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US 12,589,056 B2Granted
Curable composition for dental impression
AssigneeDENTSPLY SIRONA Inc.
InventorsMassimo Rossi, Alberto Basso, Lorenzo Galliera
Life of this patent
Estimating the term…
Abstract
The present describes a curable composition for dental impression comprising: a curable base composition and a surfactant system comprising a first surfactant, which is at least one compound having the formula (I) and a second surfactant, which works synergistically with the second surfactant so as to permit the composition to surprisingly have a lower contact angle; these results are reached with relatively low concentrations of biodegradable surfactants.
Claims14
A curable composition for dental impression comprising:
- a curable base composition and
- a surfactant system comprising a first surfactant, which is at least one compound having the following formula (I)
- wherein R are each, independently of one another, a C1-C4 aliphatic;
- each R1 is, independently of the others, a C1-C6 aliphatic;
- each R2 is, independently of the others, selected from a group consisting of:
- H and C1-C3 aliphatic;
- each R3 is selected, independently of the others, from a group consisting of:
- H and C1-C4 aliphatic;
- x is an integer from 0 to 5;
- y is an integer from 1 to 10;
- a is an integer from 1 to 30;
- b is an integer from 0 to 5;
- and a second surfactant, which is at least one compound having the following formula (II):
- wherein R4 is selected from a group consisting of:
- R5 is selected from a group consisting of:
- and
- R6 is selected from a group consisting of:
- wherein k, j, z, r, d and t are each, independently of one another, an integer from 1 to 10;
- q is an integer from 1 to 100;
- Rf are each, independently of one another, a C1-C6 fluorine containing alkyl;
- and Rf are each, independently of one another, selected from a group consisting of:
- CF3—CF2—CF2—O—CF(CF3)—CH2— and CF3—(CF2)e—(CH2)f-, wherein e is an integer from 1 to 7 and f is an integer from 1 to 10,
- wherein the curable composition comprises from approximately 0.1% to approximately 7% in weight, with respect to approximately the total weight of the curable composition, of the first surfactant and from approximately 0.1% to approximately 7% in weight, with respect to the total weight of the curable composition, of the second surfactant,
- the curable composition further comprising from 0.1% to 3% in weight with respect to the total weight of the curable composition of a fluoro compound, which is at least one compound having a formula selected from the group consisting of the following formulae:
21 more elements
A curable composition for dental impression comprising:
- a curable base composition
- a surfactant system comprising a first surfactant, which is at least one compound having the following formula (I)
- wherein R are each, independently of one another, a C1-C4 aliphatic;
- each R1 is, independently of the others, a C1-C6 aliphatic;
- each R2 is, independently of the others, selected from a group consisting of:
- H and C1-C3 aliphatic;
- each R3 is selected, independently of the others, from a group consisting of:
- H and C1-C4 aliphatic;
- x is an integer from 0 to 5;
- y is an integer from 1 to 10;
- a is an integer from 1 to 30;
- b is an integer from 0 to 5;
- and
- a second surfactant, which is at least one compound having the following formula (IX):
- wherein Rfii represents a C1-C6 fluorine containing alkyl;
- R7 represents a C1-C4 alkyl;
- Ra represents a C1-C3 alkyl;
- Rb represents a C1-C3 alkyl;
- Rc is selected in the group consisting of:
- a C1-C6 aliphatic, a C1-C6 alkoxy;
- Rp represents a C1-C6 alkyl;
- ax is an integer from 1 to 10;
- ay is an integer from 1 to 10;
- aa is an integer from 0 to 20;
- ab is an integer from 0 to 20;
- ac is an integer from 1 to 20;
- ae is an integer from 0 to 1;
- with the proviso that when Rc is an alkoxy, ae is 1, and when Rc is an alkyl, ae is zero;
- and
- a fluoro compound, which is at least one compound having a formula selected from the group consisting of:
- wherein xx is an integer from 2 to 10;
- m is an integer from 1 to 20;
- n is an integer from 0 to 200;
- Rd are each, independently of one another, selected from a group consisting of:
- —F, —CF3.
