Moisture curable compositions
US-2024400829-A1 · Dec 5, 2024 · US
Silsesquioxane-like particles
US9346975B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9346975-B2 |
| Application number | US-201314410332-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 18, 2013 |
| Priority date | Jun 29, 2012 |
| Publication date | May 24, 2016 |
| Grant date | May 24, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
Described herein is a method of making silsesquioxane-like particles using polyhydrosiloxanes and a water soluble base. The silsesquioxane-like particles have an average particle diameter of less than 100 micrometers and are substantially free of —OH bonds. In one embodiment, the silsesquioxane-like particles may be used in films.
First claim
Opening claim text (preview).
What is claimed is: 1. A composition comprising a particle, wherein the particle is derived from an aqueous solution comprising a water soluble base, and a polyhydrosiloxane. 2. The composition of claim 1 , wherein the polyhydrosiloxane is selected from: polymethylhydrosiloxane, polyethylhydrosiloxane, polypropylhydrosiloxane, polybutylhydosiloxane, polybenzylhydrosiloxane, methylhydrogen cyclosiloxane, and combinations thereof. 3. The composition of claim 1 , wherein the aqueous solution comprises a polar organic solvent and water. 4. The composition of claim 1 , wherein the polyhydrosiloxane is of the formula where Z 1 and Z 2 are endgroups; n is an integer greater than 2; and R is an organic group. 5. The composition of claim 4 , wherein R is an alkyl group. 6. The composition of claim 5 , wherein the alkyl group comprises at least one of methyl, ethyl, propyl, butyl, octyl, and phenyl. 7. The composition of claim 5 , wherein R comprises at least one halogen. 8. The composition of claim 5 , wherein R comprises at least one catenary heteroatom. 9. The composition of claim 1 , wherein the particle is substantially free of —OH bonds, meaning that when analyzed by FTIR, the peak area from 3100-3600 cm −1 divided by the total peak area from 500-4000 cm −1 has a ratio less than 2%. 10. A film comprising the composition of claim 1 . 11. The film of claim 10 , wherein the film is hydrophobic. 12. A composite comprising the composition of claim 1 .
Assignees
Inventors
Classifications
- C08L83/04Primary
Polysiloxanes · CPC title
- C09D183/00Primary
Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers · CPC title
Polysiloxanes · CPC title
containing silicon bound to hydrogen · CPC title
- C08L83/06Primary
containing silicon bound to oxygen-containing groups (C08L83/12 takes precedence) · CPC title
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- What does patent US9346975B2 cover?
- Described herein is a method of making silsesquioxane-like particles using polyhydrosiloxanes and a water soluble base. The silsesquioxane-like particles have an average particle diameter of less than 100 micrometers and are substantially free of —OH bonds. In one embodiment, the silsesquioxane-like particles may be used in films.
- Who is the assignee on this patent?
- 3M Innovative Properties Co
- What technology area does this patent fall under?
- Primary CPC classification C08L83/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 24 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).