Claims
- 1. A composition of matter comprising a polymeric reaction product of a hydroxy terminated butadiene prepolymer having an average molecular weight of about 400 to 25,000 and containing 1 to 3 hydroxyl groups per molecule and a polyisocyanate reactant present in an amount to provide from 1.5 to 2.7 isocyanate groups for each hydroxyl group or active hydrogen site, and from 1 to 70% by weight of a fluoride ion containing compound capable of releasing fluoride ion.
- 2. A composition of matter as claimed in claim 1 wherein said fluoride ion compound is present in the amount of 5 to 50% by weight of the composition.
- 3. A composition of matter as claimed in claim 1 wherein said fluoride ion compound is disodium monofluorophosphate.
- 4. A composition of matter as claimed in claim 3 wherein about 5 to 15% of disodium monofluorophosphate is present.
- 5. A composition of matter as claimed in claim 3 wherein about 10% of disodium monofluorophosphate is present.
- 6. A composition of matter comprising a polymeric reaction product of a hydroxy terminated butadiene prepolymer having an average molecular weight of about 400 to 25,000 and containing 1 to 3 hydroxyl groups per molecule and a polyisocyanate reactant present in an amount to provide from 1.5 to 2.7 isocyanate groups for each hydroxyl group or active hydrogen site, and an aromatic polyol, wherein the aromatic polyol comprises at least 42 but not more than 60 percent of the hydroxyl components.
- 7. A composition of matter as claimed in claim 6 further comprising from 1 to 70% by weight of a fluoride ion containing compound capable of releasing fluoride ion.
- 8. A composition of matter as claimed in claim 6 wherein the aromatic polyol is N,N-bis(2-hydroxypropyl) aniline.
- 9. A composition of matter as claimed in claim 6 containing a silane coupling agent.
- 10. A composition of matter as claimed in claim 7 wherein said fluoride ion compound is present in the amount of 5 to 50% by weight of the composition.
- 11. A composition of matter as claimed in claim 7 wherein said fluoride ion compound is disodium monofluorophosphate.
- 12. A composition of matter as claimed in claim 11 wherein about 5 to 15% of disodium monofluorophosphate is present.
- 13. A composition of matter as claimed in claim 11 wherein about 10% of disodium monofluorophosphate is present.
- 14. A composition as claimed in claim 12 wherein the aromatic polyol is N,N-bis(2-hydroxypropyl)aniline.
BENEFIT OF PRIOR APPLICATION
This application is a continuation of application Ser. No. 146,466, filed May 24, 1971, and now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3427366 |
Verdol et al. |
Feb 1969 |
|
Non-Patent Literature Citations (1)
Entry |
Galligan, et al. J. of Dent. Res., vol. 47, No. 4, pp. 629-632, Aug. 1968. |
Continuations (1)
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Number |
Date |
Country |
Parent |
146466 |
May 1971 |
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