Invention Grant
- Patent Title: Solvent composition and production method therefor
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Application No.: US16688209Application Date: 2019-11-19
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Publication No.: US11629237B2Publication Date: 2023-04-18
- Inventor: Shusuke Yoshihara
- Applicant: KANEKA CORPORATION
- Applicant Address: JP Osaka
- Assignee: KANEKA CORPORATION
- Current Assignee: KANEKA CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Osha Bergman Watanabe & Burton LLP
- Priority: JPJP2017-099852 20170519
- Main IPC: C08J3/09
- IPC: C08J3/09 ; C08J5/24 ; C08L33/10 ; C08L83/04 ; C08L25/04 ; C08F22/40 ; C08F20/06 ; C08F12/08

Abstract:
A solvent composition includes an organic solvent including one or more organic solvents (A) and one or more organic solvents (B), and one or more types of core-shell polymer particles each comprising a core layer and a shell layer. The organic sol vents (A) have a polar teen δp of a Hansen solubility parameter of less than 11 and a hydrogen bond term δh of less than 10, and the organic solvents (B) satisfy at least one of 11 or more of the polar term δp or 10 or more of the hydrogen bond term δh. A weight ratio of (A) to (B) ranges from 15:85 to 95:5. Based on a total weight of the solvent composition, a content of the core-shell polymer particles is 20 to 40% by weight and a water content is 1% by weight or less.
Public/Granted literature
- US20200095385A1 SOLVENT COMPOSITION AND PRODUCTION METHOD THEREFOR Public/Granted day:2020-03-26
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