32 more elements
A curable composition, for use in taking a mold of at least a part of a mouth, comprising:
- a curable base composition and
- a surfactant system comprising a first surfactant, which is at least one compound having the following formula (I)
- wherein R are each, independently of one another, a C1-C4 aliphatic:
- each R1 is, independently of the others, a C1-C6 aliphatic;
- each R2 is, independently of the others, selected from a group consisting of;
- H and C1-C3 aliphatic;
- each R3, is selected, independently of the others, selected from a group consisting of:
- H and C1-C4 aliphatic:
- x is an integer from 0 to 5:
- v is an integer from 1 to 10:
- a is an integer from 1 to 30;
- b is an integer from 0 to 5;
- and
- a second surfactant, which is at least one compound having the following formula (II):
- wherein R4 is selected from a group consisting of:
- R5 is selected from a group consisting of:
- and
- R6 is selected from a group consisting of:
- wherein k, j, z, r, d and t are each, independently of one another, an integer from 1 to 10;
- q is an integer from 1 to 100;
- Rf are each, independently of one another, a C1 to C6 fluorine containing alkyl;
- and Rf are each, independently of one another, selected from a group consisting of:
- CF3—CF2—CF2—O—CF(CF3)—CH2— and CF3—(CF2)e—CH2)f, wherein e is an integer from 1 to 7 and f is an integer from 1 to 10;
- a fluoro compound, which is at least one compound having a formula selected from the group consisting of:
- wherein xx is an integer from 2 to 10;
- m is an integer from 1 to 20;
- n is an integer from 0 to 200;
- Rd are each, independently of one another, selected from a group consisting of:
- —F, —CF3;
- wherein the curable composition comprises from approximately 0.1% to approximately 7% in weight, with respect to approximately the total weight of the curable composition, of the first surfactant and from approximately 0.1% to approximately 7% in weight, with respect to the total weight of the curable composition, of the second surfactant.
27 more elements
A method of taking an impression comprising contacting a curable composition with at least a part of a mouth, the composition comprising a curable base composition and a surfactant system comprising a first surfactant, which is at least one compound having the following formula (I)
- wherein R are each, independently of one another, a C1-C4 aliphatic;
- each R1 is, independently of the others, a C1-C6 aliphatic;
- each R2 is, independently of the others, selected from a group consisting of:
- H and C1-C3 aliphatic;
- each R3 is selected, independently of the others, from a group consisting of:
- H and C1-C4 aliphatic;
- x is an integer from 0 to 5;
- y is an integer from 1 to 10;
- a is an integer from 1 to 30;
- b is an integer from 0 to 5;
- and a second surfactant, which is at least one compound having the following formula (II):
- wherein R4 is selected from a group consisting of:
- R5 is selected from a group consisting of:
- and
- R6 is selected from a group consisting of:
- wherein k, j, z, r, d and t are each, independently of one another, an integer from 1 to 10;
- q is an integer from 1 to 100;
- Rf are each, independently of one another, a C1-C6 fluorine containing alkyl;
- and Rf are each, independently of one another, selected from a group consisting of:
- CF3—CF2—CF2—O—CF(CF3)—CH2— and CF3—(CF2)e—CH2)f, wherein e is an integer from 1 to 7 and f is an integer from 1 to 10;
- a fluoro compound, which is at least one compound having a formula selected from the group consisting of:
- wherein xx is an integer from 2 to 10;
- m is an integer from 1 to 20;
- n is an integer from 0 to 200;
- Rd are each, independently of one another selected from a group consisting of:
- —F, —CF3,
- wherein the curable composition comprises from approximately 0.1% to approximately 7% in weight, with respect to approximately the total weight of the curable composition, of the first surfactant and from approximately 0.1% to approximately 7% in weight, with respect to the total weight of the curable composition, of the second surfactant.
24 more elements
Dependencies are inferred from the claim text.