| 摘要 |
<p>The disclosure is directed to a method and apparatus for homogenously mixing of colorant easily and reliably into a polyol, aqueous solution, or polymer. In the practice of the invention, almost any colorant or dye can be employed. One use of the invention employs polymeric colorant. The colorant is deployed in-line to a polymer as the polymer is pumped along a conduit. The polymer may be stored in the colored state, or stored uncolored. Use of the invention may avoid the undesirable and costly procedure of applying colorant directly into blending vessels. Thus, in the practice of the invention, blending vessels may remain uncolored, which is advantageous.</p> |
