Abstract:
An article including a release liner with an adhesive layer disposed thereon, the adhesive layer including a plurality of stripes of a first pressure-sensitive adhesive and of a second pressure-sensitive adhesive, arranged in a generally alternating pattern. The first pressure-sensitive adhesive is a silicone-based pressure-sensitive adhesive that includes a silicone block copolymer elastomer comprising hard segments that each comprise at least one polar moiety, and the second pressure-sensitive adhesive is an organic polymeric pressure-sensitive adhesive.
Abstract:
An apparatus and process for applying a coating material onto a substrate as a non-uniform layer of coating material, the method including providing a distribution manifold having a cavity and a plurality of dispensing outlets in fluid communication with the cavity, creating relative motion between a substrate and the dispensing outlets in a first direction, and dispensing coating material from the dispensing outlets while simultaneously translating the plurality of dispensing outlets in a second direction non-parallel to the first direction. Using the process, coated articles having a useful non-uniform coating or coatings can be prepared, in particular self-adhesive vapor permeable air and moisture barrier membranes for use as architectural structure wraps.
Abstract:
An article including a first substrate with an adhesive layer disposed thereon, the adhesive layer including a plurality of stripes of a first pressure-sensitive adhesive and of a second pressure-sensitive adhesive, arranged in a generally alternating pattern.
Abstract:
Coating apparatuses and methods are provided for direct coatings with various shapes. The coating apparatus includes a die body with one or more bores. One or more cams are pivotally mounted within the bores and have one or more recessed areas formed into the respective peripheral surfaces thereof. The one or more cams are rotatable within the die body to dynamically, independently vary the width or shape of the respectively dispensed one or more fluid coatings.
Abstract:
A sheet comprising a substrate having a first major surface and a second major surface, the first major surface having one or more segments of adhesive thereon and the second major surface having a release coating thereon wherein the release coating substantially completely covers the second major surface and has a varied thickness corresponding to the adhesive segments.
Abstract:
Herein are disclosed a pressure-sensitive adhesive layer on a substrate, the adhesive layer containing stripes of first and second pressure-sensitive adhesives. The surface of the adhesive layer that faces the substrate is surface-enriched with the first pressure-sensitive adhesive. Methods of making are disclosed.
Abstract:
Described is a pressure sensitive adhesive tape having a backing with a first side and a second side and an adhesive or segments of adhesive on the first side where the adhesive at the edges is thicker than the mid-cross section. Such tapes are especially useful on rough surfaces. Also described is an adhesive tape with an inner adhesive coated on the first side, a plurality of second segments uncoated by adhesive, where the first segments are separated by the second segments, and a third segment of an edge adhesive coated on the edges of the first side of the tacking providing a thicker edge adhesive.