Abstract: Membership information for participating computer systems participating in a multi-party conferencing session is distributed by intermittently exchanging link databases with one or more neighbor computer systems. A link database includes one or more link state records, each link state record identifying a participating computer systems and a list of neighbor computer systems that are logically linked to the participating computer system. When a new computer system joins or a participating computer system leaves the multi-party session this joining or leaving change is reflected in the link databases of corresponding neighbor computer systems. As the neighbor computer systems exchange link databases, the change is eventually propagated to all the participating computer systems.

Abstract: A multi-party application layer session, such as, for example, an electronic conference, is configured to make efficient use of resources associated with lower layer connections that connect computer systems participating in the multi-party application layer session. In response to receiving an invitation to join a multi-party application layer session, a joining computer system calculates a closeness metric value at least to one or more zones of the multi-party application layer session. A closeness metric value is calculated from measured and/or pre-configured characteristics of lower layer connections. The joining computer system identifies an application layer connection point within a specified threshold of closeness to the joining computer system. The joining computer system establishes an application layer connection to the identified application layer connection point.

Abstract: Halogenated and sulfonated azodyes provide improved resistance to fading when washed by aqueous peroxy wash liquors.

Abstract: Reactive disazo dyes of the formula (1) wherein each R independently is RA or RB where RA is a group of the formula (2), RB is a group of the formula (3) in which R1, R2, R3, R4, R5 and R6 are as defined in the description and Y is a labile atom or group. The dyes may be used for dyeing, printing or ink-jet printing of textile materials, leather, paper, coated paper, hair or film.

Abstract: An ink composition comprising a water-soluble reactive dye comprising at least three chromophoric groups linked to a polyamine; and a medium comprising at least one of a low melting point solid, an organic solvent and a mixture of water and one or more water-soluble organic solvent(s).

Abstract: The present invention relates to a water-soluble reactive dye of the formula N(Z).sub.3, wherein each Z independently has the formula (III): ##STR1## wherein m, Q, Y and D are defined in the claims. The present invention also relates to a process for coloring a substrate that includes applying to the substrate the water-soluble reactive dye of the above formula at a pH above 7.

Abstract: The present invention provides the blue dyestuffs of the following formula (I), ##STR1## wherein R.sub.1, R.sub.2, X, X.sub.1, X.sub.2, Y, and Z are defined in this document. These kinds of dyestuffs are suitable for dyeing and printing of materials containing either cellulose fibers, such as cotton, synthetic cotton, hemp, and synthetic hemp, or synthetic polyamide and polyurethane fibers, such as wool, silk, and nylon.

Abstract: A process for coloration of a substrate comprising applying thereto at a pH above 7 a water-soluble reactive dye comprising at least three chromophoric groups linked to a polyamine. Also claimed are dyes suitable for use in the process.

Abstract: The present invention provides the reactive formazan dyestuffs of the following formula (I), ##STR1## wherein m, Y, R, X.sub.1, X.sub.2, and M are defined in this document. These kinds of dyestuffs have deep-dyeing ability, and they are suitable for dyeing and printing of materials containing either cellulose fibers, such as cotton, synthetic cotton, hemp, and synthetic hemp.

Abstract: An ink composition comprising a medium comprising at least one of a low melting point solid, an organic solvent and a mixture of water and one or more water-soluble organic solvent(s); and a mixture of a first, second, third and fourth dye, each of which is of Formula (1) or a salt thereof: ##STR1## wherein: X is a labile or non labile atom or group;A and B are each independently an optionally substituted phenylene group;one or R.sup.1 and R.sup.2 is H and the other is sulpho;one of R.sup.3 and R.sup.4 is H and the other is sulpho;R.sup.5 and R.sup.6 are each independently C.sub.1-4 -alkyl.Also claimed is an ink jet printing process using the inks, a process for ink jet printing textile materials using the inks and a toner containing a mixture of a first, second, third and fourth dyes of the Formula (1).

