公开(公告)号：US20220205185A1

公开(公告)日：2022-06-30

申请号：US17607145

申请日：2020-03-31

Applicant: ECOLAB USA INC.

Inventor： David J. Castro ,  Victor Fuk-Pong Man ,  Stephen Raye Marrou ,  Gang Pu

IPC: D21H23/56 ,  D21H19/54 ,  D21H19/32 ,  D21H21/16 ,  D21H21/20 ,  D21H21/24

Abstract: Paper treating compositions and methods of using the same are disclosed herein. The paper treating compositions of the present disclosure may include a strength agent and a surfactant or a sizing agent and a surfactant. The compositions and methods can be used to improve sizing and paper strength, especially, for example in spray size press applications.

公开(公告)号：US12203220B2

公开(公告)日：2025-01-21

申请号：US17607145

申请日：2020-03-31

Applicant: ECOLAB USA INC.

Inventor： David J. Castro ,  Victor Fuk-Pong Man ,  Stephen Raye Marrou ,  Gang Pu

IPC: D21H23/56 ,  D21H19/32 ,  D21H19/54 ,  D21H21/16 ,  D21H21/20 ,  D21H21/24

Abstract: Paper treating compositions and methods of using the same are disclosed herein. The paper treating compositions of the present disclosure may include a strength agent and a surfactant or a sizing agent and a surfactant. The compositions and methods can be used to improve sizing and paper strength, especially, for example in spray size press applications.

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.