Process and dispensing system for preparing liquid concentrates for plastics
US6719453B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2001 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | Jun 18, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S366/605
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention provides a process for preparing a liquid concentrate for use in the manufacture of plastic parts (including without limitation, as part of the sampling, evaluation and approval process before a plastic part goes into production) comprising: (a) preparing one or more liquid intermediates, wherein the liquid intermediates comprise a liquid vehicle and at least one additive (which may include a pigment, dye or other additive); (b) standardizing the liquid intermediates; (c) transferring the standardized liquid intermediates to a remote location; and (d) dispensing the liquid intermediates to produce a liquid concentrate, wherein the quantity of each liquid intermediate dispensed is controlled according to a predetermined formula for the liquid concentrate. The present invention also provides a process for preparing a liquid concentrate for use in the manufacture of plastic parts comprising: (a) providing one or more liquid intermediates, wherein the liquid intermediates comprise a liquid vehicle and at least one additive (which may include a pigment, dye or other additive), wherein the liquid intermediates are standardized, and wherein the liquid intermediates have been…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.