Invention Grant
- Patent Title: Curable composition for producing a dental composite crown and process of production
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Application No.: US16622530Application Date: 2018-06-05
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Publication No.: US11696875B2Publication Date: 2023-07-11
- Inventor: Andreas Herrmann , Gioacchino Raia , Malte Korten , Oliver Kappler , Bernhard Hofmann , Adrian Eckert , Helmar Mayr , Reinhold Hecht , Gallus Schechner , Rainer Guggenberger
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee Address: US MN St. Paul
- Agency: 3M Innovative Properties Company
- Priority: EP 176014 2017.06.14
- International Application: PCT/US2018/036025 2018.06.05
- International Announcement: WO2018/231583A 2018.12.20
- Date entered country: 2019-12-13
- Main IPC: A61K6/887
- IPC: A61K6/887 ; A61C5/73 ; A61K6/77 ; A61K6/65 ; A61K6/76 ; A61K6/62 ; A61K6/17 ; C08L33/08 ; C08L33/10 ; C08L75/06

Abstract:
The invention relates to A curable composition for producing dental composite crowns, the composition comprising a resin matrix comprising polymerizable (meth)acrylate(s) not comprising a urethane moiety, polymerizable urethane(meth)acrylate(s), wherein the polymerizable (meth)acrylate(s) not comprising an urethane moiety are used in excess over the polymerizable urethane(meth)acrylate(s), a filler matrix comprising nanocluster(s), fumed silica in an amount below 8 wt. % with respect to the weight of the whole composition, an initiator system comprising photoinitiator(s), organic dye(s), the curable composition not comprising softener in an amount of more than 5 wt. % with respect to the weight of the whole composition, the curable composition having a viscosity below 150 Pa*s at 23° C. and a shear rate of 1 s−1. The invention also relates to a cured article obtained by radiation curing this curable composition by use of an additive-manufacturing method.
Public/Granted literature
- US20200206092A1 CURABLE COMPOSITION FOR PRODUCING A DENTAL COMPOSITE CROWN AND PROCESS OF PRODUCTION Public/Granted day:2020-07-02
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