摘要:
A novel thermoplastic resin composition comprising a blend of a resin composition (D) with a copolymer (C) containing epoxy groups, said resin composition (D) being composed of (A) a polypropylene graft-modified by an unsaturated carboxylic acid or anhydride thereof, with or without unmodified polypropylene, and (B) a saturated polyester resin has excellent physical properties and can be used to provide shaped articles, sheets and films having excellent appearance, uniformity and smoothness.
摘要:
A polyphenylene ether type thermoplastic resin composition excellent in delamination resistance, which comprises: 95 to 5 parts by weight of a mixture of:
(A) 1 to 100 % by weight of a polyphenylene ether type resin and (B) 0 to 99% by weight of an alkenyl aromatic type resin, 5 to 95 parts by weight of (C) a graft product in which an alkenyl aromatic compound and, if necessary, at least one other unsaturated monomer is grafted on an ethylene-α-olefin type copolymer rubber, 0 to 40 parts by weight of (D) an ethylene-α-olefin copolymer rubber, and (E) a radical initiator in a proportion of 0.01 to 5 parts by weight per 100 parts by weight of a total of the components (A) to (D).
摘要:
A polyphenylene ether thermoplastic resin composition excellent in impact resistance, particularly surface impact strength, which comprises a blend of: 95 to 5 parts by weight of a mixture of:
(A) 1 to 100 % by weight of a polyphenylene ether resin and (B) 0 to 99% by weight of an alkenyl aromatic resin, with (C) 5 to 95 parts by weight of a graft copolymer obtainable by graft-copolymerizing (a) an alkenyl aromatic compound and, if necessary, (b) other unsaturated monomer onto (c) an ethylene-α-olefin copolymer rubber having a ratio (Q value) of weight average molecular weight/number average molecular weight as measured by GPC of 4.0 or less and having a Mooney viscosity at 121°C of 40 or more, in which graft copolymer the weight ratio of (a) the alkenyl aromatic compound/(b) the other unsaturated monomer/(c) the ethylene-α-olefin copolymer rubber is 20-80/0-18.4/80-20 (the total of the component (a) and the component (c) is 100 parts by weight) and the weight ratio of the component (b)/(the component (a) + the component (b)) is 0.23 or less.
摘要:
A thermoplastic resin composition comprises: 100 parts by weight of at least one polyamide resin, and 0.01 to 20 parts by weight of at least one fluidity modifier selected from the group consisting of: a carboxylic acid having at least two carboxyl groups in the molecule, a derivative of a carboxylic acid having at least two carboxyl groups in the molecule, an amine having at least two nitrogen atoms in the molecule, urea, and a derivative of urea.
摘要:
A thermoplastic resin composition comprises: 100 parts by weight of at least one polyamide resin, and 0.01 to 20 parts by weight of at least one fluidity modifier selected from the group consisting of: a carboxylic acid having at least two carboxyl groups in the molecule, a derivative of a carboxylic acid having at least two carboxyl groups in the molecule, an amine having at least two nitrogen atoms in the molecule, urea, and a derivative of urea.
摘要:
The polypropylene composition of the present invention comprises: a blend of a resin composition composed of a specific polypropylene type resin (C) and at least one saturated polyester resin (D), an epoxy group containing copolymer (E) and at least one rubber selected from the group consisting of an ethylenic copolymer rubber (F), a modified ethylenic copolymer rubber (G) obtained by graft copolymerizing an unsaturated carboxylic acid or a derivative thereof onto an ethylenic copolymer rubber and a modified ethylenic copolymer rubber (H) obtained by graft copolymerizing an unsaturated carboxylic acid or derivative thereof .and an unsaturated aromatic monomer onto an ethylenic copolymer rubber, and a basic compound (I) optionally added as a reaction accelerator. The polypropylene composition according to the present invention is not only good in molding processability but also markedly effective in that it can give molded products superior in physical properties to those obtained from individual polymers constituting the thermoplastic resin composition. The novel polypropylene composition provided by the present invention can easily be processed into a molded product, a film, a sheet or the like by a molding method usually used for molding thermoplastic resins, for example, injection molding, extrusion molding or the like, giving a product which has a very good balance of stiffness, heat resistance, impact resistance, scratch resistance, coating properties, oil resistance, chemical resistance, water resistance, etc., and is ecellent in appearance uniformity and smoothness. It can be advantageously used for purposes requiring especially high heat resistance and impact resistance, in particular, low-temeprature impact resistance.
摘要:
According to the present invention, there is provided a modified polyolefin resin having the following merits: (1) The amount of bound unsaturated carboxylic acid, a derivative thereof or unsaturated epoxy compound is high. (2) The change of the melt flow rate during the modification is small. (3) The physical properties are of high grade. (4) The transparency is improved due to the graft of unsaturated aromatic compound. The modified polyolefin resin of the present invention can be used for adhesives, covering materials, binders, laminate bonding agent and polymer alloy constituents.