JP7307813B2 - 末端変性ポリブタジエン、金属張積層板用樹脂組成物、プリプレグ、及び金属張積層板 - Google Patents
末端変性ポリブタジエン、金属張積層板用樹脂組成物、プリプレグ、及び金属張積層板 Download PDFInfo
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- JP7307813B2 JP7307813B2 JP2021561453A JP2021561453A JP7307813B2 JP 7307813 B2 JP7307813 B2 JP 7307813B2 JP 2021561453 A JP2021561453 A JP 2021561453A JP 2021561453 A JP2021561453 A JP 2021561453A JP 7307813 B2 JP7307813 B2 JP 7307813B2
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- 229920002857 polybutadiene Polymers 0.000 title claims description 65
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- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
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- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- 229920002121 Hydroxyl-terminated polybutadiene Polymers 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
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- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
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- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
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- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- XVDBWWRIXBMVJV-UHFFFAOYSA-N n-[bis(dimethylamino)phosphanyl]-n-methylmethanamine Chemical compound CN(C)P(N(C)C)N(C)C XVDBWWRIXBMVJV-UHFFFAOYSA-N 0.000 description 2
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 150000003014 phosphoric acid esters Chemical class 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- YKYONYBAUNKHLG-UHFFFAOYSA-N propyl acetate Chemical compound CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 2
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- QEQBMZQFDDDTPN-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy benzenecarboperoxoate Chemical compound CC(C)(C)OOOC(=O)C1=CC=CC=C1 QEQBMZQFDDDTPN-UHFFFAOYSA-N 0.000 description 1
- KDGNCLDCOVTOCS-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy propan-2-yl carbonate Chemical compound CC(C)OC(=O)OOC(C)(C)C KDGNCLDCOVTOCS-UHFFFAOYSA-N 0.000 description 1
- 125000004191 (C1-C6) alkoxy group Chemical group 0.000 description 1
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 description 1
- ACRQLFSHISNWRY-UHFFFAOYSA-N 1,2,3,4,5-pentabromo-6-phenoxybenzene Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=CC=CC=C1 ACRQLFSHISNWRY-UHFFFAOYSA-N 0.000 description 1
- ORYGKUIDIMIRNN-UHFFFAOYSA-N 1,2,3,4-tetrabromo-5-(2,3,4,5-tetrabromophenoxy)benzene Chemical compound BrC1=C(Br)C(Br)=CC(OC=2C(=C(Br)C(Br)=C(Br)C=2)Br)=C1Br ORYGKUIDIMIRNN-UHFFFAOYSA-N 0.000 description 1
