A high-permittivity rubber compound (MX) to be over 10, 15, or 20 in relative permittivity is produced by filling, to 100 weight parts of base material (M10), 300 or more, 400 or more, or 500 or more weight parts of barium titanate family material as powder (M11) over 2000 in relative permittivity at temperatures from room temperature to 90.degree. C. A high-permittivity rubber compound (M30, M60) crosslinked by peroxide is heat-treated (S21, S31) to remove decomposition residue of the peroxide,...

A chlorine-containing resin composition for covering an electric wire of the present invention, has a heat stability of not less than 240 minutes and a volume resistivity of 5.0.times.10.sup.13 to 1.0.times.10.sup.16 .OMEGA..multidot.cm when measured according to JIS K6723, and comprises: 100 parts by weight of a chlorine-containing resin, and 1.5 to 10 parts by weight of Mg--Al-based hydrotalcite-type particles having a composition represented by the formula: wherein 0.2.ltoreq.z/(x+z).ltoreq.0...

There is disclosed a polyarylene sulfide resin composition which comprises 100 parts by weight of a polyarylene sulfide resin and 5 to 300 parts by weight of metal hydroxides composed of 50% by weight or more of magnesium hydroxide, and may further containing 20 to 120 parts by weight of glass fibers and 30 to 80 parts by weight of talc.

It has now been discovered that a selected magnesium oxychloride can be mixed with a thermoplastic polymer sensitive to decomposition by water, such as polyamides or polyesters, or with fluoropolymers.

A resin composition for a resin magnet includes a resin binder containing a thermoplastic resin as a main component and a polymerized fatty acid based polyamide elastomer: and a magnetic powder mixed and dispersed in said resin binder. The resin composition further contains an ultra fine powder of an inorganic filler having a particle size of 1 .mu.m or less. A process of producing pellets of a resin composition for a resin magnet, includes the steps of: mixing pellets of a binder resin with a m...

The invention concerns the use as filler, in a polymer composition, of hydrotalcite calcined and/or incorporated with an anionic surfactant. The invention also concerns polymer compositions comprising such filler and finished articles based on said compositions.

A polyamide resin composition contains: 85 to 95 parts by weight of a polyamide resin; 5 to 15 parts by weight of a wollastonite; 3 to 10 parts by weight, to 100 parts by the total weight of the polyamide resin and the wollastonite, of a styrene copolymer modified with at least one modifier of unsaturated carboxylic acids and unsaturated dicarboxylic anhydrides; and 0.5 to 5 parts by weight, to 100 parts by the total weight of the polyamide resin and the wollastonite, of a high-density polyethyl...

The present invention relates to improved nanocomposite compositions and methods for making and using the same. This invention also relates to the use of these inorganic-organic nanocomposite in compositions, for example, coatings, sealants, caulks, adhesives, and as additives for solid polymer-containing compositions.

Novel paint solvent and paints thinned with such solvents are disclosed. In one disclosed embodiment the paint solvent is an aqueous solution containing a high concentration a strongly alkaline agent containing calcium ion as its main cation. Another solvent is disclosed which is a homogeneous blend of (a) an aqueous solution containing a high concentration a strongly alkaline agent having calcium as its main cation and (b) an an aqueous solution obtained by treating seawater with the strongly a...

A polyolefin resin composition comprising from 30% to 96% by weight of a polyolefin, from 3% to 50% by weight of a fibrous inorganic filler selected from the group consisting of a magnesium hydroxide fiber, a magnesium oxide fiber, and a gypsum fiber having a mean fiber diameter of from 0.1 to 2 .mu.m and an aspect ratio of from 20 to 100 or a mixture of two or more of said inorganic fillers, and from 1% to 60% by weight of a thermoplastic elastomer. The said composition provides a molded materi...