Erasable optical disk having an improved optically transparent s

Details Erasable optical disk having an improved optically transparent s Erasable optical disk having an improved optically transparent s

1987-03-09

1992-06-02

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526321, C08F 2240

Patent

active

051187710

ABSTRACT:
An erasable optical disk having a grooved substrate which is made of a cured polymer product formed by radical polymerization of a composition comprising a specific type of (meth)acrylate compound alone or in combination with at least one compound selected from N-substituted maleimide compounds and epoxy-novolac (meth)acrylate compounds. The substrate has a good heat resistance, a good transparency, and can be produced at a high productivity.

REFERENCES:
patent: 3634379 (1972-01-01), Hauser
patent: 3640983 (1972-02-01), Horiguchi et al.
patent: 3663467 (1972-05-01), Albright
patent: 4427760 (1984-01-01), Nagazawa et al.
patent: 4555449 (1985-11-01), Koleske et al.
patent: 4591626 (1986-05-01), Kawai et al.
patent: 4592939 (1986-06-01), Temple et al.
patent: 4734477 (1988-03-01), Inoue et al.
CA 107(6): 41274P, Matsuo et al., Nov. 26, 1986, "Heat-Resistant Resins".

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