Abstract: A laser crafting apparatus for directing electromagnetic radiation toward a workpiece may include various features. For example, the laser crafting apparatus may include a material support tray that is removably supported within an internal volume of the laser crafting apparatus. Further, the apparatus may include pre-filter disposed in a ventilation pathway between a workspace region of the internal volume and an extractor fan. The laser crafting apparatus may include a laser carriage assembly that houses a laser module and the assembly may include a lens tray detachably coupled to the support structure of the laser carriage assembly. In various embodiments, the laser crafting apparatus includes a lid having a radiation attenuation layer and a fire suppression layer.

Abstract: Blowing agents comprising urea dicarboxylic acid anhydride do not give rise to discoloring decomposition residues nor form acid or alkaline by-products. These blowing agents may be used for expanding thermoplastic resins.

Abstract: Water-soluble polyamines which (a) have an average molecular weight of above 1,000, (b) contain at least one grouping of the formula-- R -- Zin whichZ denotes a --COOH or --SO.sub.

Abstract: This invention relates to a new process for the production of ammonium salts of dithiocarbamic acid; the process comprising reacting bis-alkyl aminomethanes with sulphur.

Abstract: Blowing agents comprising urea dicarboxylic acid anhydride do not give rise to discoloring decomposition residues nor form acid or alkaline by-products. These blowing agents may be used for expanding thermoplastic resins.

Abstract: Compounds of the formula are disclosed: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are identical or different and represent an optionally substituted alkyl, alkenyl, cycloalkyl or an aryl group andR.sup.4 represents a monosubstituted or polysubstituted aryl group, containing at least one substituent which favours electrophilic aromatic substitution.

Abstract: Compounds of the formula ##STR1## and alkali metal or alkaline earth metal salts thereof, wherein R.sup.1 and R.sup.2 are the same or different and each is hydrogen, alkyl, alkoxy, haloalkyl, polyhaloalkyl, haloalkoxy, polyhaloalkoxy or halo; R.sup.3 is methyl, hydroxy or amino; are produced by treating the corresponding 3-cyanoquinoxaline-di-N-oxide of the formula ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are as above defined, with hydrogen sulfide or an alkali metal or alkaline earth metal salt thereof. When a salt of hydrogen sulfide is used, the resulting mercaptide product may be converted to the corresponding mercaptan by treatment with an acid to produce the corresponding 2-mercaptoquinoxaline-di-N-oxide.

Abstract: Antimicrobial compositions and uses employing benzo-1,2,4-triazines-1,4-di-N-oxides substituted in the 3-position with a substituted amino group and optionally substituted in the benzo ring are described. The compounds utilized, of which 3-(N-acetoacetylamino)benzo-1,2,4-triazine-1,4-di-N-oxide is a typical embodiment, are prepared from the corresponding 2-aminobenzo-1,2,4-triazine-1,4-di-N-oxide through alkylation or acylation.

Abstract: An N-monosubstituted formamide having the formula: ##EQU1## in which R represents an optionally substituted aliphatic, cycloaliphatic or aromatic radical; is prepared by reacting a formaldimine having the formula:H.sub.2 C = N -- Rin which R is as defined above; or a hexahydrotriazine having the formula: ##EQU2## in which R is as defined above, with hydrogen peroxide. The reaction is generally carried out at temperatures in the range of from about 0.degree. to about 100.degree. C.

Abstract: Compositions comprising a 3-amino-1,2,4-benzotriazine-1,4-di-N-oxide as the active ingredient exhibit antimicrobial activity and may be used to promote livestock growth by adding an effective amount of said composition to edible fodder.

Abstract: Imines of 2-formylquinoxaline-3-carboxylic acid-1,4-dioxides and their salts are obtained through treatment of the lactone or a salt of 2-dihydroxymethylquinoxaline-N,N-dioxide-3-carboxylic acid with a reactant bearing a free primary amino group. Veterinary feedstuffs are produced by combining a nutritious material with an imine as above described.

