Powder-liquid type denture base lining material

Patent metadata

Field	Value
Publication number	US-10973740-B2
Application number	US-201716318610-A
Country	US
Kind code	B2
Filing date	Jul 20, 2017
Priority date	Jul 20, 2016
Publication date	Apr 13, 2021
Grant date	Apr 13, 2021

Abstract

The present invention provides a powder-liquid type denture base liner comprising: a powder material including (A) uncrosslinked resin particles, (B) an organic peroxide, (C) a pyrimidine trione derivative, and (D) an organic metal compound; and a liquid material including (E) a radical polymerizable monomer and (F) an aromatic amine compound, wherein the powder-liquid denture base liner is characterized in that the (C) pyrimidine trione derivative is 0.0002-1.0 mass parts per 100 mass parts of (E) radical polymerizable monomer.

First claim

The invention claimed is:

1. A powder-liquid type denture base lining material, comprising:
a powder material including:
(A) a non-crosslinked resin particles,
(B) an organic peroxide,
(C) a pyrimidinetrione derivative, and
(D) an organometallic compound; and
a liquid material including:
(E) a radical polymerizable monomer, and
(F) an aromatic amine compound,
wherein
the (C) pyrimidinetrione derivative is included in an amount of 0.0002 to 1.0 part by mass with respect to 100 parts by mass of the (E) radical polymerizable monomer,
a mass ratio of the (C) pyrimidinetrione derivative to the (B) organic peroxide is 0.001 to 0.1, and
the liquid material does not incorporate (G) an organic halogen compound.

2. The powder-liquid type denture base lining material according to claim 1 , wherein the (B) organic peroxide is included in an amount of 0.2 to 10 parts by mass, and the (D) organometallic compound is included in an amount of 0.000002 to 0.1 part by mass, with respect to 100 parts by mass of the (E) radical polymerizable monomer.

3. The powder-liquid type denture base lining material according to claim 1 , wherein the (E) radical polymerizable monomer has a molecular weight of 150 or more.

4. The powder-liquid type denture base lining material according to claim 1 , wherein the (C) pyrimidinetrione derivative is a compound represented by the following General Formula (1):

wherein under the condition that all of three R's are not hydrogen atoms, three R's each represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or a cycloalkyl group having 3 to 8 carbon atoms.

Assignees

• Tokuyama Dental Corp

Inventors

• Hitomi Miki
• Gyakushi Ayumu
• Nakashima Kei

Classifications

• A61K6/887

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

• A61K6/831

  comprising non-metallic elements or compounds thereof, e.g. carbon · CPC title

• A61K6/60 Primary

  comprising organic or organo-metallic additives · CPC title

• A61K6/00

  Preparations for dentistry · CPC title

• C08K5/3462

  Six-membered rings · CPC title