Invention Grant
- Patent Title: Interfacial polymerization process for polycarbonate in injection molding manufacturing with use of sulfonic acid as a stabilizer
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Application No.: US16609934Application Date: 2018-06-15
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Publication No.: US11692076B2Publication Date: 2023-07-04
- Inventor: Tamara Marijke Eggenhuisen , Roland Sebastian Assink , Kazuhiko Mitsui , Robert Dirk van de Grampel , Mark van der Mee
- Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
- Applicant Address: NL Bergen Op Zoom
- Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
- Current Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
- Current Assignee Address: NL Bergen Op Zoom
- Agency: Cantor Colburn LLP
- International Application: PCT/IB2018/054440 2018.06.15
- International Announcement: WO2018/229730A 2018.12.20
- Date entered country: 2019-10-31
- Main IPC: C08K5/42
- IPC: C08K5/42 ; B29C45/00 ; C08G64/14 ; C08L69/00 ; B29K69/00
Abstract:
A composition includes a polycarbonate resin formed via an interfacial polymerization process and from 0.05 ppm to 50 ppm of a sulfonic acid. A molded article formed from the composition may exhibit a yellowness index that is less than that of a reference molded article formed from substantially similar polycarbonate composition comprising the polycarbonate resin but in the absence of the sulfonic acid. Methods for forming the molded article in accordance with the above are also described.
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