ADHESIVE RESIN COMPOSITION

To provide an adhesive resin composition capable of curing a polyester resin alone even containing substantially no curing agents, and excellent in solder heat resistance, and adhesiveness to a variety of substrates.SOLUTION: An adhesive resin composition includes a polyester resin (A), and satisfie...

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Bibliographische Detailangaben
Hauptverfasser: MIKAMI TADAHIKO, SAKAMOTO KOICHI, SAEGUSA HIROYUKI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide an adhesive resin composition capable of curing a polyester resin alone even containing substantially no curing agents, and excellent in solder heat resistance, and adhesiveness to a variety of substrates.SOLUTION: An adhesive resin composition includes a polyester resin (A), and satisfies the following requirements (i)-(iv). (i) The acid value of the polyester resin (A) is 100 eq/ton or higher. (ii) An unsaturated dicarboxylic acid (d) is contained as a polycarboxylic acid constituent constituting the polyester resin (A). (iii) As a polyol constituent constituting the polyester resin (A), a diol (a) having two primary hydroxyl groups and no alicyclic structures is included, and further one or both of a diol (b) having an alicyclic structure and a diol (c) having one primary hydroxyl group and one secondary hydroxyl group, and no alicyclic structures is (are) included. (iv) The polyester resin (A) has branch structure.SELECTED DRAWING: None 【課題】硬化剤を実質的に含有せずともポリエステル樹脂単独で硬化することができ、ハンダ耐熱性、各種基材への接着性に優れた接着剤樹脂組成物を提供する。【解決手段】ポリエステル樹脂(A)を含み、次の(i)~(iv)の要件を満たすことを特徴とする接着剤樹脂組成物。(i)ポリエステル樹脂(A)の酸価が100eq/ton以上である。(ii)ポリエステル樹脂(A)を構成するポリカルボン酸成分として、不飽和ジカルボン酸(d)を含む。(iii)ポリエステル樹脂(A)を構成するポリオール成分として、1級水酸基を2個有しかつ脂環構造を有さないジオール(a)を含み、さらに、脂環構造を有するジオール(b)および1個の1級水酸基と1個の2級水酸基を有しかつ脂環構造を有さないジオール(c)のいずれかまたは両方を含む。(iv)ポリエステル樹脂(A)が分岐構造を有する。【選択図】なし