Process for the manufacture of highly disperse solids consisting

Details Process for the manufacture of highly disperse solids consisting Process for the manufacture of highly disperse solids consisting

1975-08-29

1977-04-19

Woodberry, Edward M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

106288Q, 260 25F, 260 294R, 260 69R, C08G 228

Patent

active

040187411

ABSTRACT:
To manufacture highly disperse solids of crosslinked urea-formaldehyde polycondensation products consisting of primary particles with an average diameter not greater than 1 micron, an aqueous solution consisting essentially of water and a precondensate of urea and formaldehyde is converted into a crosslinked gel by the addition of sulphamic acid or a water-soluble ammonium hydrogen sulphate, in the course of which the molar ratio of formaldehyde:urea should be greater than 1.2 and not greater than 2.0 not later than at the time of the formation of the gel. The resulting gel is comminuted, dried and disintegrated. The powders are suitable for use as pigments, carriers and absorbents.

REFERENCES:
patent: 3981845 (1976-09-01), Renner

Affiliated with

Also associated with

Rating

Process for the manufacture of highly disperse solids consisting 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 manufacture of highly disperse solids consisting, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the manufacture of highly disperse solids consisting will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-102125