Abstract: A radiation sensitive composition containing an adduct of a diazonium resin having pendant diazonium groups, with a sulfonated acrylic copolymer having pendant sulfonate groups. The sulfonated acrylic copolymer contains an acrylic moiety and a sulfonated styryl or acrylic moiety. The copolymer may optionally contain styryl moieties. The composition is useful as a radiation sensitive layer in imaging elements for graphic arts applications and is particularly useful in preparing durable, long-wear, printing plates.

Abstract: A computer system architecture implementing multiple central processing units, each including a split instruction and operand cache, and that provides for the management of multiple copies (line pairs) of a memory line through the use of a line pair state is described. Systematic management of memory lines when transferred with respect to instruction and operand data cache memories allows the integrity of the system to be maintained at all times. The split cache architecture management determines whether a memory line having a first predetermined system address is present within both the instruction and operand cache memories or will be upon move-in of a memory line. Address tag line pair state information is maintained to allow determinations of whether and where the respective memory line pair members reside. The architecture implements the management of the line pairs on each transfer of a memory line to any of the split caches of the system.

Abstract: Bypassing of data from a main storage unit to an instruction and operand processing unit around an intermediate storage unit improves performance in a data processing system. The instruction and operand processing unit supplies requests for operands to the intermediate storage unit or cache. If the line is missing from the cache, the request operand is retrieved from the main storage unit. A bypass data path is connected between the main storage unit, prior to error detecting means in the cache, and the instruction and operand processing unit for transferring requested operands to the instruction and operand processing unit directly. Control, coupled to receive requests for operands and to the instruction and operand processing unit, signals the instruction and operand processing unit to receive the requested operands from the bypass data path when the data includes a requested operand.

Abstract: A process for preparing polyvinyl phosphonic acid by the steps of polymerizing bis(2-chloroethyl) vinyl phosphonate in the presence of a free radical initiator or catalyst, such as dicumyl peroxide. The resulting poly bis(2-chloroethyl) vinyl phosphonate is then subjected to acid hydrolysis to obtain high purity polyvinyl phosphonic acid having measurable and controllable molecular weight distribution.

Abstract: The invention features a new series of triazine compounds which are characterized by their ability to generate free radicals upon irradiation in a desired optical region, such that they are useful in the fabrication of lithographic plates having improved exposure speed, development, print-out, and contrast characteristics.

Abstract: An improved method for the preparation of chromophore-substituted vinyl-halomethyl-s-triazines especially 2-(p-methoxystyryl)-4,6-bis-(trichloromethyl)-s-triazine. In the known preparation of these compounds, a two step procedure is utilized wherein an intermediate reaction product has to be isolated. This step of separating the intermediate is eliminated in the present process by dissolving the crude reaction product obtained in the first step in toluene, removing excess hydrogen chloride gas and catalysts by purging the reaction product solution with an inert gas, and then reacting p-anisaldehyde with the toluene solution of the reaction product mixture using piperidinium acetate catalyst to obtain 2-(p-methoxystyryl)-4,6-bis-(trichloromethyl)-s-triazine.As a further improvement of the art the Knoevenagel-type condensation is run until no further water is evolved. At this point the product formed is isolated by filtration and a like amount of catalyst as a second charge is added.