摘要:
Polymer compositions comprising polysiloxanes and metal coated boron phosphates are described and they unexpectedly display flame retardant properties and hydrolytic stability without creating environmental hazards.
摘要:
A resin composition is provided which comprises (A) a saponified ethylene-vinyl acetate copolymer (referred to as EVOH for short) with an ethylene content of 20 to 60 mole percent and a saponification degree of not less than 90 mole percent, and contains therein (B) a boron compound as an essential component, (C) acetic acid as an optional component, and at least one compound selected from among (D) an acetic acid salt and (E) a phosphoric acid compound as an essential component, the contents of the respective additive components per 100 parts by weight of EVOH (A) being as follows: boron compound (B): 0.001 to 1 part by weight on the boron basis; acetic acid (C): 0 to 0.05 part by weight; acetic acid salt (D): 0.001 to 0.05 part by weight on the metal basis; and phosphoric acid compound (E): 0.0005 to 0.05 part by weight on the phosphate radical basis. This resin composition is typically produced by bringing EVOH (A) with a water content of 20 to 80% by weight into contact with an aqueous solution containing the respective additive components mentioned above and then subjecting the thus-treated EVOH to fluidized state drying and then to stationary state drying.
摘要:
An integrated circuit has a lead frame, on which a chip of a semiconductor material is attached by a layer of adhesive. The layer of adhesive has at least one filler and a plastic material. The filler is formed of spherical nanoscale particles produced by a condensation process, which may be conductive or insulating. It is also possible to provide the chip with a sheathing which has such fillers.
摘要:
A method for suspending borate particles in aqueous dispersions which comprises blending in water 20 to 60 parts of sodium tetraborate decahydrate, with from 2 to 20 parts of an acrylic emulsion trade named Rhodoline 1560, and adjusting the pH between 7 and 12 using an alkaline reagent.
摘要:
A zinc borate having a particular crystallite size and containing very little sodium components and a method of preparing the same. The zinc borate has a particular chemical composition, has a crystallite size of not smaller than 40 nm as found from diffraction peaks of indexes of planes of (020), (101) and (200) in the X-ray diffraction image (Cu-k&agr;) and contains sodium components in amounts of not larger than 100 ppm as measured by the atomic absorptiometric method.
摘要:
A thermally conductive mechanically compliant pad of high stability including a quantity of gallium and/or indium alloy liquid at temperatures below about 120° C. and a boron nitride particulate solid blended into the liquid metal alloy to form a paste. The paste is then combined with a quantity of a flowable plastic resin consisting of a blend of silicone oil and octyl-ethoxysilane to form the mechanically compliant pad, the compliant pad comprising from between about 10% and 90% of metallic coated particulate, balance flowable plastic resin blend.
摘要:
To provide a fluorine-containing resin composition useful as a molding material for parts of electronic and electrical equipment which assures well-balanced enhancement of dielectric property, heat resistance, mold-processability (precise processability) and mechanical properties and the parts of electronic and electrical equipment. The fluorine-containing resin composition for parts of electronic and electrical equipment comprises 70 to 95% by weight of (I) fluorine-containing resin mixture comprising (a) a fluorine-containing resin containing polytetrafluoroethylene not to be fibrillated and (b) a thermoplastic resin other than the fluorine-containing resin and 5 to 30% by weight of (II) a metal compound whisker having a single bond strength of not less than 190 KJ/mol calculated from a dissociation energy of bond between a metal element and oxygen. The parts of electronic and electrical equipment which are obtained from the composition have a dielectric constant of not more than 3.5.
摘要:
Poly(biphenyl ether sulfone) resins are improved in resistance to UV yellowing when blended with up to 50 wt % polyetherimide. Flame retardant blends of poly(biphenyl ether sulfone) and polyetherimide are particularly useful in fabricating appearance parts for aircraft interiors.
摘要:
A cooling agent including a metal salt aqueous solution and a nonionic polymer as an agent for extending cooling duration, wherein the nonionic polymer has a group with an affinity due to interaction with a water molecule, and is free of an ionic group ionically bound to a metallic ion in the aqueous solution, a cooling pack in which the cooling agent is charged into a pack made of a resin, and a cooling box in which the cooling pack is placed in a cooling box made of a resin foam. The cooling agent, the cooling pack and the cooling box provide long-term cooling duration, and are suited for long-term cooled transportation, cooled storage and cooled display.
摘要:
An anticorrosion formulation for coating wood based panels to inhibit the corrosion of metallic members in contact with the panel is disclosed. In one embodiment, the formulation includes water, a binding agent, boric acid, and a group II metal hydroxide selected from beryllium hydroxide, magnesium hydroxide, calcium hydroxide, strontium hydroxide, and barium hydroxide. A wood-based panel coated with the anticorrosion formulation and a method for forming the coated panel are provided.