摘要:
An optical film, suitable or use in, or as a component of, an image display device or apparatus (for example, a LCD device or a polarizer assembly), comprises a hydrogenated vinyl aromatic/conjugated diene block copolymer that has a near zero optical retardation at all light incidence angles (measured using incident light at a wavelength of 633 nanometers).
摘要:
Optically clear polymeric films, especially films fabricated from a hydrogenated vinyl aromatic block copolymer, that have a birefringence of from 0.001 to 0.05 and a retardation of from 25 nanometers to 500 nanometers, either as fabricated or as oriented post fabrication, function as, for example, optical compensation films or a layer in a multilayer film as an optical compensator for a display.
摘要:
A lens-forming thermoplastic composition of matter has a crystallinity, as determined in accord with differential scanning calorimetry of from 0 percent to less than 1 percent when the composition comprises a hydrogenated vinyl aromatic/isoprene block copolymer or a crystallinity, as determined in accord with differential scanning calorimetry of from more than 0 percent to less than 1 percent when the composition comprises a hydrogenated vinyl aromatic/butadiene block copolymer. The composition has a birefringence, measured at a wavelength of 633 nanometers, within a range of from 0 to less than 6×10. Molding a melt of these compositions occurs at temperatures within a range from the hydrogenated block copolymer's glass transition minus 20° C. to the glass transition temperature minus 90° C. The compositions suitably form lenses such as an optical pick-up lens, which may be aspherical or have at least one of an irregular surface configuration, a non-uniform thickness or an irregular and non-uniform cross-section.
摘要:
A thermoplastic, hydrogenated vinyl aromatic/conjugated diene block polymer composition, especially a hydrogenated styrene/butadiene triblock composition, functions well as a LED encapsulating material in that it provides one or more of optical clarity, thermal stability, ultraviolet light resistance, melt-processability and injection-moldability. The resulting LED resists deformation after setting or hardening under typical solder reflow conditions.
摘要:
The present invention is a bulk light diffuser material based upon a hydrogenated block copolymer, but including a particulate light diffusing component. The material may be in the form of a film, a sheet or a molded article. When present as a sheet having a thickness of 2 millimeters, the sheet has a percent total transmittance of at least 50% and a haze of at least 70%, measured according to the American Society for Testing and Materials (ASTM) standard D 1003.
摘要:
The present invention is a bulk light diffuser material based upon a hydrogenated block copolymer, but including a particulate light diffusing component. The material may be in the form of a film, a sheet or a molded article. When present as a sheet having a thickness of 2 millimeters, the sheet has a percent total transmittance of at least 50% and a haze of at least 70%, measured according to the American Society for Testing and Materials (ASTM) standard D 1003.
摘要:
A thermoplastic, hydrogenated vinyl aromatic/conjugated diene block polymer composition, especially a hydrogenated styrene/butadiene triblock composition, functions well as a LED encapsulating material in that it provides one or more of optical clarity, thermal stability, ultraviolet light resistance, melt-processability and injection-moldability. The resulting LED resists deformation after setting or hardening under typical solder reflow conditions.
摘要:
The invention provides polyolefin blend compositions of polar and/or non-polar polymers, with at least one functionalized polyolefin polymer selected from the group consisting of: amine functionalized, hydroxyl functionalized, imide functionalized, anhydride functionalized, or carboxylic acid functionalized polyolefin polymers. The invention also provides methods for making the functionalized polyolefin polymer. The invention also provides for materials and articles containing at least one component prepared from such compositions.
摘要:
In one aspect the invention provides a melt process for preparing a functionalized olefin multiblock interpolymer, said process comprising grafting onto the backbone of the olefin multiblock interpolymer at least one compound comprising at least one “amine-reactive” group to form a grafted olefin multiblock interpolymer, and reacting a primary-secondary diamine or an alkanolamine with the grafted olefin multiblock interpolymer, without the isolation of the grafted olefin multiblock interpolymer.
摘要:
The invention provides polyolefin blend compositions of polar and/or non-polar polymers, with at least one functionalized polyolefin polymer selected from the group consisting of: amine functionalized, hydroxyl functionalized, imide functionalized, anhydride functionalized, or carboxylic acid functionalized polyolefin polymers. The invention also provides methods for making the functionalized polyolefin polymer. The invention also provides for materials and articles containing at least one component prepared from such compositions.