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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goodyear Tire and Rubber Co
Original Assignee
Goodyear Tire and Rubber Co
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Filing date
Publication date
Application filed by Goodyear Tire and Rubber CofiledCriticalGoodyear Tire and Rubber Co
Priority to ES370188ApriorityCriticalpatent/ES370188A3/en
Publication of ES370188A3publicationCriticalpatent/ES370188A3/en
A process for preparing a polyester, especially characterized in that a glycol and a dicarboxylic acid are added, in the proportion of 1.7/1 to 1.05/1 of the glycol to the acid, to a low molecular weight polyester previously formed said glycol and acid, the mixture is heated and reacted at a temperature above the melting temperature of the low molecular weight polyester at a gauge pressure of 1.4 to 70.5 kg/cm2. (Machine-translation by Google Translate, not legally binding)
ES370188A1969-08-021969-08-02A procedure for preparing a polyester. (Machine-translation by Google Translate, not legally binding)
ExpiredES370188A3
(en)
Procedure for obtaining a new derivative of the 3,4,5 trimetoxibenzoic acid and its salts. (Machine-translation by Google Translate, not legally binding)
Procedure for obtaining a new derivative of the 3,4,5 trimetoxibenzoic acid and its salts. (Machine-translation by Google Translate, not legally binding)