Claims
- 1. A polymer containing units on the basis of (meth)-acrylic acid derivative of a triisocyanate of the formula ##STR8## in which R.sup.1 and R.sup.2 are identical or different and respresent hydrogen or a lower alkyl radical,
- R.sup.3, R.sup.4 and R.sup.5 are identical or different and denote hydrogen or methyl,
- Y.sup.1 to Y.sup.3 are identical or different and denote divalent straight-chain or branched hydrocarbon radicals, having 2 to 15 carbon atoms, which may contain 1 to 3 oxygen bridges and can be substituted by 1 to 4 additional (meth)-acryloyl-oxy radicals, and
- the rings A and B are identical or different and can be aromatic or saturated.
- 2. A composition according to claim 1, in which
- R.sup.1 represents hydrogen,
- R.sup.2 represents hydrogen or an alkyl radical having 1 to 4 carbon atoms,
- R.sup.3 R.sup.4 and R.sup.5 are identical or different and denote hydrogen or methyl,
- Y.sup.1 to Y.sup.3 are identical or different and denote divalent straight-chain or branched aliphatic hydrocarbon radicals, having 2 to 10 carbon atoms, which may contain 1 or 2 oxygen bridges and which can be substituted by 1 or 2 additional (meth)-acryloyloxy radicals,
- ring B is aromatic or saturated, and ring A is saturated.
- 3. A composition according to claim 1, in which
- R.sup.1 represents hydrogen,
- R.sup.2 represents hydrogen or methyl,
- R.sup.3, R.sup.4 and R.sup.5 are identical or different and denote hydrogen or methyl,
- Y.sup.1 to Y.sup.3 are identical or different and denote divalent straight-chain or branched aliphatic hydrocarbon radicals, having 2 to 10 carbon atoms, which may contain 1 or 2 oxygen bridges and can be substituted by 1 or 2 additional (meth)-acryloyloxy radicals, and
- rings A and B are saturated.
- 4. A composition for forming artificial teeth, coating agents for teeth and filling material for tooth restorations comprising a (meth)-acrylic acid derivative of a triisocyanate according to claim 1, comonomers and optionally an inorganic and/or organic filler.
- 5. A composition according to claim 1 wherein the inorganic filler comprises an amporphous and/or crystalline SiO.sub.2 or mixtures thereof with a X-ray absorbing silicate.
- 6. An artificial tooth comprising a polymer according to claim 1.
- 7. A tooth restoration comprising a polymer according to claim 1.
- 8. In the filling of a tooth wherein the tooth is filled with a composition comprising a polymerizable monomer and a polymerization catalyst and the composition is permitted to polymerize, the improvement wherein said monomer is a (meth)-acrylic acid derivative of a triisocyanate of the formula ##STR9## in which R.sup.1 and R.sup.2 are identical or different and represent hydrogen or a lower alkyl radical,
- R.sup.3, R.sup.4 and R.sup.5 are identical or different and denote hydrogen or methyl,
- Y.sup.1 to Y.sup.3 are identical or different and denote divalent straight-chain or branched hydrocarbon radicals, having 2 to 15 carbon atoms, which may contain 1 to 3 oxygen bridges and can be substituted by 1 to 4 additional (meth)-acryloyl-oxy radicals, and
- the rings A and B are identical or different and can be aromatic or saturated.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3636189 |
Oct 1986 |
DEX |
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Parent Case Info
This is a division, of application Ser. No. 106,091 filed October 7, 1987, now U.S. Pat. No. 4,868,325.
US Referenced Citations (4)
Number |
Name |
Date |
Kind |
4400159 |
Orlowski et al. |
Aug 1983 |
|
4603189 |
Knofel et al. |
Jul 1986 |
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4675437 |
Knofel et al. |
Jun 1987 |
|
4744828 |
Winkel et al. |
May 1988 |
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Foreign Referenced Citations (1)
Number |
Date |
Country |
0173085 |
Jul 1985 |
EPX |
Divisions (1)
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Number |
Date |
Country |
Parent |
106091 |
Oct 1987 |
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