Water-soluble copolymer having alkyl-modified carboxyl groups

Details Water-soluble copolymer having alkyl-modified carboxyl groups Water-soluble copolymer having alkyl-modified carboxyl groups

2006-11-13

2011-11-29

Wu, David W (Department: 1762)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S317100, C526S318400, C526S319000, C526S328000

Reexamination Certificate

active

08067517

ABSTRACT:
A water-soluble copolymer having alkyl-modified carboxyl groups which is able to produce a neutralized viscous liquid in which although its viscosity is very low when no electrolyte exists, the viscosity greatly increases when electrolytes are added, which has a sufficiently high viscosity and a very high transmittance and which has moist textures without stickiness even in the presence of a relatively high concentration of electrolytes, and a thickening agent comprising the same.

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