US 2022/0087795 A1Published application

Curable composition for denture base

AssigneeTokuyama Dental Corporation

InventorsAyumu Gyakushi, Tatsuya Yamazaki

Life of this patent

Estimating the term…

Loading patent…

Abstract

A curable composition for a denture base is provided which comprises a paste-like composition containing (A) (meth)acrylic monomers, (B) a monomer-absorbing porous organic cross-linked polymer which can absorb the (A) (meth)acrylic monomers, and (C) a polymerization initiator selected from a photopolymerization initiator and a thermal polymerization initiator, wherein the content of (B) the monomer-absorbing porous organic cross-linked polymer is 20-80 parts by mass per 100 parts by mass of the (A) (meth)acrylic monomers, and the absorption amount: RAb={(g−A)/(g−B)}, measured in accordance with JIS K5101-13-1:2004, and defined by the amount of (A) (meth)acrylic monomers: g−A (unit: g) absorbed per unit amount of (B) the monomer-absorbing porous organic cross-linked polymer: g−B (unit: g) is greater than or equal to 1.5.

Claims8

Dependent claims

A denture base curable composition in a paste state, comprising:

(A) a (meth)acrylic monomer,
(B) a monomer-absorbing porous organic crosslinked polymer capable of absorbing the (meth)acrylic monomer (A), and
(C) a polymerization initiator selected from a photo-polymerization initiator and a thermal polymerization initiator,
wherein a content of the monomer-absorbing porous organic crosslinked polymer (B) is 20 to 80 parts by mass per 100 parts by mass of the (meth)acrylic monomer (A), and
wherein an absorption amount RAb representing an amount of the (meth)acrylic monomer (A) absorbed per unit amount of the monomer-absorbing porous organic crosslinked polymer (B) is 1.5 or more, with RAb being defined by the following equation:
RAb={(g−A)/(g−B)},
wherein g−A (unit:
g) represents an amount of the (meth)acrylic monomer (A) absorbed by the monomer-absorbing porous organic crosslinked polymer (B) in an amount of g−B (unit:
g), and RAb being measured according to JIS K5101-13-1:
2004.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/422,504Filed 24 Dec 2019
Priority: JP 2019-00480116 Jan 2019
Published: 24 Mar 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

A61C 13/01
Dental prostheses; Making same: palates or other bases or supports for the artificial teeth; Making same
A61C 8/0016
Characterised by the material or composition, e.g. ceramics, surface layer, metal alloy: polymeric material
A61K 6/887
Comprising natural or synthetic resins: compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
C08F 265/04
Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined…

Family

US 12,133,778 B2Related patent
US 2022/0087795 A1This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key