, a biphenylene group, and substituted or derivative thereof.
- guide_body the thermopolymerizable functional group etc.
- thermopolymerizable functional group which the substituent (For example, the substituent in the above-mentioned aromatic hydroxycarboxylic acid etc.) couple
- bonded with the said thermopolymerizable functional group are mentioned.
- a maleimide group is preferable in that part or all of the structure functions also as the addition-reactive group (b).
- a compound (B) may have 1 type of the said thermopolymerizable functional group, and may have 2 or more types.
- the number of the thermally polymerizable functional groups in the compound (B) may be one or more, and is not particularly limited, but is preferably 1 to 10, more preferably 1 to 5.
- the compound (B) needs to have at least one addition-reactive group (b) and at least one thermopolymerizable functional group.
- the compound (B) has a maleimide group that functions as both an addition-reactive group (b) and a thermopolymerizable functional group, it is necessary to have two or more maleimide groups.
- the ⁇ carbon- ⁇ carbon double bond in the maleimide group disappears by reacting with the hydroxyl group, aromatic ring, or conjugated diene structure of the liquid crystal polyester (A), and can no longer function as a thermopolymerizable functional group. It is.
- Examples of the compound (B) include one or more addition-reactive groups (b) and one or more heat-polymerizable functional groups in the molecule, and a carbon number of 100 or less (preferably 10 to 50).
- Compounds. Examples of such a compound (B) include a hydrocarbon group, a heterocyclic group, or a group in which two or more of these are bonded via one or more of a linking group (a divalent group having one or more atoms). And the like.
- Examples of the hydrocarbon group, the heterocyclic group, and a group in which two or more of these are bonded via one or more of the linking groups include, for example, groups exemplified as X 1 and X 2 in the following formula (i) (organic groups) ) And the like.
- the compound (B) includes a compound represented by the following formula (i) ( ⁇ , ⁇ -unsaturated carbonyl group (when the unsaturated group is a double bond) and a thermally polymerizable functional group. Compound).
- X 1 and X 2 in the above formula (i) are the same or different and represent an organic group.
- the organic group is not particularly limited, but includes a substituted or unsubstituted hydrocarbon group, a substituted or unsubstituted heterocyclic group, a group in which two or more of these groups are bonded via one or more linking groups, and the like. Can be mentioned.
- hydrocarbon group examples include an aliphatic hydrocarbon group, an alicyclic hydrocarbon group, an aromatic hydrocarbon group, and a group in which two or more of these are bonded.
- aliphatic hydrocarbon group examples include an alkyl group, an alkenyl group, an alkynyl group, and a divalent or higher valent group corresponding thereto.
- alkyl group examples include C 1-20 alkyl groups such as methyl group, ethyl group, propyl group, isopropyl group, butyl group, hexyl group, octyl group, isooctyl group, decyl group, and dodecyl group (preferably C 1 -10 alkyl group, more preferably C 1-4 alkyl group).
- alkenyl group examples include vinyl group, allyl group, methallyl group, 1-propenyl group, isopropenyl group, 1-butenyl group, 2-butenyl group, 3-butenyl group, 1-pentenyl group and 2-pentenyl group.
- C 2-20 alkenyl groups (preferably C 2-10 alkenyl groups, more preferably C 2-4 alkenyl groups) such as 3-pentenyl group, 4-pentenyl group and 5-hexenyl group.
- alkynyl group include C 2-20 alkynyl groups such as ethynyl group and propynyl group (preferably C 2-10 alkynyl group, more preferably C 2-4 alkynyl group).
- Examples of the alicyclic hydrocarbon group include a C 3-12 cycloalkyl group such as a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, and a cyclododecyl group, and a corresponding divalent or higher group; a cyclohexenyl group.
- C 3-12 cycloalkenyl groups and corresponding divalent or higher groups; bicycloheptanyl groups, bicycloheptenyl groups, and corresponding divalent or higher divalent groups such as C 4-15 bridged cyclic carbonization A hydrogen group etc. are mentioned.
- aromatic hydrocarbon group examples include a C 6-14 aryl group (particularly a C 6-10 aryl group) such as a phenyl group and a naphthyl group, and a corresponding divalent or higher group.
- hydrocarbon group examples include a group in which an aliphatic hydrocarbon group and an alicyclic hydrocarbon group such as a cyclohexylmethyl group, a methylcyclohexyl group, and a corresponding divalent or higher valent group are bonded; C 7-18 aralkyl groups such as benzyl and phenethyl groups (particularly C 7-10 aralkyl groups), C 6-10 aryl-C 2-6 alkenyl groups such as cinnamyl groups, C 1-4 alkyls such as tolyl groups Examples thereof include a C 2-4 alkenyl-substituted aryl group such as a substituted aryl group and a styryl group, and a group in which an aliphatic hydrocarbon group and an aromatic hydrocarbon group such as a corresponding divalent or higher valent group are bonded.
- a substituent which the said hydrocarbon group may have, the group similar to the substituent in the above-mentioned aromatic hydroxy
- heterocyclic group examples include a pyridyl group, a furyl group, a thienyl group, and a divalent or higher valent group corresponding thereto.
- substituent which the said heterocyclic group may have the group similar to the substituent in the above-mentioned aromatic hydroxycarboxylic acid is mentioned, for example.
- hydrocarbon group examples include two or more hydrocarbon groups having one or more linking groups [a divalent group having one or more atoms; for example, an ester bond, an ether bond, a carbonate bond, an amide bond, a thioether bond, And a group linked by a thioester bond, —NR— (R represents a hydroxyl group or an alkyl group), an imide bond, a group in which two or more of these are bonded, and the like.
- the heterocyclic group also include a group in which two or more heterocyclic groups are directly bonded.
