Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1995-11-27
1997-08-19
Mosley, Terressa
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525433, 525434, 525354, 525467, 528176, 528196, 528203, 528204, 528272, 528332, 560 40, C08L 6900, C08L 7700
Patent
active
056589956
ABSTRACT:
Random block copolymers having the formula: ##STR1## wherein R.sub.1 is --CH.dbd.CH-- or (--CH.sub.2 --).sub.j, in which j is zero or an integer from one to eight; R.sub.2 is selected from hydrogen, straight and branched alkyl and alkylaryl groups containing up to 18 carbon atoms and derivatives or biologically and pharmaceutically active compounds covalently bonded to said copolymer; each R.sub.3 is independently an alkylene group containing up to 4 carbon atoms; y is an integer between about 5 and about 3000; and f is the percent molar fraction of alkylene oxide in the copolymer and ranges between about 1 and about 99 mole percent. Implantable medical devices and drug delivery implants containing the random block copolymers are also disclosed, along with methods for drug delivery and for preventing the formation of adhesions between injured tissues employing the random block copolymers. Polyarylate random block copolymers are also described.
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Kohn Joachim B.
Yu Chun
Mosley Terressa
Rutgers The State University
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