Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1997-06-27
2000-02-22
Mosley, Terressa
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C08G 6926
Patent
active
060281634
ABSTRACT:
A process for making a high molecular weight poly(phosphoester) comprising the recurring monomeric units: ##STR1## wherein X is --O-- or --NR"--, where R" is H or alkyl; L is a divalent organic moiety, with the proviso that L cannot have the formula ##STR2## R' is H, alkyl, alkoxy, aryl, aryloxy, heterocyclic, or heterocycloxy; and n is from about 25 to 2000,
is described. The process comprises the steps of:
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Drost Patricia M.
Guilford Pharmaceuticals Inc.
Mosley Terressa
Nath Gary M.
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