3m Innovative Properties Company

Kevin T Grove

Audrey A Sherman

Charles M Leir

Ronald Wayne Ausen

Walter R Romanko

Mikhail L Pekurovsky

James N Dobbs

Shawn C Dodds

Kara A Meyers

Tyler J Rattray

Samad Javid

Eric A Vandre

Brittni M Schiewer

Wayne D Meredyk

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.

Method and apparatus for coating on baggy web

An essentially solventless process for preparing a hot melt-processable release material comprises the step of providing reactants to a reactor, wherein the reactants comprise at least one backbone polymer having a grafting site that is reactive with a release component to selectively form a release moiety substituent at the grafting site; and a release component that is reactive with the grafting site. The release component is used in an effective amount for imparting release properties to the resulting release material. Also disclosed are release materials preparable thereby and coated substrates comprising the release material. Advantageously, release materials of the present invention are preparable and coatable using a single extruder.

Hot-melt processable release material, method of preparation, and articles therefrom

Hot-melt processable release material, method of preparation, and

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Hammond, WI, United States of America

Kevin T Grove