- DEIGXXQKDWULML-UHFFFAOYSA-N 1,2,5,6,9,10-hexabromocyclododecane Chemical compound BrC1CCC(Br)C(Br)CCC(Br)C(Br)CCC1Br DEIGXXQKDWULML-UHFFFAOYSA-N 0.000 description 1
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- QIRWHAICIJBOJH-UHFFFAOYSA-N 2,5-dimethyl-2,5-bis[(2-methylpropan-2-yl)oxyperoxy]hexane Chemical compound CC(C)(C)OOOC(C)(C)CCC(C)(C)OOOC(C)(C)C QIRWHAICIJBOJH-UHFFFAOYSA-N 0.000 description 1
- 150000003923 2,5-pyrrolediones Chemical class 0.000 description 1
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 description 1
- 125000000041 C6-C10 aryl group Chemical group 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
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- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
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- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
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- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
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- 238000004132 cross linking Methods 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 description 1
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- 239000003365 glass fiber Substances 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
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- 239000003049 inorganic solvent Substances 0.000 description 1
- 229910001867 inorganic solvent Inorganic materials 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- GKTNLYAAZKKMTQ-UHFFFAOYSA-N n-[bis(dimethylamino)phosphinimyl]-n-methylmethanamine Chemical class CN(C)P(=N)(N(C)C)N(C)C GKTNLYAAZKKMTQ-UHFFFAOYSA-N 0.000 description 1
- 125000006606 n-butoxy group Chemical group 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000003506 n-propoxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
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- 239000004843 novolac epoxy resin Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 description 1
- XFZRQAZGUOTJCS-UHFFFAOYSA-N phosphoric acid;1,3,5-triazine-2,4,6-triamine Chemical compound OP(O)(O)=O.NC1=NC(N)=NC(N)=N1 XFZRQAZGUOTJCS-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002587 poly(1,3-butadiene) polymer Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- TXDNPSYEJHXKMK-UHFFFAOYSA-N sulfanylsilane Chemical compound S[SiH3] TXDNPSYEJHXKMK-UHFFFAOYSA-N 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 125000005369 trialkoxysilyl group Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L15/00—Compositions of rubber derivatives
-
