Rendering porous structures impermeable by treatment with pH ins

Coating processes – With post-treatment of coating or coating material – Heating or drying

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

138 89, 166285, 260 294UA, 4273936, 525509, 525327, 525336, 525367, 525385, B05D 724, C08L 6120

Patent

active

041996259

ABSTRACT:
Aqueous solutions of amide polymers, such as polyacrylamide when treated with small amounts of a water-soluble polyaldehyde and a hypohalite salt at an alkaline pH, react to form firm gels within a short time at ambient temperature. Such gels, which are stable under alkaline as well as acidic conditions, are usefully employed to plug porous subterranean formations, for grouting of leaking soil pipes or wells, and to otherwise render porous structures impermeable to the passage of liquids such as water.

REFERENCES:
patent: 2856380 (1958-10-01), Roth
patent: 2940729 (1960-06-01), Rakowitz
patent: 3244640 (1966-04-01), Stadf et al.
patent: 3437625 (1969-04-01), Bonnel et al.
patent: 3520925 (1970-07-01), Heinz et al.
patent: 3556221 (1971-01-01), Haws et al.
patent: 3759197 (1973-09-01), Bracke
patent: 3759857 (1973-09-01), Bracke
patent: 3810468 (1974-05-01), Harper et al.
patent: 3953342 (1976-04-01), Martin et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Rendering porous structures impermeable by treatment with pH ins does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rendering porous structures impermeable by treatment with pH ins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rendering porous structures impermeable by treatment with pH ins will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1475944

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.