Method of making thiol methacrylate or acrylate and a lens made

Details Method of making thiol methacrylate or acrylate and a lens made Method of making thiol methacrylate or acrylate and a lens made

1994-12-08

1996-03-26

Henderson, Christopher

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

351159, 359642, C08F 2802

Patent

active

055021417

ABSTRACT:
A thiol methacrylate or acrylate compound represented by the formula (1) or (2): ##STR1## wherein R.sup.1 is H or CH and X is selected from: ##STR2## wherein R.sup.1 is H or CH.sub.3 and m is an integer of 1 to 4. The thiol methacrylate or acrylate compound gives a resin having a high refractive index, a large Abbe number, and a good hardness and heat resistance, and giving little or no smell at processing.

REFERENCES:
patent: 4810812 (1989-03-01), Matsuda
patent: 4931521 (1990-06-01), Matsuda et al.
Chemical Abstracts, 215448, vol. 111, 1989.
Chem Abst, 111 (24), 215448(y) (1989).

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