Abstract: A flame-resistant polybutylene terephthalate molding composition has vastly improved fatigue strength and improved melt flow by incorporating therein a halogenated epoxy flame retardant represented by the general formula: ##STR1## wherein an n is the degree of polymerization and the halogenated epoxy resin has a molecular weight of at least about 20,000 to 40,000; X is a chlorine or bromine atom, and i is an integer of from 1-4.

Abstract: An epoxy resin encapsulating composition for semiconductor packages consisting essentially of an epoxy resin adduct of epichlorohydrin and an aromatic hydroxyl-containing compound, and an inorganic ion-exchange solid material admixed with the epoxy resin adduct. The ion-exchange solid material is selected to have the capability of exchanging its mobile anions with the undesired chlorine ions which occur inherently in the package made from the encapsulating composition and are very likely to corrode the metallic conductor on the semiconductor to be encapsulated. The ion-exchange solid material is characterized to include antimony and bismuth as basic materials forming an ion-exchange network which carries the mobile anions to be substituted with the chlorine ions. This ion-exchange material also is found to be also effective for trapping undesired alkali metal ions, for example, Na.sup.

Abstract: A resin encapsulation type semiconductor device having a semiconductor element and a resinous encapsulating material for encapsulating said semiconductor element therein, said resinous encapsulating material comprising a cured product of an epoxy resin composition for encapsulation of semiconductor, comprising:(a) 100 parts by weight of an epoxy resin;(b) 5 to 500 parts by weight of a curing agent having at least two phenolic hydroxyl groups in one molecule;(c) 0.01 to 20 parts by weight of an organic phosphine compound; and(d) 0.1 to 100 parts by weight of at least one antimony oxide selected from the group consisting of diantimony tetroxide, hexaantimony tridecaoxide and diantimony pentoxide high reliability in terms of thermal cycle resistance, humidity resistance and the like.

Abstract: A fire retardant, impact resistant polyamide composition containing 1 to 25% of a rubbery copolymer containing functional groups derived from maleic, fumaric, norbornadiene and succinic anhydrides or an alicyclic carboxylic acid or functional derivative thereof having a cis-form double bond in the ring, 10 to 30% of a halogenated polymer having a weight average molecular weight greater than 5,000 and a synergist for the halogenated fire retardant. The composition provides a good level of impact strength in combination with a high level of fire retardancy. A particularly good balance of properties can be obtained from compositions containing fillers, especially glass fibres.

Abstract: This invention provides an insulating protective material effective for protection of electronic and electric devices such as electronics elements. This insulating protective material contains at least one hydrous oxide of a metal which has ion exchange properties together with a fusion bonding component such as low-melting glass, epoxy resin, phenolic resin, silicone resin, etc. and a filler such as fused silica, .beta.-eucryptite, glass fiber, glass beads, etc.Said specific hydrous oxide can be used together with a sulfur-containing organic high molecular weight compound.The hydrous oxides used in protective materials as a sealing material for electronic and electric devices can capture an ionic impurity eluted from the components of the protective material and fix it therein thereby to provide stable electronic materials excellent in performance.

Abstract: Addition of waxes or wax-like substances, in conjunction with metal salts or metal complexes of organic compounds, to powder coating compositions based on epoxy resins and carboxyl-terminated polyesters affords a matting effect without substantially impairing the other properties of said coating composition.

Abstract: Compounds of the general formula I ##STR1## where R is hydrogen or C.sub.1 -C.sub.6 -alkyl and X is chlorine or bromine, with the proviso that X is only bromine when R is H, possess pigment properties and are distinguished by high color strength, brilliance and very good fastness properties.

Abstract: A method for preparing flame retardant thermoplastic nylon compositions comprising incorporating into the thermoplastic nylon a halogenated bisphenol-A epoxy resin having a halogen content of at least 20% and a molecular weight above 8,000 in an amount sufficient to impart flame retardance.

Abstract: A resin composition comprising(I) a granular or powdery resin which is a condensation product of a phenol, an aldehyde and optionally a nitrogen-containing compound having at least two active hydrogens and is characterized by (A) containing spherical primary particles and their secondary agglomerated particles each having a particle diameter of 0.1 to 150 microns, (B) having such a size that at least 50% by weight thereof can pass through a 100 Tyler mesh sieve, and (C) having a free phenol content, determined by liquid chromatography, of not more than 500 ppm, and(II) at least one member selected from the group consisting of (1) a rubbery elastic material, (2) a thermoplastic resin and (3) a curable resin other than said granular or powdery resin (I) and/or a filler material other than said granular or powdery resin (I).

Abstract: Metallized polymers are made by melting the metal and polymer together. The products have improved impact resistance and electrical and thermal conductivity. They can also be used for electromagnetic interference shielding.

Abstract: Flame retardant reinforced with thermoplastic polyester resin compositions are disclosed glass fiber and a system of flame retardants represented by the following general formulas (I) and (II), together with antimony trioxide. The flame retardant system is a blend of 1-20 parts by weight of component (I), and 2-40 parts by weight of component (II), provided the weight ratio (I)/(II) of the flame retardant components (I) to (II) is in the range of 0<(I)/(II).ltoreq.5, and that the total amount of flame retardants (I) plus (II) is in the range of 3-40 parts by weight. From 2 to 3 parts by weight of antimony trioxide is present and 5 to 60% by weight of glass fiber is also present, these two percentages being expressed on the basis of the weight of the total resin composition. The resin compositions exhibit outstanding mechanical, thermal, forming and machining properties in addition to being fire retardant.

Abstract: Metallized polymers are made by melting the metal and polymer together. The products have improved impact resistance and electrical and thermal conductivity. They can also be used for electromagnetic interference shielding.

Abstract: Flame retardant reinforced with polyester resin compositions are disclosed glass fiber and a system of flame retardants represented by the following general formulas (I) and (II), together with antimony trioxide. The flame retardant system is a blend of 1-20 parts by weight of component (I), and 2-30 parts by weight of component (II), provided the weight ratio (I)/(II) of the flame retardant component (I) to (II) is in the range of 0.2<(I)/(II)<4, and that the total amount of flame retardants (I) plus (II) is in the range of 3-40 parts by weight. From 2 to 30 parts by weight of antimony trioxide is present and 5 to 60% by weight of glass fiber is also present, these two percentages being expressed on the basis of the weight of the total resin composition. The resin compositions exhibit outstanding mechanical, thermal properties and moldability in addition to being fire retardant.

Abstract: A flame retardant diaphragm for speakers, etc. comprises an admixture of natural fibers and inorganic fibers. The admixture is impregnated with a thermosetting resin and an organic bromine compound, and heat-treated under pressure. The organic bromine compound acts as a flame retarder.

Abstract: An improved powder composition for preparing self-extinguishing coatings containing epoxy resin, fluidizing agent, hardening agent, catalyst, pigment and filler, characterized in that the composition does not contain any halogen component, and the filler is an inorganic filler containing at least one self-extinguishing agent, such as Al(OH).sub.3, which is capable of producing a non-toxic substance exhibiting a self-extinguishing function.