Dental plate liner

Patent metadata

Field	Value
Publication number	US-10299897-B2
Application number	US-201515107288-A
Country	US
Kind code	B2
Filing date	Jan 6, 2015
Priority date	Jan 10, 2014
Publication date	May 28, 2019
Grant date	May 28, 2019

Abstract

The dental plate liner includes: a paste (i) containing (A) a (meth)acrylic acid-based polymer, and a fluorine-containing (meth)acrylic acid-based polymerizable monomer in which (A) the (meth)acrylic acid-based polymer has a solubility of less than 20 mass %; and a paste (ii) containing a (meth)acrylic acid-based polymerizable monomer in which (A) the (meth)acrylic acid-based polymer has a solubility of 20 mass % or more, and a filler, in which at least one paste selected from the group consisting of the paste (i) and the paste (ii) contains a polymerization initiator, and in which the dental plate liner is used through mixing of the paste (i) and the paste (ii) immediately before use.

First claim

The invention claimed is:

1. A dental plate liner, comprising:
a paste (i) consisting essentially of:
(A) a non-cross-linked (meth)acrylic acid-based polymer, and
(B) a fluorine-containing (meth)acrylic acid-based polymerizable monomer in which (A) the (meth)acrylic acid-based polymer has a solubility of less than 20 mass %; and

a paste (ii) consisting essentially of:
(C) a (meth)acrylic acid-based polymerizable monomer, which does not contain fluorine and in which (A) the non-cross-linked (meth)acrylic acid-based polymer has a solubility of 20 mass % or more, and
(D) a filler, which is selected from the group consisting of a cross-linked polymer and an inorganic filler,
wherein the paste (ii) does not contain (A) the non-cross-linked (meth)acrylic acid-based polymer,
wherein at least one paste selected from the group consisting of the paste (i) and the paste (ii) contains (E) a polymerization initiator, and

wherein the dental plate liner is used through mixing of the paste (i) and the paste (ii) immediately before use.

2. A dental plate liner according to claim 1 , wherein the dental plate liner consists of the paste (i) and the paste (ii).

3. A dental plate liner according to claim 1 , wherein (B) the fluorine-containing (meth)acrylic acid-based polymerizable monomer in which (A) the (meth)acrylic acid-based polymer has a solubility of less than 20 mass % is represented by the following formula (I):
CH 2 ═CR 1 COOR 2 —Rf  (I)

in the formula (I), R 1 represents a hydrogen atom or a methyl group, R 2 represents an alkyl group having 1 to 20 carbon atoms, and Rf represents a fluoroalkyl group having 1 to 20 carbon atoms.

4. A dental plate liner according to claim 1 , wherein (D) the filler comprises (meth)acrylic acid-based cross-linked polymer particles.

5. A dental plate liner according to claim 1 , wherein the blending ratio ((A)/(C)) of (A) the (meth)acrylic acid-based polymer to (C) the (meth)acrylic acid-based polymerizable monomer in which (A) the (meth)acrylic acid based polymer has a solubility of 20 mass % or more is from 0.9 to 2.5.

6. A dental plate liner according to claim 1 , wherein the blending ratio ((A)/(C)) of (A) the (meth)acrylic acid-based polymer to (C) the (meth)acrylic acid-based polymerizable monomer in which (A) the (meth)acrylic acid based polymer has a solubility of 20 mass % or more is from 0.9 to 3.0.

7. A dental plate liner according to claim 1 , wherein the (B) (meth)acrylic acid-based polymerizable monomer is one in which (A) the (meth)acrylic acid-based polymer has a solubility of less than 5 mass % and the (C) (meth)acrylic acid-based polymerizable monomer is one in which (A) the (meth)acrylic acid-based polymer has a solubility of 50 mass % or more.

Assignees

• Tokuyama Dental Corp

Inventors

• Gyakushi Ayumu
• Matsushige Kouji

Classifications

• A61K6/35

  Preparations for stabilising dentures in the mouth · CPC title

• A61C13/0025 Primary

  Linings · CPC title

• A61K6/0026

  Human Necessities · mapped topic