Lining material for acrylic dentures and method of preparing the

Details Lining material for acrylic dentures and method of preparing the Lining material for acrylic dentures and method of preparing the

1974-08-28

1976-07-13

Lieberman, Allan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

32 2, 260885, 260DIG36, A61C 1322, C08K 512, C08L 3102

Patent

active

039693031

ABSTRACT:
The present invention provides a lining material for a polymerized methylmethacrylate denture restoration which consists essentially of an admixture of approximately 40% of methylmethacrylate polymer, approximately 10% of methylmethacrylate monomer, and approximately 50% of butyl phthalyl butyl glycolate. The denture liner material is semi-cured for approximately 5 minutes at a temperature of about 160.degree.F. into a soft, tacky material having no inherent rigidity and which can be manually shaped to conform to an irregular object. The denture liner material can also be semi-cured for approximately 15 minutes at a temperature of 160.degree.F. into a somewhat hard material which is capable of being softened by application of heat and pressure. Both the soft semi-cured liner material and the somewhat hard semi-cured liner material are capable of being finally cured with a polymerized methylmethacrylate denture and adhered thereto to provide a soft liner therefor. The invention also provides methods for preparing the liner material and for adhering it to a polymerized methylmethacrylate denture.

REFERENCES:
patent: 2496387 (1950-02-01), Fink
patent: 2497451 (1950-02-01), Haefeli
patent: 2558139 (1951-06-01), Knock et al.

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