Crosslinked polyetherurethane membranes useful in blood electrol

Details Crosslinked polyetherurethane membranes useful in blood electrol Crosslinked polyetherurethane membranes useful in blood electrol

1987-07-02

1988-05-10

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521176, 528 76, C08G 1848

Patent

active

047436298

ABSTRACT:
Partition membranes which are permeable to blood electrolytes fabricated from crosslinked polyetherurethane compositions having from 20 to 50% hard segments. The membranes absorb from 50 to 120% of their dry weight of water and have electrolyte diffusion constants of up to 1.times.10.sup.-6 cm.sup.2 /sec. The membranes are included in electrochemical, fiber optic and solid state blood electrolyte sensors to provide blood compatible surfaces and to ensure that blood components deleterious to analysis of electrolyte in the blood remain separated from the sensing elements.

REFERENCES:
patent: 3993576 (1976-11-01), Barron

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