Invention Grant
- Patent Title: Stabilization of polymers with styrenated-p-cresols
- Patent Title (中): 用苯乙烯 - 对甲酚稳定聚合物
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Application No.: US12069631Application Date: 2008-02-11
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Publication No.: US08193260B2Publication Date: 2012-06-05
- Inventor: Michael E. Gelbin , Jonathan S. Hill , Maurice Power
- Applicant: Michael E. Gelbin , Jonathan S. Hill , Maurice Power
- Applicant Address: US CT Middlebury
- Assignee: Chemtura Corporation
- Current Assignee: Chemtura Corporation
- Current Assignee Address: US CT Middlebury
- Agent Joseph Suhadolnik
- Main IPC: B29B9/06
- IPC: B29B9/06

Abstract:
Disclosed herein is a process for the preparation of a mixture of styrenated p-cresol species that is liquid at room temperature and has a viscosity of less than 40,000 cps at 25° C., wherein said process affords 2,6-distyrenated p-cresol assaying at 70% minimum by GC area percent, comprising reacting styrene with p-cresol at a molar ratio of 1.85 to 2.1:1, respectively, in the presence of an acid catalyst at elevated temperature, wherein said mixture comprises monostyrenated-p-cresol, distyrenated-p-cresol, and tristyrenated-p-cresol and exhibits an acid number of less than 0.1 mg KOH/gram.
Public/Granted literature
- US20080207804A1 Stabilization of polymers with styrenated-p-cresols Public/Granted day:2008-08-28
Information query