Invention Grant
- Patent Title: Method for reducing plate-out of solid phosphites in polymers
- Patent Title (中): 减少聚合物中固体亚磷酸酯的平板化的方法
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Application No.: US12709883Application Date: 2010-02-22
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Publication No.: US08445567B2Publication Date: 2013-05-21
- Inventor: Donald Stevenson , Michael Jakupca , Nina Bersaglini
- Applicant: Donald Stevenson , Michael Jakupca , Nina Bersaglini
- Applicant Address: US OH Dover
- Assignee: Dover Chemical Corporation
- Current Assignee: Dover Chemical Corporation
- Current Assignee Address: US OH Dover
- Agency: Hahn Loeser & Parks LLP
- Main IPC: C08K5/52
- IPC: C08K5/52
Abstract:
A process is described which reduces the amount of bloom and/or plate-out of phosphite antioxidants during polymer processing by the addition of at least one polyethylene glycol (or blends thereof) or polycaprolactones (or blends thereof) having an average molecular weight of approximately 1,000 to 20,000, most preferably between 4,000 to 10,000.
Public/Granted literature
- US20100216923A1 METHOD FOR REDUCING PLATE-OUT OF SOLID PHOSPHITES IN POLYMERS Public/Granted day:2010-08-26
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