Organic compounds -- part of the class 532-570 series – Organic compounds – Isocyanate esters
Patent
1992-08-10
1993-10-05
Michl, Paul R.
Organic compounds -- part of the class 532-570 series
Organic compounds
Isocyanate esters
560 33, 560157, 560225, 560357, C07C26502, C07C27100
Patent
active
052507238
ABSTRACT:
A novel polymerizable monomer represented by the formula (I) useful as a raw material for the high surface hardness transparent resin. ##STR1## wherein R is an aliphatic residue having or not having an oxygen atom, an alicyclic ring, a heterocyclic ring or an aromatic ring, or an alicyclic residue, l is 0 or 1, each of i and j is an integer of 1 or more, and when l=0, i=j=1, when l=1, (i+j) is 4 or less, when j=1, X is oxygen or sulfur, when j.gtoreq.2, all X's are oxygen or sulfur, or one X is oxygen and the other X's are sulfur, or one X is sulfur and the other X's are oxygen.
The high surface hardness transparent resin comprises a crosslinked polymer prepared by copolymerizing a monomer (A) represented by the formula (I) as above and a monomer (B) containing one or more functional groups of at least one kind selected from the group consisting of CH.sub.2 .dbd.CH--C(O)--O--, CH.sub.2 .dbd.C(CH.sub.3)--C(O)--O-- and ##STR2##
REFERENCES:
patent: 4486582 (1984-12-01), Hefner, Jr.
patent: 4604439 (1986-08-01), Colvin et al.
Imai Masao
Kanemura Yoshinobu
Sasagawa Katsuyoshi
Suzuki Toshiyuki
Michl Paul R.
Mitsui Toatsu Chemicals Inc.
Yoon Tae H.
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