Abstract: Pressure sensitive adhesives that include hyperbranched silsesquioxane-core polymers are described. Also described are various methods for producing the noted polymers and pressure sensitive adhesives. In addition, a variety of articles including tapes utilizing the pressure sensitive adhesives are described.

Abstract: Pressure sensitive adhesives that include hyperbranched silsesquioxane-core polymers are described. Also described are various methods for producing the noted polymers and pressure sensitive adhesives. In addition, a variety of articles including tapes utilizing the pressure sensitive adhesives are described.

Abstract: A method is disclosed for producing a polyurethane film including the steps of depositing a prepolymer composition, drying the prepolymer composition, and crosslinking the propolymer composition.

Abstract: Pressure sensitive adhesives that include hyperbranched silsesquioxane-core polymers are described. Also described are various methods for producing the noted polymers and pressure sensitive adhesives. In addition, a variety of articles including tapes utilizing the pressure sensitive adhesives are described.

Abstract: Hydrophilic adhesive compositions are disclosed that contain a surfactant that is miscible, but not fully soluble in the polymer matrix of the adhesive. This permits the surfactant to continuously replenish at the surface of the adhesive as other surfactant is removed, such as when it is carried away by an aqueous sample flowing over that surface in an in-vitro diagnostic device, resulting in adhesive compositions that are inherently hydrophilic on their surfaces and do not rely on the bloom mechanism of known hydrophilic adhesives. This provides greater design options for in-vitro diagnostic device manufacturers, including the use of hydrophilic adhesive spacers in lieu of or in combination with hydrophilic top covers.

Abstract: Hydrophilic adhesive compositions are disclosed that contain a surfactant that is miscible, but not fully soluble in the polymer matrix of the adhesive. This permits the surfactant to continuously replenish at the surface of the adhesive as other surfactant is removed, such as when it is carried away by an aqueous sample flowing over that surface in an in-vitro diagnostic device, resulting in adhesive compositions that are inherently hydrophilic on their surfaces and do not rely on the bloom mechanism of known hydrophilic adhesives. This provides greater design options for in-vitro diagnostic device manufacturers, including the use of hydrophilic adhesive spacers in lieu of or in combination with hydrophilic top covers.

Abstract: A tape is disclosed. The tape includes a metallic foil, an adhesive layer laminated on one surface of the metallic foil and a protective polymeric coating laminated on an opposing second surface of the metallic foil. The protective coating comprises an anti-corrosion agent. The protective coating shields the metallic foil from corrosion and other drawbacks that can occur by environmental exposure. The tape readily can be employed as a busbar tape in photovoltaic cells to provide a cost-effective substitute for the tin-coated copper currently used there.

Abstract: Pressure sensitive adhesives for use primarily in medical applications are disclosed. The pressure sensitive adhesives are urethane elastomeric adhesives that include a polyurethane polymer and a compatible tackifier and/or compatible plasticizer to achieve an adhesive having a predetermined compliance. The result is a pressure sensitive adhesive for application to skin that can eventually be removed with very little trauma to the skin and with a low pain rating, but which still exhibits very good peel strength when used to construct an article in which the adhesive is adhered to human skin.

Abstract: A pressure sensitive adhesive includes a substantially continuous polymer phase having pressure sensitive adhesive properties, and a plurality of pores arranged within the substantially continuous polymer phase and disposed to permit fluid to pass from a first side through at least a portion of the plurality of pores to a second side. The plurality of pores is substantially resistant to cold flow. A method of forming a porous pressure sensitive adhesive tape includes providing a solution for forming an adhesive having pressure sensitive adhesive properties, the solution including a pore forming material, casting a film comprising the solution, laminating a liner on the film, and exposing the adhesive to an energy source to form pores in the adhesive and cure the adhesive to form the pressure sensitive adhesive tape.

Abstract: A pressure sensitive adhesive is provided which is comprised of at least one radiation cured oligomer and/or monomer which is cured in situ on a substrate in the form of a coating. The adhesive comprises an insoluble polymer which comprises a plurality of polyether segments comprising —CaH2aO— repeat units, wherein a is an integer of 1 to 4, with the segments comprising from about 20 to about 85 percent by weight of polymer.

Abstract: A transformable pressure sensitive adhesive composition comprised of from about 15 to about 80% by weight of a polymer having a softening point greater than 60° C.; from about 20 to about 85% by weight of a polymerizable resin having a softening point less than 30° C.; a latent initiator in an amount sufficient to cause a reaction between said polymer and said resin; and optionally, a crosslinking agent. The transformable pressure sensitive adhesive has particular applicability in connection with organic light emitting diode display devices, light emitting diode display devices, medical diagnostic testing devices, flexible or rigid LCD display devices, plasma display devices, and electrochromic devices.

Abstract: A novel crosslinkable ambifunctional perfluorinated polyetheris provided wherein the polyether is defined by the formula X1—(CaF2aO)n—X2 where X1 and X2 are different functional terminal groups which are capable of forming a crosslinked perfluorinated polyether by addition, condensation or ring-opening reaction, and n ranges from 1 to 2000 and a is an integer of from 1 to 4. The mole ratio of X1 and X2 is 1:1. A release film may be formed from the cross-linked perfluorinated polyether.

Abstract: A novel crosslinkable ambifunctional perfluorinated polyetheris provided wherein the polyether is defined by the formula X1—(CaF2aO)n—X2 where X1 and X2 are different functional terminal groups which are capable of forming a crosslinked perfluorinated polyether by addition, condensation or ring-opening reaction, and n ranges from 1 to 2000 and a is an integer of from 1 to 4. The mole ratio of X1 and X2 is 1:1. A release film may be formed from the cross-linked perfluorinated polyether.

Abstract: A novel crosslinkable ambifunctional perfluorinated polyetheris provided wherein the polyether is defined by the formula X1—(CaF2aO)n—X2 where X1 and X2 are different functional terminal groups which are capable of forming a crosslinked perfluorinated polyether by addition, condensation or ring-opening reaction, and n ranges from 1 to 2000 and a is an integer of from 1 to 4. The mole ratio of X1 and X2 is 1:1. A release film may be formed from the cross-linked perfluorinated polyether.

Abstract: A pressure sensitive adhesive tape is provided having a silicone-free release layer, said tape comprising (1) at least one backing layer; (2) at least one pressure sensitive adhesive layer, and (3) at least one silicone-free release layer, said release layer comprising a crosslinked poly(alkylene oxide), said poly(alkylene oxide) being defined by the formula X1—(O—R)n—OX2 where X1 and X2 are terminal groups at least one of which permits crosslinking of said poly(alkylene oxide), n ranges from 1 to 200,000, R is a straight or branched alkylene group having the formula (CR1R2)m where m is an integer from 1 to 10 and R1 and R2 may independently be hydrogen and C1-3 alkyl.