Polymers are provided for use in inhibiting gas hydrate formation and/or corrosion in hydrocarbon-containing fluids. The polymer comprises repeat units derived from a first monomer comprising N-[3-(dibutylamino)propyl]methacrylamide (DBAPAMA) or an alkyl, acetyl, acryloyl or benzyl quaternary salt thereof, N-[3-(diisobutyl)propyl]methacrylamide or an alkyl, acetyl, acryloyl or benzyl quaternary salt thereof, N-[3-(diisopentyl)propyl]methacrylamide or an alkyl, acetyl, acryloyl or benzyl quaternary salt thereof, or a combination thereof; and repeat units derived from a second monomer comprising acrylamide, N-alkylacrylamide, N-alkyl (alkyl)acrylamide, ((dialkylamino)alkyl)acrylamide or an alkyl or benzyl quaternary salt thereof, ((dialkylamino)alkyl)alkylacrylamide or an alkyl or benzyl quaternary salt thereof, acrylic acid, alkyl acrylate, N,N-(dialkylamino)alkyl acrylate or an alkyl or benzyl quaternary salt thereof, N,N-(dialkylamino)alkyl (alkyl)acrylate or an alkyl or benzyl quaternary salt thereof, hydroxyalkyl acrylate, hydroxyalkyl (alkyl)acrylate, acrylamido alkyl sulfonic acid or a salt thereof, a diallyl dialkyl quaternary ammonium salt, or a combination thereof. The second monomer does not comprise the first monomer.

Polymers are provided for use in inhibiting gas hydrate formation and/or corrosion in hydrocarbon-containing fluids. The polymer comprises repeat units derived from a first monomer comprising N-[3-(dibutylamino)propyl]methacrylamide (DBAPAMA) or an alkyl, acetyl, acryloyl or benzyl quaternary salt thereof, N-[3-(diisobutyl)propyl]methacrylamide or an alkyl, acetyl, acryloyl or benzyl quaternary salt thereof, N-[3-(diisopentyl)propyl]methacrylamide or an alkyl, acetyl, acryloyl or benzyl quaternary salt thereof, or a combination thereof; and repeat units derived from a second monomer comprising acrylamide, N-alkylacrylamide, N-alkyl (alkyl)acrylamide, ((dialkylamino)alkyl)acrylamide or an alkyl or benzyl quaternary salt thereof, ((dialkylamino)alkyl)alkylacrylamide or an alkyl or benzyl quaternary salt thereof, acrylic acid, alkyl acrylate, N,N-(dialkylamino)alkyl acrylate or an alkyl or benzyl quaternary salt thereof, N,N-(dialkylamino)alkyl (alkyl)acrylate or an alkyl or benzyl quaternary salt thereof, hydroxyalkyl acrylate, hydroxyalkyl (alkyl)acrylate, acrylamido alkyl sulfonic acid or a salt thereof, a diallyl dialkyl quaternary ammonium salt, or a combination thereof. The second monomer does not comprise the first monomer.

A one-pack polymer modifier containing a) at least one process aid functionalized with a reactive epoxy, hydroxyl, -keto ester, -keto amide or carboxylic acid functional group, b) at least one impact modifier, c) optionally, at least one mineral filler and d) optionally, at least one further additive is useful for modifying the properties of thermoplastic polymers such as PVC, including reducing the surface gloss of an article prepared from the thermoplastic polymer and improving the impact strength of such an article.

A one-pack polymer modifier containing a) at least one process aid functionalized with a reactive epoxy, hydroxyl, -keto ester, -keto amide or carboxylic acid functional group, b) at least one impact modifier, c) optionally, at least one mineral filler and d) optionally, at least one further additive is useful for modifying the properties of thermoplastic polymers such as PVC, including reducing the surface gloss of an article prepared from the thermoplastic polymer and improving the impact strength of such an article.

Disclosed herein are water-soluble polymers comprising hydrolyzable cross-linked monomer units, and methods for recovering hydrocarbon fluids from a subterranean formation using the water-soluble polymers.

Disclosed herein are water-soluble polymers comprising hydrolyzable cross-linked monomer units, and methods for recovering hydrocarbon fluids from a subterranean formation using the water-soluble polymers.

Disclosed herein are water-soluble polymers comprising hydrolyzable cross-linked monomer units, and methods for recovering hydrocarbon fluids from a subterranean formation using the water-soluble polymers.

Disclosed herein are water-soluble polymers comprising hydrolyzable cross-linked monomer units, and methods for recovering hydrocarbon fluids from a subterranean formation using the water-soluble polymers.

Disclosed herein are water-soluble polymers comprising hydrolyzable cross-linked monomer units, and methods for recovering hydrocarbon fluids from a subterranean formation using the water-soluble polymers.

Disclosed herein are water-soluble polymers comprising hydrolyzable cross-linked monomer units, and methods for recovering hydrocarbon fluids from a subterranean formation using the water-soluble polymers.