A transparent adhesive sheet for optics, which is capable of satisfying both adhesion and rework property, in view of the above problems of prior art. A production method of a silicone-based transparent adhesive sheet for optics for assembling the optical components, includes a step of forming a surface activation treated surface, in which peel strength after laminating onto an adherend increases with time, as compared with peel strength before lamination. The surface activation treatment is performed by using UV-ray irradiation on at least a part or the entire surface of an adhesive face contacting with the adherend of said transparent adhesive sheet for optics.

There is provided herein a silicone pressure sensitive adhesive composition comprising (A) a linear olefinically-functional polyorganosiloxane copolymer gum possessing a degree of polymerization in excess of 3,000; (B) a silicone resin including at least one M.sup.H unit and at least one Q unit; and, (C) a hydrosilylation catalyst, wherein the composition is in the substantial absence of low molecular weight siloxane having a degree of polymerization of less than 3,000 and wherein the composition has low peel adhesion to and clean removal from a substrate. There is also provided a protective film including the same as well as a method of making the protective film.

Some embodiments of the present disclosure relate to a roofing putty. In some embodiments, the roofing putty is a formulation that comprises at least one polysiloxane, at least one silane, and at least one filler. Some embodiments of the present disclosure relate to a system comprising the roofing putty and at least one roof substrate. Some embodiments of the present disclosure relate to a method of using the roofing putty, such as, but not limited to, by disposing the roofing putty on at least one roof substrate.

Composite materials and methods of producing the same are provided. In some embodiments, the composite materials can comprise a polymer substrate, an intermediary material, such as a metal or oxide, mechanically attached onto the polymer substrate, and an elastomer bonded to the polymer substrate on the side of the polymer substrate comprising the intermediary materials. The elastomer can be bonded to the polymer substrate irreversibly, where the elastomer and the polymer substrate cannot be separated at their interface without breaking either the elastomer or the polymer substrate. In some embodiments, a primer and/or an epoxy can also be used. Uses of material sputtering or sputtered materials are also provided to bond a parylene substrate and silicone elastomer, or to enhance the relative strength of the bonding between the two. In addition, composite materials, and the use thereof, involving a parylene substrate, an elastomer receptacle, and liquid silicone are provided.

A multilayer tape assembly is described which can be used with insulation jacketing and particularly for self sealing lap (SSL) applications. The tape assembly includes two adhesive layers with associated carrier and release layers in conjunction with a differential release system. Various methods of use are also described.

An atraumatic detection/stimulation lead is disclosed. The lead includes at least one microcable having a core cable comprising a plurality of elementary metal strands. One of the microcables has provided at its distal end an atraumatic protection device. The atraumatic protection device includes a protective coating on the distal ends of the elementary strands of the microcable, and the protective coating is covered by a protective cap of deformable material. The protective cap may be a conical distal end adapted to deform and axially flatten out. The microcable may have an overall diameter less than or equal to 1.5 French (0.50 mm).

An adhesive article that remains securely bonded to a substrate until a stimuli is applied. The article may be embodied as an adhesive tape, a bandage, or as other articles. The stimuli may be a change in temperature or application of a reduction that causes a structure within the article to break, creak, or otherwise disrupt to expose the adhesive to a solvent, such as via a difference in Coefficient of Thermal Expansion (CTE) or by exposing the article to a glass transition temperature.

A silicone pressure sensitive adhesive with amphiphilic copolymers for maintaining adhesion in a moist environment. The amphiphilic copolymers for silicone adhesives include at least one silicone moiety and at least one hydrophilic segment. Such adhesives are applicable to securing medical devices to human skin.

A pressure sensitive adhesive film comprises a substrate film and a pressure sensitive adhesive (PSA) layer formed on a surface of the substrate film. The PSA layer is formed from a silicone composition comprising: a diorganopolysiloxane having at least two alkenyl groups in a molecule and having a viscosity at 25° C. of from 10,000 to 1,000,000 mPa.Math.s; (B) a diorganopolysiloxane having at least one alkenyl group in a molecule, and being raw and rubber-like at 25° C. or having a viscosity at 25° C. of more than 1,000,000 mPa.Math.s; (C) an organopolysiloxane resin represented by the following average unit formula: (R.sup.1.sub.3SiO.sub.1/2).sub.x(SiO.sub.4/2).sub.1.0, wherein each R.sup.1 represents a halogen-substituted or unsubstituted monovalent hydrocarbon group free from an alkenyl group and x is a number from 0.5 to 1.0; (D) an organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule; (E) silica fine powder; and (F) a hydrosilylation catalyst.

A pressure sensitive adhesive film comprises a substrate film and a pressure sensitive adhesive (PSA) layer formed on a surface of the substrate film. The PSA layer is formed from a silicone composition comprising: a diorganopolysiloxane having at least two alkenyl groups in a molecule and having a viscosity at 25° C. of from 10,000 to 1,000,000 mPa.Math.s; (B) a diorganopolysiloxane having at least one alkenyl group in a molecule, and being raw and rubber-like at 25° C. or having a viscosity at 25° C. of more than 1,000,000 mPa.Math.s; (C) an organopolysiloxane resin represented by the following average unit formula: (R.sup.1.sub.3SiO.sub.1/2).sub.x(SiO.sub.4/2).sub.1.0, wherein each R.sup.1 represents a halogen-substituted or unsubstituted monovalent hydrocarbon group free from an alkenyl group and x is a number from 0.5 to 1.0; (D) an organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule; (E) silica fine powder; and (F) a hydrosilylation catalyst.