Polymeric composition containing carboxy nueutralized with lithi

Details Polymeric composition containing carboxy nueutralized with lithi Polymeric composition containing carboxy nueutralized with lithi

1990-05-07

1993-08-31

Henderson, Christopher

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253302, 536 56, 536102, C08F 2006, C08F 842

Patent

active

052410099

ABSTRACT:
A polymeric composition specifically adapted to absorb blood and other proteinaceous fluids and having repeating units, said polymeric composition comprising pendant neutralized carboxyl groups (salts) and pendant carboxyl groups. The polymeric composition is characterized in that the ratio of pendant neutralized carboxyl groups to pendant carboxyl groups is within the range of from about 1:9 to about 9:11, at least about 20 mole percent of the repeating units comprise a pendant neutralized carboxyl group or a pendant carboxyl group, and at least about 50 percent of the pendant neutralized carboxyl groups have been neutralized with a potassium or lithium base.

REFERENCES:
patent: 4173669 (1979-11-01), Ashida
patent: 4732721 (1988-03-01), Konno
patent: 4959061 (1990-09-01), Cabestany
patent: 5026784 (1991-06-01), Le-Khac

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