- the organic group (X 1 , X 2 ) is a group in which one or more of the hydrocarbon groups and one or more of the heterocyclic groups are bonded directly and / or through one or more linking groups. May be.
- X 1 and X 2 in the above formula (i) may be bonded to each other to form a ring together with the three carbon atoms shown in the formula.
- examples of the ring structure formed by X 1 and X 2 and the three carbon atoms shown in the formula include a cycloalkenone ring, a cycloalkenedione ring, a flange-on ring (maleic anhydride ring).
- a pyrrole dione ring maleimide ring
- a lactone ring having a carbon-carbon unsaturated bond between the ⁇ -position and the ⁇ -position of the carbonyl carbon, and a carbon-carbon unsaturated bond between the ⁇ -position and the ⁇ -position of the carbonyl carbon.
- a lactam ring is
- R 1 and R 2 in the above formula (i) are the same or different and represent a hydrogen atom or an alkyl group which may have a substituent.
- the alkyl group include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a s-butyl group, a t-butyl group, a pentyl group, a hexyl group, an octyl group, and a 2-ethylhexyl group.
- a linear or branched alkyl group having 1 to 20 carbon atoms.
- the substituent that the alkyl group may have include the same groups as the substituent in the above-described aromatic hydroxycarboxylic acid (excluding the alkyl group).
- Y 1 and Y 2 in the above formula (i) are the same or different and represent a thermally polymerizable functional group.
- the thermally polymerizable functional group include the above-described thermally polymerizable functional groups.
- n1 and n2 in the above formula (i) are the same or different and represent an integer of 0 or more.
- the sum of n1 and n2 (n1 + n2) represents an integer of 1 or more (that is, the compound represented by the formula (i) has one or more thermopolymerizable functional groups in the molecule).
- the total of n1 and n2 is preferably, for example, an integer of 1 to 10 (more preferably an integer of 1 to 5).
- bonding positions of Y 1 and Y 2 with respect to X 1 and X 2 are not particularly limited.
- n1 (or n2) is an integer of 2 or more, plural Y 1 (or Y 2) may be the same or different.
- examples of the compound (B) include compounds represented by the following formula (ii) (a compound having an ⁇ , ⁇ -unsaturated carbonyl group (when the unsaturated group is a triple bond) and a thermally polymerizable functional group). It is done.
- X 3 and X 4 in the above formula (ii) are the same or different and represent an organic group.
- Examples of the organic group include the same organic groups as those exemplified as X 1 and X 2 in formula (i).
- X 3 and X 4 in the above formula (ii) are bonded to each other to form a ring together with the three carbon atoms shown in the formula. It may be.
- Y 3 and Y 4 in the above formula (ii) are the same or different and represent a thermally polymerizable functional group.
- the thermally polymerizable functional group include the above-described thermally polymerizable functional groups.
- n3 and n4 in the above formula (ii) are the same or different and represent an integer of 0 or more.
- the sum of n3 and n4 (n3 + n4) represents an integer of 1 or more (that is, the compound represented by the above formula (ii) has one or more thermopolymerizable functional groups in the molecule).
- the total of n3 and n4 is preferably, for example, an integer of 1 to 10 (more preferably an integer of 1 to 5).
- the bonding positions of Y 3 and Y 4 to X 3 and X 4 are not particularly limited. In the case n3 (or n4) is an integer of 2 or more, plural Y 3 (or Y 4) may be the same or different.
- examples of the compound (B) include compounds represented by the following formula (iii) (a carboxylic acid having a thermally polymerizable functional group or a derivative thereof).
- R a in the above formula (iii) represents a hydroxyl group (—OH), an alkoxy group, a halogen atom, or an acyloxy group.
- alkoxy group include alkoxy groups having 1 to 20 carbon atoms such as a methoxy group, an ethoxy group, and a propoxy group, and derivatives thereof.
- halogen atom include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.
- the acyloxy group include an acetyloxy group, a propionyloxy group, a butyryloxy group, and a group represented by the following formula.
- X 5 , Y 5 and n5 in the following formula are the same as those in the above formula (iii).
- X 5 in the above formula (iii) represents an organic group.
- the organic group include the same organic groups as those exemplified as X 1 and X 2 in formula (i).
- Y 5 in the above formula (iii) represents a thermally polymerizable functional group.
- the thermally polymerizable functional group include the above-described thermally polymerizable functional groups.
- n5 in the said formula (iii) shows an integer greater than or equal to 1.
- n5 is preferably an integer of 1 to 10 (more preferably an integer of 1 to 5).
- the bonding position of Y 5 to X 5 is not particularly limited. In the case n5 is an integer of 2 or more, the plurality of Y 5, may be the same or may be different.
- examples of the compound (B) include a compound represented by the following formula (iv) (an epoxy compound having a thermally polymerizable functional group).
- X 6 in the above formula (iv) represents an organic group.
- Examples of the organic group include the same organic groups as those exemplified as X 1 and X 2 in formula (i).
- Y 6 in the above formula (iv) represents a thermally polymerizable functional group.
- Examples of the thermally polymerizable functional group include the above-described thermally polymerizable functional groups.
- N6 in the above formula (iv) represents an integer of 1 or more. As n6, for example, an integer of 1 to 10 (more preferably an integer of 1 to 5) is preferable. Further, the bonding position of Y 6 to X 6 is not particularly limited. In the case n6 is an integer of 2 or more, plural Y 6 may be the same or different.
- R 3 to R 5 in the above formula (iv) are the same or different and each represents a hydrogen atom or an alkyl group which may have a substituent.
- Examples of the alkyl group that may have a substituent include the same groups as those exemplified as R 1 and R 2 in the above formula (i).
