US 10,130,564 B2 · Dental polymerizable monomers

Abstract

Provided are dental polymerizable monomers that can give cured products having high toughness and high rigidity, dental polymerizable monomer compositions containing the polymerizable monomers, and dental compositions containing the dental polymerizable monomer compositions, and cured products thereof having high mechanical properties. The dental polymerizable monomer (A) which includes a urethane acrylate obtained from an appropriately rigid diisocyanate and an appropriately flexible hydroxyacrylate is used to prepare a dental polymerizable monomer composition containing the dental polymerizable monomer, and a dental composition containing the dental polymerizable monomer composition.

Claims9

Dependent claims

A dental polymerizable monomer (A) comprising a urethane acrylate that has at least one acryloyl group and is represented by the general formula (1) below:

wherein in the general formula (1), Ra is a group which has a divalent C6-9 aromatic hydrocarbon group or a divalent C6-9 bridged cyclic hydrocarbon group in the middle and is bonded to nitrogen atoms in adjacent carbamoyl groups via an unsubstituted methylene group;
Rb and Rc are each independently a C2-6 linear alkylene group or a C2-6 linear oxyalkylene group, each of which is optionally substituted with a C1-3 alkyl group or a (meth)acryloylmethylene group in place of a hydrogen atom;
and Rd represents a hydrogen atom or a methyl group.

Dependencies are inferred from the claim text.

Facts

Application

15/300,696Filed 31 Mar 2015

Priority

JP 2014-07263531 Mar 2014

Published

US 2017/0174621 A122 Jun 2017

Granted

20 Nov 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

A61K 6/887
Comprising natural or synthetic resins: compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
A61K 6/30
Preparations for dentistry: compositions for temporarily or permanently fixing teeth or palates, e.g. primers for dental adhesives
A61K 6/71
Comprising inorganic additives: fillers
A61K 6/79
Comprising inorganic additives: initiators

Dental polymerizable monomers

Life of this patent

Dental polymerizable monomers

Life of this patent

Abstract

Claims9