Composition for optical materials and use thereof

Details Composition for optical materials and use thereof Composition for optical materials and use thereof

1995-10-30

1997-07-29

Gorr, Rachel

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 85, 351159, C08G 1848

Patent

active

056523211

ABSTRACT:
A composition for optical materials is herein disclosed which comprises the following two components (a) and (b):
(a) a component containing at least one of poly isocyanates represented by the formula (1)

REFERENCES:
patent: 4689387 (1987-08-01), Kajinoto et al.
patent: 5475074 (1995-12-01), Matsuoka et al.
Lesiak & Maciejewski; Chem. & Applications Aliphatic Isocyanatos; J. Prakt, Chem. (1993) [abstract] 335(3), 294-6.
Kogyo Kagaky Zasshi 68(9), 1752-6(1965), "Synthesis of Polyamides Containing Disulfide Bonds".
Journal fur praktische Chemie Chemiker-Zeitung (1993), "Synthesis of Aliphatic Diisocyanates Containing Oxygen or Sulphur Bridge in Polymethylene Chain", Lesiak et al.
Chemical Abstract vol. 114: 237395t (1991), "High-reference-index plastic lens".
Chemical Abstract vol. 121:108012m (1994), "Preparation of polyisocyanates of hydrocarbons as optical materials".
Chemical Abstract vol. 112: 159987e, "Resin for plastic lenas and its preparation". (1988).
Chemical Abstract vol. 118: 14474z (1993), "Preparation of polyisocycanates as optical materials and products".
Chemical Abstract vol. 119: 140072a, "Heat-resistant polyisocyanates and optical materials and products using the same". (1993).

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