Abstract: An ink composition comprising a dye containing at least one group of the Formula (1): ##STR1## wherein: W.sup.1 is --F, --OR.sup.1, --SR.sup.1 or --NR.sup.1 R.sup.2 in which R.sub.1 and R.sup.2 each independently is H, optionally substituted alkyl, cycloalkyl, optionally substituted alkenyl, optionally substituted aryl, optionally substituted aralkyl or R.sup.1 and R.sup.2 together with the nitrogen atom to which they are attached form a 5 or 6 membered ring; and a medium comprising at least one of a low melting point solid, an organic solvent and a mixture of water and one more water-soluble organic solvent(s).Also claimed is a process for ink jet printing using the inks, a process for ink jet printing of textiles using the inks and a toner containing a dye with at least one group of Formula (1).

Abstract: A compound of Formula (1) and salts thereof. ##STR1## wherein: A is optionally substituted phenyl;E is optionally substituted phenylene;R.sup.1 is H or optionally substituted alkyl;R.sup.2 is H or optionally substituted alkyl andR.sup.3 is H, optionally substituted alkyl, optionally substituted alkoxy or optionally substituted aryl, orR.sup.2 and R.sup.3 taken together with the N atom to which they, are attached from an optionally substituted piperidine or morpholine ring;Q is optionally substituted pyridinium; andm is 0 or 1.

Abstract: Thioaminophosphazenes containing at least one group of the formula: ##STR1## in which R is H, optionally substituted monovalent hydrocarbyl or optionally substituted divalent hydrocarbyl joining together two nitrogen atoms,R.sup.2 is optionally substituted hydrocarbyl, and represented by the formula: ##STR2## WHEREIN N = 1 TO 100, Y.sup.1 and Y.sup.2 together represent O or S, or each independently represents a monovalent substituent selected from Cl, Br, optionally substituted hydrocarbyl, optionally substituted hydrocarbyloxy and ##STR3## where R has the above meaning and R.sup.1 is H, optionally substituted hydrocarbyl or --SR.sup.2, A is a monovalent substituent of the class defined for Y.sup.1, B is H, R.sup.2, SR.sup.2, COR.sup.2 or SO.sub.2 R.sup.2, or if n is 3 or more, A and B together may represent a direct link between --P=N-- units in a cyclic structure.The products are useful in preventing premature vulcanization in vulcanizable rubber compositions.

Abstract: Hydrazides of sulphenic acids are inhibitors of premature vulcanization of sulphur curable rubbers. The hydrazides are prepared from sulphenyl chlorides or bromides and the appropriate hydrazine in presence of an acid binding agent. The most effective hydrazides are those from secondary alkyl sulphenyl chlorides or bromides, or those in which the nitrogen atom attached to the sulphenic acid group also carries an acyl group, or in which the other nitrogen atom is attached to an alkylidene or cycloalkylidene group.

Abstract: The invention provides certain N-thio substituted isothiazolin-3-one compounds and process for their manufacture, and includes their use in protecting media which are susceptible to infection by micro-organisms against such infection and the suppression of infection in media already infected. These compounds provide a quicker kill of micro-organisms than the parent isothiazolin-3-ones.

Abstract: Amides of phosphorus-containing thioacids are reacted with sulphenyl halides to give phosphorus-containing thioacid amides in which one or more of the nitrogen atoms carries a substituent attached through a sulphur atom. These substituted amides are inhibitors of premature vulcanisation in rubbers. The most effective compounds carry a secondary alkylthio or cycloalkylthio on each nitrogen atom.

Abstract: Amides of phosphorus-containing acids are reacted with sulphenyl halides to give phosphorus-containing acid amides in which one or more of the nitrogen atoms carries the appropriate substitutent attached through a sulphur atom. These substituted amides are inhibitors of premature vulcanisation in rubbers. The most effective compounds are arylamides substituted by secondary alkylthio groups.