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Solid hydrophobic polymeric surfacing
US2018319970A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018319970-A1 |
| Application number | US-201815955023-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 17, 2018 |
| Priority date | May 8, 2017 |
| Publication date | Nov 8, 2018 |
| Grant date | — |
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- Title
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Abstract
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A solid surface comprises (i) from 45 to 80 volume fraction percent of polymethylmethacrylate or unsaturated polyester or a combination of both, (ii) from 25 to 55 volume fraction percent of inorganic filler particles distributed evenly throughout the solid surface, and (iii) from 0.75 to 8 volume fraction percent of a siloxane fluid, wherein, when the filler has a major dimension of from 30-50 micrometers, the siloxane has a molecular weight of from 40,000 to 150,000 or when the filler has a major dimension of from 10-15 micrometers, the siloxane has a molecular weight of from 25,000 to 100,000 or when or when the filler has a major dimension of from 1-10 micrometers, the siloxane has a molecular weight of from 5,000 to 100,000.
First claim
Opening claim text (preview).
What is claimed is: 1 . A solid surface comprising (i) from 45 to 80 volume fraction percent of polymethylmethacrylate or unsaturated polyester or a combination of both, (ii) from 25 to 55 volume fraction percent of inorganic filler particles distributed evenly throughout the solid surface, and (iii) from 0.75 to 8 volume fraction percent of a siloxane fluid wherein, when the filler has a major dimension of from 30-50 micrometers, the siloxane has a molecular weight of from 40,000 to 150,000 or when the filler has a major dimension of from 10-15 micrometers, the siloxane has a molecular weight of from 25,000 to 100,000 or when or when the filler has a major dimension of from 1-10 micrometers, the siloxane has a molecular weight of from 5,000 to 100,000. 2 . The surface of claim 1 wherein the filler is alumina trihydrate, alumina, talc, quartz or a micronized polymer. 3 . The surface of claim 1 wherein the siloxane fluid is a siloxane polymer with hydrocarbon substituents. 4 . The surface of claim 1 wherein the siloxane fluid is coated onto the surface of the filler. 5 . The surface of claim 1 further comprising either alone or in combination, a pigment, a coupling agent or a crosslinker. 6 . The surface of claim 3 wherein the siloxane polymer is polydimethylylsiloxane. 7 . The surface of claim 6 wherein the polydimethylylsiloxane is methyl-terminated polydimethylylsiloxane.
Assignees
Inventors
Classifications
containing Al · CPC title
Clay · CPC title
Homopolymers or copolymers of methyl methacrylate · CPC title
of aluminium · CPC title
Unsaturated polyesters having carbon-to-carbon unsaturation · CPC title
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- What does patent US2018319970A1 cover?
- A solid surface comprises (i) from 45 to 80 volume fraction percent of polymethylmethacrylate or unsaturated polyester or a combination of both, (ii) from 25 to 55 volume fraction percent of inorganic filler particles distributed evenly throughout the solid surface, and (iii) from 0.75 to 8 volume fraction percent of a siloxane fluid, wherein, when the filler has a major dimension of from 30-50…
- Who is the assignee on this patent?
- Du Pont
- What technology area does this patent fall under?
- Primary CPC classification C08L33/12. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Nov 08 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).