Alkali metal acrylate or ammonium acrylate polymer excellent in

Details Alkali metal acrylate or ammonium acrylate polymer excellent in Alkali metal acrylate or ammonium acrylate polymer excellent in

1980-11-21

1982-07-20

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

525343, 525383, 526216, 526240, 526311, C08F22006

Patent

active

043407064

ABSTRACT:
An alkali metal acrylate polymer obtained by suspending an aqueous solution of acrylic acid and an alkali metal acrylate in an alicyclic or aliphatic hydrocarbon solvent containing a surfactant having an HLB value of 8-12 and subjecting the suspension to inverse suspension polymerization in the presence of a water-soluble radical polymerization initiator has a much higher water-absorbency and particularly salt solution-absorbency than known ones. If said polymer is crosslinked with a crosslinking agent, its stability in the fluid-absorbed state for a long period of time is improved and the absorption rate when absorbing water is also improved.

REFERENCES:
patent: 3284393 (1966-11-01), Vanderhoff et al.
patent: 3711323 (1973-01-01), Heap et al.
patent: 4093776 (1978-06-01), Aoki et al.
patent: 4189559 (1980-02-01), Bueltjer et al.

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