Retention of PBO in polymer matrices by phthalocyanines
US8936801B2 · kind B2 · utility
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4References
23Claims
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Key dates
| Filing date | May 2, 2011 |
| Grant date | Jan 20, 2015 |
| Priority date | — |
| Expiry date | May 2, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N53/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
By incorporating PBO and phtalocyanine in a polymeric matrix, the surface concentration of the PBO after migration to the surface is reduced relatively to a matrix without phtalocyanine. This can be used to control the migration of PBO and retain PBO for a long-lasting effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.