JP7519587B2 - 樹脂組成物、プリプレグ、樹脂付きフィルム、樹脂付き金属箔、金属張積層板、及び配線板 - Google Patents
樹脂組成物、プリプレグ、樹脂付きフィルム、樹脂付き金属箔、金属張積層板、及び配線板 Download PDFInfo
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- JP7519587B2 JP7519587B2 JP2021533093A JP2021533093A JP7519587B2 JP 7519587 B2 JP7519587 B2 JP 7519587B2 JP 2021533093 A JP2021533093 A JP 2021533093A JP 2021533093 A JP2021533093 A JP 2021533093A JP 7519587 B2 JP7519587 B2 JP 7519587B2
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Description
本実施形態に係る樹脂組成物は、分子中にエポキシ基を有するポリブタジエン化合物と、下記式(1)で表される基及び下記式(2)で表される基の少なくとも一方を分子中に有するポリフェニレンエーテル化合物と、スチレン系ブロック共重合体と、硬化剤とを含有する。
前記ポリブタジエン化合物は、分子中にエポキシ基を有するポリブタジエン化合物であれば、特に限定されない。前記ポリブタジエン化合物としては、例えば、エポキシ化ポリブタジエン、すなわち、ポリブタジエンに含まれる炭素-炭素二重結合の少なくとも一部がエポキシ化されることによって、分子中にエポキシ基が導入された化合物、及びポリブタジエンの両末端がグリシジルエーテル化された化合物等が挙げられる。なお、前記エポキシ化は、例えば、ポリブタジエン(エポキシ化していないポリブタジエン)に含まれる炭素-炭素二重結合に対して、エポキシ化剤によって酸素1原子を付加させて3員環のエポキシ基にすること等によって行われる。また、ポリブタジエンの両末端がグリシジルエーテル化された化合物は、両末端が水酸基であるポリブタジエンにエピクロルヒドリンを付加させることによって得られる。
前記ポリフェニレンエーテル化合物は、前記式(1)で表される基及び前記式(2)で表される基の少なくとも一方を分子中に有するポリフェニレンエーテル化合物であれば、特に限定されない。前記ポリフェニレンエーテル化合物としては、具体的には、前記式(1)で表される基及び前記式(2)で表される基の少なくとも一方を分子末端に有するポリフェニレンエーテル化合物等が挙げられる。前記ポリフェニレンエーテル化合物としては、より具体的には、前記式(1)で表される基及び前記式(2)で表される基の少なくとも一方により末端変性された変性ポリフェニレンエーテル化合物等が挙げられる。
前記スチレン系ブロック共重合体は、金属張積層板及び配線板等に備えられる絶縁層を形成するために用いられる樹脂組成物等に含まれる樹脂として用いることができるスチレン系ブロック共重合体であれば、特に限定されない。
前記硬化剤は、前記ポリフェニレンエーテル化合物と反応して前記ポリフェニレンエーテル化合物を含む樹脂組成物を硬化させることができる硬化剤である。また、前記硬化剤は、前記ポリフェニレンエーテル化合物を含む樹脂組成物を硬化させることができる硬化剤であれば、特に限定されない。前記硬化剤としては、例えば、スチレン、スチレン誘導体、分子中にアクリロイル基を有する化合物、分子中にメタクリロイル基を有する化合物、分子中にビニル基を有する化合物、分子中にアリル基を有する化合物、分子中にアセナフチレン構造を有する化合物、分子中にマレイミド基を有する化合物、及び分子中にイソシアヌレート基を有するイソシアヌレート化合物等が挙げられる。
