公开(公告)号：US20250075432A1

公开(公告)日：2025-03-06

申请号：US18820354

申请日：2024-08-30

Applicant: ECOLAB USA INC.

Inventor： En-Wei Lin ,  Stephen Raye Marrou ,  Gary Samuel Furman, JR.

IPC: D21H21/20 ,  D21H17/02 ,  D21H17/06 ,  D21H17/55 ,  D21H23/14

Abstract: In some embodiments, a process can include combining a plurality of fibers and water to produce a slurry, forming the slurry into a wet paper web, pressing and draining the wet paper web to produce a wet paper sheet, and drying the wet paper sheet to produce a paper product. A strengthening agent can be combined with the fibers and water to produce the slurry, applied to the wet paper web, and/or applied to the wet paper sheet. The strengthening agent can include a polyamidoamine-epihalohydrin resin and an additive. The additive can include a tannin and/or a compound having a chemical formula (I) of: where: R1, R2, and R3 can independently be a hydroxyl group or a methoxy group, and R4, R5, and R6 can independently be H, an alkyl group, an aldehyde group, a carboxylic acid group, or a —C═C—COOH group.

公开(公告)号：US11332563B2

公开(公告)日：2022-05-17

申请号：US16523730

申请日：2019-07-26

Applicant: Ecolab USA Inc.

Inventor： Paul Joseph Zinn ,  En-Wei Lin ,  Heinrich Enoch Bode ,  Mario Roberto Rojas ,  Christopher Steven Popeney ,  Pious Kurian

IPC: C09K8/68 ,  C08F220/56 ,  C09K8/12 ,  C10G71/00

Abstract: Copolymers and compositions containing copolymers having advantageous viscosity, friction reduction, dissolution, pH-stability, and temperature-stability are provided. These copolymers can be used as rheology modifiers for oil field applications.

公开(公告)号：US20200031968A1

公开(公告)日：2020-01-30

申请号：US16523730

申请日：2019-07-26

Applicant: Ecolab USA Inc.

Inventor： Paul Joseph Zinn ,  En-Wei Lin ,  Heinrich Enoch Bode ,  Mario Roberto Rojas ,  Christopher Steven Popeney ,  Pious Kurian

IPC: C08F220/56 ,  C10G71/00 ,  C09K8/12

Abstract: Copolymers and compositions containing copolymers having advantageous viscosity, friction reduction, dissolution, pH-stability, and temperature-stability are provided. These copolymers can be used as rheology modifiers for oil field applications.

公开(公告)号：US20200032133A1

公开(公告)日：2020-01-30

申请号：US16523642

申请日：2019-07-26

Applicant: Ecolab USA Inc.

Inventor： Christopher Steven Popeney ,  En-Wei Lin ,  Paul Joseph Zinn ,  Pious Kurian ,  Heinrich Enoch Bode

IPC: C09K8/68 ,  C08F220/56

Abstract: Compounds, compositions and methods of use thereof are provided, the compounds comprising a hydrophobically modified polyelectrolyte comprising a nonionic monomer, an ionic monomer, a monomer having the structure of Formula 1, and a monomer having the structure of Formula 2, wherein R1, R2, R3, R5, R6, and R7 are independently hydrogen, unsubstituted alkyl, substituted alkyl, carbonyl, carboxyl, aryl, or alkaryl; R4 is linear C3 to C30 alkyl; R8 is branched C3 to C30 alkyl; X1 and X2 are independently —C(O)O—, —C(O)NR9—, —O—, —C(R9)2O—, -arylene-, -arylene-C(R9)2O—, -arylene-C(R9)2N(R10)— or -arylene-C(R9)2N+(R10)2—; R9 and R10 is independently hydrogen or a C1 to C4 alkyl; and wherein a molar ratio of the monomer of Formula 1 to the monomer of Formula 2 is from about 1.5:1 to about 15:1. The compounds are useful as viscosifying agents in oil and gas applications.

公开(公告)号：US20210079143A1

公开(公告)日：2021-03-18

申请号：US16983685

申请日：2020-08-03

Applicant: ECOLAB USA INC.

Inventor： Gary S. Furman ,  En-Wei Lin ,  Mei Liu ,  David J. Castro ,  Christopher D. Kaley

IPC: C08F220/58 ,  D21H21/18 ,  D21H17/45

Abstract: Strengthening resins and processes for making and using same. In some embodiments, a resin mixture can include a solvent and a strengthening resin. The strengthening resin can include one or more hydrophobic monomers incorporated therein. The strengthening resin can have a chemical formula of (I). The chemical formula (I) can include: where each R2 can be derived from a hydrophobic monomer.