Antimicrobial concentrates containing non-yellowing agents
US6852776B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2002 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Dec 31, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/015
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An antimicrobial concentrate is manufactured from a carrier, a non-yellowing agent, one or more antimicrobial agents and optionally one or more modifiers, the carrier having a modified ethylene polymer and optionally an olefin polymer, and method of producing the concentrate by producing the carrier, having the modified ethylene polymer and optionally the olefin polymer, then compounding the carrier with a non-yellowing agent, one or more antimicrobial agents and optionally one or more modifiers, to form the concentrate, which does not exhibit chalking and clumping of antimicrobial agent on the surface thereof. An antimicrobial blend that is manufactured from the antimicrobial concentrate, a resin and optionally an additive, and method of producing the blend by combining the concentrate with the resin. An antimicrobial product, containing a non-yellowing agent, that is formed by producing the blend then molding or extruding the blend to form the product, which provides for desired antimicrobial efficacy and does not exhibit either taste and odor issues associated with food and liquids meant for human consumption, due to leaching of the antimicrobial agent from the surface of the po…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.