Ecolab USA Inc.

Nalco Company

Championx USA Inc.

Mei Liu

David J Castro

Robert M Lowe

Weiguo Cheng

Michael Robert St John

Shawnee M Wilson

Zhiyi Zhang

Rangarani Karnati

Bradley Benz

Kin-Tai Chang

Gary Samuel Furman, Jr

Heinrich Enoch Bode

William C Johnson

Mark Grimm

David A Castro

Michael L Szalai

Paul Richardson

Gary S Furman, Jr

Dorota Smoron

Herman Mark Grimm

James L Thomas

Heinrich E Bode

Bradley J Benz

Paul F Richardson

Method are provided for treating a wellbore or subterranean hydrocarbon-bearing formation to increase hydrocarbon recovery from the formation by in-depth mobility control and/or fluid diversion conformance by introducing a water soluble acrylamide polymer and a non-metallic organic crosslinking agent, or a crosslinkable acrylamide polymer, into an injection fluid entering the wellbore or the formation.

Weak gel system for chemical enhanced oil recovery

The present disclosure provides for a method of preparing and using an emulsion for treating a papermaking process. The emulsion is an oil-in-water emulsion of alkenyl succinic anhydride emulsified with a polymer comprising at least one primary or secondary amine containing monomer. The method comprises adding an oil-in-water emulsion to the papermaking process; wherein the oil-in-water emulsion comprises alkenyl succinic anhydride emulsified with a polymer comprising at least one primary or secondary amine containing monomer; and wherein the oil-in-water emulsion is added in an amount sufficient to improve sizing of the paper produced by the papermaking process. The primary or secondary amine may be a secondary amine comprising diallylamine, and the polymer may be a diallylamine-acrylamide copolymer.

Emulsification of alkenyl succinic anhydride with an amine-containing homopolymer of copolymer

Methods and compositions for improving the characteristics of paper substrates are disclosed. The methods involve adding to a paper substrate an NCC-polymer. NCC-polymers have unique chemical properties which result in improvements in wet strength, dry strength and drainage retention properties of the paper substrates.

Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking process

Disclosed are compositions and methods useful in applications relating to papermaking. The compositions and methods of the present invention comprise aldehyde-functionalized polymers designed to impart high paper strength and enhance water removal during the papermaking process. The aldehyde-functionalized polymers are of relatively low molecular weight, and comprise amino and/or amide groups mono-reacted and di-reacted at a ratio of at least about 1.5 to 1. The low molecular weight polymers of the present invention have the same strength and dewatering performance as corresponding high molecular weight polymers.

Aldehyde-functionalized polymers for paper strength and dewatering

The disclosure provides methods and compositions for increasing the dry strength of paper. The invention utilizes a tailored strength agent whose size and shape is tailored to fit into the junction points between flocs of a paper sheet. The strength agents is in contact with the slurry for just enough time to collect at the junction points but not so much that it can migrate away from there.

Wet end chemicals for dry end strength in paper

The invention provides methods and compositions for increasing the strength of a paper sheet. The method involves adding to the paper sheet an amine containing polymer. The amine containing polymer interacts with materials such as GPAM or starch to make the paper stronger in terms including tensile strength, surface strength and bulk strength.

Method of increasing paper strength

The disclosure provides methods and compositions for increasing the strength of a paper sheet. The method involves adding to the paper sheet an amine-containing polymer. The amine-containing polymer interacts with materials such as glyoxalated polyacrylamide or starch to make the paper stronger in terms including tensile strength, surface strength and bulk strength.

Method of increasing paper bulk strength by using a diallylamine acrylamide copolymer in a size press formulation containing starch

Method of increasing paper strength using an amine containing polymer composition

Emulsification of alkenyl succinic anhydride with an amine-containing homopolymer or copolymer

The invention provides methods and compositions for increasing the dry strength of paper. The invention utilizes a tailored strength agent whose size and shape is tailored to fit into the junction points between flocs of a paper sheet. The strength agents is in contact with the slurry for just enough time to collect at the junction points but not so much that it can migrate away from there.

The invention provides methods and compositions for improving the characteristics of paper substrates. The method involves adding to a paper substrate an NCC-polymer. NCC-polymers have unique chemical properties which result in improvements in wet strength, dry strength and drainage retention properties of the paper substrates.

The invention provides methods and compositions for improving the characteristics of paper substrates. The method involves adding to a paper substrate an NCC-polymer. NCC polymers have unique chemical properties which result in improvements in wet strength, dry strength and drainage retention properties of the paper substrates.

Disclosed herein are compositions and methods to increase paper machine performance and enhance sizing. The compositions include a sizing agent, an emulsifier, and an aqueous component. The emulsifier may be an aldehyde-functionalized polymer. The sizing agent may be selected from rosin size, an alkyl ketene dimer, an alkenyl succinic anhydride, and any combination of these sizing agents.

Method of using aldehyde-functionalized polymers to increase papermachine performance and enhance sizing

Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention, wet strength, and dry strength in papermaking process

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Plainfield, IL, United States of America

Mei Liu