- the compound (B) is, for example, methylene bismaleimide (4,4′-diphenylmethane bismaleimide), m-phenylene bismaleimide, 2,2′-bis [4- (4-maleimidophenoxy) Phenyl] propane, ethylene bismaleimide, o-phenylene bismaleimide, p-phenylene bismaleimide, m-toluylene bismaleimide, 4,4'-biphenylene bismaleimide, 4,4 '-[3,3'-dimethyl-biphenylene Bismaleimide, 4,4 ′-[3,3′-dimethyldiphenylmethane] bismaleimide, 4,4 ′-[3,3′-diethyldiphenylmethane] bismaleimide, 4,4′-diphenylmethane bismaleimide, 4,4 '-Diphenylpropane bismaleimide, 4,4'-diphenyl ether bismaleimide ,
- thermosetting liquid crystal polyester composition of the present invention is obtained by melt-mixing the liquid crystal polyester (A) and the compound (B) as described above.
- the liquid crystal polyester (A) and the compound (B) are melt-mixed, the liquid crystal polyester (A) may be referred to as a component other than the compound (B) (sometimes referred to as “other components”; for example, an inorganic filler described later) Etc.) may be mixed together.
- the addition-reactive group (a) of the liquid crystal polyester (A) mainly by melt mixing (at least one selected from the group consisting of a hydroxyl group, an acyloxy group, an aromatic ring, and a conjugated diene structure), Reaction (addition reaction) with the addition-reactive group (b) of the compound (B) mainly proceeds to obtain a liquid crystal polyester composition having thermosetting properties.
- the thermosetting liquid crystal polyester composition of the present invention the liquid crystal polyester (A) can be used singly or in combination of two or more.
- a compound (B) can be used individually by 1 type, and can also be used in combination of 2 or more type.
- the ratio (mixing ratio) of the liquid crystal polyester (A) and the compound (B) constituting the thermosetting liquid crystal polyester composition of the present invention varies depending on the types of the liquid crystal polyester (A) and the compound (B) and is not particularly limited.
- the ratio (blending amount) of the compound (B) to 100 parts by weight of the liquid crystalline polyester (A) is preferably 10 to 300 parts by weight, more preferably 20 to 250 parts by weight, and still more preferably 30 to 200 parts by weight. .
- the ratio of the compound (B) is less than 10 parts by weight, the curability of the thermosetting liquid crystal polyester composition may be lowered.
- the content of the compound (B) exceeds 300 parts by weight, a large amount of the compound (B) remains in the thermosetting liquid crystal polyester composition, which may adversely affect the physical properties of the cured product.
- the temperature of the melt mixing is not particularly limited as long as it is a temperature at which the liquid crystal polyester (A) and the compound (B) can be melted (particularly, not lower than the melting point of the liquid crystal polyester (A)).
- it is preferably 80 to 200 ° C., more preferably 120 to 180 ° C.
- the temperature of melt mixing exceeds 200 ° C., the polymerization reaction of the thermally polymerizable functional group derived from the compound (B) may proceed.
- the temperature of melt mixing can be controlled to be constant during melt mixing, or can be controlled to vary stepwise or continuously.
- the melt mixing time is not particularly limited, but is preferably 30 to 600 minutes, more preferably 60 to 480 minutes.
- the melt mixing time is less than 30 minutes, the progress of the reaction between the liquid crystal polyester (A) and the compound (B) becomes insufficient, and the physical properties of the cured product may be lowered.
- the melt mixing time exceeds 600 minutes, the productivity of the cured product may be reduced.
- the melting and mixing can be performed under normal pressure, or under reduced pressure or under pressure. Moreover, the said melt mixing can also be performed in one step, and can also be performed by dividing into two or more steps.
- the melt mixing can be carried out using a known or conventional apparatus (melt mixing apparatus).
- a known or conventional apparatus Melt mixing apparatus
- Extruders such as a single screw extruder and a twin screw extruder
- Mixers such as a paddle mixer, a high-speed fluidity mixer, a ribbon mixer, a Banbury mixer, a Haake mixer, a static mixer
- thermosetting liquid crystal polyester composition of the present invention is obtained by melt-mixing the liquid crystal polyester (A) and the compound (B).
- the addition reactive group (a) at the molecular chain end of the liquid crystal polyester (A) and the addition reactive group (b) of the compound (B) react during melt mixing. It is a composition containing the adduct formed by this as an essential component.
- the adduct is one in which one or more liquid crystal polyesters (A) and one or more compounds (B) are bonded by the above-described addition reaction.
- the above-mentioned adduct of the liquid crystal polyester (A) and the compound (B) is, for example, a case where the liquid crystal polyester (A) has a hydroxyl group as the addition reactive group (a), and the compound (B)
- the compound represented by the above formula (i) is used, it is represented by the following formula (1).
- L 1 in the above formula (1) represents a liquid crystal polyester skeleton.
- the liquid crystal polyester skeleton include a skeleton obtained by removing one hydroxyl group (hydroxyl group at the molecular chain terminal) from the liquid crystal polyester (A), two or more liquid crystal polyesters (A) having one or more compounds (B) (formula (i And a skeleton obtained by removing one hydroxyl group (hydroxyl group at the end of the molecular chain) from the compound (addition product) formed by adding and linking to the compound represented by ()).
- X 1 , X 2 , R 1 , R 2 , Y 1 , Y 2 , n1, and n2 in the above formula (1) are the same as those in the above formula (i).
- the adduct is, for example, a case where the liquid crystal polyester (A) has an aromatic ring as the addition-reactive group (a), and the compound represented by the above formula (i) is used as the compound (B).
- an adduct formed by cyclization reaction (cycloaddition reaction) between the aromatic ring of the liquid crystal polyester (A) and the carbon-carbon double bond of the compound (B) may be used.
