Patent · US Active

Method and apparatus for coating on baggy web

US11465172B2 · kind B2 · utility

0Cited by

7References

20Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Kara A. Meyers · Oakdale, US
Shawn C. Dodds · Windom, US
Eric A. Vandre · Minneapolis, US
Tyler J. Rattray · Minneapolis, US
Kevin T. Grove · Woodbury, US
Brittni M. Schiewer · Okabena, US
Mikhail L. Pekurovsky · Bloomington, US
Samad Javid · Woodbury, US
James N. Dobbs · Woodbury, US
Wayne D. Meredyk · Maplewood, US

Key dates

Filing date	Nov 12, 2018
Grant date	Oct 11, 2022
Priority date	—
Expiry date	May 27, 2039

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21H25/12
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Methods and apparatuses for applying coatings on a baggy web are provided. A Mayer rod and a back-up roll engage with each other to form a nip. The back-up roll has a deformable inner layer with a surface thereof covered by a deformable outer layer. The Mayer rod and the flexible web at a contacting area are impressed into the back-up roll with a machine-direction nip width W and a nip engagement depth D, which enables formation of a coating having a substantially uniform thickness.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.