Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the process is carried out in a modular, relocatable plant. The plant preferably is deployed at a location at which aqueous polyacrylamide solutions are used, for example on an oilfield or in a mining area.

Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the process is carried out in a modular, relocatable plant. The plant preferably is deployed at a location at which aqueous polyacrylamide solutions are used, for example on an oilfield or in a mining area.

The present disclosure relates to a composition having a structure defined by

##STR00001##

, where symbolizes a covalent bond to a neighboring atom, R.sub.2 is a functional group derived from at least one of a homocyclic molecule, a heterocyclic molecule, a polycyclic molecule, an aliphatic molecule, and/or an organo-phosphorous molecule, 1 ≤ x ≤ 1000, and 2 ≤ z ≤ 1000.

The present disclosure relates to a composition having a structure defined by

##STR00001##

, where symbolizes a covalent bond to a neighboring atom, R.sub.2 is a functional group derived from at least one of a homocyclic molecule, a heterocyclic molecule, a polycyclic molecule, an aliphatic molecule, and/or an organo-phosphorous molecule, 1 ≤ x ≤ 1000, and 2 ≤ z ≤ 1000.

A core-shell type polymeric particle may exhibit good dispersibility in an aqueous medium and excellent flame retardance. A core-shell type polymeric particle may include a core including a hydrophobic polymer (c) and a shell including a copolymer having a repeating unit (a) derived from vinyl phosphonic acid or a vinyl phosphonic acid ester and a repeating unit (b) of formula (α):

##STR00001##

wherein R.sup.a is H or a methyl group, R.sup.b is a single bond or a carbonyl group, and ring Q.sup.1 is a substituted or unsubstituted 4 to 10 membered nitrogen-containing heterocycle.

A core-shell type polymeric particle may exhibit good dispersibility in an aqueous medium and excellent flame retardance. A core-shell type polymeric particle may include a core including a hydrophobic polymer (c) and a shell including a copolymer having a repeating unit (a) derived from vinyl phosphonic acid or a vinyl phosphonic acid ester and a repeating unit (b) of formula (α):

##STR00001##

wherein R.sup.a is H or a methyl group, R.sup.b is a single bond or a carbonyl group, and ring Q.sup.1 is a substituted or unsubstituted 4 to 10 membered nitrogen-containing heterocycle.

The present invention relates to the field of chemical compositions and flame retardants. Specifically, the invention relates to a composition for imparting flame retardancy comprising an organic salt as a fire-retardant compound, a binder and a surfactant. Also, the present invention relates to a method for manufacturing said composition and a method of imparting flame retardancy to a substrate comprising applying said composition to the substrate. And still, the invention relates to uses of said composition e.g. for imparting flame retardancy to a substrate. Furthermore, the invention relates to products comprising said composition.

The present invention relates to the field of chemical compositions and flame retardants. Specifically, the invention relates to a composition for imparting flame retardancy comprising an organic salt as a fire-retardant compound, a binder and a surfactant. Also, the present invention relates to a method for manufacturing said composition and a method of imparting flame retardancy to a substrate comprising applying said composition to the substrate. And still, the invention relates to uses of said composition e.g. for imparting flame retardancy to a substrate. Furthermore, the invention relates to products comprising said composition.

Cross-linked polyvinyl polymers comprising charged groups and methods of making are disclosed. The polymers are effective and durable adsorbent of dyes from aqueous solutions. Also, a method of removal of dyes from contaminated water is disclosed.

Cross-linked polyvinyl polymers comprising charged groups and methods of making are disclosed. The polymers are effective and durable adsorbent of dyes from aqueous solutions. Also, a method of removal of dyes from contaminated water is disclosed.