Dental curable composition
US-2019380918-A1 · Dec 19, 2019 · US
Dental resin composite material, method of producing dental resin composite material, and polyaryletherketone resin for producing dental resin composite material
US2019274931A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019274931-A1 |
| Application number | US-201716335069-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 12, 2017 |
| Priority date | Oct 13, 2016 |
| Publication date | Sep 12, 2019 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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A dental resin composite material is provided that is reduced in darkness of its color tone, and also reduced in burning and color unevenness. Specifically provided are a dental resin composite material including 100 parts by mass of a polyaryletherketone resin, 10 parts by mass to 300 parts by mass of inorganic particles, and 90 ppm or less of an impurity having an aromatic ring, a method of producing the dental resin composite material, and a polyaryletherketone resin for producing a dental resin composite material, to be used for producing the dental resin composite material.
First claim
Opening claim text (preview).
1 . A dental resin composite material, comprising: 100 parts by mass of a polyaryletherketone resin; 10 parts by mass to 300 parts by mass of inorganic particles; and 90 ppm or less of an impurity having an aromatic ring. 2 . A method of producing a dental resin composite material, comprising a step of mixing 100 parts by mass of a polyaryletherketone resin containing 150 ppm or less of an impurity having an aromatic ring and 10 parts by mass to 300 parts by mass of inorganic particles in a molten state. 3 . The method of producing a dental resin composite material according to claim 2 , wherein the polyaryletherketone resin containing 150 ppm or less of an impurity having an aromatic ring is produced at least through a step of subjecting polyaryletherketone resin powder containing the impurity having an aromatic ring to heating treatment in a temperature range of from a glass transition temperature of the polyaryletherketone resin powder or more to less than a melting point of the polyaryletherketone resin powder in a heat treatment apparatus while replacing a gas in the heat treatment apparatus. 4 . A polyaryletherketone resin for producing a dental resin composite material, to be used for producing a dental resin composite material including 100 parts by mass of a polyaryletherketone resin, 10 parts by mass to 300 parts by mass of inorganic particles, and 90 ppm or less of an impurity having an aromatic ring, the polyaryletherketone resin for producing a dental resin composite material comprising 150 ppm or less of the impurity having an aromatic ring.
Assignees
Inventors
Classifications
Leucite · CPC title
- A61K6/831Primary
comprising non-metallic elements or compounds thereof, e.g. carbon · CPC title
- A61K6/891Primary
Compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds · CPC title
comprising metals or alloys · CPC title
- A61K6/087Primary
Human Necessities · mapped topic
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- What does patent US2019274931A1 cover?
- A dental resin composite material is provided that is reduced in darkness of its color tone, and also reduced in burning and color unevenness. Specifically provided are a dental resin composite material including 100 parts by mass of a polyaryletherketone resin, 10 parts by mass to 300 parts by mass of inorganic particles, and 90 ppm or less of an impurity having an aromatic ring, a method of p…
- Who is the assignee on this patent?
- Tokuyama Dental Corp
- What technology area does this patent fall under?
- Primary CPC classification A61K6/831. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Thu Sep 12 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).