Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1980-11-03
1983-04-26
Cockeram, H. S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
128260, 264310, 424 78, 521 53, 521163, 521905, 525453, 525440, 528 44, 604265, C08G 1883, A61M 2500, A61K 3174, C08G 7102
Patent
active
043813801
ABSTRACT:
There is provided a polymeric bacteriocidal composition comprising a thermoplastic, partially cross-linked polyurethane having --NH--(C.dbd.O)--O-- urethane linkages and/or urea linkages --NH--(C.dbd.O)--NH-- and iodine complexed with a sufficient number of these linkages to provide bacteriocidal properties to said composition. The polyurethane has an average molecular weight between 35,000 and 50,000, an ultimate elongation of 200 to 800% and a Shore A scale hardness of 60 to 95. The composition is shaped into a conventional medical appliance form, e.g. a catheter.
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Whittington's Dictionary of Plastics, 1st Ed., Technomic, Stamford, Conn., (1968), pp. 238-239.
LeVeen Eric G.
LeVeen Harry H.
LeVeen Robert F.
Rubricius Jeanette L.
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