A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
400/5515, 400/74
A61K 6/10 (2006.01) G03F 7/035 (2006.01)
Patent
CA 1311574
ABSTRACT OF THE DISCLOSURE A dental impression material which comprises a pre-polymer formed by reacting a polyol or polyester polyol, a diisocyanate, and a hydroxyacrylate or methacrylate; along with a metal catalyst, plasticizer, photosensitizer, reducing agent, filler and other additives. The essential characteristics of the polymer portion that makes the system work are that it is a long-chain aliphatic polyester-polyurethane molecule, which when endcapped with hydroxy acrylate moieties, is photo-polymerizable to yield a tear-resistant, highly flexible, medium-durometer elastomer, suitablefor use as a dental impression material.
540452
Groh Carole L.
Madhavan Narayanan
Probst Robert L.
Borden Ladner Gervais Llp
Groh Carole L.
Kerr Manufacturing Company
Madhavan Narayanan
Probst Robert L.
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