Cross-linkable and cross linked macromolecular compositions wher

Details Cross-linkable and cross linked macromolecular compositions wher Cross-linkable and cross linked macromolecular compositions wher

1982-07-19

1985-03-26

Pertilla, Theodore E.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

166307, 166308, 252 855C, 524501, 524515, 524516, 524548, 524555, 524845, 525201, 525205, 525209, 525374, C08L 3326

Patent

active

045074402

ABSTRACT:
The present invention relates to macromolecular compositions crosslinked by a novel bridge having the formula --NR.sup.x --CH.dbd.N--CO--. This novel bridge is obtained by reacting a macro-molecule, preferably a polymer, having at least two amidocarbonyl groups with a compound having at least two formylamido groups in an aqueous medium under highly acidic conditions. The crosslinking bridge formed by the reaction of this invention is produced in accord with the following formula: ##STR1## Compositions containing macromolecules having at least two amidocarbonyl groups and a compound having at least two formylamido groups can act as viscosifying or gelling agents for aqueous acids where when added to aqueous acids, crosslinking occurs. Acids gelled in this manner have important use in the recovery of oil and natural gas from subterranean formations.

REFERENCES:
patent: 2760977 (1956-08-01), Feuer
patent: 2864861 (1956-06-01), Wohusiedler et al.
patent: 2864862 (1958-12-01), Sutherland et al.
patent: 3635835 (1972-01-01), Peterson
patent: 3931089 (1976-01-01), Karl
patent: 3934651 (1976-01-01), Nierode et al.
patent: 3978164 (1976-08-01), LeBoeuf et al.
patent: 4055502 (1977-10-01), Swanson
patent: 4061580 (1977-12-01), Jahnke
patent: 4079011 (1978-03-01), Tate
patent: 4079027 (1978-03-01), Phillips at al.
patent: 4088584 (1978-05-01), Smalley et al.
patent: 4098987 (1978-07-01), Barua et al.
patent: 4100079 (1978-07-01), Sinkovitz et al.
patent: 4107057 (1978-08-01), Dill et al.
patent: 4144179 (1979-03-01), Chatterji
patent: 4146486 (1979-03-01), Hessert et al.
patent: 4163476 (1979-08-01), Tate
patent: 4163727 (1979-08-01), Inks
patent: 4219429 (1980-08-01), Allen et al.
patent: 4309523 (1982-01-01), Engelhardt
Copolymerization, edited by George E. Ham, Interscience Publishers.
Kunststoff-Handbuch, vol. I, "Grundlagen", by Braun, pp.91-95, (1975).

Affiliated with

Also associated with

Rating

Cross-linkable and cross linked macromolecular compositions wher does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cross-linkable and cross linked macromolecular compositions wher, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cross-linkable and cross linked macromolecular compositions wher will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1294666