Addition-fragmentation oligomers having high refractive index groups
US-2016346170-A1 · Dec 1, 2016 · US
Two-paste type sealer composition for root canal filling
US10307344B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10307344-B2 |
| Application number | US-201715431989-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 14, 2017 |
| Priority date | Feb 15, 2016 |
| Publication date | Jun 4, 2019 |
| Grant date | Jun 4, 2019 |
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Abstract
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To provide a two-paste type sealer composition for root canal filling consisting of a first paste containing a polymer (a) of an acid group-containing polymerizable monomer in which a portion or the entirety of the acidic group in a molecule forms a salt with an alkaline metal, a non-acid reactive powder (b) and water (c), wherein the pH of the first paste is in the range from 3.5 to 5.5, and a second paste containing an acid reactive inorganic powder (d), water (c) and a thickener (e), wherein, a cured product of a kneaded material of the first paste and the second paste comprises 3 to 20 part by weight of the polymer (a), 15 to 60 part by weight of the water (c), and 30 to 70 part by weight of the acid reactive inorganic powder (d).
First claim
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What is claimed is: 1. A two-paste type sealer composition for root canal filling, consisting of: a first paste containing a polymer (a) of an acid group-containing polymerizable monomer in which a portion or the entirety of the acidic group in a molecule forms a salt with an alkaline metal, a non-acid reactive powder (b) and water (c), wherein the pH of the first paste is in the range from 3.5 to 5.5, and a second paste containing an acid reactive inorganic powder (d), water (c) and a thickener (e), wherein, a cured product of a kneaded material of the first paste and the second paste comprises 3 to 20 part by weight of the polymer (a), 15 to 60 part by weight of the water (c), and 30 to 70 part by weight of the acid reactive inorganic powder (d). 2. The two-paste type sealer composition for root canal filling according to claim 1 , wherein, the polymer (a) is a polymer of α-β unsaturated carboxylic acid in which a portion or the entirety of the acidic group in a molecule forms a salt with an alkaline metal. 3. The two-paste type sealer composition for root canal filling according to claim 1 , wherein, the acid reactive inorganic powder (d) contains 50 part by weight or more of zinc oxide based on the whole amount of the acid reactive inorganic powder. 4. The two-paste type sealer composition for root canal filling according to claim 3 , wherein, the acid reactive inorganic powder (d) further contains 5 to 40 part by weight of an acid-reactive element-containing glass powder based on the whole amount of the acid reactive inorganic powder. 5. The two-paste type sealer composition for root canal filling according to claim 1 wherein, an operation surplus time at 23° C. is 10 minutes or more. 6. The two-paste type sealer composition for root canal filling according to claim 2 , wherein, the acid reactive inorganic powder (d) contains 50 part by weight or more of zinc oxide based on the whole amount of the acid reactive inorganic powder. 7. The two-paste type sealer composition for root canal filling according to claim 6 , wherein, the acid reactive inorganic powder (d) further contains 5 to 40 part by weight of an acid-reactive element-containing glass powder based on the whole amount of the acid reactive inorganic powder. 8. The two-paste type sealer composition for root canal filling according to claim 2 , wherein, an operation surplus time at 23° C. is 10 minutes or more. 9. The two-paste type sealer composition for root canal filling according to claim 3 , wherein, an operation surplus time at 23° C. is 10 minutes or more. 10. The two-paste type sealer composition for root canal filling according to claim 4 , wherein, an operation surplus time at 23° C. is 10 minutes or more. 11. The two-paste type sealer composition for root canal filling according to claim 6 , wherein, an operation surplus time at 23° C. is 10 minutes or more. 12. The two-paste type sealer composition for root canal filling according to claim 7 , wherein, an operation surplus time at 23° C. is 10 minutes or more.
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- What does patent US10307344B2 cover?
- To provide a two-paste type sealer composition for root canal filling consisting of a first paste containing a polymer (a) of an acid group-containing polymerizable monomer in which a portion or the entirety of the acidic group in a molecule forms a salt with an alkaline metal, a non-acid reactive powder (b) and water (c), wherein the pH of the first paste is in the range from 3.5 to 5.5, and a…
- Who is the assignee on this patent?
- Shofu Inc
- What technology area does this patent fall under?
- Primary CPC classification A61K6/889. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Jun 04 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).