The compound of the present application has a low melting point and excellent flexibility, and the like, so that a phthalonitrile resin, a prepolymer thereof, or a polymerizable composition forming the same can exhibit excellent workability and a wide process window and it can be made to ensure improved impact strength. The compound can form the phthalonitrile resin or the like into a liquid phase or form it into a rubber phase. Such a phthalonitrile resin or the like can be applied to various applications.

The polymerizable composition of the present application may exhibit a wide process window to have excellent workability, and may form a phthalonitrile resin having excellent heat resistance or a prepolymer thereof.

Provided is a versatile heat-curable resin composition for semiconductor encapsulation that has a favorable water resistance and abradability, and exhibits a superior fluidity and a small degree of warpage even when used to perform encapsulation on a large-size wafer. The heat-curable resin composition of the invention contains: (A) a cyanate ester compound having not less than two cyanato groups in one molecule; (B) a phenol curing agent containing a resorcinol-type phenolic resin; (C) a curing accelerator; and (D) a spherical inorganic filler.

The invention relates to an electronic device comprising a compound having Formula (1): AB.sub.x (1), wherein A is a structural moiety that consists of at least two atoms and comprises a conjugated system of delocalized electrons, each B is independently selected from an imine functional group (1a), wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 are independently selected from C.sub.1-C.sub.30 alkyl, C.sub.2-C.sub.30 alkenyl, C.sub.2-C.sub.3 alkinyl, C.sub.3-C.sub.30 cycloalkyl, C.sub.6-C.sub.30 aryl, C.sub.2-C.sub.30 heteroaryl, C.sub.7-C.sub.30 arylalkyl, C.sub.3-C.sub.30 heteroarylalkyl, the wave line represents a covalent bond to the imine nitrogen atom, G is in each group (1a) independently selected from a quarternary carbon atom and from a cyclopropenylidene structural moiety, x is an integer equal one or higher, preferably equal two or higher, and the lone electron pair of the imine nitrogen atom and/or the pi-electrons of the imine double bond of at least one group B is conjugated with the conjugated system of delocalized electrons comprised in the structural moiety A, with the proviso that two or more of the substituents R.sup.1, R.sup.2, R.sup.3, R.sup.4 may be connected to form a ring that may contain also unsaturation and, if any of the substituents R.sup.1, R.sup.2, R.sup.3, R.sup.4 comprises two or more carbon atoms, up to one third of the overall count of the carbon atoms in the substituent or in any ring formed by two connected substituents can be replaced with heteroatoms independently selected from O, S, N and B as well as to an electrically semiconducting material and a compound for use in the electronic device. ##STR00001##

The present invention relates to a process for one-stage preparation of polyamines by reacting compounds comprising at least two nitrile groups (dinitrile) or at least one nitrile group and one amino group (amino nitrile) with hydrogen in the presence of heterogeneous transition metal catalysts.

An electrochromic composition is provided. The electrochromic composition includes 0.510 parts by weight of a first oxidizable polymer, 0.510 parts by weight of a reducible organic compound, 0.520 parts by weight of an electrolyte, and 6098.5 parts by weight of a solvent. The first oxidizable polymer is a polymer of 1 molar part of diamine and 0.120 molar parts of dicarboxylic acid, diacyl chloride, or dianhydride, a mixture of the aforementioned polymers, or a copolymer of the aforementioned polymers. An electrochromic element including the aforementioned electrochromic composition is also provided.

The present invention relates to formulations comprising at least one hyper-branched polymer which contains 30 to 70 mol % of at least one hole-transporting recurring unit A, 5 to 30 mol % of least one branching recurring unit B, 5 to 30 mol % of at least one further recurring unit C and 5 to 40 mol % of least one end group E, where the recurring units A, B and C are different from one another, and at least one organic solvent, characterised in that the formulation has a viscosity of ?25 mPas. The present invention furthermore relates to the corresponding hyperbranched polymers and to processes for the preparation thereof. The present invention additionally also relates to the use of the hyperbranched polymers according to the invention in electronic or opto-electronic devices, and to electronic or opto-electronic devices containing these polymers.

Provided is an epoxy resin composition for giving a carbon fiber-reinforced composite material that simultaneously achieves tensile strength and compressive strength. An epoxy resin composition containing at least the following constituent elements [A]-[D] wherein the epoxy resin composition contains 5-50 mass % of constituent element [A] and 20-95 mass % of constituent element [B] relative to 100 mass % of total epoxy resin weight. [A]: at least one epoxy resin selected from 1,2-bis(glycidyloxy)benzene, 1,3-bis(glycidyloxy)benzene, 1,4-bis(glycidyloxy)benzene, derivatives of these, and epoxy resins having a structure represented by general formula [1] (in general formula [1], at least one of R.sub.1-R.sub.5 and at least one of R.sub.6-R.sub.10 is a glycidyl ether group, and the other R.sub.1-R.sub.10 represent any of a hydrogen atom, halogen atom, or aliphatic hydrocarbon group having four or fewer carbon atoms.); [B]: glycidylamine epoxy resin having three or more glycidyl groups per molecule; [C]: thermoplastic resin soluble in epoxy resin; [D]: epoxy resin curing agent. ##STR00001##

The present application relates to a phthalonitrile resin, a polymerizable composition, a prepolymer, a composite, and a preparation method and use thereof. The present application can provide phthalonitrile, and a polymerizable composition and prepolymer using the same, which can have excellent curability, exhibit a suitable processing temperature and a wide window process, and form a composite having excellent physical properties.

An antioxidant polymer (e.g., oligomer) composition comprising repeat units of diphenylamine monomers of formula I

##STR00001##

wherein R is H, C.sub.1-C.sub.18 alkyl, C.sub.2-C.sub.18 alkenyl, C.sub.2-C.sub.18 alkynyl, C(O)C.sub.1-C.sub.18 alkyl, C(O)aryl and R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently H or a linear or branched C.sub.1-C.sub.18 alkyl, C.sub.1-C.sub.18 alkoxy, C.sub.1-C.sub.18 alkylamino, C.sub.1-C.sub.18 dialkylamino, C.sub.1-C.sub.18 alkylthio, C.sub.2-C.sub.18 alkenyl, C.sub.2-C.sub.18 alkynyl or C.sub.7-C.sub.21 aralkyl and wherein the number average molecular weight (Mn) of the polymer is from about 350 g/mol to about 5000 g/mol are highly effective antioxidants in lubricant compositions. The polymer compositions may be prepared by a process comprising subjecting diarylamine monomers to dehydrocondensation conditions.