WATER-ABSORBING AGENT IN FORM OF PARTICLES, CONTAINING BASE COMPONENT IN FORM OF WATER-ABSORBING RESIN (VERSIONS), ABSORBING OBJECT BASED ON AGENT AND VERSIONS OF METHODS OF OBTAINING WATER-ABSORBING AGENT Russian patent published in 2008 - IPC C08L101/14 A61L15/00 

FIELD: chemistry.

SUBSTANCE: invention pertains to a water-absorbing agent in form of particles, which contains a water-absorbing resin as the base component, used in absorbing objects. Proposal is given of a resin, used in absorbing objects. Proposal is given of a water absorbing agent in form of particles, which retain excellent absorbing properties for a long period of time even when the composition of water is changed. The water absorbing agent consists of a water absorbing resin in form of particles, obtained through polymerisation with formation of transverse bonds of unsaturated monomer, containing a base component in form of acrylic acid, and is capable of retaining liquid after centrifugal treatment (CRC) in a normal saline solution of not less than 32g/g. The agent has mass-average size of particles (D50) from 200 to 400 mcm. The ratio of particles with diameter less than 150 mcm ranges from 0 to 2 wt %. The water absorbing agent has value of increasing content of extractable substances under destruction effect ranging from 0 to 15 wt %. Versions of the water absorbing agent and methods of obtaining it, as well as an absorbing object, are proposed.

EFFECT: design of a water absorbing agent with improved extraction characteristics.

22 cl, 7 tbl, 30 ex