| 发明名称 | Pigment dispersions | ||
| 摘要 | This invention relates to compositions that are dispersions of pigments in the form of premixes that may be used to color a variety of products such as plastics materials, inks and surface coatings and more particularly to compositions that are thixotropic. It also relates to premixes based on water soluble pigments that display Newtonian rheology. The compositions utilise water insoluble pigments having particle sizes that are less then about 10 microns. Both the thixotropic compositions and the Newtonian compositions include water soluble polyols and water. The pH of the premix may be adjusted to be in the range of 4-9 utilising acid or alkali as appropriate. | ||
| 申请公布号 | US9416278(B2) | 申请公布日期 | 2016.08.16 |
| 申请号 | US201214112470 | 申请日期 | 2012.04.19 |
| 申请人 | Saboori Farshid | 发明人 | Saboori Farshid |
| 分类号 | C09D5/04;C09C3/08;C09C1/32;C09C1/56 | 主分类号 | C09D5/04 |
| 代理机构 | Hoffman Patent Group | 代理人 | Hoffman David L.;Hoffman Patent Group |
| 主权项 | 1. A thixotropic premix composition comprising a tinctorially effective amount of one or more water insoluble pigments having a particle size of less than about 10 microns, one or more water soluble polyols and water, one or more water soluble alcohols, an antifoam, soya lecithin, one or more preservatives, and sufficient acid or alkali so that the premix has a pH in the range of from 4 to 9. | ||
| 地址 | Bonnyrigg AU | ||