Method and device for the manufacture of a high optical quality

Details Method and device for the manufacture of a high optical quality Method and device for the manufacture of a high optical quality

1990-09-18

1991-07-16

Kight, III., John

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 76, 528 80, 528 85, 528499, C08G 1872

Patent

active

050326651

ABSTRACT:
A high optical quality polyurethane layer is manufactured by reactive pouring or reactive spraying of a reaction mixture comprising an aliphatic isocyanate component and a polyol component followed by a polymerization comprising the passage of the layer through a catalytic atmosphere containing at least one tertiary amine.

REFERENCES:
patent: 4408034 (1983-10-01), Kazama et al.
patent: 4595741 (1986-06-01), Kamatani et al.

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