The present disclosure relates to a pressure sensitive adhesive assembly comprising at least a first pressure sensitive adhesive layer comprising a hollow non-porous particulate filler material, wherein the surface of the hollow non-porous particulate filler material is provided with a hydrophobic surface modification. The present disclosure also relates to a method of manufacturing such a pressure sensitive adhesive assembly.

The invention relates to adhesive strips consisting of at least four, particularly precisely four layers, comprising: a layer A having an upper side and a lower side consisting of a foamed adhesive substance containing a self-adhesive acrylate substance; a layer B consisting of a film carrier, layer B being arranged on the lower side of layer A, at least the main surface which faces layer A, preferably both main surfaces of the film carrier, being etched, the surface of layer A and the surface of layer B being in direct contact with each other; a layer C consisting of a self-adhesive substance, arranged on the upper side of layer A and containing a self-adhesive acrylate substance; and a layer D consisting of a self-adhesive substance, arranged on the side of layer B opposite layer A and containing a self-adhesive acrylate substance.

A low-cost, multi-function adhesive wireless communications and transducer platform with a form factor that unobtrusively integrates one or more transducers and one or more wireless communication devices in an adhesive product system. In an aspect, the adhesive product system integrates transducer and wireless communication components within a flexible adhesive structure in a way that not only provides a cost-effective platform for interconnecting, optimizing, and protecting the constituent components but also maintains the flexibility needed to function as an adhesive product that can be deployed seamlessly and unobtrusively into various applications and workflows, including sensing, notification, security, and object tracking applications, and asset management workflows such as manufacturing, storage, shipping, delivery, and other logistics associated with moving products and other physical objects.

The present invention refers to a method for producing preferably water-based polymeric compositions, preferably dispersions (i.e. latices), which are particularly useful as or in adhesives, especially pressure-sensitive adhesives (PSAs), particularly pressure-sensitive adhesives removable under neutral or basic (i.e. alkaline) conditions, as well as to the polymeric compositions thus produced and to their various applications, including the copolymers comprised by these polymeric compositions.

Disclosed herein are hard coat compositions and composite films including a thermoplastic polyurethane. A hard coat composition includes a thermoplastic polyurethane having a hard segment content of 80 percent by weight or greater. The thermoplastic polyurethane is a reaction product of a) a diisocyanate; b) a polyol optionally comprising a cyclic structure; and c) a chain extender. At least one of the polyol or the chain extender comprises at least one side chain and at least one of the diisocyanate or the chain extender comprises a cyclic structure. A composite film includes 1) a hard coat layer having opposing first and second major surfaces; and 2) a second layer disposed on at least a portion of the hard coat layer. These materials can serve decorative and/or protective functions while displaying both good elongation at moderate temperatures and high hardness.

A curable silicone-(meth)acrylate pressure sensitive composition is curable via hydrosilylation reaction to form a silicone-(meth)acrylate pressure sensitive adhesive with an initial adhesion. When the silicone-(meth)acrylate pressure sensitive adhesive is exposed to actinic radiation, the resulting silicone-(meth)acrylate adhesive has a subsequent adhesion, which is higher than the initial adhesion.

A method for producing a pressure-sensitive adhesive sheet of the present invention includes: forming a pressure-sensitive adhesive layer 10 formed of a transparent, light-cured base pressure-sensitive adhesive material on a support S1; irradiating the pressure-sensitive adhesive layer 10 with an ultraviolet ray U to cure the pressure-sensitive adhesive layer; providing a solution 12 of an ultraviolet absorbing agent 11; applying the solution 12 to one of opposite surfaces of the cured pressure-sensitive adhesive layer 10a to cause the ultraviolet absorbing agent 11 contained in the solution 12 to infiltrate from the one surface in a thickness direction of the pressure-sensitive adhesive layer 10a; and drying the pressure-sensitive adhesive layer 10a.

The present utility model provides an easy-to-clean protective film, which belongs to the technical field of protective films for vehicles and other vehicles, and can solve the problems that lasting scratches are easily caused to the existing vehicle coatings and surface stains are not easy to clean. The easy-to-clean protective film provided by the present utility model comprises a polyvinyl chloride (PVC) bottom film and an easy-to-clean layer consisting of silicon dioxide particles, wherein the water contact angle of the easy-to-clean layer is small and thus the adhesive force of dust and oil stains can be reduced. After the surface of the easy-to-clean layer is contaminated by dust and oil stains, the dust and oil stains can be easily cleaned with a simple cleaning. The easy-to-clean protective film provided by the present utility model is suitable for use as protective coatings of various substrates, especially for attachment to the body surfaces of vehicles such as automobiles.

The present invention relates to a pressure-sensitive adhesive composition containing at least one polymer and at least one polyester polyol based on betulin. The invention also relates to the use of the pressure-sensitive adhesive composition according to the invention, to a method for preparing the pressure-sensitive adhesive composition, and to a method for bonding at least two substrates. Finally, the invention relates to an article comprising the pressure-sensitive adhesive composition according to the invention.

Adhesive composition and articles are described comprising a carrier substrate (e.g. release liner or backing) and an adhesive composition disposed on the carrier substrate. The adhesive composition comprises at least 20 wt.% of a polymer; unpolymerized cyclic olefin; and a (e.g. latent) ring opening metathesis polymerization catalyst or precatalyst thereof. The polymer may have a Tg less than 25° C. and/or may be an acrylic polymer. Also described is a method of bonding.