摘要:
A data storage medium includes a substrate, a reflective metal layer, and a haze-prevention layer between the substrate and the reflective metal layer. The substrate includes an amorphous thermoplastic resin having a heat distortion temperature of at least about 140° C., a density less than 1.7 grams per milliliter, and an organic volatiles content less than 1,000 parts per million measured according to ASTM D4526. The haze-prevention layer includes a material having a volume resistivity of at least 1×10−4 ohm-centimeters and a tensile modulus of at least about 3×105 pounds per square inch. The data storage medium resists hazing of the reflective layer at elevated temperatures.
摘要:
A method is provided for upgrading rock in the form of aggregate, block, shaped stone or concrete structures involving the treatment of such rock with a dilute aqueous solution of polyelectrolyte and polyalkyleneglycol. Treated aggregate, portland cement and bituminous concrete compositions containing such treated aggregate are also provided.
摘要:
A method is provided for upgrading rock in the form of aggregate, block, shaped stone or concrete structures involving the treatment of such rock with a dilute aqueous solution of polyelectrolyte. Enhanced degradation resistance is achieved by further wetting the polyelectrolyte treated rock with a multi-valent ion metallic salt solution. Treated aggregate, portland cement and bituminous concrete compositions containing such treated aggregate are also provided.
摘要:
A blend comprising a polyalkylene terephthalate resin and an organopolysiloxane-polycarbonate block copolymer having improved impact and heat distortion properties. The polymer blends can be molded or formed into films, sheets, fibers, laminates, or other improved molded articles of manufacture including reinforced articles by conventional techniques.
摘要:
A primer composition is provided in the form of an aqueous-alcoholic reaction product of an amino alkyl polyalkoxysilane and an alkyl carbonate. There is also provided a composite of an organo silicon-polycarbonate block copolymer and a glass substrate, and a method for making such composite involving the treatment of the glass substrate with the above described primer composition.
摘要:
Multilayer plastic composite articles comprising a thermoplastic resin substrate which can be a polycarbonate, an ABS or ASA resin, a polyphenylene ether or polyphenylene ether/polystyrene blend , an polyester or an admixture of polycarbonate with ABS, ASA or polyester and at least one surface layer comprising a cyloaliphatic polyester or cycloaliphatic polyester blend which is adherent to at least one surface of the substrate. Decorative layers can be located between the substrate and the surface layers.
摘要:
A method of accelerating tests for the delayed failure of coatings and coated substrates caused by degradation is provided wherein the coated substrate is subjected to a controlled level of strain during testing.
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:
Safety or impact resistant laminates which avoid the application of heat and excessive pressure in their construction comprising a plurality of laminae, at least one interlayer interposed between any two of the laminae, and a sufficient number of adhesive layers, at least one a contact or pressure sensitive adhesive, to bond all the laminae and interlayers.