摘要:
Thermoplastic resin compositions are provided that comprise a thermoplastic resin and an amount of antioxidant effective to increase the adhesion of paint to an article made from the composition. Also provided are methods to improve the paint adhesion of articles wherein the articles have been subjected to a temperature of at least about 330° F. for period of at least about 10 minutes. In a preferred embodiment, the antioxidant, also known as a stabilizer, or mixture of stabilizers is selected from the group consisting of the phenolic antioxidants, the 3-arylbenzofuranones, the hindered amine stabilizers, the ultraviolet light absorbers, the alkaline metal salts of fatty acids, the hydrotalcites, the epoxydized soybean oils, the hydroxylamines, the tertiary amine oxides, thermal reaction products of tertiary amine oxides, the thiosynergists, and mixture containing at least one of the foregoing.
摘要:
An article comprising a paint film disposed on at least a portion of a thermoplastic section. The thermoplastic section is made of a thermoplastic composition. The thermoplastic composition has a compatibilized blend of a poly(arylene ether) and a polyamide, an electrically conductive carbon black, and an impact modifier. The electrically conductive carbon black has agglomerates and the agglomerates have an average agglomerate size greater than or equal to 30 square micrometers. The weight ratio of electrically conductive carbon black to polyamide is greater than or equal to 0.043.
摘要:
A single or multi-stage process for providing compatible thermoplastic blends of polyphenylene ether resins and polyamide resins is provided by combining such resins with a compatiblizing amount of an agent having in its molecule both acyl-functionality as well as at least one of the following functional groups: carboxylic acid or acid anhydride, acid amide, imido, carboxylic acid ester, amino or hydroxyl group.
摘要:
The surface gloss and flexural modulus of articles molded from blends of a polyphenylene ether resin and a rubber modified, high impact polystyrene (HIPS) are regulated by controlling the swell index of the HIPS rubber within the range of 8 to 20. Duller surface finishes and higher flexural moduli are achieved with use of higher swell indices, while glossier surfaces and lower flexural moduli are obtained with lower swell indices within this range.
摘要:
Functionalized polyphenylene ether compositions are provided which are particularly useful for effecting compatibility for a blend of polyphenylene ether resin and a polyamide resin. The functionalized-polyphenylene ether is the reaction product of a polyphenylene ether polymer and a compound having the general formula (i)--Z--(ii), wherein group (i) is a polyphenylene ether-philic moiety such as acyl chloride, group (ii) is a polyamide-philic moiety such as dicarboxylic acid anhydride, and Z is a divalent hydrocarbon radical providing a covalent linkage between groups (i) and (ii). An example of the compound having general formula (i)--Z--(ii) is trimellitic anhydride acid chloride.
摘要:
The melt viscosity of thermoplastic compositions of polyphenylene ether resin and rubber modified high impact polystyrene resin is significantly reduced by inclusion of a tetra-alkyl bisphenol polycarbonate resin. The resulting blend can be processed at lower temperatures, and, after molding, exhibits better UV color stability while retaining most important other physical properties. Both the compositions and a method of preparation are described.
摘要:
A fiber is prepared by melt extruding a composition including specific amounts of a polyamide and a polyphenylene ether along with a compatabilizer. Particular combinations produce fibers having a desirable combination of good tenacity and low denier per fiber. Compared to a fiber prepared from polyamide alone, the present fiber exhibits improved heat resistance and flame resistance.
摘要:
A fiber is prepared by melt extruding a composition including specific amounts of a polyamide and a polyphenylene ether along with a compatabilizer. Particular combinations produce fibers having a desirable combination of good tenacity and low denier per fiber. Compared to a fiber prepared from polyamide alone, the present fiber exhibits improved heat resistance and flame resistance.
摘要:
A polyamide-poly(arylene ether) composition is prepared by melt blending specific amounts of components including a polyamide, a poly(arylene ether), a hydrogenated block copolymer of an alkenyl aromatic monomer and a conjugated diene, a compatibilizing agent, and partially saponified ester of a C16-C36 aliphatic carboxylic acid and a C2-C12 aliphatic alcohol. The composition is useful for molding articles that have a significantly reduced incidence of the cosmetic defect known as “silver streaks”.
摘要:
Thermoplastic resin composition are provided that comprise a thermoplastic resin and an amount of antioxidant effective to increase the adhesion of paint to an article made from the composition. Also provided are methods to improve the paint adhesion of articles wherein the articles have been subjected to a temperature of at least about 330° F. for period of at least about 10 minutes. In a preferred embodiment, the antioxidant, also known as a stabilizer, or mixture of stabilizers is selected from the group consisting of the phenolic antioxidants, the 3-arylbenzofuranones, the hindered amine stabilizers, the ultraviolet light absorbers, the alkaline metal salts of fatty acids, the hydrotalcites, the epoxydized soybean oils, the hydroxylamines, the tertiary amine oxides, thermal reaction products of tertiary amine oxides, the thiosynergists, and mixture containing at least one of the foregoing.