Invention Grant
- Patent Title: Non-micronized pigment for plastics application
- Patent Title (中): 非微粉化颜料用于塑料应用
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Application No.: US13829357Application Date: 2013-03-14
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Publication No.: US09267039B2Publication Date: 2016-02-23
- Inventor: Modasser El-Shoubary , Lee Chris Mundle
- Applicant: Cristal Inorganic Chemicals Switzerland Ltd
- Applicant Address: CH Baar
- Assignee: Cristal Inorganic Chemicals Switzerland Ltd
- Current Assignee: Cristal Inorganic Chemicals Switzerland Ltd
- Current Assignee Address: CH Baar
- Main IPC: C09C1/36
- IPC: C09C1/36 ; C08J3/22 ; C08K9/04

Abstract:
A cost-effective process for loading particulate pigment into a polymer concentrate includes adding a basic pH aqueous solution having a water soluble organic salt to a milled particulate pigment to form an organic-coated particulate pigment. The pH of the basic aqueous solution is sufficiently basic that the water soluble organic salt remains in a salt form. Without a prior micronization step, the organic-coated particulate pigment is mixed with a polymer resin to form a polymer concentrate having from about 50% to about 87% by weight particulate pigment with dispersibility comparable to micronized organic-coated particulate pigment.
Public/Granted literature
- US20140275332A1 Non-Micronized Pigment for Plastics Application Public/Granted day:2014-09-18
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