前記ポリブタジエン化合物の含有量は、前記ポリブタジエン化合物、前記ポリフェニレンエーテル化合物、及び前記硬化剤の合計100質量部に対して、5~40質量部であることが好ましく、5~25質量部であることが好ましい。また、前記ポリブタジエン化合物の含有量は、前記ポリブタジエン化合物、前記ポリフェニレンエーテル化合物、前記スチレン系ブロック共重合体、及び前記硬化剤の合計100質量部に対して、3~20質量部であることが好ましく、5~17.5質量部であることが好ましい。また、前記ポリフェニレンエーテル化合物の含有量は、前記ポリブタジエン化合物、前記ポリフェニレンエーテル化合物、前記スチレン系ブロック共重合体、及び前記硬化剤の合計100質量部に対して、10~70質量部であることが好ましく、20~50質量部であることが好ましい。また、前記スチレン系ブロック共重合体の含有量は、前記ポリブタジエン化合物、前記ポリフェニレンエーテル化合物、前記スチレン系ブロック共重合体、及び前記硬化剤の合計100質量部に対して、5~60質量部であることが好ましく、10~50質量部であることが好ましい。また、前記硬化剤の含有量は、前記ポリブタジエン化合物、前記ポリフェニレンエーテル化合物、前記スチレン系ブロック共重合体、及び前記硬化剤の合計100質量部に対して、3~30質量部であることが好ましく、5~20質量部であることが好ましい。前記ポリブタジエン化合物、前記ポリフェニレンエーテル化合物、前記スチレン系ブロック共重合体、及び前記硬化剤の各含有量が、上記範囲内であると、硬化させると、優れた低誘電特性を維持しつつ、金属箔との接着性のより高い硬化物となる樹脂組成物が得られる。
本実施形態に係る樹脂組成物は、本発明の効果を損なわない範囲で、必要に応じて、前記ポリブタジエン化合物、前記ポリフェニレンエーテル化合物、前記スチレン系ブロック共重合体、及び前記硬化剤以外の成分(その他の成分)を含有してもよい。本実施形態に係る樹脂組成物に含有されるその他の成分としては、例えば、シランカップリング剤、難燃剤、開始剤、硬化促進剤、消泡剤、酸化防止剤、重合禁止剤、重合遅延剤、分散剤、レベリング剤、熱安定剤、帯電防止剤、紫外線吸収剤、染料や顔料、滑剤、及び充填材等の添加剤をさらに含んでもよい。また、前記樹脂組成物には、前記ポリフェニレンエーテル化合物以外にも、エポキシ樹脂、不飽和ポリエステル樹脂、及び熱硬化性ポリイミド樹脂等の熱硬化性樹脂を含有してもよい。
前記樹脂組成物を製造する方法としては、特に限定されず、例えば、前記ポリブタジエン化合物、前記ポリフェニレンエーテル化合物、及び前記硬化剤を、所定の含有量となるように混合する方法等が挙げられる。具体的には、有機溶媒を含むワニス状の組成物を得る場合は、後述する方法等が挙げられる。
図1は、本発明の実施形態に係るプリプレグ1の一例を示す概略断面図である。
図2は、本発明の実施形態に係る金属張積層板11の一例を示す概略断面図である。
図3は、本発明の実施形態に係る配線板21の一例を示す概略断面図である。
図4は、本実施の形態に係る樹脂付き金属箔31の一例を示す概略断面図である。
図5は、本実施の形態に係る樹脂付きフィルム41の一例を示す概略断面図である。
本実施例において、樹脂組成物を調製する際に用いる各成分について説明する。
エポキシ基含有ポリブタジエン1:分子中にエポキシ基を有するポリブタジエン化合物(日本曹達株式会社製のJP-100、オキシラン濃度:7.7質量%)
エポキシ基含有ポリブタジエン2:分子中にエポキシ基を有するポリブタジエン化合物(株式会社ダイセル製のPB3600、オキシラン濃度:8.2質量%)
エポキシ基含有ポリブタジエン3:分子中にエポキシ基を有するポリブタジエン化合物(Cray Valley社製のRicon657、オキシラン濃度:6.7質量%)
(ポリフェニレンエーテル化合物:PPE)
変性PPE1:末端にメタクリロイル基を有するポリフェニレンエーテル化合物(ポリフェニレンエーテルの末端水酸基をメタクリロイル基で変性した変性ポリフェニレンエーテル、上記式(12)で表され、式(12)中のYがジメチルメチレン基(式(9)で表され、式(9)中のR33及びR34がメチル基である基)である変性ポリフェニレンエーテル化合物、SABICイノベーティブプラスチックス社製のSA9000、重量平均分子量Mw2000、末端官能基数2個)
