Additive for laser-markable and laser-weldable polymer materials
US11618221B2 · kind B2 · utility
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7References
12Claims
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Key dates
| Filing date | Nov 20, 2017 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Jul 11, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/2241
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to an additive for laser-markable and/or laser-weldable polymer materials, and in particular to the use of pigments which comprise niobium-doped titanium dioxide as laser absorbing additive in polymer materials, to polymer materials which comprise a laser absorbing additive of this type and to a laser-marked or laser-welded product comprising at least one polymer material and niobium-doped titanium dioxide containing pigments as laser absorbing additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.