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Polyolefin compositions for building materials
US2016244591A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016244591-A1 |
| Application number | US-201415025015-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 24, 2014 |
| Priority date | Sep 27, 2013 |
| Publication date | Aug 25, 2016 |
| Grant date | — |
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Abstract
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Polyolefin compositions useful for construction articles for outdoor use, for instance house siding, cladding, soffit or roofing. The compositions comprise a polyolefin substrate which has incorporated therein one or more additives selected from the group consisting of a) one or more ultraviolet light absorbers, b) one or more hindered amine light stabilizers and c) one or more antioxidants. Advantageously, the polyolefin substrate also has incorporated therein d) one or more colorants, e) one or more fillers, f) one or more flame retardants and optionally g) one or more antimicrobial compounds. The compositions exhibit certain performance levels according to standard tests, for example impact strength of >35 in-lb per ASTM D4226, coefficient of linear thermal expansion of <4.5×10E-05 in/in/ft per ASTM D696 and optionally acceptable color uniformity in finished siding parts per ASTM D6864 and/or acceptable low delta E color for the intended application per ASTM D2244 and/or a UL-94 V-1 or V-0 rating and/or a flame spread index of <200 according to ASTM E-84.
First claim
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1 . A polyolefin composition comprising a polyolefin substrate having incorporated therein one or more additives selected from a group comprising: a) one or more ultraviolet light absorbers, b) one or more hindered amine light stabilizers, or c) one or more antioxidants, wherein the composition exhibits impact strength of >35 in-lb measured according to ASTM D4226, coefficient of linear thermal expansion of <4.5×10E-05 in/in/ft measured according to ASTM D696 and optionally accept…
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- What does patent US2016244591A1 cover?
- Polyolefin compositions useful for construction articles for outdoor use, for instance house siding, cladding, soffit or roofing. The compositions comprise a polyolefin substrate which has incorporated therein one or more additives selected from the group consisting of a) one or more ultraviolet light absorbers, b) one or more hindered amine light stabilizers and c) one or more antioxidants. Ad…
- Who is the assignee on this patent?
- Basf Se
- What technology area does this patent fall under?
- Primary CPC classification C08K3/013. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Aug 25 2016 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).