- the adduct is, for example, a case where the liquid crystal polyester (A) has a conjugated diene structure as the addition reactive group (a), and the compound represented by the above formula (i) is used as the compound (B).
- an adduct formed by a cyclization reaction (cycloaddition reaction) between the conjugated diene structure of the liquid crystalline polyester (A) and the carbon-carbon double bond of the compound (B) may be used.
- the above-mentioned adduct of the liquid crystal polyester (A) and the compound (B) is, for example, a case where the liquid crystal polyester (A) has a hydroxyl group as the addition reactive group (a), and the compound (B) has the above formula.
- the compound represented by (ii) is used, it is represented by the following formula (2).
- L 2 in the above formula (2) represents a liquid crystal polyester skeleton.
- the liquid crystal polyester skeleton include a skeleton obtained by removing one hydroxyl group (hydroxyl group at the molecular chain terminal) from the liquid crystal polyester (A), two or more liquid crystal polyesters (A) having one or more compounds (B) (formula (ii) And a skeleton obtained by removing one hydroxyl group (hydroxyl group at the end of the molecular chain) from the compound (addition product) formed by adding and linking to the compound represented by ()).
- X 3 , X 4 , Y 3 , Y 4 , n3, and n4 in the above formula (2) are the same as those in the above formula (ii).
- the above-mentioned adduct of the liquid crystal polyester (A) and the compound (B) is, for example, a case where the liquid crystal polyester (A) has a hydroxyl group or an acyloxy group as the addition reactive group (a), and the compound (B)
- the compound represented by the above formula (iii) is used, it is represented by the following formula (3).
- L 3 in the above formula (3) represents a liquid crystal polyester skeleton.
- the liquid crystal polyester skeleton include a skeleton obtained by removing one hydroxyl group (hydroxyl group at the molecular chain terminal) or acyloxy group (acyloxy group at the molecular chain terminal) from the liquid crystal polyester (A), and two or more liquid crystal polyesters (A).
- X 5 , Y 5 , and n5 in the above formula (3) are the same as those in the above formula (iii).
- the above-mentioned adduct of the liquid crystal polyester (A) and the compound (B) is, for example, a case where the liquid crystal polyester (A) has a hydroxyl group as an addition reactive group, and the compound (B) has the above formula (iv).
- the compound represented by this it is represented by the following formula (4) or the following formula (5).
- L 4 in the above formulas (4) and (5) represents a liquid crystal polyester skeleton.
- the liquid crystal polyester skeleton include a skeleton obtained by removing one hydroxyl group (hydroxyl group at the molecular chain terminal) from the liquid crystal polyester (A), two or more liquid crystal polyesters (A) having one or more compounds (B) (formula (iv) And a skeleton obtained by removing one hydroxyl group (hydroxyl group at the end of the molecular chain) from the compound (addition product) formed by adding and linking to the compound represented by ()).
- X 6 , Y 6 , R 3 to R 5 and n6 are the same as those in the above formula (iv).
- thermosetting liquid crystal polyester composition of the present invention may contain an inorganic filler.
- an inorganic filler By containing an inorganic filler, the performance of the cured product can be adjusted according to the purpose (use).
- the inorganic filler known or conventional inorganic fillers can be used, and are not particularly limited.
- silica for example, natural silica, synthetic silica
- aluminum oxide for example, ⁇ -alumina
- oxidation Oxides such as titanium, zirconium oxide, magnesium oxide, cerium oxide, yttrium oxide, calcium oxide, zinc oxide and iron oxide
- carbonates such as calcium carbonate and magnesium carbonate
- sulfates such as barium sulfate, aluminum sulfate and calcium sulfate
- Nitride such as aluminum nitride, silicon nitride, titanium nitride, boron nitride
- hydroxide such as calcium hydroxide, aluminum hydroxide, magnesium hydroxide
- the inorganic filler may have any structure such as a solid structure, a hollow structure, and a porous structure. Moreover, the said inorganic filler may be surface-treated with well-known surface treating agents, such as organosilicon compounds, such as organohalosilane, organoalkoxysilane, and organosilazane, for example.
- organosilicon compounds such as organohalosilane, organoalkoxysilane, and organosilazane, for example.
- an inorganic filler can also be used individually by 1 type, and can also be used in combination of 2 or more type.
- thermosetting liquid-crystal polyester composition of this invention for semiconductor sealing materials, it is preferable to use a silica (silica filler) etc., and the heat conductivity and heat dissipation characteristic of hardened
- silica silicon filler
- alumina alumina fine particles
- the content of the inorganic filler in the thermosetting liquid crystal polyester composition of the present invention is not particularly limited, but the total amount (total amount) of the liquid crystal polyester (A) and the compound (B) constituting the thermosetting liquid crystal polyester composition is 100.
- the amount is preferably 0 to 500 parts by weight, more preferably 0 to 300 parts by weight with respect to parts by weight.
- the liquid crystal polyester (A) and compound (B) present in the thermosetting liquid crystal polyester composition In addition, the amount of the liquid crystal polyester (A) and the compound (B) constituting the adduct is also included, and the same applies to other than this paragraph.
- the inorganic filler can be blended together when the thermosetting liquid crystal polyester composition of the present invention is prepared (when the liquid crystal polyester (A) and the compound (B) are melt-mixed), or the thermosetting of the present invention.
- the liquid crystalline polyester composition can be blended after once prepared.
- thermosetting liquid crystal polyester composition of the present invention may contain an additive for promoting or controlling the curing reaction.
- the additive is not particularly limited, and examples thereof include diamino compounds [for example, diaminodiphenylmethane], diallyl compounds [for example, diallyl bisphenol A], and triazines [for example, 1,3,5-tri-2-propenyl-1].
