Dentistry – Prosthodontics – Holding or positioning denture in mouth
Patent
1991-04-08
1991-10-08
Schofer, Joseph L.
Dentistry
Prosthodontics
Holding or positioning denture in mouth
524516, 5253276, A61C 1323
Patent
active
050550462
ABSTRACT:
This invention relates to superior bioadhesive compositions having time extended adhesive properties comprising a non-toxic carrier and a polymer having between about 45 and about 70 weight % of units having the structure ##STR1## between about 50 and about 30 weight % of units having the structure ##STR2## and 2 and 7 weight % of an amine salt containing a lactam functionality derived from A and/or B, wherein R is hydrogen, alkoxy, phenyl, carboxyl or --N lactam having from 3 to 6 carbon atoms; R.sub.1 is C.sub.1 to C.sub.6 alkylene and R.sub.2 is C.sub.2 to C.sub.4 alkylene; said copolymer having a number average molecular weight of about 40,000 to about 500,000 and a relatively small particle size. The invention also relates to the method of synthesizing and using the above composition.
REFERENCES:
patent: 3061569 (1962-10-01), Stoner et al.
patent: 3736274 (1973-03-01), Schoenholz et al.
Chaudhuri Ratan K.
Gangadharan Balgopal
Haldar Rama K.
ISP Investments Inc.
Maue Marilyn J.
Schofer Joseph L.
Walker Alex H.
Ward Joshua J.
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