Ceramer composition and composite comprising free radically curable fluorochemical component
Assignee3M Innovative Properties Company
InventorsSoonkun Kang, George G. I. Moore, Thomas W. Rambosek
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Abstract
A ceramer composition is provided that comprises a plurality of colloidal inorganic oxide particles and a free-radically curable binder precursor. The free-radically curable binder precursor comprises a fluorochemical component that further comprises at least two free-radically curable moieties and at least one fluorinated moiety. By virtue of the inclusion of the fluorochemical component, the ceramer compositions of the present invention can be used to provide ceramer composites and ceramer composite structures with excellent stain, oil and/or water repellency characteristics as well as a high level of abrasion resistance and hardness.
Claims24
A free-radically curable ceramer composition comprising:
- (a) a plurality of colloidal inorganic oxide particles wherein said colloidal inorganic oxide particles are surface treated with a surface treatment agent comprising a curable silane component comprising a hydrolyzable silane moiety and a free-radically curable moiety, and
- (b) a free-radically curable binder precursor, wherein said free-radically curable binder precursor comprises a free-radically curable fluorochemical component comprising at least two free-radically curable moieties and at least one fluorinated moiety.
A free-radically cured ceramer composite, said composite being derived from ingredients comprising:
- (a) a plurality of surface treated colloidal inorganic oxide particles, and
- (b) a free-radically curable binder precursor, wherein said free-radically curable binder precursor comprises a free-radically curable fluorochemical component comprising at least two free-radically curable moieties and at least one fluorinated moiety wherein the weight ratio of the colloidal inorganic oxide particles to the free-radically curable binder precursor is from about 1:10 to about 1:1.5.
A ceramer composite structure, comprising:
- (a) a polymeric substrate having a coatable surface;
- (b) a free-radically cured ceramer composite provided on the surface of the substrate, said composite being derived from ingredients comprising:
- (i) a plurality of colloidal inorganic oxide particles, and
- (ii) a free-radically curable binder precursor, wherein said free-radically curable binder precursor comprises a free-radically curable fluorochemical component comprising at least two free-radically curable moieties and at least one fluorinated moiety, wherein the weight ratio of the colloidal inorganic oxide particles to the free-radically curable binder precursor is from about 1:0 to about 1:1.5.
A method of making a ceramer composite structure, comprising the steps of:
- (a) coating at least a portion of a substrate surface with a free-radically curable ceramer composition, wherein the free-radically curable ceramer composition comprises:
- (i) a plurality of colloidal inorganic oxide particles, and
- (ii) a free-radically curable binder precursor, wherein said free-radically curable binder precursor comprises a free-radically curable fluorochemical component comprising at least two free-radically curable moieties and at least one fluorinated moiety, wherein the weight ratio of the colloidal inorganic oxide particles to the free-radically curable binder precursor is from about 1:10 to about 1:1.5.
- (b) irradiating the coated substrate with an amount of curing energy under conditions effective to at least partially cure the coated free-radically curable ceramer composition, whereby the ceramer composite is formed on the substrate.
Dependencies are inferred from the claim text.