Method of decreasing aldehyde content in a polymeric material
US10557017B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Aug 22, 2016 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Oct 8, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2203/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of decreasing aldehyde content in a polymeric material such as polyethylene terephthalate which includes contacting the polymeric material with a compound including first, second and third fragments each having a moiety and a moiety NH.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.