公开(公告)号：US20190127916A1

公开(公告)日：2019-05-02

申请号：US16097018

申请日：2017-04-21

Applicant: WACKER CHEMIE AG

Inventor： John Richard BOYLAN ,  Dennis SAGL

IPC: D21H17/36 ,  D21H21/14 ,  D21H19/12 ,  D21H27/02 ,  C09J131/04 ,  C08F218/08 ,  B31F1/12 ,  D06C23/04

Abstract: A crepe process includes applying an adhesive composition to a nonwoven web, drying, and creping the nonwoven web on a creping drum. The improvement includes using an adhesive composition that includes an aqueous copolymer dispersion obtained by emulsion polymerization of a monomer mixture including 65 to 94.5% by weight of vinyl acetate, 5 to 30% by weight of ethylene, (meth)acrylamide, and 0.1 to 4% by weight of an N-methylol functional monomer. The N-methylol functional monomer constitutes from 25 to 85% by weight of the combined amounts of acrylamide and N-methylol functional monomer, which combined amounts constitute from 0.5 to 5% by weight of the monomer mixture. The emulsion polymerization is performed in the presence of 1 to 10% by weight of polyvinyl alcohol, based on the total weight of all monomers used for the polymerization. The adhesive composition does not include alkylphenol ethoxylates, phosphate ester surfactants, or sodium laureth sulfate.

公开(公告)号：US20210289778A1

公开(公告)日：2021-09-23

申请号：US16980613

申请日：2018-12-14

Applicant: WACKER CHEMIE AG

Inventor： John BOYLAN ,  Dennis SAGL

IPC: A01N25/34 ,  A01N33/12 ,  A01N25/10 ,  A01N25/22

Abstract: An antimicrobial nonwoven wet wipe includes i) a fibrous nonwoven substrate bonded with a crosslinkable VAE dispersion stabilized with one or more cationic vinyl alcohol-N-vinyl amine copolymer protective colloids, and ii) an aqueous lotion containing a cationic disinfectants absorbed in the nonwoven substrate. No anionic surfactants are present. The antimicrobial nonwoven wet wipes are produced by a) applying an aqueous composition including a crosslinkable VAE dispersion stabilized with one or more cationic vinyl alcohol-N-vinyl amine copolymers to a nonwoven substrate; b) drying; and c) applying an aqueous composition to the product of step b). At least one of the first and second aqueous com-positions includes a cationic disinfectant.

公开(公告)号：US20200056124A1

公开(公告)日：2020-02-20

申请号：US16610635

申请日：2017-05-03

Applicant: John Richard BOYLAN ,  WACKER CHEMIE AG

Inventor： John Richard BOYLAN ,  Dennis SAGL

IPC: C11D3/48 ,  C11D1/835 ,  C11D17/04 ,  C11D3/37 ,  C11D3/22 ,  C11D1/722 ,  C11D1/62 ,  D04H1/587 ,  D04H1/64

Abstract: An antimicrobial nonwoven wet wipe includes i) a fibrous nonwoven substrate bonded with a cross-linkable VAE dispersion stabilized with one or more nonionic colloidal stabilizers and one or more nonionic surfactants, and ii) absorbed in the nonwoven substrate, an aqueous lotion including one or more cationic disinfectants. No anionic surfactants are present in the antimicrobial nonwoven wet wipe. A method of producing the antimicrobial nonwoven wet wipe includes a) applying a first aqueous composition including a crosslinkable VAE dispersion stabilized with one or more nonionic colloidal stabilizers and one or more nonionic surfactants to a nonwoven substrate; b) drying the composition; and c) applying a second aqueous composition to the product of step b). At least one of the first and second aqueous compositions includes one or more cationic disinfectants.