- the content (blending amount) of the additive is not particularly limited, but is 0 to 30 with respect to 100 parts by weight of the total amount of the liquid crystal polyester (A) and the compound (B) constituting the thermosetting liquid crystal polyester composition. Part by weight is preferred, more preferably 1 to 20 parts by weight.
- thermosetting liquid crystal polyester composition of the present invention when melt-mixing the liquid crystal polyester (A) and the compound (B)), or the thermosetting of the present invention.
- the liquid crystalline polyester composition can be blended after once prepared.
- thermosetting liquid crystal polyester composition of the present invention may contain other additives as long as the effects of the present invention are not impaired.
- additives known or commonly used additives can be used, and are not particularly limited.
- organic resins such as silicone resins, epoxy resins and fluororesins; solvents; stabilizers (antioxidants, ultraviolet absorptions) Flame retardants (phosphorous flame retardants, halogen flame retardants, inorganic flame retardants, etc.); flame retardant aids; reinforcing materials; nucleating agents; coupling agents; lubricants; Wax; Plasticizer; Release agent; Impact modifier; Color improver; Fluidity improver; Colorant (dye, pigment, etc.); Dispersant; Defoamer; Defoamer; Antibacterial agent; Viscosity adjusting agents; conventional additives such as thickeners are included.
- the said other additive can also be used individually by 1 type, and can also be used in combination of 2 or more type.
- the content of the other additives is not particularly limited, but is preferably 0 to 5% by weight, more preferably 0 to 2% by weight with respect to the total amount (100% by weight) of the thermosetting liquid crystal polyester composition. is there.
- the above-mentioned other additives can be blended together when preparing the thermosetting liquid crystal polyester composition of the present invention (when melt-mixing the liquid crystal polyester (A) and the compound (B)). It can also mix
- thermosetting liquid crystal polyester composition of the present invention is a thermosetting composition obtained by melt-mixing the liquid crystal polyester (A) and the compound (B).
- the liquid crystal polyester (A) having an addition reactive group (a) at the molecular chain end, the addition reactive group (b), and a thermally polymerizable functional group are contained in the molecule.
- the reaction of the addition reactive group (a) of the liquid crystal polyester (A) with the addition reactive group (b) of the compound (B) mainly proceeds during the melt mixing of both components.
- the reaction between the thermally polymerizable functional groups of the compound (B) is to use one that does not substantially proceed.
- thermosetting composition thermosetting composition
- the thermosetting composition thus obtained is, for example, 250 It can be cured at a relatively low temperature of °C or less, and forms a cured product excellent in various physical properties including heat resistance.
- a cured product (sometimes referred to as “cured product of the present invention”) is obtained by curing the thermosetting liquid crystal polyester composition of the present invention by heating (advancing the curing reaction).
- the reaction (polymerization reaction) between the thermally polymerizable functional groups mainly resulting from the compound (B) proceeds by heating, and a cured product is formed.
- heating means known or conventional means can be used, and there is no particular limitation.
- the heating temperature (curing temperature) for curing the thermosetting liquid crystal polyester composition of the present invention is not particularly limited, but is preferably 170 to 250 ° C, more preferably 210 to 250 ° C, and still more preferably 220 to 250 ° C. It is.
- the curing temperature can be controlled to be constant during curing, or can be controlled to vary stepwise or continuously.
- the heating time (curing time) for curing the thermosetting liquid crystal polyester composition of the present invention is not particularly limited, but is preferably 3 to 600 minutes, more preferably 5 to 480 minutes, still more preferably 5 to 360 minutes. It is. If the curing time is less than 3 minutes, the progress of the curing reaction may be insufficient, and the physical properties of the cured product may be reduced. On the other hand, when the curing time exceeds 600 minutes, the productivity of the cured product may decrease.
- thermosetting liquid crystal polyester composition of the present invention can be performed under normal pressure, or can be performed under reduced pressure or under pressure. Moreover, the said hardening can also be performed in one step, and can also be performed by dividing into two or more steps.
- the 5% weight loss temperature (T d5 ) of the cured product of the present invention measured at a temperature elevation rate of 10 ° C./min (in air) is not particularly limited, but is 350 ° C. or higher (eg, 350 to 500 ° C.). Preferably, it is 380 ° C. or higher, more preferably 400 ° C. or higher. If the 5% weight loss temperature is less than 350 ° C., the heat resistance may be insufficient depending on the application.
- the 5% weight loss temperature can be measured by, for example, TG / DTA (simultaneous measurement of differential heat and thermogravimetry).
- the activation energy of the thermal decomposition reaction in the air of the cured product of the present invention is not particularly limited, but is preferably 150 kJ / mol or more (for example, 150 to 350 kJ / mol), more preferably 180 kJ / mol or more, and still more preferably 200 kJ / mol or more. If the activation energy is less than 150 kJ / mol, the heat resistance may be insufficient depending on the application.
- the activation energy can be calculated by, for example, the Ozawa method.
- the Ozawa method is a method in which TG measurement (thermogravimetry) is performed at three or more types of temperature increase rates, and the activation energy of the thermal decomposition reaction is calculated from the obtained thermogravimetric reduction data.
- the cured product of the present invention is a cured product obtained by curing the thermosetting liquid crystal polyester composition of the present invention, it has excellent heat resistance and excellent workability, dimensional stability, low It has linear expansion, high thermal conductivity, low hygroscopicity, and dielectric properties. Furthermore, since the cured product of the present invention is obtained by heating the thermosetting liquid crystal polyester composition of the present invention at a relatively low temperature of 250 ° C. or less, it is excellent in productivity.
- the cured product of the present invention can be used for various applications such as various members and various structural materials.
- it since it is excellent in the above-mentioned various properties, it can be preferably used for applications such as films, prepregs, printed wiring boards, and semiconductor encapsulants.
