Malic acid polymers

Details Malic acid polymers Malic acid polymers

1979-11-07

1981-05-05

Nielsen, Earl A.

Surgery

Truss

Pad

528323, 528359, 528361, C08G 6308, A61L 1700

Patent

active

042652472

ABSTRACT:
A polymer containing repeating units of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen, alkyl, aryl, aralkyl, substituted alkyl, substituted aryl, substituted aralkyl, R.sub.3 is hydrogen, alkyl or --CH.sub.2).sub.n COOR.sub.8 where n is an integer of 0 to 10, R.sub.6 is OR or NR.sub.4 R.sub.5, wherein R and R.sub.8 are independently hydrogen or a group derived from a compound containing esterifiable hydroxyl groups, R.sub.4 and R.sub.5 are independently alkyl, aryl, aralkyl, substituted alkyl, substituted aryl, substituted aralkyl or together comprise an alkylene group.

REFERENCES:
patent: 3268486 (1966-08-01), Klootwijk
patent: 3287325 (1966-11-01), Williams
patent: 3471454 (1969-10-01), Blume

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