Dicarboxylic acid compounds, inorganic particles treated with the dicarboxylic acid compounds, and compositions thereof
Assignee3M Innovative Properties Company
InventorsPaul B. Armstrong, Jonathan A. Anim-Addo, Bryan V. Hunt, Evan L. Schwartz
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Abstract
Described herein is a dicarboxylic acid compound of formula (I): Wherein: R3 comprises an aryl group, R2 is an alkylene group comprising 1 to 6 carbon atoms, n is 0 or 1, R1 is H or CH3, and X is S or NZ, wherein Z is H, an alkyl group comprising 1 to 4 carbon atoms or a phenyl group. Such compounds can be used to modify the surface of inorganic particles. These modified inorganic particles may then be advantageously used in polymerizable resins to increase the refractive index of the resulting composite, while enabling good flow properties of the polymerizable composition.
Claims19
A dicarboxylic acid compound of formula (I)
- wherein:
- R3 comprises a monovalent aromatic group,
- R2 is an alkylene group comprising 1 to 6 carbon atoms,
- n is 0 or 1,
- R1 is H or CH3, and
- X is S or NZ, wherein Z is H, an alkyl group comprising 1 to 4 carbon atoms, or a phenyl group.
A particle composition comprising a surface modified inorganic particle, wherein the surface of an inorganic particle is modified with a plurality of the following groups of Formula II:
- wherein
- R3 comprises an aryl group,
- R2 is an alkylene group comprising 1 to 6 carbon atoms,
- n is 0 or 1,
- R1 is H or CH3, and
- X is S or NZ, wherein Z is H or alkyl group comprising 1 to 4 carbon atoms or a phenyl group.
Dependencies are inferred from the claim text.