Disclosed are a resin composition comprising 20 to 50 mass % of a polyphenylene ether-based resin (a), 0.1 to 9 mass % of a polyphenylene ether-based resin modified with an unsaturated carboxylic acid or acid anhydride thereof (b), 15 to 50 mass % of a homopolystyrene (c), 1 to 25 mass % of one or more selected from the group consisting of a hydrogenated block copolymer (d-1) and a rubber-modified polystyrene (d-2), and 5 to 35 mass % of glass fibers (e) which are surface-treated, a resin composition comprising 20 to 50 mass % of a polyphenylene ether-based resin (a), 15 to 50 mass % of a homopolystyrene (c), 5 to 35 mass % of glass fibers (e), and 0.01 to 1 mass % of compounds (f), a method of producing the same, a molded article, and a mechanical component and housing.

Disclosed are a resin composition comprising 20 to 50 mass % of a polyphenylene ether-based resin (a), 0.1 to 9 mass % of a polyphenylene ether-based resin modified with an unsaturated carboxylic acid or acid anhydride thereof (b), 15 to 50 mass % of a homopolystyrene (c), 1 to 25 mass % of one or more selected from the group consisting of a hydrogenated block copolymer (d-1) and a rubber-modified polystyrene (d-2), and 5 to 35 mass % of glass fibers (e) which are surface-treated, a resin composition comprising 20 to 50 mass % of a polyphenylene ether-based resin (a), 15 to 50 mass % of a homopolystyrene (c), 5 to 35 mass % of glass fibers (e), and 0.01 to 1 mass % of compounds (f), a method of producing the same, a molded article, and a mechanical component and housing.

The present invention provides a resin composition capable of giving a molded body having a metallic color tone and excellent in surface hardness, surface glossiness, mechanical properties, and flow mark reducing property. The present invention relates to a polyamide resin composition comprising 100 parts by mass of a polyamide (A), 0.1 to 50 parts by mass of a cellulose fiber (B) having an average fiber diameter of 10 μm or less and 0.1 to 12 parts by mass of a metallic pigment (C).

The present invention provides a resin composition capable of giving a molded body having a metallic color tone and excellent in surface hardness, surface glossiness, mechanical properties, and flow mark reducing property. The present invention relates to a polyamide resin composition comprising 100 parts by mass of a polyamide (A), 0.1 to 50 parts by mass of a cellulose fiber (B) having an average fiber diameter of 10 μm or less and 0.1 to 12 parts by mass of a metallic pigment (C).

An organopolysiloxane is provided. The organopolysiloxane is represented by a general formula.

In the general formula, R.sup.1 are the same or different aliphatic unsaturated monovalent hydrocarbon groups having 2 to 12 carbon atoms, R.sup.2s are the same or different monovalent hydrocarbon groups having 1 to 12 carbon atoms and not having an aliphatic unsaturated bond, R.sup.3s are the same or different alkyl groups having 1 to 3 carbon atoms, “n” is an integer of from 1 and 500, and “a” is 0 or 1. A thermally conductive silicone composition having the organopolysiloxane as a component is also provided. The organopolysiloxane can be used as a surface treatment agent for a thermally conductive filler. The organopolysiloxane provides for favorable handling/workability of compositions even if such compositions are highly loaded with a thermally conductive filler.

An organopolysiloxane is provided. The organopolysiloxane is represented by a general formula.

In the general formula, R.sup.1 are the same or different aliphatic unsaturated monovalent hydrocarbon groups having 2 to 12 carbon atoms, R.sup.2s are the same or different monovalent hydrocarbon groups having 1 to 12 carbon atoms and not having an aliphatic unsaturated bond, R.sup.3s are the same or different alkyl groups having 1 to 3 carbon atoms, “n” is an integer of from 1 and 500, and “a” is 0 or 1. A thermally conductive silicone composition having the organopolysiloxane as a component is also provided. The organopolysiloxane can be used as a surface treatment agent for a thermally conductive filler. The organopolysiloxane provides for favorable handling/workability of compositions even if such compositions are highly loaded with a thermally conductive filler.

A flame retardant composition comprising: 34-94 wt % of a homopolycarbonate, acopolycarbonate, or a combination thereof; 5-85 wt % poly(carbonate-siloxane), in an amount effective to provide 2-6 wt % dimethyl siloxane; 0.05-0.6 w t%, preferably 0.2-0.4 wt%, of a C.sub.1-16 alkyl sulfonate salt flame retardant; 1-15 wt % of a mineral-filled silicone flame retardant synergist; 0.05-0.5 wt % of an anti-drip agent; wherein each amount is based on the total weight of the flame retardant composition, which sums to 100 wt %; and wherein a molded sample of the flame retardant composition has a Vicat softening temperature of greater than or equal to 140° C. as measured according to the ISO-306 standard at a load of 10 N and a heating rate of 50° C. per hour, and a flame test rating of V0 as measured according to UL-94 at a thickness of 1.0 millimeter, or at a thickness of 0.8 millimeter.

A flame retardant composition comprising: 34-94 wt % of a homopolycarbonate, acopolycarbonate, or a combination thereof; 5-85 wt % poly(carbonate-siloxane), in an amount effective to provide 2-6 wt % dimethyl siloxane; 0.05-0.6 w t%, preferably 0.2-0.4 wt%, of a C.sub.1-16 alkyl sulfonate salt flame retardant; 1-15 wt % of a mineral-filled silicone flame retardant synergist; 0.05-0.5 wt % of an anti-drip agent; wherein each amount is based on the total weight of the flame retardant composition, which sums to 100 wt %; and wherein a molded sample of the flame retardant composition has a Vicat softening temperature of greater than or equal to 140° C. as measured according to the ISO-306 standard at a load of 10 N and a heating rate of 50° C. per hour, and a flame test rating of V0 as measured according to UL-94 at a thickness of 1.0 millimeter, or at a thickness of 0.8 millimeter.

The present invention relates to a cuarable resin composition, etc., having an excellent transparency, applicability, and workability. Specifically, the present invention relates to a resin composition, etc., including: (A) a polymer having two or more (meth)acryloyl groups in one molecule thereof; (B) a silica powder surface-treated with an alkyl silane; and (C) boric acid or a borate ester.

Metal oxide having a surface onto which a multitude of individual polymers are grafted, each polymer comprising an addition polymer having a first and a second end, and a first moiety comprising a terminal phosphonate group, which first moiety is bonded to the first end, which phosphonate group attaches to the metal oxide surface in such a way that the multitude of the grafted polymers comprises at least one group of adjacent polymers that have a stretched chain conformation wherein the adjacent stretched chains have a substantially parallel orientation, such that the polymers within said group together form a brush structure. Method of grafting a multitude of individual polymers onto a surface of a metal oxide.