KR102618230B1 - 개선된 접착력을 갖는 일액형 열경화성 에폭시 접착제 - Google Patents
개선된 접착력을 갖는 일액형 열경화성 에폭시 접착제 Download PDFInfo
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Abstract
a) 분자당 평균 1개 초과의 에폭사이드기를 갖는 적어도 1종의 에폭시 수지 A;
b) 에폭시 수지에 대한 적어도 1종의 잠재성 경질화제; 및
c) 치환되거나 비치환된 석신산 및 치환되거나 비치환된 프탈산으로부터 선택된 적어도 1종의 카복실산을 포함하되,
상기 에폭시 수지 접착제가 100g의 에폭시 수지 접착제당 1.7 내지 15 m㏖의 적어도 1종의 카복실산을 함유하고, 상기 에폭시 수지 접착제가 25℃에서 10000 Pas 초과의 점도를 갖는, 일액형 열경화성 에폭시 수지 접착제에 관한 것이다.
상기 에폭시 수지 접착제는 특히, 특수한 금속 기판, 예컨대 강철 및 마그네슘으로의 효과적인 접착에 대하여 우수하다.
Description
Claims (13)
- 일액형(one-component) 열경화성 에폭시 수지 접착제로서,
a) 분자당 평균 1개 초과의 에폭사이드기를 갖는 적어도 1종의 에폭시 수지 A;
b) 에폭시 수지에 대한 적어도 1종의 잠재성 경질화제(hardener); 및
c) 치환되거나 비치환된 석신산 및 치환되거나 비치환된 프탈산으로부터 선택된 적어도 1종의 카복실산을 포함하되,
상기 에폭시 수지 접착제가 100g의 에폭시 수지 접착제당 1.7 내지 15 m㏖의 적어도 1종의 카복실산을 함유하고, 상기 에폭시 수지 접착제가 25℃에서 10000 Pas 초과의 점도를 가지며, 상기 점도는 가열가능한 판(MCR 301, AntonPaar)(갭 1000㎛, 측정되는 판 직경: 25㎜(판/판), 5 Hz에서의 변형률 0.01, 온도: 25℃)을 갖는 레오미터에 의해 오실로그래프(oscillograph)로 측정되며,
적어도 1종의 인성 개량제 D를 추가로 포함하며, 상기 인성 개량제 D의 분율이 상기 일액형 열경화성 에폭시 수지 접착제의 총 중량을 기준으로 5 내지 30중량%인, 일액형 열경화성 에폭시 수지 접착제. - 청구항 1에 있어서, 상기 적어도 1종의 카복실산이 석신산 및 프탈산 무수물로부터 선택되는, 일액형 열경화성 에폭시 수지 접착제.
- 청구항 1 또는 2에 있어서, 상기 에폭시 수지 접착제가 100g의 에폭시 수지 접착제당 2 내지 13 m㏖, 2.5 내지 10.5 m㏖, 2.5 내지 8.5 m㏖, 또는 2.5 내지 6 m㏖의 적어도 1종의 카복실산을 함유하는, 일액형 열경화성 에폭시 수지 접착제.
- 청구항 1 또는 2에 있어서, 분자당 평균 하나 초과의 에폭사이드기를 갖는 상기 에폭시 수지 A의 분율이 상기 일액형 열경화성 에폭시 수지 접착제의 총 중량을 기준으로 25 내지 70중량%, 25 내지 60중량%, 30 내지 55중량% 또는 30 내지 50중량%인, 일액형 열경화성 에폭시 수지 접착제.
- 청구항 1 또는 2에 있어서, 상기 잠재성 경질화제가 디시안디아미드, 구아나민, 구아니딘, 아미노구아니딘, 및 이들의 유도체, 치환된 우레아, 이미다졸 및 아민 복합체로부터 선택되는, 일액형 열경화성 에폭시 수지 접착제.
- 청구항 1 또는 2에 있어서, 상기 인성 개량제 D의 분율이 상기 일액형 열경화성 에폭시 수지 접착제의 총 중량을 기준으로 7 내지 25중량%인, 일액형 열경화성 에폭시 수지 접착제.