- the thermosetting liquid crystal polyester composition of the present invention is, in particular, a thermosetting composition for a film, a thermosetting composition for a prepreg, a thermosetting composition for a printed wiring board, and a thermosetting for a semiconductor sealing material. It can be preferably used as a composition.
- the melting point (Tm) and the glass transition temperature (Tg) of the liquid crystalline polyester obtained in the following production example were 20 ° C./degree with a differential scanning calorimeter (“DSC6200”, manufactured by SII Nanotechnology Co., Ltd.). The measurement was performed under the condition of raising the temperature of the minute (under a nitrogen stream). The results are shown in Table 1.
- the 5% weight loss temperature (T d5 ) of the cured product obtained in the following examples was increased by 10 ° C./min with TG / DTA (“TG / DTA6300”, SII Nanotechnology Co., Ltd.). It was measured under temperature conditions (in air). The results are shown in Table 2.
- the same operation as in Production Example 1 was performed to obtain a liquid crystal polyester b having hydroxyl groups at both ends of a molecular chain consisting only of an aromatic unit (a structural unit derived from an aromatic compound).
- the thermal analysis result of the obtained liquid crystal polyester b was as shown in Table 1.
- the obtained liquid crystal polyester b is a monomer pentamer as a result of calculation of the number of terminals of liquid crystal polyester b (by the amine decomposition HPLC method described in JP-A-5-271394) and GPC measurement. It was estimated that there was.
- the thermal analysis result of the obtained liquid crystal polyester c was as shown in Table 1.
- the obtained liquid crystal polyester c was a 20-mer monomer as a result of calculation of the number of terminals of the liquid crystal polyester c (by amine decomposition HPLC method described in JP-A No. 5-271394) and GPC measurement. It was estimated that there was.
- HBA 4-hydroxybenzoic acid
- HNA 6-hydroxy-2-naphthoic acid
- BP 4,4′-dihydroxybiphenyl
- Example 1 [Production of thermosetting liquid crystal polyester composition and cured product thereof] As shown in Table 2, 3.27 g of the liquid crystal polyester a obtained in Example 1 and 1.42 g of methylene bismaleimide were melt-mixed at 170 ° C. for 6 hours to obtain a melt (thermosetting liquid crystal polyester composition). Obtained. Thereafter, the obtained melt was sandwiched between glass plates and heated to 240 ° C. with a hot plate, and the curing reaction was allowed to proceed for 6 hours to obtain a uniform cured product. The 5% weight loss temperature (T d5 ) of the cured product was as shown in Table 2.
- thermosetting liquid crystal polyester composition and a cured product thereof were obtained in the same manner as in Example 1 except that the type and amount of liquid crystal polyester and the amount of bismaleimide compound were changed as shown in Table 2. All of the above cured products were uniform cured products. Table 2 shows the 5% weight loss temperature (T d5 ) of these cured products.
- thermosetting liquid crystal polyester compositions obtained in the examples can be cured (thermosetting) at a relatively low temperature of 250 ° C. or less, and the obtained cured product is 5% by weight.
