Abstract: Coextruded polymeric article (100, 200) comprising first and second opposed major surfaces (111, 211), wherein a plurality of projections (114, 117, 214, 214, 217) extend from only the first major surface (111, 112, 211, 212), wherein each projection (214) has at least first and second opposed sides (218) and a height from the first major surface (111, 112, 211, 212) to a distal end (116, 216), wherein at least a majority by number of the projections (114, 117, 214, 214, 217) have a protrusion (117, 217) extending from It only the first side (118, 218) and extending in one direction not more than to the first major surface (111, 112, 211, 212) and extending in an opposite direction to less than the height of the respective projection (214), wherein the projections (114, 117, 214, 214, 217) extend to the second major surface (111, 112, 211, 212), wherein there are regions (119, 120, 220) extending from the first and second major surfaces (111, 211) that are between projections (114, 117, 214, 214, 217), wherei

Abstract: In one embodiment, an adhesive composition is described comprising a polyisobutylene polymer component, a styrene-isobutylene block copolymer, and optionally a tackifier. The polyisobutylene polymer component comprises one or more polyisobutylene polymers. The polyisobutylene polymer component has an average weight average molecular weight ranging from 15,000 g/mole to 300,000 g/mole. The weight ratio of block copolymer to polyisobutylene polymer of the adhesive composition is greater than 2.2:1. In some embodiments, the adhesive composition is a pressure sensitive adhesive.

Abstract: The present invention is an adhesive composition for use in passivating metallic conductors in an electronic device including at least one low molecular weight polyisobutylene polymer having a weight average molecular weight of about 75,000 or lower, at least one high molecular weight polyisobutylene polymer having a weight average molecular weight of about 120,000 or higher, and optionally, at least one tackifier. Each of the polyisobutylenes and the optional tackifier has a halogen ion content of no more than 1 ppm.

Abstract: The present invention is an adhesive composition including at least one low molecular weight polyisobutylene polymer having a weight average molecular weight of about 75,000 or lower, at least one high molecular weight polyisobutylene polymer having a weight average molecular weight of about 120,000 or higher, and optionally, at least one tackifier.

Abstract: A tape includes: a flexible backing layer having two major surfaces, wherein the backing layer has a thickness of greater than 64 micrometers and up to 200 micrometers, and one major surface of the backing layer includes a primed surface; and a rubber-based pressure sensitive adhesive layer disposed on the primed surface of the backing layer, wherein the pressure sensitive adhesive layer has a thickness of at least 7.6 micrometers (and preferably up to 25 micrometers); wherein, when disposed on an aluminum substrate, the tape displays a peel adhesion of less than 20 oz/in (219 N/m) according to a Peel Adhesion Strength Test described in the Examples Section, and a leakage distance of less than 762 micrometers according to a Chromic Acid Anodization—Leakage Distance Test described in the Examples Section.

Abstract: Dust suppression compositions include at least one cationic or zwitterionic (meth)acrylate-based copolymer and at least one solvent, where the solvent can be water, an aqueous mixture, or one or more non-water solvents. The dust suppression composition can also include a plasticizer, generally glycerol. The dust suppression compositions are suitable for use with sand mixtures, especially silica sand mixtures.

Abstract: The present invention is directed to synthetic attachment discs made from adhesive nanofibers and/or microfibers that are capable of attaching long fibers to a wide variety of surfaces, and related methods for forming and using them. The synthetic attachment discs of the present invention use very little material relative to prior art systems, while producing a very strong attachment force. Experimental and theoretical evidence are provided to confirm the advantages of thousands of micron-size ‘staple-pins’ and their low peeling angles to enhance the adhesive forces required to peel the synthetic attachment discs. The present invention provides a unique strategy for designing new adhesives that use very little material for various biomedical and material science applications.

Abstract: The present invention is directed to synthetic attachment discs made from adhesive nanofibers and/or microfibers that are capable of attaching long fibers to a wide variety of surfaces, and related methods for forming and using them. The synthetic attachment discs of the present invention use very little material relative to prior art systems, while producing a very strong attachment force. Experimental and theoretical evidence are provided to confirm the advantages of thousands of micron-size ‘staple-pins’ and their low peeling angles to enhance the adhesive forces required to peel the synthetic attachment discs. The present invention provides a unique strategy for designing new adhesives that use very little material for various biomedical and material science applications.

Abstract: A method of preparing a fiber with periodically spaced beads includes the steps of: coating a base fiber with a settable coating; thereafter allowing the settable coating to form periodically spaced beads on the base fiber; and stabilizing the periodically spaced beads into periodically spaced beads thus creating a fiber with beads-on-a-string morphology.