Abstract: Composition comprising (a) susceptors having the capability of absorbing microwave energy, said susceptors comprising a particulate substrate substantially non-reflective of microwave energy and a coating capable of absorbing microwave energy, and (b) a matrix substantially non-reflective of microwave energy. Susceptors are typically particles having a thin-film coating thereon. The matrix typically comprises polymeric or ceramic materials that are stable at temperatures conventionally used in microwave cooking. The composition allows reuse of the susceptors, eliminates decline in heating rate, eliminates arcing, allows the heating rate to be controlled, allows overheating to be controlled, and allows formation of microwave heatable composite materials having very low metal content.

Abstract: An electrical connector adapted for placement on a single edge of a thin film device having an electrically responsive layer to deliver electric current from a power supply to at least one electrode in electrical contact with the electrically responsive layer. The electrical connector extends part way into the electrically responsive thin film layer. The electrically responsive thin film can be a liquid crystal or polymer dispersed liquid crystal, an electroluminescent layer, or an electrochromic layer.

Abstract: Composition comprising (a) susceptors having the capability of absorbing microwave energy, and (b) a matrix substantially non-reflective of microwave energy. The susceptors comprise a particulate substrate having a thin-film coating thereon. The particulate substrate is substantially non-reflective of microwave energy and the coating is capable of absorbing microwave energy. The matrix typically comprises polymeric or ceramic materials that are stable at temperatures conventionally used in microwave cooking. The composition allows reuse of the susceptors, eliminates decline in heating rate, eliminates arcing, allows the heating rate to be controlled, allows overheating to be controlled, and allows formation of microwave heatable composite materials having very low metal content.

Abstract: Radiation-curable, tackifier-free compositions are provided which contain: (i) a blend of certain acrylate esters and monoethylenically-unsaturated copolymerizable monomers; (ii) certain .alpha.-olefin polymers; and (iii) a photoinitiator and optionally, a crosslinker. Pressure-sensitive adhesives having good adhesion to both low and high energy surfaces as well as possessing excellent low and high temperature performance properties are prepared by exposing the radiation-curable compositions to light having a wavelength in the range of from about 280 to 400 nm.

Abstract: The invention relates to a foamlike pressure-sensitive adhesive tape comprising a flexible carrier supporting one or more pressure-sensitive adhesive layers, at least one layer of the pressure-sensitive adhesive having pigment-coated microbubbles dispersed therein having an average diameter from 5 to 200 micrometers, wherein the coat comprises pigment particle aggregates having an average pigment aggregate size being from about 0.5 microns to about 5 microns.The invention further relates to pigment-coated microbubbles, and to a method for making coated microbubbles involving rolling the pigment and the microbubbles in a cylindrical container with two or more mixing rods having lengths at least about equal to the interior diameter of the container, and a combined surface area at least about 5% of the interior surface area of the container.

Abstract: A pressure-sensitive adhesive tape can be produced by photopolymerization and yet its pressure-sensitive adhesive layer can have a dark appearance when it contains a pigment or dye plus finely divided hydrophobic silica. As compared to a tape which is identical except for omission of the hydrophobic silica, the adhesive layer of the tape is substantially darker and usually of substantially more intense color. Furthermore, the tape exhibits better adhesive properties than do otherwise identical tapes containing no silica. The pressure-sensitive adhesive preferably is an acrylic pressure-sensitive adhesive and may be filled with glass microbubbles which afford a foamlike appearance and character.

Abstract: The invention primarily concerns a pressure-sensitive adhesive tape, the adhesive layer of which is filled with glass microbubbles and has a dark appearance by virtue of (1) the microbubbles are stained glass which preferably is dark, and (2) dispersed throughout the adhesive layer is a pigment or dye which preferably is dark. More broadly, the invention concerns any coherent article filled with stained-glass microbubbles. The glass of the microbubbles preferably has an ultraviolet window, permitting the article to be made by photopolymerizing a matrix filled with the microbubbles.

Abstract: A pressure-sensitive adhesive tape having a camouflaged appearance has a cellular of foamlike pressure-sensitive core layer and at least one relatively thin, dense, pigmented pressure-sensitive adhesive surface layer. The thickness of the core layer may be about 0.1 mm and that of a surface layer about 0.03 mm. The surface layer of such a composite tape appears to be more intense in color than does either the core layer or the surface layer by itself. When viewed edgewise, the composite tape appears to present a color that is more intense than one would expect from viewing the edges of the core layer and surface layer by themselves.

Abstract: The invention primarily concerns a pressure-sensitive adhesive tape, the adhesive layer of which is filled with glass microbubbles and has a dark appearance by virtue of (1) the microbubbles are stained glass which preferably is dark, and (2) dispersed throughout the adhesive layer is a pigment or dye which preferably is dark. More broadly, the invention concerns any coherent article filled with stained-glass microbubbles. The glass of the microbubbles preferably has an ultraviolet window, permitting the article to be made by photopolymerizing a matrix filled with the microbubbles.

Abstract: The invention concerns glass microbubbles having an inorganic thin-film coating not exceeding about 10 nm in thickness, especially a coating of a metal, a metalloid, or an alloy thereof. When dispersed throughout a matrix such as a polymer, the coated glass microbubbles can afford surprisingly good hiding power while also imparting esthetically pleasing colors to otherwise transparent articles.

Abstract: The invention primarily concerns a pressure-sensitive adhesive tape, the adhesive layer of which is filled with glass microbubbles and has a dark appearance by virtue of the microbubbles having a thin-film coating having an average thickness from 0.05 to 30 nm. A preferred thin-film coating is silver which can be applied by sputtering or by vapor deposition, preferably to an average thickness of between 1 and 10 nm.

Abstract: A cellular pressure-sensitive adhesive membrane comprising 15 to 85% voids that does not collapse after being briefly compressed, has remarkably good adhesion on contact with rough surfaces and remarkably good flexibility and conformability at sub-freezing temperatures.

Abstract: Photopolymerizable mixture of (a) acrylic monomer such as 95 parts of an alkyl acrylate and 5 parts of acrylic acid and (b) 0.01 to 2 parts by weight of a chromophore-substituted-halomethyl-s-triazine such as ##STR1## The novel mixtures are primarily useful as pressure-sensitive adhesive mixtures.

Abstract: Photopolymerizable mixture of (a) acrylic monomer such as 95 parts of an alkyl acrylate and 5 parts of acrylic acid and (b) 0.01 to 2 parts by weight of a chromophore-substituted-halomethyl-s-triazine such as ##STR1## The novel mixtures are primarily useful as pressure-sensitive adhesive mixtures.

Abstract: Pressure-sensitive adhesive tape, the adhesive layer of which is produced from a mixture of (1) a pressure-sensitive adhesive alkyl acrylate polymer and (b) a polynuclear-chromophore-substituted halomethyl-s-triazine such as ##STR1## which has been exposed to ultraviolet radiation to cause the polymer to become crosslinked.