Composition for odor suppression
US11161091B2 · kind B2 · utility
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11References
13Claims
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Key dates
| Filing date | Feb 22, 2019 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Apr 29, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/006
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present disclosure provides a composition. In an embodiment, the composition includes (A) from 85 wt % to 99 wt % of an olefin-based polymer and (B) from 15 wt % to 1 wt % of an odor suppressant. The odor suppressant is a blend of (i) particles of zinc oxide, and (ii) zinc ionomer. The zinc oxide particles have a D50 particle size from 100 nm to 3000 nm, a surface area from 1 m2/g to 9 m2/g, and a porosity less than 0.020 m3/g. The composition has a methyl mercaptan odor suppression value of less than 70 at 3 days as measured in accordance with ASTM D5504-12.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.