摘要:
where A is CH2 or benzyl, R is C1-10 alkyl, R′ is H or C1-10 alkyl, or R and R′ taken together may form a four to seven membered ring fused to the benzene ring, R″ is optional, but when R″ is present, R″ is halogen, alkyl, alkenyl, cycloalkyl, hydroxyalkyl, hydroxyalkenyl, alkoxy, amino, alkylene- or alkenylene-ether, alkylene (meth)acrylate, carbonyl, carboxyl, nitroso, sulfonate, hydroxyl or haloalkyl, and EWG is as shown, an electron withdrawing group, such as nitro, nitrile, carboxylate or trihaloalkyl.
摘要:
where R and R″ are each independently C1-10 alkyl, and R′ is H or C1-10 alkyl or R and R′ together may form a four to seven membered ring fused to the benzene ring, and where R′″ is optional, but when R′″ is present, R′″ is halogen, alkyl, alkenyl, cycloalkyl, hydroxyalkyl, hydroxyalkenyl, alkoxy, amino, alkylene- or alkenylene-ether, alkylene (meth)acrylate, carbonyl, carboxyl, nitroso, sulfonate, hydroxyl or haloalkyl.
摘要:
Thermosetting resin compositions are provided that are useful for mounting onto a circuit board semiconductor devices, such as chip size or chip scale packages (“CSPs”), ball grid arrays (“BGAs”), land grid arrays (“LGAs”) and the like (collectively, “subcomponents”), or semiconductor chips. Reaction products of the compositions are controllably reworkable when subjected to appropriate conditions.
摘要:
Phenylhydrazine/anhydride adducts and anaerobic curable compositions using these adducts are provided. The compositions are particularly useful as adhesives and sealants.
摘要:
Thermosetting resin compositions are provided that are useful for mounting onto a circuit board semiconductor devices, such as chip size or chip scale packages (“CSPs”), ball grid arrays (“BGAs”), land grid arrays (“LGAs”) and the like (collectively, “subcomponents”), or semiconductor chips. Reaction products of the compositions are controllably reworkable when subjected to appropriate conditions.