Polymeric materials
US10815341B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Sep 16, 2016 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Apr 25, 2037 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F6/62
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A liquid formulation for addition to a polymeric material comprises a vehicle, an additive (e.g. a colourant) and carbonyl bis (1-caprolactan)). The liquid formulation may be used to colour melt spun fibre (e.g. PET or polyamide).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.