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Us 6221146 by thisisonlymei27 is a document available to read on EtoBox.
What is Us 6221146 about?
The document describes a patented method for producing precipitated calcium carbonate (PCC) with a selected coarse crystalline form, useful for matte paper grades. The process involves preparing a suspension of calcium hydroxide, adding carbon dioxide to form PCC, concentrating the suspension, and adding a dispersing agent, all while optimizing conditions to enhance crystal quality. Key features include specific particle size ranges and surface area measurements to ensure the desired properties of the PCC p
- Author
- thisisonlymei27
- Language
- EN