- 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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F236/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F236/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
- C08F236/06—Butadiene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
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Description
例えば、特許文献9には、一方の末端のみに下記式(1)で示される官能基を有し、1分子当たりの平均官能基数が0.8~1である直鎖状変性ジエン系重合体が記載されている。該変性ジエン系重合体をゴム組成物に含ませることにより、その組成物から得られる架橋物中のフィラーの分散状態を物性向上のために理想的な状態にできるようである。
(1)式(I)
(2)重量平均分子量(Mw)が、1,000~100,000である(1)に記載の末端変性ポリブタジエン。
(3)分子量分布(Mw/Mn)が、1.00~3.00である(1)または(2)に記載の末端変性ポリブタジエン。
(4)(1)~(3)いずれかに記載の末端変性ポリブタジエンを含有する金属張積層板用樹脂組成物。
(5)さらに、有機過酸化物を含有する(4)に記載の金属張積層板用樹脂組成物。
(6)末端変性ポリブタジエン100重量部に対して、有機過酸化物を1~5重量部含有する(5)に記載の金属張積層板用樹脂組成物。
(7)(4)~(6)いずれかに記載の金属張積層板用樹脂組成物が基材に含浸されたプリプレグ。
(8)(7)に記載のプリプレグと金属箔とを積層して成形することにより製造される金属張積層板。
本発明の末端変性ポリブタジエンは、ポリブタジエンの両末端に下記式(III)で表される構造を有する。本発明において「ポリブタジエン」とは、ブタジエンを重合した高分子化合物である。本発明において「ポリブタジエン」は、下記式(I)で表される繰り返し単位(以下、「1,2-結合」と記載する場合がある)と、下記式(II)(以下、「1,4-結合」と記載する場合がある)で表される繰り返し単位を有する。本発明の末端変性ポリブタジエンを構成する「ポリブタジエン」は、全繰り返し単位中、式(I)で表される繰り返し単位の割合が70~99モル%であるのが好ましく、75~99モル%であるのがより好ましく、80~99モル%であるのがさらに好ましい。「ポリブタジエン」は、式(I)で表される繰り返し単位および式(II)で表される繰り返し単位以外の繰り返し単位として、式(I)で表される繰り返し単位を水素添加した繰り返し単位や、式(II)で表される繰り返し単位を水素添加した繰り返し単位を含んでいてもよい。
アルキレン基としては、メチレン、エチレン、プロパン-1,3-ジイル、プロパン-1,2-ジイル、ブタン-1,4-ジイル、ブタン-2,3-ジイル、ペンタン-1,5-ジイル、ペンタン-1,4-ジイル、2-メチルブタン-1,4-ジイル、ヘキサン-1,6-ジイル、オクタン-1,8-ジイル、デカン-1,10-ジイルなどを挙げることができる。これらのうち、C1~10のアルキレン基が好ましい。
アルキレン-O-アルキレン基とは、アルキレン基とアルキレン基が-O-結合を介して結合している基を意味する。アルキレン-O-アルキレン基としては、エチレン-O-エチレン基、エチレン-O-プロパン-1,3-ジイル基などを挙げることができる。
次に、本発明の末端変性ポリブタジエンの製造方法について説明する。
両末端水酸基変性ポリブタジエン(1)と、イソシアネート化合物(2)を溶媒中で、あるいは無溶媒条件下で、反応させることにより本発明の末端変性ポリブタジエンを製造することができる。
反応温度は、通常0℃~100℃、好ましくは室温~80℃の範囲であり、反応は通常数分~数時間で完結する。
本発明の金属張積層板用樹脂組成物は、本発明の末端変性ポリブタジエンを含有する。
本発明の金属張積層板用樹脂組成物中の末端変性ポリブタジエンの含有量は、特に限定されないが、金属張積層板用樹脂組成物の全重量に対して、10~90重量%などを挙げることができる。
本発明の金属張積層板用樹脂組成物には、本発明の効果を損なわない範囲で適宜その他の添加剤を加えることができる。その他の添加剤としては、例えば、架橋剤、難燃剤、無機充填材、溶剤などを挙げることができる。
架橋剤を添加する場合、その添加量は特に限定されないが、本発明の末端変性ポリブタジエンに対して1~50重量%となる量を挙げることができる。
ハロゲン系難燃剤としては、ペンタブロモジフェニルエーテル、オクタブロモジフェニルエーテル、デカブロモジフェニルエーテル、テトラブロモビスフェノールA、ヘキサブロモシクロドデカンなどの臭素系難燃剤や、塩素化パラフィンなどの塩素系難燃剤などを挙げることができる。
リン系難燃剤としては、縮合リン酸エステル、環状リン酸エステル等のリン酸エステル、環状ホスファゼン化合物などのホスファゼン化合物、ジアルキルホスフィン酸アルミニウム塩などのホスフィン酸塩系難燃剤、リン酸メラミン、及びポリリン酸メラミンなどのメラミン系難燃剤などを挙げることができる。
難燃剤を添加する場合、その添加量は特に限定されないが、本発明の末端変性ポリブタジエンに対して1~20重量%となる量を挙げることができる。
無機充填材を添加する場合、その添加量は特に限定されないが、本発明の末端変性ポリブタジエンに対して、10~150重量%となる量を挙げることができる。
本発明の金属張積層板用樹脂組成物は、プリプレグを製造する際には、プリプレグを形成するための基材(繊維質基材)に含浸する目的でワニス状に調製して用いられることが多い。このような樹脂ワニスは、例えば、以下のようにして調製される。
得られたプリプレグを一枚または複数枚重ね、さらにその上下の両面又は片面に銅箔等の金属箔を重ね、これを加熱加圧成形して積層一体化することによって、両面金属箔張り又は片面金属箔張りの積層体を作製することができる。
