C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 75/02 (2006.01) C07D 339/06 (2006.01) C07D 339/08 (2006.01) C08G 18/12 (2006.01) C08G 18/38 (2006.01) C08G 18/48 (2006.01) C08G 18/66 (2006.01) C08G 18/67 (2006.01) C08G 75/06 (2006.01) C08G 75/10 (2006.01) C08L 75/06 (2006.01)
Patent
CA 2502710
The present invention relates to sulfide-containing polythiols and their methods of preparation.Sulfide-containing polythiols can have a variety of uses and applications. The sulfide-containing polythiols of the present invention can be especially useful in polyurethane compositions for the manufacture of ophthalmic lenses.
La présente invention concerne des polythiols à base de sulfures, ainsi que leurs procédés de préparation. Les polythiols à base de sulfures présentent diverses utilisations et applications possibles. Les polythiols à base de sulfures selon l'invention peuvent être utiles en particulier dans des compositions de polyuréthanne destinées à la fabrication de lentilles ophtalmiques.
Bojkova Nina
Smith Robert A.
Borden Ladner Gervais Llp
Ppg Industries Ohio Inc.
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