US Patent No: 5,276,098
Number of patents in Portfolio can not be more than 2000
Thermoplastic saturated norbornene group polymer composition
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Jan 4, 1994
Issued date -
Feb 3, 1992
filing date -
07/830,081
serial no -
In Force
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Abstract
A composition including a thermoplastic saturated norbornene group polymer and a partially etherified product of a polyhydric alcohol having at least 3 hydroxyl groups incorporated thereinto. The composition exhibits excellent adhesion to the recording film of an optical disk and adhesion to a hard coating film or a protective film formed by coating an acrylic ultraviolet curing coating material or like films without deteriorating the excellent heat resistance and transparency inherent to thermoplastic saturated norbornene group polymers. An optical disk substrate formed of this composition and an optical disk including the optical disk substrate and an information recording film and/or a light reflecting film and a protective film laminated thereon are also disclaimed.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,063,096 Optical disk | 12 | 1990 | |