Abstract: This invention relates to water developable, negative working photosensitized sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is useful as a color proofing film which can be employed to predict the image quality from a lithographic printing process. The invention provides both overlay and transfer type proofing sheets which have good fingerprint resistance.

Abstract: There is disclosed and claimed a process whereby S(+)-ibuprofen L-lysinate salt is produced by selective precipitation from a mixture containing enantiomers of ibuprofen and L-lysine. The quantity of L-lysine is not more than about a molar equivalent of the quantity of S(+)-ibuprofen in the ibuprofen enantiomeric mixture. The mother liquors after separating the above salt are enriched in R-ibuprofen which is racemized by a novel thermal racemization process and may then be recycled.

Abstract: A white, partially translucent, metallized film article which having a flexible, heat resistant, polymeric film material with opposite sides. The film material has deposited on a first side a metal coating which is spectrally reflective and partially light transmissive in the visible region of the spectrum, is capable of transmitting from about 1% to about 70% of incident visible light cast thereon; the second side having a white outermost surface, and has a visible light opacity of from about 0.5 to about 0.98.

Abstract: In the present invention, one produces a negative-acting color proofing element comprising, sequentially, a strippable cover sheet which is transparent to actinic radiation; a crosslinked layer containing a polymer having phenolic groups; a color layer, containing a colorant, a polymeric binder, a polymerizable monomer and, optionally, a photoinitiator; a photoadhering layer, containing a linear photosensitive polymer containing ethylenically unsaturated, free-radical polymerizable groups and having a molecular weight greater than 3,000, a polymerizable monomer, and, optionally, a free radical photoinitiator; a thermoplastic adhesive layer; and a receiver sheet, at least one of the color layer and the photoadhering layer containing the photoinitiator.

Abstract: This invention relates to negative working photopolymerizable sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is useful as a color proofing film which can be employed to accurately predict the image quality from a lithographic printing process. Image development is by peel apart processing.

Abstract: A composite film article which is a flexible, heat resistant polymeric film material having a non-opaque, partially translucent white surface side, having a visible light opacity of from about 0.90 to about 0.99; and a non-opaque, black surface side having a visible light opacity of less than 1.0, a transmission density of less than about 2.0 and a thickness of less than about 5.0 microns. The article may be used as a base for images such that the images have a reduced optical dot gain.

Abstract: A photoimaged article having a protected image composed of a colored image on a support; and a thin, transparent, flexible, nonself supporting, protective layer on the surface of the image. The layer is substantially nontacky at room temperature, and has at least a major amount based on the weight of the layer of one or more thermoplastic resins of a vinyl acetal, vinyl chloride, or acrylic polymer or copolymer having a Tg of from about 35.degree. C. to about 110.degree. C. The layer is capable of being adhesively transferred directly to the image when the layer is first applied on the release surface of a temporary support, and the image and protective layer are laminated together under pressure at temperatures of between about 60.degree. C. to about 180.degree. C. with subsequent removal of the temporary support. The side of said layer opposite to the image is free from additional layers. The adhesive layer is one which does not cohesively block at temperatures of about 50.degree. C. or less.

Abstract: In one embodiment this invention provides a frequency doubling optical waveguide consisting of a substrate-supported polymeric thin film waveguiding layer, in combination with one or more polymeric cladding layers. The waveguiding layer comprises moieties which exhibit nonlinear optical properties as well as anomalous dispersion of refractive index such that, under wave propagating conditions, the effective dispersion .DELTA.N of the waveguiding layer is zero, and the fundamental and second harmonic waves are phase matched over the length of the waveguide.