Use of a composition for stabilizing a geological formation in oil fields, gas fields, water pumping fields, mining or tunnel constructions
US-10781353-B2 · Sep 22, 2020 · US
Polyurethane Foam For Use as Soil Improver
US2016115387A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016115387-A1 |
| Application number | US-201414895004-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 26, 2014 |
| Priority date | Jun 24, 2013 |
| Publication date | Apr 28, 2016 |
| Grant date | — |
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- Title
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Abstract
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Polyurethane foam flakes for use as additive to soil and/or other natural plant growth media for improving the water retention and/or reduction of the methane emission.
First claim
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1 . A plant growth substrate comprising soil and/or other natural growth media, and polyurethane foam flakes as additive wherein the polyurethane foam has a density of 25-100 kg/m 3 , a compression load deflection (CLD) at 40% of 5-50 kPa, a volume increase at water saturation of at most 25% and a water buffer capacity of 35-80% and wherein the flakes have dimensions in the range 0.1-100 mm. 2 . The plant growth substrate according to claim 1 , wherein the polyurethane foam has a CLD in the range 5-15 kPa, a free-rise core density of 25 up to 70 kg/m 3 , and a water buffer capacity of 40-60%. 3 . The plant growth substrate according to claim 1 , wherein the polyurethane foam has a CLD of at least 20 kPa, a free-rise core density of 20 up to 50 kg/m 3 , a resilience of at most 30% and the volume increase at water saturation is at most 20%. 4 . The plant growth substrate according to claim 1 , wherein the polyurethane foam has a resilience of at most 40%, a compression load deflection (CLD) at 40% of at least 16 kPa, a free-rise core density of at least 20 kg/m 3 , and a volume increase at water saturation of at most 25%. 5 . The plant growth substrate according to claim 1 , wherein the flakes have dimensions in the range of 1-50 mm. 6 . The plant growth substrate according to claim 1 , wherein the polyurethane flakes are coated with additives such as fertilizers or hardeners. 7 . The plant growth substrate according to claim 1 , wherein the flakes are present in the plant growth substrate in an amount of 15-60 volume % polyurethane flakes, when the volume % is calculated as volume flakes on the total volume of plant growth substrate comprising flakes. 8 . The plant growth substrate according to claim 1 , wherein the volume ratio of the foam flakes in the plant growth substrate is ranging from 10:90 to 90:10 (volume %), wherein the volume % is calculated as volume flakes on the total volume of plant growth substrate comprising flakes. 9 . (canceled) 10 . (canceled) 11 . (canceled)
Assignees
Inventors
Classifications
containing foam or presenting a foam structure · CPC title
Soil conditioners · CPC title
having hydroxy or primary amino groups · CPC title
and other oxyalkylene units · CPC title
containing only one alkylene bisphenyl group · CPC title
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- What does patent US2016115387A1 cover?
- Polyurethane foam flakes for use as additive to soil and/or other natural plant growth media for improving the water retention and/or reduction of the methane emission.
- Who is the assignee on this patent?
- Huntsman Int Llc
- What technology area does this patent fall under?
- Primary CPC classification C09K17/30. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Apr 28 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).