Polymer surfaces for blood-contacting surfaces of a...

Details Polymer surfaces for blood-contacting surfaces of a... Polymer surfaces for blood-contacting surfaces of a...

C - Chemistry, Metallurgy

08

L

400/2008

C08L 101/00 (2006.01)

Patent

CA 1211878

1051-1 522D Abstract Of the Disclosure A polymer admixture is formed from at least 95 volume % of a base polymer and less than 5 volume % of a block polymer additive including a sequence of block segments represented by the formula [A][B][C], in which A is a poly(dialkylsiloxane), B is a hard block polymer segment with a crystalline melting point above 37°C or a glass transition temperature above 37°C, and C is a hydrophilic polymer selected from the group consisting of poly- ethylene oxide and polyethylene oxide-copolypropylene oxide. The additive is characterized by a component having a low critical surface tension but with a tendency to exude, as well as a com- ponent which lowers this tendency. The polymer admixture is suitable for forming into the exposed blood-contacting surface of a biomedical device. FA 35343-3/TOH/DJB DIV I

473726

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