| 摘要 |
A resin composition including from about 1 to about 100 weight percent of a thermoplastic oxazolidone ring-containing compound having a molecular weight of at least 5000, which is the reaction product of:a) from about 20 to about 43 weight percent, based on the polyepoxide and polyisocyanate reactants, of a polyisocyanate having an isocyanate-functionality of from about 1.8 to about 2.2;b) from about 80 to about 57 weight percent, based on the polyepoxide and polyisocyanate reactants, of a polyepoxide having an epoxide functionality of from about 1.8 to about 2.2; and optionally,c) a chain extender.The resin composition is used as an adhesive to adhere a copper foil to a prepreg or a laminate, with improved peel strength and Tg.
|
