Particles of carboxylated polymer

Details Particles of carboxylated polymer Particles of carboxylated polymer

2005-08-23

2005-08-23

Zalukaeva, Tatyana (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C528S193000, C528S317000, C528S318000, C528S318000

Reexamination Certificate

active

06933356

ABSTRACT:
Carboxyl group-containing polymer particles giving a neutralized viscous liquid being excellent in gel appearance and transparency. Carboxyl group-containing polymer particles comprising 55 to 94% by volume of water-swelled gel particles having a particle diameter of less than 50 μm when the carboxyl group-containing polymer particles are dispersed and swelled in water in a concentration of 0.5% by weight, and 6 to 45% by volume of water-swelled gel particles having a particle diameter of at least 50 μm when carboxyl group-containing polymer gel particles are dispersed and swelled in water in a concentration of 0.5% by weight.

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