Visible light cured impression material

Dentistry – Prosthodontics – Impression taking or bite determination

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Details

522 28, 522 29, 522 65, 522 90, 522 79, 522 95, 522 83, 522 23, 523109, 524871, A61C 900, C08F 250, C08F 2036

Patent

active

047611367

ABSTRACT:
A dental impression material which comprises a pre-polymer formed by reacting a polyol or combination polyester polyol with a diisocyanate, and then with a hydroxyacrylate or hydroxymethacrylate; 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 arcylate moieties, is photo-polymerizable to yield a tear-resistant, highly flexible, medium-durometer elastomer, suitable for use as a dental impression material.

REFERENCES:
patent: 2532502 (1950-12-01), Joy
patent: 4089763 (1978-05-01), Dart et al.
patent: 4182829 (1980-01-01), Walkowiak et al.
patent: 4459193 (1984-07-01), Radcliffe et al.
patent: 4468202 (1984-08-01), Cohen
patent: 4551486 (1985-11-01), Tateosian
patent: 4553936 (1985-11-01), Wang

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