The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 2003
Filed:
Aug. 23, 2001
Philip John Allan Ritchie, Balaclava, AU;
Algirdas Kazimieras Serelis, Mount Waverley, AU;
Bruce Leary, Port Melbourne, AU;
Orica Australia Pty Ltd, Melbourne, AU;
Abstract
The invention relates to the use of a diacyl peroxide in combination with an aromatic amine of formula (I) where R is C -C alkyl having at least one hydroxy substituent or —(CH′CHR′—O) H where n is 1 to 10 and each R′ is independently selected from H and C -C alkyl; R is C -C alkyl optionally substituted with one or more hydroxy groups, or —(CHR′CHR′—O) H where n=1 to 10; and each R is independently selected from H and C -C alkyl; and Ar is an optionally substituted aryl group; as a redox initiating system in a process for the manufacture of polyester granules by suspension polymerisation. This invention also relates to a process for preparing solid polyester granules using such a redox initiating system.