Abstract:
Compounds of the formula where Y is a tertiary group, X is hydrogen or a leaving group, and Q is hydrogen, amidino, alkyl or aryl, there being present in Y or Q a ballasting group which comprises 10 to 30 carbon atoms, exhibit a high secondary absorption in the blue region of the visible spectrum and are useful couplers in chromogenic monochrome negative material.
Abstract:
Compounds of the formula wherein L is a direct bond or consists of a chain of carbon atoms or of a divalent ring system, R 1 to R 4 are hydrogen or alkyl, R 5 or R 6 are hydrogen, alkyl or aryl, or R 5 together with R 6 complete a ring system, and R 7 is hydrogen or a group of the formula wherein L, R 5 and R 6 are as defined. These compounds are useful developing agents for activation processing.
Abstract:
Lichtempfindliches Aufzeichnungsmaterial, enthaltend auf einem Träger
(I) eine bildaufzeichnende Schicht mit
(a) einem Umsetzungsprodukt aus Verbindungen der Formel worin T 1 und T 2 Alkyl oder zusammen Alkylen bedeuten, T 3 Wasserstoff oder Alkyl, T 4 Wasserstoff und n 1 bis 20 ist, mit einem vorgegebenen Polymer, (b) einem Homopolymer aus Verbindungen der Formel (1), worin T 4 (Meth-)Acryloyl ist, oder (c) einem Copolymeren aus Verbindungen der Formel (1), worin T 4 (Meth-)Acryloyl ist, und äthylenisch ungesättigten Comonomeren ist, und
(II) eine Antihaloschicht mit UV-Licht absorbierenden Pyrazolonfarbstoffen.
Nach Belichtung, Entwicklung und Wässerung des Materials erhält man Polymerbilder hoher Auflösung, die gegebenenfalls noch angefärbt werden können.
Abstract:
A method of providing on a substrate a protected binder layer characterised in coating an assembly containing on a transparent flexible plastics material film support a binder layer containing particles of less than 10 mu m in size and an adhesive layer and adhering said assembly to a substrate. The assemblies coated in the substrate are highly translucent.
Abstract:
Compounds of the formula where Y is a tertiary group, X is hydrogen or a leaving group, and Q is hydrogen, amidino, alkyl or aryl, there being present in Y or Q a ballasting group which comprises 10 to 30 carbon atoms, exhibit a high secondary absorption in the blue region of the visible spectrum and are useful couplers in chromogenic monochrome negative material.
Abstract:
Photographic material which comprises in at least one silver halide emulsion layer or a layer or layers adjacent thereto at least one substituted hydroquinone compound of the formula where R is hydrogen or optionally substituted alkyl, aryl or a heterocyclic group, R 2 , R 3 , R 4 and R 5 are each hydrogen, halogen or optionally substituted alkyl, x is 0 or 1, y is 0 or 1, and R 1 is hydrogen or a group of the formula where R, x and y are as just defined.
Abstract:
A photochromic assembly which comprises coated on a self-supporting flexible plastics material sheet a binder layer having dispersed therein photochromic glass beads, the refractive indexes of the binder and said beads being essentially the same. The assembly can be used as a window covering for green houses e.g., to control u.v.-radiation and glare.
Abstract:
An assembly for monitoring ionising radiation which comprises coated on a base a binder layer containing a polychlorinated hydrocarbon and a colour former. The assembly can be used to monitor levels of radiation of from 0.1 MRads to 10.0 MRads.