Silanol compositions and methods of use
Assignee3M Innovative Properties Company
InventorsJun Ma, Naiyong Jing, Moses M. David
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Abstract
Described herein are compositions including a silanol compound that is suitably synthesized, stored, and coated from an aqueous solution. Once coated and cured on a suitable surface, the aqueous silanol compositions result in cleanable and abrasion resistant surfaces, such as dry-erase surfaces that release permanent marker by rubbing with a dry cloth or towel. Also disclosed herein are methods of making the silanol compounds, methods of making cleanable substrates, and cleanable substrates suitably formed using the disclosed methods.
Claims18
A silanol compound having the structure
- Yp—X—Zq
- wherein
- Y is [(R1O)i R2j Si], each R1 is hydrogen, each R2 is independently an alkyl group having 1 to 6 carbons, i is an integer between 1 and 3, j is an integer between 0 and 2, and i+j=3;
- Z is [N(R3)(R4)—(CH2)m—C(G1a)-G2b] wherein each G1 is independently selected from H and OH and each G2 is independently selected from SO3, OSO3, CO2, or a protonated or salt form thereof, a is 0 to 2, b is 1-2, and a+b=3, R3 is hydrogen or an alkyl, aryl, or alkaryl group having 1 to 18 carbons, R4 is an electron pair that is uncoordinated or is coordinated to a hydrogen atom, and m is an integer between 2 and 10;
- p and q are independently integers having a value of 1 to 1000, further wherein the ratio of p:q is between 2:1 and 1:10;
- each of p moieties Y is the same or different, and each of q moieties Z is the same or different;
- and
- X is a linking group comprising covalent bonds linking one or more moieties Y to one or more moieties Z;
- or a structure corresponding to one of the following structures 17, 18, or 19 or a protonated form thereof or a salt thereof:
A silanol compound, which is any of compound 1 through compound 21:
Dependencies are inferred from the claim text.