変性PPE2:末端にビニルベンジル基(エテニルベンジル基)を有するポリフェニレンエーテル化合物(ポリフェニレンエーテルとクロロメチルスチレンとを反応させて得られた変性ポリフェニレンエーテル)である。
ここで、εは、吸光係数を示し、4700L/mol・cmである。また、OPLは、セル光路長であり、1cmである。
TR2827:スチレンブタジエンスチレン共重合体(JSR株式会社製のTR2827)
Septon8007:水添スチレン(エチレン/ブチレン)スチレン共重合体(株式会社クラレ製のSepton8007)
SeptonV9827:水添メチルスチレン(エチレン/ブチレン)メチルスチレン共重合体(株式会社クラレ製のSeptonV9827)
(硬化剤:アリル化合物)
TAIC:トリアリルイソシアヌレート(日本化成株式会社製のTAIC)
TMPT:トリメチロールプロパントリメタクリレート(新中村化学工業株式会社製のTMPT)
(その他)
ポリブタジエン:ポリブタジエン(日本曹達株式会社製のB-1000、オキシラン濃度:0質量%)
エポキシ樹脂:ビスフェノールA型エポキシ樹脂(DIC株式会社製の830S)
開始剤:α,α’-ジ(t-ブチルパーオキシ)ジイソプロピルベンゼン(日油株式会社製のパーブチルP(PBP))
硬化促進剤:2-エチル-4-メチルイミダゾール(四国化成工業株式会社製の2E4MZ)
充填材:ビニルシラン処理されたシリカ(株式会社アドマテックス製のSV-C2、平均粒径:1.5μm)
まず、充填材以外の各成分を表1に記載の組成(質量部)で、固形分濃度が50質量%となるように、トルエンに添加し、混合させた。その混合物を60分間攪拌した。その後、得られた液体に充填材を添加し、ビーズミルで充填材を分散させた。そうすることによって、ワニス状の樹脂組成物(ワニス)が得られた。
10GHzにおける評価基板(樹脂付き金属箔の硬化物)の銅箔を除去した積層板の比誘電率及び誘電正接を、空洞共振器摂動法で測定した。具体的には、ネットワークアナライザ(アジレント・テクノロジー株式会社製のN5230A)を用い、10GHzにおける評価基板の銅箔を除去した積層板の比誘電率及び誘電正接を測定した。
評価基板(樹脂付き金属箔の硬化物)から銅箔を引き剥がし、そのときのピール強度(銅箔ピール強度)を、JIS C 6481に準拠して測定した。具体的には、評価基板から銅箔を引っ張り試験機により50mm/分の速度で引き剥がし、そのときのピール強度(N/mm)を測定した。
セイコーインスツルメンツ株式会社製の粘弾性スペクトロメータ「DMS6100」を用いて、評価基板(樹脂付き金属箔の硬化物)の銅箔を除去した積層板のTgを測定した。このとき、引張りモジュールで周波数を10Hzとして動的粘弾性測定(DMA)を行い、昇温速度5℃/分の条件で室温から320℃まで昇温した際のtanδが極大を示す温度をTgとした。
Claims (11)
- 分子中にエポキシ基を有するポリブタジエン化合物と、
下記式(1)で表される基及び下記式(2)で表される基の少なくとも一方を分子中に有するポリフェニレンエーテル化合物と、
スチレン系ブロック共重合体と、
前記ポリフェニレンエーテル化合物と反応する硬化剤とを含有し、
前記硬化剤が、分子中に2個以上のアリル基を有するアリルイソシアヌレート化合物を含む樹脂組成物。
(式(1)中、pは、0~10を示し、Zは、アリーレン基を示し、R1~R3は、それぞれ独立して、水素原子又はアルキル基を示す。)
(式(2)中、R4は、水素原子又はアルキル基を示す。) - 前記ポリブタジエン化合物の含有量は、前記ポリブタジエン化合物、前記ポリフェニレンエーテル化合物、及び前記硬化剤の合計100質量部に対して、5~40質量部である請求項1に記載の樹脂組成物。
- 前記ポリブタジエン化合物の含有量は、前記ポリブタジエン化合物、前記ポリフェニレンエーテル化合物、前記スチレン系ブロック共重合体、及び前記硬化剤の合計100質量部に対して、3~20質量部である請求項1又は請求項2に記載の樹脂組成物。
- 前記ポリブタジエン化合物は、オキシラン酸素の濃度が1~10質量%である請求項1~3のいずれか1項に記載の樹脂組成物。
