Abstract:
Underfill compositions comprise a quinolinol or a quinolinol derivative as a fluxing agent, as an accelerating agent, or as both. The compositions are sufficiently acidic to perform well as fluxes, but not so acidic as to cause premature gelation or corrosion. The compositions also demonstrate higher Tg values than similar compositions that do not contain quinolinol or a quinolinol derivative.
Abstract:
Difunctional oxazoline resins, which may be produced in a convenient one-step reaction from an arylalkylene dinitrile by reaction with an amino alcohol, are used in compositions with an additional curable compound or resin containing one or more carbon to carbon double bonds. The composition can be cured to a thermoset material, the curing mechanism occurring by the zwitterion polymerization of the bisoxazoline resin with the resin containing the one or more carbon to carbon double bonds. The reaction occurs without the need for curing initiators.(I).