Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
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Filing date
Publication date
Application filed by Matsushita Electric Works LtdfiledCriticalMatsushita Electric Works Ltd
Priority to JP5011876ApriorityCriticalpatent/JPS52133398A/en
Publication of JPS52133398ApublicationCriticalpatent/JPS52133398A/en
PURPOSE: To obtain phenol resins having a high softening point, by adding specific amounts of xylene resins and organic sulfonic acids to the reaction products for reacting with unreacted phenols.
COPYRIGHT: (C)1977,JPO&Japio
JP5011876A1976-04-301976-04-30Preparation of phenol resins
PendingJPS52133398A
(en)