- 前記スチレン系ブロック共重合体が、メチルスチレン(エチレン/ブチレン)メチルスチレン共重合体、メチルスチレン(エチレン-エチレン/プロピレン)メチルスチレン共重合体、スチレンイソプレン共重合体、スチレンイソプレンスチレン共重合体、スチレン(エチレン/ブチレン)スチレン共重合体、スチレン(エチレン-エチレン/プロピレン)スチレン共重合体、スチレンブタジエンスチレン共重合体、スチレン(ブタジエン/ブチレン)スチレン共重合体、スチレンイソブチレンスチレン共重合体、及びこれらの水添物からなる群から選ばれる少なくとも1種を含む請求項1~4のいずれか1項に記載の樹脂組成物。
- 前記ポリフェニレンエーテル化合物が、前記式(2)で表される基を分子中に有するポリフェニレンエーテル化合物を含む請求項1~5のいずれか1項に記載の樹脂組成物。
- 請求項1~6のいずれか1項に記載の樹脂組成物又は前記樹脂組成物の半硬化物と、繊維質基材とを備えるプリプレグ。
- 請求項1~6のいずれか1項に記載の樹脂組成物又は前記樹脂組成物の半硬化物を含む樹脂層と、支持フィルムとを備える樹脂付きフィルム。
- 請求項1~6のいずれか1項に記載の樹脂組成物又は前記樹脂組成物の半硬化物を含む樹脂層と、金属箔とを備える樹脂付き金属箔。
- 請求項1~6のいずれか1項に記載の樹脂組成物の硬化物又は請求項7に記載のプリプレグの硬化物を含む絶縁層と、金属箔とを備える金属張積層板。
- 請求項1~6のいずれか1項に記載の樹脂組成物の硬化物又は請求項7に記載のプリプレグの硬化物を含む絶縁層と、配線とを備える配線板。
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| EP4079784A1 (en) * | 2021-04-20 | 2022-10-26 | SHPP Global Technologies B.V. | Phenylene ether oligomer and curable thermosetting composition comprising the phenylene ether oligomer |
| TW202319467A (zh) * | 2021-11-03 | 2023-05-16 | 台燿科技股份有限公司 | 樹脂組合物及其應用 |
| CN118103421A (zh) | 2021-11-19 | 2024-05-28 | 松下知识产权经营株式会社 | 树脂组合物、具有树脂的膜、具有树脂的金属箔、覆金属层压体和印刷线路板 |
| KR20250158018A (ko) * | 2023-03-06 | 2025-11-05 | 나믹스 가부시끼가이샤 | 수지 조성물, 그리고 이것을 사용한 층간 절연용의 접착 필름, 적층 기판, 전자 부품 및 반도체 장치 |
| WO2025070328A1 (ja) * | 2023-09-29 | 2025-04-03 | パナソニックIpマネジメント株式会社 | 樹脂付き金属箔、金属張積層板、及び配線板 |
| WO2026062844A1 (ja) * | 2024-09-19 | 2026-03-26 | 株式会社レゾナック | 樹脂組成物、シート状材料、プリント配線板、及び半導体装置 |
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| US12098257B2 (en) | 2024-09-24 |
| KR20220038378A (ko) | 2022-03-28 |
| CN114207021A (zh) | 2022-03-18 |
| KR102931421B1 (ko) | 2026-02-25 |
| CN114207021B (zh) | 2024-06-11 |
| JPWO2021010431A1 (ja) | 2021-01-21 |
| US20220259424A1 (en) | 2022-08-18 |
| WO2021010431A1 (ja) | 2021-01-21 |
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