摘要:
Disclosed is an article for the optical storage of data having low birefringence prepared from a mixture of a polycarbonate and a cycloaliphatic polyester. The article may optionally have stabilization and mold release additives that retain transparency, color and processability.
摘要:
This disclosure relates generally to polysulfone compositions whose residual phenolic monomers or phenolic degradation products exhibit little or no estradiol binding activity. Also disclosed are methods for making the disclosed polysulfones and articles of manufacture comprising the disclosed polysulfones.
摘要:
This disclosure relates generally to polycarbonate compositions whose hydrolysis products and residual monomer content, if any, exhibit little or no estradiol binding activity. Also disclosed are methods for making the disclosed polycarbonates and articles of manufacture comprising the disclosed polycarbonates.
摘要:
Thermoplastic compositions comprising polyamide, polyimide, an organo phosphorus compound and an optional reinforcing filler are described. The subject compositions are useful in blow molding methods. A method of blow molding is also described as well as articles made by the method.
摘要:
A data storage medium includes a haze-prevention layer between a heat-resistant thermoplastic substrate and a reflective metal layer. The haze-prevention layer includes a metal having a tensile modulus of at least about 15×106 pounds per square inch. The data storage medium resists hazing of the reflective layer at elevated temperatures.
摘要:
The invention relates to a thermoplastic resin with improved impact strength comprising a) a thermoplastic polyether sulfone resin and b) glass fibers treated with a polyolefin wax. The polyolefin wax may be polyethylene wax, polypropylene wax, polyethylene-propylene wax, or polyethylene-butylene wax. The polyethersulfone resin glass blend has high modulus and improved impact strength.
摘要:
A molded article suitable for direct application of a reflective metal coating includes an amorphous thermoplastic or thermoplastic blend having a glass transition temperature greater than about 170° C. and at least one thermally stable colorant that contributes to the article's dark appearance. The article has excellent dimensional stability, and the surface to which a metal coating can be applied exhibits low gloss. Application of a metal coating to the molded article produces a metalized surface with high total reflectivity, low diffuse reflectivity, and low haze. Compositions and methods for forming the article are described.
摘要:
Polyester resins, optionally in combination with a polycarbonate, flame retarded with a halogenated bis-imide flame retardant agent and modified with a glass fiber reinforcing agent treated with a coating agent selected from certain polyepoxides and/or polyolefins exhibit markedly improved color characteristics.
摘要:
Compounds of Formula I ##STR1## wherein Z is an aromatic group, each R is individually selected from the group consisting of alkyl groups of from 1 to about 12 carbon atoms, thioalkyl groups of from 1 to about 12 carbon atoms, and halogen atoms, n is from 1 to about 6, and x is from 0 to 7, are suitable for use in preparing rubber latex particles. The rubbers are useful as substrates in graft copolymers and the resulting graft copolymers are suitable for use in thermoplastic blend compositions, particularly with transparent polymers. The rubber materials are advantageous in that they exhibit low glass transition temperatures and high refractive indices.
摘要:
Novel polyphenylene ether-polyamide compositions having improved compatibility, elongation and impact properties as well as improved processability are prepared comprising one or more polyphenylene ethers, one or more polyamides and a property improving silane derivative compound having in the molecule both (a) at least one silicon bonded to a carbon through an oxygen link and (b) at least one ethylenic carbon-carbon double bond or carbon-carbon triple bond and/or functional group selected from the group consisting of an amine group or a mercepto group, with the proviso that the functional group is not directly bonded to a silicon atom. These compositions may further comprise a polymeric impact modifier therefore and/or an inorganic reinforcing additive and/or other polymers including alkenyl aromatic polymers.