- 청구항 1 또는 2에 있어서, 상기 에폭시 수지 접착제가 25℃에서 15,000 Pas 초과의 점도를 가지며, 상기 점도가 가열가능한 판(MCR 301, AntonPaar)(갭 1000㎛, 측정되는 판 직경: 25㎜(판/판), 5 Hz에서의 변형률 0.01, 온도: 25℃)을 갖는 레오미터에 의해 오실로그래프로 측정되는, 일액형 열경화성 에폭시 수지 접착제.
- 청구항 1 또는 2에 있어서, 적어도 1종의 물리적 또는 화학적 발포제를 추가로 포함하는, 일액형 열경화성 에폭시 수지 접착제.
- 열 안정한 기판을 접착제로 접합시키는 방법으로서,
i) 청구항 1 또는 2에 따른 열경화성 에폭시 수지 접착제를 열 안정한 기판 S1의 표면에 도포하는 단계;
ii) 상기 도포된 열경화성 에폭시 수지 접착제를 추가의 열 안정한 기판 S2의 표면과 접촉시키는 단계; 및
iii) 상기 열경화성 에폭시 수지 접착제를 100 내지 220℃의 온도로 가열시키는 단계를 포함하되,
상기 기판 S2가 상기 기판 S1과 동일한 재료로 또는 상이한 재료로 구성되는, 열 안정한 기판을 접착제로 접합시키는 방법. - 청구항 1 또는 2의 열경화성 에폭시 수지 접착제를 사용하는 단계를 포함하는, 금속성 구조물을 접착제로 접합시키거나 강화시키거나 또는 자동차 건조 또는 샌드위치 패널 건조에서 공동의 충전을 강화하는 방법.
- 일액형 열경화성 에폭시 수지 접착제를 170℃에서 20 min 동안 또는 205℃에서 40 min 동안 경화시키는 경우에 인장 전단 강도를 ASTM D1002-10으로 개선시키는 방법으로서, 상기 일액형 열경화성 에폭시 수지 접착제로서 치환되거나 비치환된 석신산 및 치환되거나 비치환된 프탈산으로부터 선택된 적어도 1종의 카복실산을 포함하는 청구항 1 또는 2의 일액형 열경화성 에폭시 수지 접착제를 사용하는 단계를 포함하는, 방법.
- 청구항 1 또는 2에 따른 열경화성 에폭시 수지 접착제를 가열시켜서 얻은, 구조용 발포체.
- 경화된 접착제로 접합된 조립체를 포함하는 물품으로서,
상기 접착제로 접합된 조립체가 청구항 9에 따른 방법에 의해 얻어질 수 있는, 물품.
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JPS5850672B2 (ja) * | 1978-05-17 | 1983-11-11 | 株式会社日立製作所 | 金属−ポリアルキルキレンテレフタレ−ト間用非水型接着剤 |
JPH0737599B2 (ja) * | 1986-04-24 | 1995-04-26 | 日産自動車株式会社 | エポキシ樹脂系熱硬化性接着剤 |
JPH02255883A (ja) * | 1988-09-21 | 1990-10-16 | Nitto Denko Corp | スポット溶接可能なシート状接着剤 |
US6387470B1 (en) | 1998-11-05 | 2002-05-14 | Sika Corporation | Sound deadening and structural reinforcement compositions and methods of using the same |
JP3953234B2 (ja) * | 1999-06-30 | 2007-08-08 | 三井化学株式会社 | フレキシブルプリント配線板用接着剤組成物 |
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DE102009027826A1 (de) * | 2009-04-29 | 2010-11-04 | Evonik Degussa Gmbh | Katalyse von Epoxidharzformulierungen |
JP4893836B2 (ja) * | 2010-01-29 | 2012-03-07 | オムロン株式会社 | 一液性エポキシ樹脂組成物およびその利用 |
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US9425120B2 (en) * | 2012-02-24 | 2016-08-23 | Hitachi Chemical Company, Ltd | Semiconductor device and production method therefor |
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