摘要:
A thermosetting resin composition is prepared by mixing(A) a phenol novolak resin having hydroxy groups and allyl-etherified hydroxy groups,(B) a polymaleimide compound having two or more maleimide groups in the molecule, and(C) at least one silicone resin having the following formula (I); ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, are methyl or phenyl; R.sub.3 and R.sub.4, which may be the same or different, are methyl, phenyl, hydrogen or a group having an amino group or an epoxy group but at least one of R.sub.3 and R.sub.4 is hydrogen or a group having an amino group or an epoxy group; and l and m, which may be the same or different, are a number of 0-400. The thermosetting resin composition of the present invention can be suitably used for encapsulating electric devices, for example, and gives, by curing, a cured resin product of high quality.
摘要:
The present invention provides polyhydric phenols which are starting materials for glycidyl ether compounds which can provide cured products having low moisture absorption, high heat resistance and improved crack resistance and can be used for encapsulating semiconductor devices. The polyhydric phenols are represented by the following formula: ##STR1## wherein R.sup.1 independently represents a halogen atom, an alkyl or cycloalkyl group of 1-9 carbon atoms, an alkoxy group of 4 or less carbon atoms or an aryl group and R.sup.1 may be identical or different when l is 2 or more, R.sup.2 independently represents a halogen atom, an alkoxy group of 4 or less carbon atoms or an alkyl group of 6 or less carbon atoms and R.sup.2 may be identical or different when m is 2 or more, R.sup.3 independently represents a hydrogen atom or an alkyl group of 6 or less carbon atoms, the average recurring unit number n is 0-10, l is 0-4 and m is 0-7, and can be contained as a curing agent in an epoxy resin composition which is used not only for giving cured products but also for encapsulating semiconductor devices.
摘要:
The polyamino oligomers of this invention are obtained by reacting diisopropenylbenzenes or bis(.alpha.-hydroxyisopropyl)benzenes and anilines in the presence of an acid catalyst and characterized by the recurring unit having an indane skeleton. These polyamino oligomers can be used as curing agent for laminate resins. Also, they can be reacted with maleic anhydride to prepare polymaleimide compounds of this invention.The polymaleimide compounds of this invention are low in melting point (or softening point) and, in combination with a substance producing three-dimensional crosslinkage such as triallyl isocyanurate, aromatic diamine, etc., can provide thermosetting resin compositions suited for producing copper-clad laminates. The copper-clad laminates obtained from the thermosetting resin compositions of this invention are low in dielectric constant, heat-resistant and also low in water absorptivity, so that they are useful for multi-layer printed boards.
摘要:
A thermosetting resin composition useful for a copper-clad laminate is provided, which comprise (A) an aromatic diamine compound represented by the following formula: ##STR1## wherein Ar is a divalent aromatic residue, and R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each is an allyl group or a hydrogen atom but at least one of them is an allyl group, and (B) a polymaleimide compound having two or more maleimide groups in a molecule thereof.
摘要:
A thermosetting resin composition useful for a copper-clad laminate is provided, which comprise (A) an aromatic diamine compound represented by the following formula: ##STR1## wherein Ar is a divalent aromatic residue, and R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each is an allyl group or a hydrogen atom but at least one of them is an allyl group, and (B) a polymaleimide compound having two or more maleimide groups in a molecule thereof.
摘要:
A curable resin composition comprising an epoxy resin, a hardener and an epoxy compound-dialkylamine adduct as a latent hardener. The composition is excellent in storage stability at ambient temperatures and rapidly curable under heating conditions, and is usable as adhesives, paints, molding materials, casting materials and so on.
摘要:
An electroconductive paste comprising(a) an electroconductive filler,(b) a reactive solvent, and(c) a hardener comprising(c-1) an epoxy resin,(c-2) a latent hardener, and(c-3) an epoxy compound-dialkylamine adduct,the percent by weight of (a), (b) and (c) being 95 to 50, 1 to 20 and 4 to 30, respectively, and the weight ratio of (c-1):(c-2):(c-3) being 100:0 to 30:0.1 to 40. The paste is useful for bonding electronic elements to metal lead frames and/or substrates.
摘要:
A thermosetting resin composition comprising (i) a polymaleimide compound having at least two maleimide groups in the molecule and (ii) an s-triazine compound having at least two alkenylaryloxy groups in the molecule; a resin-composition for encapsulant comprising said polymaleimide compound, said traizine compound, and an inorganic filler as essential components; and said s-triazine compound.
摘要:
A thermosetting resin composition comprising (i) a polymaleimide compound having at least two maleimide groups in the molecule and (ii) an s-triazine compound having at least two alkenylaryloxy groups in the molecule; a resin-composition for encapsulant comprising said polymaleimide compound, said triazine compound, and an inorganic filler as essential components; and said s-triazine compound.
摘要:
The present invention provides an improved epoxy resin composition comprising an epoxy resin and a novel imide compound represented by the formula ##STR1## wherein X represents an --NH.sub.2 group and/or --OH group, Ar.sub.1 and Ar.sub.2 independently represent an aromatic residue, R.sub.1 represents a hydrogen atom or an alkyl group having from 1 to 10 carbon atoms, R.sub.2 represents a hydrogen atom, an alkyl or alkoxy group having from 1 to 20 carbon atoms or hydroxyl group, and each of m and n represents a number of from 0 to 30.