- the decrease temperature was high and it had excellent heat resistance.
- thermosetting liquid crystal polyester composition of the present invention is used in various applications such as various members and various structural materials, particularly in applications such as films, prepregs, printed wiring boards, and semiconductor encapsulants. It can be preferably used.
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Abstract
Description
化合物(B)における熱重合性官能基が、マレイミド基、ナジイミド基、フタルイミド基、シアネート基、フタロニトリル基、スチリル基、エチニル基、プロパルギルエーテル基、ベンゾシクロブタン基、ビフェニレン基、及びこれらの置換体又は誘導体からなる群より選択された少なくとも1種の熱重合性官能基である前記の熱硬化性液晶ポリエステル組成物を提供する。
本発明の熱硬化性液晶ポリエステル組成物は、以下の成分(A)及び成分(B)を溶融混合することにより得られる熱硬化性組成物(熱硬化性樹脂組成物)である。
成分(A):分子鎖末端に水酸基、アシルオキシ基、芳香族環、及び共役ジエン構造からなる群より選択された少なくとも1種の基(特に、水酸基及び/又はアシルオキシ基)を有する液晶ポリエステル(「液晶ポリエステル(A)」と称する場合がある)
成分(B):水酸基、アシルオキシ基、芳香族環、又は共役ジエン構造と反応する官能基(特に、水酸基及び/又はアシルオキシ基と反応する官能基)、並びに熱重合性官能基を分子内に有する化合物(「化合物(B)」と称する場合がある)
なお、上記「水酸基及び/又はアシルオキシ基」とは、「水酸基及びアシルオキシ基のいずれか一方又は両方」を意味し、他についても同様である。
本発明の熱硬化性液晶ポリエステル組成物を構成するための液晶ポリエステル(A)は、上述のように、分子鎖末端に水酸基、アシルオキシ基、芳香族環、及び共役ジエン構造からなる群より選択された少なくとも1種の基(「付加反応性基(a)」と称する場合がある)を有する液晶ポリエステルである。液晶ポリエステル(A)は、ポリエステル構造を有する重合体(ポリマー又はオリゴマー)であって、その溶融体(例えば、450℃以下における溶融体)が光学的異方性を示す液晶ポリエステル(サーモトロピック液晶ポリマー)である。
本発明の熱硬化性液晶ポリエステル組成物を構成するための化合物(B)は、上述のように、分子内(一分子中)に、液晶ポリエステル(A)が分子鎖末端に有する付加反応性基(a)(水酸基、アシルオキシ基、芳香族環、及び共役ジエン構造からなる群より選択された少なくとも1種)と反応する官能基(「付加反応性基(b)」と称する場合がある)と、熱重合性官能基(熱硬化性官能基)とを少なくとも有する化合物である。
本発明の熱硬化性液晶ポリエステル組成物は、上述のように、液晶ポリエステル(A)と化合物(B)とを溶融混合することにより得られる。液晶ポリエステル(A)と化合物(B)とを溶融混合する際には、液晶ポリエステル(A)、化合物(B)以外の成分(「その他の成分」と称する場合がある;例えば、後述の無機フィラーなど)をともに混合してもよい。後述のように、溶融混合によって主に液晶ポリエステル(A)の付加反応性基(a)(水酸基、アシルオキシ基、芳香族環、及び共役ジエン構造からなる群より選択された少なくとも1種)と、化合物(B)の付加反応性基(b)との反応(付加反応)が主に進行し、熱硬化性を有する液晶ポリエステル組成物が得られる。なお、本発明の熱硬化性液晶ポリエステル組成物を製造するにあたり、液晶ポリエステル(A)は1種を単独で使用することもできるし、2種以上を組み合わせて使用することもできる。同様に、化合物(B)は1種を単独で使用することもできるし、2種以上を組み合わせて使用することもできる。
本発明の熱硬化性液晶ポリエステル組成物を加熱によって硬化させる(硬化反応を進行させる)ことにより、硬化物(「本発明の硬化物」と称する場合がある)が得られる。加熱によって主に化合物(B)に起因する熱重合性官能基同士の反応(重合反応)が進行し、硬化物が形成される。加熱の手段としては、公知乃至慣用の手段を利用することができ、特に限定されない。
下記製造例にて得られた液晶ポリエステルの融点(Tm)及びガラス転移温度(Tg)は、示差走査熱量分析装置(「DSC6200」、エスアイアイ・ナノテクノロジー(株)製)にて、20℃/分の昇温条件(窒素気流下)で測定した。結果を表1に示す。
下記実施例にて得られた硬化物の5%重量減少温度(Td5)は、TG/DTA(「TG/DTA6300」、エスアイアイ・ナノテクノロジー(株))にて、10℃/分の昇温条件(空気中)で測定した。結果を表2に示す。
下記製造例にて得られた液晶ポリエステルの溶融物が液晶性を有することを、以下の手順で確認した。なお、下記の確認では、直交偏光子間に等方性の溶融物を挿入した場合には光が透過しないが、光学的異方性を有する溶融物(液晶性ポリマー)を挿入した場合には光が透過する現象を利用した。
偏光顕微鏡(ライカマイクロシステムズ社製)を使用し、ホットステージ(メトラー・トレド社製)に下記製造例にて得られた液晶ポリエステルを載せて溶融させ、250倍の倍率で観察した。その結果、下記製造例にて得られた液晶ポリエステルの溶融物はいずれも、液晶性を有することが確認された。
[液晶ポリエステルa(10量体)の製造]
表1に示すように、コンデンサーと攪拌機を取り付けた500mLのフラスコに、4-ヒドロキシ安息香酸94.3g(0.682mol)、6-ヒドロキシ-2-ナフトエ酸102.7g(0.546mol)、4,4'-ジヒドロキシビフェニル25.4g(0.136mol)、無水酢酸156.3g(1.53mol)、及び酢酸カリウム10.0mg(0.10mol)を入れ、窒素雰囲気下で140℃まで徐々に温度を上げた後、温度を維持しながら3時間反応させてアセチル化反応を完結させた。次いで、0.8℃/分の速度で340℃まで昇温しながら酢酸及び未反応の無水酢酸を留去した。その後、フラスコ内を徐々に1Torrまで減圧して揮発成分を留去することで、芳香族ユニット(芳香族化合物に由来する構成単位)のみからなる分子鎖の両末端に水酸基を有する液晶ポリエステルaを得た。得られた液晶ポリエステルaの熱分析結果[ガラス転移温度(Tg)、融点(Tm)]は、表1に示す通りであった。なお、得られた液晶ポリエステルaは、液晶ポリエステルaの末端数の算出(特開平5-271394号公報に記載のアミン分解HPLC法による)、及びGPC測定の結果、単量体の10量体であると見積もられた。
[液晶ポリエステルb(5量体)の製造]
表1に示すように、4-ヒドロキシ安息香酸の使用量を81.4g(0.589mol)、6-ヒドロキシ-2-ナフトエ酸の使用量を88.9g(0.472mol)、4,4'-ジヒドロキシビフェニルの使用量を49.4g(0.265mol)、無水酢酸の使用量を165.8g(1.62mol)、酢酸カリウムの使用量を10.0mg(0.10mol)としたこと以外は製造例1と同様の操作を行い、芳香族ユニット(芳香族化合物に由来する構成単位)のみからなる分子鎖の両末端に水酸基を有する液晶ポリエステルbを得た。得られた液晶ポリエステルbの熱分析結果は、表1に示す通りであった。なお、得られた液晶ポリエステルbは、液晶ポリエステルbの末端数の算出(特開平5-271394号公報に記載のアミン分解HPLC法による)、及びGPC測定の結果、単量体の5量体であると見積もられた。
