Back to results
US 2014/0228262 A1Published application
Composite particles and method of forming
Assignee3M Innovative Properties Company
InventorsJimmie R. Baran, JR., Haeen Sykora, Madeline P. Shinbach, Roxanne A. Boehmer, Daniel W. Wuerch
Life of this patent
Estimating the term…
Abstract
Composite particles and a method of forming composite particles are described. The composite particles comprise at least one inorganic nanoparticle covalently bound to at least one inorganic microparticle with a linking compound. Lubricant compositions and sprayable dispersion compositions comprising composite particles are also described.
Claims21
A composite particle comprising:
- at least one inorganic microparticle;
- at least one inorganic nanoparticle;
- and
- a linking compound covalently bonding said nanoparticle to said microparticle, the linking compound of the formula:
- Si(Z)n(R)m
- wherein
- each Z is independently selected from the group consisting of —OR′ and —X;
- wherein R′ is C1-C6 selected from linear, branched, and cyclic groups, or combinations thereof and optionally which may be substituted, and each X is a halide;
- each R is C1-C18 selected from linear, branched, and cyclic groups, or combinations thereof, or which may be substituted;
- n is 0 or 1;
- and m is 1 or 2.
8 more elements
A method of forming a composite particle comprising:
- providing a mixture of inorganic nanoparticles, a solvent, and at least one linking compound of the formula
- Si(Z)n(R)m
- each Z is independently selected from the group consisting of —OR′ and —X;
- wherein R′ is C1-C6 selected from linear, branched, and cyclic groups, or combinations thereof or which may be substituted, and each X is a halide;
- each R is C1-C18 selected from linear, branched, and cyclic groups, or combinations thereof, or which may be substituted;
- n is 2 or 3;
- and m is 1 or 2;
- agitating the mixture to provide nanoparticle precursors in which the linking compound is covalently bound to the nanoparticles;
- adding inorganic microparticles to the mixture;
- and
- reacting the microparticles and the mixture to covalently bind the nanoparticle precursors to the inorganic microparticles through the linking compound.
8 more elements
Dependencies are inferred from the claim text.