Filler containing composition and process for production and use thereof
Assignee3M Innovative Properties Company
InventorsChristoph Thalacker, Andreas A. Heumann
Life of this patent
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Abstract
The invention relates to a composition comprising an ethylenically unsaturated acidic compound, water, a functionalized silane, an initiator, optionally comprising a sensitising agent, a non-surface treated filler, optionally a solvent, optionally an ethylenically unsaturated compound, optionally additives selected from the group consisting of stabilizer(s), photobleachable colorant(s), fluoride release agent(s), pigments. The invention also relates to a process of producing such a composition by in-situ silanization of the non-surface treated filler.
Claims19
A method for producing a dental composition comprising the steps of
- (i) providing the following components:
- (a) about 3 to about 80 parts by weight of an ethylenically unsaturated acidic compound,
- (b) about 5 to about 40 parts by weight water,
- (c) about 1 to 10 parts by weight of a functionalized silane compound,
- (d) about 0.5 to about 10 parts by weight of an initiator,
- (e) from about 2 to about 20 wt % of a non-surface treated filler, and not more than about 20 wt % of other fillers
- (f) about 5 to about 40 parts by weight of a solvent other than water, and
- (g) about 0 to about 80 parts by weight, of a second ethylenically unsaturated compound being different from component (a);
- (ii) mixing the components of step (i) in a manner such that the functionalized silane compound reacts with the non-surface treated filler in-situ in the presence of the ethylenically unsaturated acidic compound to form an acidic dental composition;
- and
- (iii) applying the acidic dental composition to a surface of a tooth.
A method using an in-situ silanization process, the method comprising:
- (i) providing the following components:
- (a) about 3 to about 80 parts by weight of an ethylenically unsaturated acidic compound,
- (b) about 5 to about 40 parts by weight water,
- (c) about 1 to about 10 parts by weight of a functionalized silane compound,
- (d) about 0.5 to about 10 parts by weight of an initiator,
- (e) from about 2 to about 20 wt % of a non-surface treated filler, and not more than about 20 wt % of other fillers
- (f) about 5 to about 40 parts by weight of a solvent other than water,
- (g) about 0 to about 80 parts by weight, of a secong ethylenically unsaturated compound being different from component (a);
- (ii) mixing the components of step (i) in a manner such that the functionalized silane compound reacts with the non-surface treated filler in-situ to form an acidic dental composition;
- and
- (iii) applying the acidic dental composition to a surface of a tooth.
Dependencies are inferred from the claim text.