Fmc Corporation

Brown, Richard A.

Norris, Robert D.

Brubaker, Gaylen R.

Gaylen R Brubaker

Joseph H Finley

Burton M Baum

Fred Richard Scholer

Richard A Brown

Robert D Norris

A hydraulic process has been developed and a process to treat subterranean formations whereby the medium can maintain for a period of time a sufficient viscosity to function as a hydraulic medium and optionally to support particulate matter. Subsequently, the viscosity of the medium decreases to facilitate the removal of the medium.

Peroxygen breaker systems for well completion fluids

Bleaching compositions containing a chlorine bleaching agent coated with a silicate bound, hydrated, soluble salt containing an N--H chlorine accepting compound are described. Such compositions exhibit decreased localized dye attack of colored fabrics.

Encapsulated bleaches and methods of preparing them

A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator a N-sulfonylazole of the formula ##STR1## where Z represents the number of carbon and nitrogen atoms necessary to complete a heterocyclic ring selected from the class consisting of pyrazole, pyrrole, triazole, and benzotriazole wherein said ring can be substituted with phenyl, alkyl of 1 to 10 carbon atoms, halogen, amino, cyano, nitro, alkoxy of 1 to 10 carbon atoms and R is an alkyl radical of 1 to 10 carbon atoms. Also described are dry blend compositions containing the bleach bath components.

Peroxygen bleaching and compositions therefor

A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator an organophosphorus chlorine compound selected from the class consisting of R.sub.1 OR.sub.2 OP(O)Cl, R.sub.1 R.sub.2 OP(O)Cl and R.sub.1 R.sub.2 P(O)Cl, wherein R.sub.1 and R.sub.2 represent the organic portion of the molecule.

A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator an imidoyl compound of the formula ##STR1## wherein R.sub.1 is an organic radical selected from the group consisting of hydrogen; an aliphatic radical of 1 to 18 carbon atoms; an aromatic radical of the benzene and naphthalene series and a heterocyclic radial of 1 to 2 rings each containing 5 to 6 members of which 1 to 3 are heteroatoms selected from the class consisting of nitrogen, oxygen and sulfur; R.sub.2 is an organic radical selected from the group consisting of R.sub.1 and -OR wherein R is equal to R.sub.1 except for hydrogen and X is a leaving group, said radicals or leaving groups bearing non-interfering substituents. Also described are dry bleach compositions containing the bleach bath components.

A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator a carbodiimide of the formula:

A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator an N-acyl-cyano cyclic amine selected from the class consisting of ##STR1## wherein R is a hydrocarbon radical selected from the group consisting of aliphatic of 1 to 18 carbon atoms and aromatic of the benzene and naphthalene series and X is selected from the class consisting of --C(O)-- and --S(O.sub.2)--, it being provided that the cyclic amine may contain a non-interfering substituent. Also described are dry blend compositions containing the activator and peroxygen.

A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator an acylphosphonate. Also described are dry blend compositions containing the bleach bath components.

A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator an N-sulfonylimidazole of the formula: ##STR1## wherein R.sub.2, R.sub.3 and R.sub.4 are each selected from the class consisting of hydrogen, halogen, alkoxy of 1 to 16 carbon atoms, carbonylmethoxy, nitro, an aliphatic hydrocarbon radical of 1 to 16 carbon atoms, a cycloaliphatic hydrocarbon radical of 3 to 7 carbon atoms, an aromatic hydrocarbon radical of the benzene and naphthalene series and a heterocyclic radical of 1 to 2 rings each containing 5 to 6 members of which 1 to 2 are heteroatoms selected from the group consisting of nitrogen, oxygen and sulfur while taken together R.sub.3 and R.sub.4 can complete a benzene ring and R.sub.1 is a hydrocarbon or heterocyclic radical as above defined for R.sub.2, R.sub.3 and R.sub.4. Also described are dry blend compositions containing the bleach bath components.

Growing community of inventors

Lawrenceville, NJ, United States of America

Gaylen R Brubaker