Compositions and methods for making clarified aesthetically enhanced articles
US8232335B2 · kind B2 · utility
2Cited by
2References
18Claims
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Assignee
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Key dates
| Filing date | Feb 7, 2006 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | Jun 18, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/1575
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Thermoplastic articles may be manufactured having a high degree of visual appeal to consumers. Clarifying agents may be employed as additives in such thermoplastic articles to produce high clarity articles. A coloring agent may be mixed with clarifying agents to form a first blend, and then such a first blend may be applied in very low loadings to form a clarified polymeric article. It is possible to achieve an observable visual benefit while using very low loadings of coloring agent in a polyolefin, such as polypropylene. Carbon black is a pigment that may provide such observable benefits in polypropylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.