Information recording medium and adhesive composition therefor
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United States of America Patent
Stats
-
Mar 1, 1994
Issued Date -
N/A
app pub date -
Oct 22, 1992
filing date -
Aug 25, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An information recording medium formed by adhering, with an adhesive composition, two disk substrates to each other, at least one of the two disk substrates having a recording layer on at least one surface of a transparent resin substrate thereof and the adhesive composition comprising (1) the following components: (A) an .alpha.-olefin polymer, (B) an ethylene/(meth)acrylate copolymer, (C) a styrene-type polymer, and (D) a tackifier provided that at least one of the components (A) to (D) is modified with an unsaturated carboxylic acid or a derivative thereof, or (2) the following components: (A) an .alpha.-olefin polymer, (C) a styrene-type polymer, (D) a tackifier, and (E) fine filler particles.
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