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:
A reflective article useful, for example, in automotive headlights 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 article resists hazing of the reflective layer at elevated temperatures.
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 reflective article useful, for example, in automotive headlights 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 article resists hazing of the reflective layer at elevated temperatures.
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:
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.
摘要:
Thermoplastic laminae are given scratch and mar resistance on an external face as well as protection from incompatible additives of adjacent adhesive layers on an internal face by a single cross-linked protective coating.
摘要:
The present invention provides a method and primer composition to increase the adherence of a polydiorganosiloxane-polycarbonate block copolymer lamina or layer to adjoining thermoplastic laminae or layers in a consolidated laminate or composite.
摘要:
A novel class of soluble organic nitrogen compounds which produces various colors when dissolved in organic liquid solvents. These dyes produce a color from blue to red if the organic liquid medium has a neutral or basic pH which reversibly changes to yellow if the liquid medium has an acid pH. The color variation can also serve as an indication of solvent polarity.
摘要:
Copolysiloxanecarbonate compositions are prepared by the reaction of a carbonate precursor such as phosgene with a mixture of bisphenols including a spirobiindane bisphenol, at least one of said bisphenols containing polydiorganosiloxane moieties. The reaction may take place in one step or sequentially. The products are characterized by low processing temperature, low orientational birefringence and high ductility.