Abstract: Method of preparing a fade-resistant and abrasion-resistant colored photographic image and a novel color photographic paper therefor. A photograph on the paper is coated with adhesive, bonded to a substrate and the paper backing stripped away, leaving a low density polyethylene foil covering the reversed image.

Abstract: Pressure-sensitive adhesive tape, the adhesive layer of which is a copolymer of alkyl acrylate such as isooctyl acrylate and an acid such as acrylic acid and which differs from the prior art in its high acid content and by including a small amount of lower-alkoxylated amino formaldehyde condensate as a latent crosslinking agent. The adhesive does not become crosslinked until it is heated. After the tape has been applied and heated to crosslink the adhesive, the resultant bonds have outstanding resistance to peel forces combined with surprisingly good resistance to shear forces, especially at elevated temperatures.

Abstract: Pressure-sensitive adhesive tape, the adhesive layer of which is a copolymer of alkyl acrylate such as isooctyl acrylate and acid such as acrylic acid which differs from the prior art by including a small amount of lower-alkoxylated amino formaldehyde condensate as a latent crosslinking agent. The adhesive does not become crosslinked until it is heated. After the tape has been applied and heated to crosslink the adhesive, it exhibits excellent resistance to common organic solvents and also exceptional resistance to shear failure, especially at elevated temperatures. The adhesive has excellent electrical-insulating properties.

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: Silicone-coated release liner which, even after exposure to light in the presence of moisture, heat or both, displays release properties of less than 20 g/cm width with respect to pressure-sensitive adhesive tape. The coating contains noble metal, and the silicone polymer has substantially no residual ethylenic unsaturation. The silicone polymer is prepared by pre-reacting polydimethyl siloxane with a noble metal catalyst before adding polymethylhydrosiloxane crosslinker.

Abstract: Pressure-sensitive adhesive tape having a photopolymerized acrylate polymer adhesive which has been crosslinked by a polyacrylic-functional crosslinking monomer such as trimethyol-propane triacrylate.

Abstract: Re-usable sheet material, having a dark colored base sheet provided on each side with a microvoid layer, temporarily imageable by application of volatile liquids, is treated on the face side with oleophobic (preferably also hydrophobic) fluorochemicals. Surface contamination of the face side with oil, which would cause permanent transparentization and prevent re-use, is readily removed by placing the face side of the sheet material in contact with the back side. One use for the product is as an order blank in the fast food industry.

Abstract: Normally tacky and pressure-sensitive adhesive tape, having a composite adhesive stratum made of 2 or more separate layers in which the tape synergistically exhibits properties superior to those of a tape made with either component layer alone. One layer is a polyurethane having some adhesive properties but lacking true pressure-sensitivity. The exposed surface of the stratum is a conventional pressure-sensitive adhesive. Numerical criteria are specified for each layer.

Abstract: Pressure-sensitive adhesive transfer tape in which the adhesive is a laminate of two physically dissimilar laminae. The product is uniquely adapted to mounting vinyl roofs on automobiles.

Abstract: The corrosion resistance of reflective or transparent-reflective sheet material comprising a vapor-deposited layer of aluminum or other corrodible metal on a polymeric foil backing is enhanced by incorporating a nickel organic ultraviolet light stabilizer in a layer which overlies the metal layer. The sheet material is especially adapted for use in energy control products, where it may be adhered to, or hung in front of, a windowpane.

Abstract: Solar reflector comprising an opaque, specular metalized polymeric foil protected from corrosion and weathering by a layer of an interpolymer of (1) lower acrylate and/or methacrylate monomers and (2) minor amounts of ethylenically unsaturated lower carboxylic acid monomers.

Abstract: Microvoid-containing sheet material of the type which displays visible indicia when a liquid applied to the surface fills the microvoids. The improvement lies in making the liquid-receiving surface from particles held in pseudo-sintered juxtaposition by a thermoset binder, thereby rendering the structure resistant to inadvertent marking when it is subjected to heat, pressure, or both.

Abstract: Certain adhesive compositions which are soluble in organic solvents and insoluble in water but activatable thereby, are useful in adhering transparent polymeric foils (especially energy control sheets) to glass. The adhesives, which comprise a blend of (a) methyl vinyl ether:maleic anhydride copolymers or half esters thereof and (b) polyfunctional epoxide or aziridine crosslinker, impart excellent moisture-resistance to laminates.

Abstract: "Release on demand" pressure-sensitive adhesives and tapes which are readily detackifiable by exposure to actinic radiation. The adhesive system has an oxirane ring-bearing component blended thereinto (or preferably reacted therewith) to achieve an adhesive epoxy equivalent value of 400-900, preferably 450-700. The adhesive system also includes an effective amount of ionic photoinitiator capable of promoting the polymerization of oxirane rings.

Abstract: A pressure-sensitive adhesive tape which not only conforms well and adheres quickly to irregular substrates but also possesses excellent shear adhesion performance. These properties, normally mutually exclusive, are achieved through use of superposed plural pressure-sensitive adhesive strata, the outer stratum being significantly softer than the one lying immediately beneath it.

Abstract: A wave rod for imparting curl to human hair comprises a tubular core having an integrally formed helical fin on its peripheral surface. Hair to be set is wound along the flat-bottomed helical channel formed between successive turns of the fin. A radially extending slot in the fin at the distal end of the rod permits accommodating strands of hair somewhat longer than the channel. A semi-cylindrical key integrally fixed in the distal end of the core and extending slightly therebeyond can be used to complementarily join two rods end-to-end, thereby effectively doubling the amount of channel available.

Abstract: Pressure-sensitive adhesive tape, having an untensilized crystalline isotactic polypropylene or linear high density polyethylene film backing with a pattern of alternating ridges and valleys on one side, is especially adapted for use as a tab closure for diapers. The ridges are so disposed that, when a tab is cut from the tape, at least some of the ridges extend at an angle of 60.degree. or less to the lateral edge of the tab, thereby minimizing any tendency toward inadvertent tearing.

Abstract: Composite energy control sheet of the type wherein a transparent-reflective metal layer is coated on a self-supporting transparent polymeric foil and protectively covered with a transparent polymeric layer. The protective polymeric layer is chosen to transmit 80% or more of the normal room temperature radiant energy spectrum (about 4-40 micrometer wavelength) so that when the energy control sheet is positioned adjacent (but other than outside of) a glazing unit and oriented so that the protective layer does not contact any face of the glazing unit, heat loss from the room is significantly decreased and the cold weather performance of the sheet is greatly improved. Among the suitable polymers for the polymeric layer are polyethylene, polypropylene and polyacrylonitrile.

Abstract: A pair of pliers, having particular utility for removing a hook swallowed by a fish, is rendered buoyant by affixing a block of closed cell polymeric foam between the inner aspects of the handles.