Curable compositions and methods for isolating a working area

Patent metadata

Field	Value
Publication number	US-10751264-B2
Application number	US-201515315530-A
Country	US
Kind code	B2
Filing date	Jun 8, 2015
Priority date	Jun 13, 2014
Publication date	Aug 25, 2020
Grant date	Aug 25, 2020

Abstract

The present application is directed to a curable composition and a method for isolating a working area in a patient's mouth. The curable composition can include a borate-crosslinked polysiloxane, at least one ethylenically unsaturated monomer comprising at least two polymerizable groups, and an initiator.

First claim

What is claimed is:

1. A curable composition, comprising:
a borate-crosslinked polysiloxane;
at least one ethylenically unsaturated monomer comprising at least two polymerizable groups; and
an initiator.

2. The curable composition of claim 1 , further comprising a silane other than the borate-crosslinked polysiloxane.

3. The curable composition of claim 2 , wherein the silane is unreactive towards any other components in the curable composition.

4. The curable composition of claim 2 , wherein the silane comprises a polymerizable group selected from the group consisting of an acrylate, a methacrylate, a vinyl, and an allyl group.

5. The curable composition of claim 2 , wherein the silane is a trialkoxysilane.

6. The curable composition of claim 5 , wherein the trialkoxysilane is O-(methacryloxyethyl)-N-(triethoxysilylpropyl)urethane, methacryloxypropyltrimethoxysilane, or combinations thereof.

7. The curable composition of claim 2 , wherein the silane does not react towards any other components of the curable composition upon curing of the curable composition.

8. The curable composition of claim 2 , wherein the silane is capable of reacting with one or more hydroxyl groups present on the borate-crosslinked polysiloxane.

9. The curable composition of claim 1 , wherein the borate-crosslinked polysiloxane comprises hydroxyl groups.

10. The curable composition of claim 1 , wherein the borate-crosslinked polysiloxane is derived from poly(dialkylsiloxane) with a molecular weight from about 1,000 g/mol to less than about 50,000 g/mol.

11. The curable composition of claim 1 , wherein the borate-crosslinked polysiloxane is derived from a boron-containing cross-linking reagent selected from the group consisting of boric acid, borate, borate esters, and derivatives and combinations thereof.

12. The curable composition of claim 1 , wherein the polymerizable groups of the at least one ethylenically unsaturated monomer comprising at least two polymerizable groups, are each independently selected from the group consisting of an acrylate, a methacrylate, a vinyl, and an allyl group.

13. The curable composition of claim 1 , wherein the at least one ethylenically unsaturated monomer comprises a polar functional group selected from the group consisting of a urethane group, a urea group, a hydroxyl group, or a charged group.

14. The curable composition of claim 13 , wherein the charged group is a quaternary ammonium group.

15. The curable composition of claim 1 , wherein the at least one ethylenically unsaturated monomer is a substituted or unsubstituted polysiloxane comprising at least two polymerizable groups.

16. The curable composition of claim 1 , wherein the at least one ethylenically unsaturated monomer is an ionic liquid.

17. The curable composition of claim 1 , wherein the at least one ethylenically unsaturated monomer has a calculated total solubility parameter of about 10.5 (cal/cc) 1/2 to about 12.0 (cal/cc) 1/2 , a calculated H-bonding component of greater than or equal to about 1.2 (cal/cc) 1/2 and a molecular weight greater than or equal to about 300 g/mol.

18. The curable composition of claim 1 , wherein the curable composition comprises a first and a second ethylenically unsaturated monomer, the first ethylenically unsaturated monomer comprising two polymerizable groups, the second ethylenically unsaturated monomer comprising one or two polymerizable groups.

19. A method for isolating a working area in a patient's mouth comprising:
providing the curable composition of claim 1 ,
molding the composition to provide a moldable isolation device having a shape;
positioning the isolation device inside the patient's mouth to isolate the working area; and
curing the isolation device.

20. The curable composition of claim 1 , wherein the at least one ethylenically unsaturated monomer comprising at least two polymerizable groups is a compound of the formula:
U—[—R 3 N—Z—NR 3 ]—{—(CO)(CO)—[NH—Y—SiR 1 2 —(OSiR 1 2 ) n —OSiR 1 2 —Y—NH—(CO)(CO)—] p —[—R 3 N—Z—NR 3 ]—} r —U

wherein each R 1 is independently an alkyl, haloalkyl, aralkyl, aryl, or aryl substituted with an alkyl, alkoxy, or halo;
each Y is independently a divalent alkylene, aralkylene, or a combination thereof;
each Z is independently a divalent or higher-valent polydiorganosiloxane, alkylene, aralkylene, heteroalkylene, or branched alkylene group;
each R 3 is hydrogen or alkyl or R 3 taken together with Z and with the nitrogen to which they are both attached forms a heterocyclic group;
each U is independently a free radically polymerizable group;
n is independently an integer of 0 to 1500;
p is an integer of 1 or greater; and
r is an integer of 1 or greater.

Assignees

• 3M Innovative Properties Co

Inventors

• Craig Bradley D
• Oxman Joel D
• Klun Thomas P
• Ross Richard B

Classifications

• A61K6/18

  causing dental retraction, e.g. compositions for widening the sulcus for making dental impressions or removing teeth · CPC title

• A61C5/82

  Dams; Holders or clamps therefor · CPC title

• C08L83/10

  Block- or graft-copolymers containing polysiloxane sequences (obtained by polymerising a compound having a carbon-to-carbon double bond on to a polysiloxane C08L51/08, C08L53/00) · CPC title

• A61K6/896 Primary

  Polyorganosilicon compounds · CPC title

• A61K6/887

  Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title