Resin composition
AssigneeKaneka Corporation
InventorsKanji Shimo-Ohsako, Takashi Itoh, Masaru Nishinaka, Shigeru Tanaka, Mutsuaki Murakami
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Abstract
The present invention provides a resin composition comprising a polyimide containing particular dianhydride and diamine, and an epoxy resin. The resin composition can be bonded at a relatively low temperature, has excellent heat resistance, adhesion property, soldering heat resistance and retaining ratio of peeling strength after PCT. By forming a circuit using the polyimide resin sheet or the polyimide resin sheet with metal foil, which comprises the resin composition, according to the semi-additive method, a printed wiring board having a good wiring shape, firm adhesion of circuit and high insulating resistance in the microcircuit space can be obtained.
Claims8
A resin composition comprising:
- a polyimide resin and a thermosetting resin except for said polyimide resin, said polymide resin being represented by the following formula (1):
- wherein each of m and n is an integer, m≧0, n≧1, and m+n being at least 1;
- V represents a divalent group selected from the group consisting of —O—, —O-T-O— and —C(═O)—O-T-O(C═O)—;
- T represents a divalent organic group;
- Y represents an independent divalent organic group selected from the group consisting of —C(═O)—, —SO2—, —O—, —S—, —(CH2)b—, —NHCO—, —C(CH3)2—, —C(CF3)2—, —C(═O)O— and a single bond;
- each of a, b and c is independently an integer of at least 0 to at most 5;
- X independently represents one or at least two kinds of functional group selected from the group consisting of —OH, —COOH, —OCN and —CN;
- and
- d is an integer of 1 to 4.
A resin composition for adhesive, comprising,
- (A) a polyimide resin obtained by allowing an acid dianhydride component to react with a diamine component and
- (B) a thermosetting resin except for polumide resin,
- said acid dianhydride component containing an acid dianhydride represented by formula (2):
- wherein V represents a divalent group selected from the group consisting of —O—, —O-T-O— and —C(═O)—O-T-O(C═O)—, and T represents a divalent organic group;
- and
- said diamine component containing diamine represented by the following formula (4):
- wherein Z represents an independent divalent organic group selected from the group consisting of—C(═O)—, —SO2—, —O—, —S—, —(CH2)b—, —NHCO—, —C(CH3)2—, —C(CF3)2—, —C(═O)O— and a single bond;
- each of b and c is independently an integer of at least 0 to at most 5;
- X independently represents one or at least two kinds of functional group selected from the group consisting of —OH, —COOH, —OCN and —CN;
- e is an integer of 1 to 4.
Dependencies are inferred from the claim text.