Powder coating compositions
US5470893A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1993 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | Jan 29, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29B2009/125
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Powder coating composition, prepared by process comprising the steps of providing a primary film-forming component and one or more other, different, components selected from film-forming components and non-film-forming components, each said component consisting of solid particles and each particle of said primary film-forming component comprising a solid polymeric binder system at least a portion of which is a film-forming resin in an amount sufficient to impart film forming properties to the composition, the particles of said other, different, components containing at least one substance that, when processed into a coating with said primary film-forming component, provides with said primary film-forming component said desired appearance or performance attribute to said coating, provided that, if the agglomerate contains a metallic or luster component and a fluidizable film-forming component, it also contains an incompatible film-forming component or a non-film-forming performance component, or two or more such components, and comminuting the components and mixing and agglomerating them to produce composite particles such that the composition is air fluidizable and can be applied t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.