Dental curable composition and dental flowable composite resin
US-9855196-B2 · Jan 2, 2018 · US
Dental curable composition and method of manufacturing same
US10441512B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10441512-B2 |
| Application number | US-201615553661-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 15, 2016 |
| Priority date | Mar 20, 2015 |
| Publication date | Oct 15, 2019 |
| Grant date | Oct 15, 2019 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A dental curable composition includes a polymerizable monomer, inorganic particles (A), and inorganic particles (B), wherein the inorganic particles (A) have a volume-median particle size of more than or equal to 0.1 μm and less than or equal to 0.9 μm and are surface-treated with a compound expressed by a general formula (1), the inorganic particles (B) have an average primary particle size of more than or equal to 5 nm and less than or equal to 50 nm, where at least one of a group expressed by a general formula (A) and a group expressed by a general formula (B) is present at surfaces of the inorganic particles (B), and the ratio of the mass of the inorganic particles (B) to the total mass of the inorganic particles (A) and the inorganic particles (B) is more than or equal to 0.02 and less than or equal to 0.05.
First claim
Opening claim text (preview).
The invention claimed is: 1. A dental curable composition comprising: a polymerizable monomer, inorganic particles (A), and inorganic particles (B), wherein the inorganic particles (A) have a volume-median particle size of more than or equal to 0.1 μm and less than or equal to 0.9 μm and are surface-treated with a compound expressed by a general formula (where R 1 is a hydrogen atom or a methyl group, R 2 is a hydrolyzable group, R 3 is a hydrocarbon group having 1 to 6 carbon atoms, p is 2 or 3, and q is an integer greater than or equal to 8 and smaller than or equal to 13), wherein the inorganic particles (B) have an average primary particle size of more than or equal to 5 nm and less than or equal to 50 nm, where at least one of a group expressed by a general formula (where R 4 and R 5 are independently a methyl group or an ethyl group) and a group expressed by a general formula (where R 6 , R 7 , and R 8 are independently a methyl group or an ethyl group) is present at surfaces of the inorganic particles (B), wherein a ratio of a mass of the inorganic particles (B) to a total mass of the inorganic particles (A) and the inorganic particles (B) is more than or equal to 0.02 and less than or equal to 0.05, wherein a ratio of a mass of the polymerizable monomer to the total mass of the inorganic particles (A) and the inorganic particles (B) is 0.25 to 0.5, and wherein an extrusion strength is less than or equal to 10 kgf. 2. The dental curable composition as claimed in claim 1 , wherein the dental curable composition is a flowable composite resin. 3. A method of manufacturing a dental curable composition, the method comprising: mixing a polymerizable monomer, inorganic particles (A), and inorganic particles (B), wherein the inorganic particles (A) have a volume-median particle size of more than or equal to 0.1 μm and less than or equal to 0.9 μm and are surface-treated with a compound expressed by a general formula (where R 1 is a hydrogen atom or a methyl group, R 2 is a hydrolyzable group, R 3 is a hydrocarbon group having 1 to 6 carbon atoms, p is 2 or 3, and q is an integer greater than or equal to 8 and smaller than or equal to 13), wherein the inorganic particles (B) have an average primary particle size of more than or equal to 5 nm and less than or equal to 50 nm, where at least one of a group expressed by a general formula (where R 4 and R 5 are independently a methyl group or an ethyl group) and a group expressed by a general formula (where R 6 , R 7 , and R 8 are independently a methyl group or an ethyl group) is present at surfaces of the inorganic particles (B), wherein a ratio of a mass of the inorganic particles (B) to a total mass of the inorganic particles (A) and the inorganic particles (B) is more than or equal to 0.02 and less than or equal to 0.05, wherein a ratio of a mass of the polymerizable monomer to the total mass of the inorganic particles (A) and the inorganic particles (B) is 0.25 to 0.5, and wherein an extrusion strength is less than or equal to 10 kgf. 4. The dental curable composition as claimed in claim 1 , wherein the inorganic particles (A) are spherical.
Assignees
Inventors
Classifications
comprising natural or synthetic resins · CPC title
- A61K6/84Primary
comprising metals or alloys · CPC title
Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title
with silicon-containing compounds · CPC title
Additives being defined by their particle size in general · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10441512B2 cover?
- A dental curable composition includes a polymerizable monomer, inorganic particles (A), and inorganic particles (B), wherein the inorganic particles (A) have a volume-median particle size of more than or equal to 0.1 μm and less than or equal to 0.9 μm and are surface-treated with a compound expressed by a general formula (1), the inorganic particles (B) have an average primary particle size of…
- Who is the assignee on this patent?
- G C Dental Ind Corp
- What technology area does this patent fall under?
- Primary CPC classification A61K6/84. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Oct 15 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).