The damping performance of an article and a polycarbonate composition is improved and a storage medium for data is provided with a glass transition temperature greater than about 150Â C.
Data Storage Media Containing Transparent Polycarbonate Blends
Ramesh Hariharan - Malden MA Gary Charles Davis - Albany NY Marc Brian Wisnudel - Clifton Park NY
Assignee:
General Electric Company - Niskayuna NY
International Classification:
C08L 6900
US Classification:
525146, 525439, 525462, 428 647, 428412
Abstract:
The invention relates to transparent blends of polymers suitable for use in optical articles; the polymers contain residues of BCC and its derivatives, and have properties particularly suited for use in high density optical data storage media. The polymers further contain residues of other polymers, such as -methyl polystyrene and polystyrene derivatives; bisphenols, such as bisphenol A; cycloaliphatic polyester resins, such as PCCD and its derivatives or some combination of each.
John F. Graf - Ballston Lake NY, US Eugene G. Olczak - Glenville NY, US Grant Hay - Evansville IN, US Ramesh Hariharan - Cambridge MA, US Philippe Schottland - Evansville IN, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
G01D011/28
US Classification:
362 26, 362 31, 362558
Abstract:
The invention features a bulk light diffuser material. The bulk light diffuser material may be a sheet or film comprising about 95 to about 99. 8 percent by weight of polycarbonate and about 0. 2 to about 2. 5 percent by weight of a particulate light diffusing component, based on the total weight of the polycarbonate and the light diffusing particles. The sheet material has a percent transmittance of at least 70% and a haze of at least 10% measured according to the American Society for Testing and Materials (ASTM) standard D 1003.
Data Storage Media Containing Transparent Polycarbonate Blends
Ramesh Hariharan - Malden MA, US Gary Charles Davis - Albany NY, US Marc Brian Wisnudel - Clifton Park NY, US
Assignee:
General Electric Company - Niskayuna NY
International Classification:
C08L069/00
US Classification:
428 647, 428412, 525462
Abstract:
The invention relates to transparent blends of polymers suitable for use in optical articles; the polymers contain residues of BCC and its derivatives, and have properties particularly suited for use in high density optical data storage media. The polymers further contain residues of other polymers, such as α-methyl polystyrene and polystyrene derivatives; bisphenols, such as bisphenol A; cycloaliphatic polyester resins, such as PCCD and its derivatives or some combination of each.
Data Storage Media Containing Transparent Polycarbonate Blends
Ramesh Hariharan - Malden MA, US Gary Charles Davis - Albany NY, US Marc Brian Wisnudel - Clifton Park NY, US
Assignee:
General Electric Company - Niskayuna NY
International Classification:
C08L069/00
US Classification:
428 647, 428412, 525146
Abstract:
The invention relates to transparent blends of polymers suitable for use in optical articles; the polymers contain residues of BCC and its derivatives, and have properties particularly suited for use in high density optical data storage media. The polymers further contain residues of other polymers, such as α-methyl polystyrene and polystyrene derivatives; bisphenols, such as bisphenol A; cycloaliphatic polyester resins, such as PCCD and its derivatives or some combination of each.
Data Storage Media Containing Transparent Polycarbonate Blends
Ramesh Hariharan - Malden MA, US Gary Charles Davis - Albany NY, US Marc Brian Wisnudel - Clifton Park NY, US
Assignee:
General Electric Company - Niskayuna NY
International Classification:
C08L069/00
US Classification:
428 647, 428412, 525133, 525146, 525462
Abstract:
The invention relates to transparent blends of polymers suitable for use in optical articles; the polymers contain residues of BCC and its derivatives, and have properties particularly suited for use in high density optical data storage media. The polymers further contain residues of other polymers, such as α-methyl polystyrene and polystyrene derivatives; bisphenols, such as bisphenol A; cycloaliphatic polyester resins, such as PCCD and its derivatives or some combination of each.
Ramesh Hariharan - Malden MA, US Thomas Feist - Clifton Park NY, US Grant Hay - Niskayuna NY, US Kathryn Longley - Saratoga Springs NY, US Wit Bushko - Niskayuna NY, US Irene Dris - Clifton Park NY, US Azar Alizadeh - Saratoga Springs NY, US
A method for determining the water strain of an article is provided in the present invention by predetermining a maximum tilt range and radius for the article. Further embodiments of the present invention include a storage medium for data and a polymer for use in a storage medium for data where the storage medium comprises a plurality of layers wherein the aforementioned water strain is calculated for the plurality of layers.
Data Storage Media Containing Transparent Polycarbonate Blends
Ramesh Hariharan - Malden MA, US Gary Davis - Albany NY, US Marc Wisnudel - Clifton Park NY, US
International Classification:
C08F008/00
US Classification:
525/146000
Abstract:
The invention relates to transparent blends of polymers suitable for use in optical articles; the polymers contain residues of BCC and its derivatives, and have properties particularly suited for use in high density optical data storage media. The polymers further contain residues of other polymers, such as -methyl polystyrene and polystyrene derivatives; bisphenols, such as bisphenol A; cycloaliphatic polyester resins, such as PCCD and its derivatives or some combination of each.
Dr. Hariharan graduated from the Kilpauk Med Coll, Dr M G R Med Univ, Madras, Tn, India in 1984. He works in The Woodlands, TX and specializes in Clinical Cardiac Electrophysiology and Cardiovascular Disease. Dr. Hariharan is affiliated with CHI St Lukes The Woodlands Hospital and Memorial Hermann Southeast Hospital.