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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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Filing date
Publication date
Application filed by American Cyanamid CofiledCriticalAmerican Cyanamid Co
Priority to ES351429ApriorityCriticalpatent/ES351429A1/en
Publication of ES351429A1publicationCriticalpatent/ES351429A1/en
Process for the polymerization of a glycolide, characterized in that a mixture of an essentially pure glycolide composition, from about 0.05 to 1.5 mole%, based on the moles of said glycolide composition, of an unsaturated free alcohol is heated benzenoid and free of any reactive group other than an alcoholic hydroxy group, and from 0.0005% to about 0.025% by weight, based on the weight of said glycolide composition, of a polymerization catalyst for said glycolide composition, to a temperature that varies between about 205ºc and 235ºc until the equilibrium viscosity is virtually reached. (Machine-translation by Google Translate, not legally binding)
ES351429A1968-03-091968-03-09Procedure for the polymerization of a glycolide. (Machine-translation by Google Translate, not legally binding)
ExpiredES351429A1
(en)
Improvements introduced in the preparation of a thermoplastic polymer, finished in hydroside. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of 5-fluor-2-methyl-1- (p-metilsulfinilbenciliden) -3-indenil acetic acid. (Machine-translation by Google Translate, not legally binding)