[液晶ポリエステルc(20量体)の製造]
表1に示すように、4-ヒドロキシ安息香酸の使用量を100.9g(0.731mol)、6-ヒドロキシ-2-ナフトエ酸の使用量を110.0g(0.585mol)、4,4'-ジヒドロキシビフェニルの使用量を12.9g(0.069mol)、無水酢酸の使用量を151.4g(1.48mol)、酢酸カリウムの使用量を10.0mg(0.10mol)としたこと以外は製造例1と同様の操作を行い、芳香族ユニット(芳香族化合物に由来する構成単位)のみからなる分子鎖の両末端に水酸基を有する液晶ポリエステルcを得た。得られた液晶ポリエステルcの熱分析結果は、表1に示す通りであった。なお、得られた液晶ポリエステルcは、液晶ポリエステルcの末端数の算出(特開平5-271394号公報に記載のアミン分解HPLC法による)、及びGPC測定の結果、単量体の20量体であると見積もられた。
HBA : 4-ヒドロキシ安息香酸
HNA : 6-ヒドロキシ-2-ナフトエ酸
BP : 4,4'-ジヒドロキシビフェニル
[熱硬化性液晶ポリエステル組成物及びその硬化物の製造]
表2に示すように、実施例1で得られた液晶ポリエステルa3.27gとメチレンビスマレイミド1.42gとを、170℃で6時間溶融混合し、溶融物(熱硬化性液晶ポリエステル組成物)を得た。その後、得られた溶融物をガラス板に挟んでホットプレートで240℃に加熱し、6時間硬化反応を進行させて、均一な硬化物を得た。上記硬化物の5%重量減少温度(Td5)は、表2に示す通りであった。
液晶ポリエステルの種類及び量、ビスマレイミド化合物の量を表2に示すように変更したこと以外は実施例1と同様にして、熱硬化性液晶ポリエステル組成物及びその硬化物を得た。上記硬化物は、何れも均一な硬化物であった。これらの硬化物の5%重量減少温度(Td5)は、表2に示す通りであった。
Claims (7)
- 分子鎖末端に水酸基及び/又はアシルオキシ基を有する液晶ポリエステル(A)と、水酸基及び/又はアシルオキシ基と反応する官能基並びに熱重合性官能基を分子内に有する化合物(B)とを溶融混合することにより得られる熱硬化性液晶ポリエステル組成物。
- 液晶ポリエステル(A)が、芳香族化合物単量体に由来する構成単位を有し、平均重合度が3~30、融点が250℃以下の液晶ポリエステルである請求項1に記載の熱硬化性液晶ポリエステル組成物。
- 化合物(B)における水酸基及び/又はアシルオキシ基と反応する官能基が、α,β-不飽和カルボニル基、エポキシ基、マレイミド基、エステル基、酸無水物基、及びカルボキシル基からなる群より選択された少なくとも1種の官能基であり、
化合物(B)における熱重合性官能基が、マレイミド基、ナジイミド基、フタルイミド基、シアネート基、ニトリル基、フタロニトリル基、スチリル基、エチニル基、プロパルギルエーテル基、ベンゾシクロブタン基、ビフェニレン基、及びこれらの置換体又は誘導体からなる群より選択された少なくとも1種の熱重合性官能基である請求項1又は2に記載の熱硬化性液晶ポリエステル組成物。 - 下記式(1)で表される化合物、下記式(2)で表される化合物、下記式(3)で表される化合物、下記式(4)で表される化合物、及び下記式(5)で表される化合物からなる群より選択された少なくとも1種の化合物を含むことを特徴とする熱硬化性液晶ポリエステル組成物。
- 無機フィラーを含む請求項1~4のいずれか1項に記載の熱硬化性液晶ポリエステル組成物。
- 請求項1~5のいずれか1項に記載の熱硬化性液晶ポリエステル組成物を硬化させることにより得られる硬化物。
- 昇温速度10℃/分(空気中)で測定される5%重量減少温度が350℃以上であり、空気中における熱分解反応の活性化エネルギーが150kJ/mol以上である請求項6に記載の硬化物。
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- 2013-09-25 WO PCT/JP2013/075818 patent/WO2014050850A1/ja active Application Filing
- 2013-09-25 CN CN201380050607.4A patent/CN104684996A/zh active Pending
- 2013-09-25 EP EP13840670.7A patent/EP2902442A4/en not_active Withdrawn
- 2013-09-25 KR KR1020157009143A patent/KR102032191B1/ko active IP Right Grant
- 2013-09-25 US US14/427,857 patent/US20150247034A1/en not_active Abandoned
- 2013-09-27 TW TW102134984A patent/TWI621640B/zh active
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WO2015151763A1 (ja) * | 2014-04-02 | 2015-10-08 | ポリプラスチックス株式会社 | 液晶ポリエステルの製造方法、熱硬化性液晶ポリエステル組成物の製造方法、及び硬化物の製造方法 |
WO2015151815A1 (ja) * | 2014-04-02 | 2015-10-08 | 株式会社ダイセル | 熱硬化性芳香族ポリエステル組成物及びその製造方法 |
WO2015151816A1 (ja) * | 2014-04-02 | 2015-10-08 | 株式会社ダイセル | 熱硬化性液晶ポリエステル組成物の製造方法及び硬化物の製造方法 |
JP2015196795A (ja) * | 2014-04-02 | 2015-11-09 | ポリプラスチックス株式会社 | 熱硬化性液晶ポリエステル組成物の製造方法及び硬化物の製造方法 |
US20170267824A1 (en) * | 2016-03-21 | 2017-09-21 | Ticona Llc | Prepreg composite containing a crosslinked aromatic polyester |
JP2017179119A (ja) * | 2016-03-30 | 2017-10-05 | 株式会社ダイセル | 熱硬化性化合物 |
Also Published As
Publication number | Publication date |
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KR102032191B1 (ko) | 2019-10-15 |
JP2014080557A (ja) | 2014-05-08 |
TW201422667A (zh) | 2014-06-16 |
KR20150063071A (ko) | 2015-06-08 |
JP6128804B2 (ja) | 2017-05-17 |
US20150247034A1 (en) | 2015-09-03 |
CN104684996A (zh) | 2015-06-03 |
EP2902442A4 (en) | 2016-05-18 |
TWI621640B (zh) | 2018-04-21 |
EP2902442A1 (en) | 2015-08-05 |
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