加熱加圧条件は、製造する積層板の厚みやプリプレグの樹脂組成物の種類等により適宜設定することができる。例えば、温度を170~210℃、圧力を1.5~4.0MPa、時間を60~150分間とすることができる。
製造例1
200mLフラスコにNISSO-PB G-1000(水酸基価73.0mgKOH/g)を100g入れた。そこにG-1000の水酸基価のモル数に対して0.9倍モルとなるように3-イソシアナトプロピルトリメトキシシランを24.04g加えた。これを十分に撹拌しながら60℃まで加温し、12時間反応させることで末端変性ポリブタジエンAを得た。得られた末端変性ポリブタジエンAは数平均分子量(Mn)が3200で且つ分子量分布(Mw/Mn)が2.24であった。なお、重量平均分子量(Mw)および数平均分子量(Mn)は、テトラヒドロフランを溶媒とするゲルパーミエーションクロマトグラフィー(GPC)にて測定したデータを標準ポリスチレンの分子量に基づいて換算した値である。
200mLフラスコにNISSO-PB G-3000(水酸基価31.0mgKOH/g)を100g入れた。そこにG-3000の水酸基価のモル数に対して0.9倍モルとなるように3-イソシアナトプロピルトリメトキシシランを10.21g加えた。これを十分に撹拌しながら60℃まで加温し、12時間反応させることで末端変性ポリブタジエンBを得た。得られた末端変性ポリブタジエンBは数平均分子量(Mn)が6700で且つ分子量分布(Mw/Mn)が1.57であった。なお、重量平均分子量(Mw)および数平均分子量(Mn)は、テトラヒドロフランを溶媒とするゲルパーミエーションクロマトグラフィー(GPC)にて測定したデータを標準ポリスチレンの分子量に基づいて換算した値である。
遠藤剛編、高分子の合成(上)、第1版、講談社、2010を参考にラジカル開始剤を用いて両末端水酸基変性1,4-ポリブタジエンを合成した。合成した1,4-ポリブタジエンはMnが約5000、1,2-ビニル率が約20%、水酸基価が約48mgKOH/gであった。
200mLフラスコに上記で合成した1,4-ポリブタジエン(水酸基価48.0mg KOH/g)を100g入れた。そこに1,4-ポリブタジエンの水酸基価のモル数に対して0.9倍モルとなるように3-イソシアナトプロピルトリメトキシシランを15.81g加えた。これを十分に撹拌しながら60℃まで加温し、12時間反応させることで末端変性ポリブタジエンCを得た。得られた末端変性ポリブタジエンCは数平均分子量(Mn)が6000で且つ分子量分布(Mw/Mn)が2.10であった。なお、重量平均分子量(Mw)および数平均分子量(Mn)は、テトラヒドロフランを溶媒とするゲルパーミエーションクロマトグラフィー(GPC)にて測定したデータを標準ポリスチレンの分子量に基づいて換算した値である。
実施例1
表1に示す割合になるように末端変性ポリブタジエンA、溶剤、有機過酸化物を混合し、ワニスを得た。このワニスにガラスクロスを浸漬してガラスクロスに樹脂を含浸させた。その後ワニス含浸ガラスクロスを150℃で10分間乾燥させプリプレグを得た。このプリプレグの片面に厚さ18μmの銅箔の粗面を張り付けた。その後3MPaの加圧下で195℃、120分間加熱を行うことで金属張積層板を得た。
誘電率・誘電正接は樹脂単独で測定した。測定周波数5GHzにおける誘電率および誘電正接をプローブ法で測定した。結果を表2に示した。
JIS C 6481にしたがって測定した。金属張積層板について銅箔の90℃剥離試験を行うことにより、ピール強度を測定した。結果を表2に示した。
JIS C 6481にしたがって測定した。260℃のはんだ中に銅張積層板を2分間浸漬し、銅箔の剥がれを観察することによりはんだ耐熱性を評価した。剥がれがなかったものを「○」、剥がれが生じたものを「×」とした。結果を表2に示した。
樹脂成分を末端変性ポリブタジエンBとすることを除いて、実施例1と同様に金属張積層板の作製、および、誘電率・誘電正接の測定、ピール強度、はんだ耐熱性の試験を行った。結果を表2に示した。
樹脂成分を末端変性ポリブタジエンCとすることを除いて、実施例1と同様に、金属張積層板の作製および誘電率・誘電正接の測定、ピール強度、はんだ耐熱性の試験を行った。結果を表2に示した。
樹脂成分を末端に官能基を持たないNISSO-PB B-1000とすることを除いて、実施例1と同様に、金属張積層板の作製、および、誘電率・誘電正接の測定、ピール強度、はんだ耐熱性の試験を行った。結果を表2に示した。
樹脂成分を末端に官能基を持たないNISSO-PB B-3000とすることを除いて、実施例1と同様に、金属張積層板の作製、および、誘電率・誘電正接の測定、ピール強度、はんだ耐熱性の試験を行った。結果を表2に示した。
樹脂成分を製造例3で合成した1,4-ポリブタジエンとすることを除いて、実施例1と同様に、金属張積層板の作製、および、誘電率・誘電正接の測定、ピール強度、はんだ耐熱性の試験を行った。結果を表2に示した。
Claims (8)
- 重量平均分子量(Mw)が、1,000~100,000である請求項1に記載の末端変性ポリブタジエン。
- 分子量分布(Mw/Mn)が、1.00~3.00である請求項1または2に記載の末端変性ポリブタジエン。
- 請求項1~3いずれか1項に記載の末端変性ポリブタジエンを含有する金属張積層板用樹脂組成物。
- さらに、有機過酸化物を含有する請求項4に記載の金属張積層板用樹脂組成物。
- 末端変性ポリブタジエン100重量部に対して、有機過酸化物を1~5重量部含有する請求項5に記載の金属張積層板用樹脂組成物。
- 請求項4~6いずれか1項に記載の金属張積層板用樹脂組成物が基材に含浸されたプリプレグ。
- 請求項7に記載のプリプレグと金属箔とを積層して成形することにより製造される金属張積層板。
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