Polymers of high melting lactide
First Claim
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1. A PROCESS FOR PRODUCING LACTIDE POLYMERS CAPABLE OF BEING FORMED INTO TOUGH, ORIENTABLE, SELF-SUPPORTING THIN FILMS WHICH COMPRISES HEATING LACTIDE HAVING A MELTING POINT OF MORE THAN 120* C. TO A TEMPERATURE ABOVE THE MELTING POINT AND BELOW 200* C. IN THE PRESENCE OF 0.02% TO 0.1%, BASED ON THE WEIGHT OF MONOMERIC MATERIAL PRESENT, OF A POLYVALENT METAL OXIDE UNTIL A POLYMER HAVING A "TACK" POINT OF 60* TO 130* C. IS FORMED.
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1 Claim
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1. A PROCESS FOR PRODUCING LACTIDE POLYMERS CAPABLE OF BEING FORMED INTO TOUGH, ORIENTABLE, SELF-SUPPORTING THIN FILMS WHICH COMPRISES HEATING LACTIDE HAVING A MELTING POINT OF MORE THAN 120* C. TO A TEMPERATURE ABOVE THE MELTING POINT AND BELOW 200* C. IN THE PRESENCE OF 0.02% TO 0.1%, BASED ON THE WEIGHT OF MONOMERIC MATERIAL PRESENT, OF A POLYVALENT METAL OXIDE UNTIL A POLYMER HAVING A "TACK" POINT OF 60* TO 130* C. IS FORMED.
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Current AssigneeAllan K. Schneider
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Original AssigneeAllan K. Schneider
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InventorsSchneider, Allan K.
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Application NumberUS03/230,079Time in Patent Office1,365 DaysField of SearchUS Class Current528/354CPC Class CodesC08G 63/08 Lactones or lactides
