Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1996-12-12
1998-12-22
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
525477, 525478, A61K 610
Patent
active
058520686
ABSTRACT:
A dental impression composition for use in the preparation of the oral tissue models comprising a dimethicone-based polysiloxane polyester polymer having terminal fluorinated alkoxy substituents such that the fluorine content of the polysiloxane polyester is in the range from about 5% to about 30% by weight, and having the general formula fluorinated alkoxy group having the formula F.sub.3 C(CF.sub.2).sub.n (CH.sub.2).sub.m O-- wherein n is an integer from 3 to 17 and m is an integer from 2 to 4; B is a diacid; and C is a dimethicone-based polysiloxane copolyol having the formula:
wherein Me is methyl, R is methyl or phenyl, o is an integer in the range from 1 to 19, q is an integer in the range from 0 to 200, and R.sup.1 is a polyoxyalkylene substituent having the formula
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Jeneric Pentron Incorporated
Marquis Melvyn I.
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