Abstract: 1,2,4-TRIAZINE-1,4-DI-N-oxides (1,4) useful as microbicides having the formula (I): ##SPC1##whereinX.sup.1 and X.sup.2 which may be the same or different are hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkoxy, halogen alkyl or halogen; andA is selected from the group ofI. R which is unsubstituted or substituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted aralkyl;Ii. --COR.sup.1 in which R.sup.1 is hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted aryl;Iii. --COCH.sub.2 COCH.sub.3 ; andIv. --CONHR.sup.2 where R.sup.2 is substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl or substituted unsubstituted aryl.Processes for making formula (I) compounds are also disclosed.

Abstract: 4-amino-pyrimido-(4,5,b)-quinoxaline-5,10-dioxides of the formula: ##SPC1##WhereinR is hydrogen, a straight or branched chain saturated or partially unsaturated substituted or unsubstituted aliphatic moiety or a substituted or unsubstituted cycloaliphatic moiety, are produced by reacting quinoxaline-di-N-oxide of the formula: ##SPC2##With an amine of the general formula R--NH.sub.2, wherein R is as defined, above, in a diluent, at a temperature in the range of 20.degree. to 100.degree. C.These compounds are useful for their antimicrobial activity. They exhibit activity against both gram positive and gram negative bacteria.

Abstract: 4-amino-pyrimido-(4,5,b)-quinoxaline-5,10-dioxides of the formula: ##SPC1##WhereinR is hydrogen, a straight or branched chain saturated or partially unsaturated substituted or unsubstituted aliphatic moiety or a substituted or unsubstituted cycloaliphatic moiety, are produced by reacting quinoxaline-di-N-oxide of the formula: ##SPC2##With an amine of the general formula R-NH.sub.2, wherein R is as defined, above, in a diluent, at a temperature in the range of 20.degree. to 100.degree. C.These compounds are useful for their antimicrobial activity. They exhibit activity against both gram positive and gram negative bacteria.

Abstract: Imines of 2-formylquinoxaline-3-carboxylic acid-1,4-dioxides and their salts are obtained through treatment of the lactone or a salt of 2-dihydroxymethylquinoxaline-N,N-dioxide-3-carboxylic acid with a reactant bearing a free primary amino group. Veterinary feedstuffs are produced by combining a nutritious material with an imine as above described.

Abstract: Imines of 2-formylquinoxaline-3-carboxylic acid-1,4-dioxides and their salts are obtained through treatment of the lactone or a salt of 2-hydroxymethylquinoxaline-N,N-dioxide-3-carboxylic acid with a reactant bearing a free primary amino group. Veterinary feedstuffs are produced by combining a nutritious material with an imine as above described.

Abstract: Imines of 2-formylquinoxaline-3-carboxylic acid-1,4-dioxides and their salts are obtained through treatment of the lactone or a salt of 2-dihydroxymethylquinoxaline-N,N-dioxide-3-carboxylic acid with a reactant bearing a free primary amino group. Veterinary feedstuffs are produced by combining a nutritious material with an imine as above described.

Abstract: Imines of 2-formylquinoxaline-3-carboxylic acid-1,4-dioxides and their salts are obtained through treatment of the lactone or a salt of 2-dihydroxymethylquinoxaline-N,N-dioxide-3-carboxylic acid with a reactant bearing a free primary amino group. Veterinary feedstuffs are produced by combining a nutritious material with an imine as above described.

Abstract: Imines of 2-formylquinoxaline-3-carboxylic acid-1,4-dioxides and their salts are obtained through treatment of the lactone or a salt of 2-dihydroxymethylquinoxaline-N,N-dioxide-3-carboxylic acid with a reactant bearing a free primary amino group. Veterinary feedstuffs are produced by combining a nutritious material with an imine as above described.

Abstract: A process for the preparation of a (thio)phosphoric(phosphonic) acid ester of the formula ##EQU1## in which R.sub.1 is a straight-chain or branched alkyl, alkylmercapto or alkoxy group with up to 8 carbon atoms,R.sub.2 is alkyl with 1 to 8 carbon atoms optionally substituted by chlorine,R.sub.3, r.sub.4, r.sub.5 and R.sub.