Process for the production of highly water absorptive polymers

Details Process for the production of highly water absorptive polymers Process for the production of highly water absorptive polymers

1991-08-19

1993-04-13

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 61, 526207, 5263031, 5263171, C08F 3004, C08F 224, C08F 232

Patent

active

052024008

ABSTRACT:
A process for producing a highly water absorptive polymer by polymerizing a water-soluble, ethylenically unsaturated monomer in a water-in-oil type of dispersion consisting of the dispersion phase of an aqueous monomer solution comprising the water-soluble, ethylenically unsaturated monomer, water, a water-soluble polymerization initiator and an optional water-soluble crosslinking agent and the continuous phase of an organic solvent containing a dispersant, characterized in that the aqueous monomer solution is added to the organic solvent at such a temperature as to form an oil-in-water type of dispersion, and the oil-in-water type of dispersion is then heated at least to a phase reversal temperature at which it is transformed into the water-in-oil type of dispersion.

REFERENCES:
patent: 4037040 (1977-07-01), Trapasso
patent: 4497930 (1985-02-01), Yamasaki
patent: 4880886 (1989-11-01), Kondo

Affiliated with

Also associated with

Rating

Process for the production of highly water absorptive polymers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the production of highly water absorptive polymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of highly water absorptive polymers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1156101