Abstract: An infrared absorbing composition is disclosed, which contains at least one compound selected from compounds represented by formula (I) ##STR1## Compounds represented by formula (II) ##STR2## and compounds represented by formula (III) ##STR3## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.10, R.sup.11, R.sup.12, R.sup.13, R.sup.14, R.sup.17, R.sup.18, R.sup.19, R.sup.20 and R.sup.21, which may be the same or different, each represents a halogen atom, a hydrogen atom, or a substituted or unsubstituted alkyl, aryl, cycloalkyl or heterocyclic group which is bonded to the carbon atom of the benzene ring either directly or via a divalent linking group, or any pair of R.sup.1 to R.sup.5, R.sup.10 to R.sup.14, R.sup.17 to R.sup.21 having adjacent positions on the same ring combine to form a substituted or unsubstituted ring; R.sup.6 and R.sup.7, which may be the same or different, each represents an alkyl group or a substituted or unsubstituted aryl group; and R.sup.8, R.sup.9, R.sup.15, R.sup.16, R.

Abstract: New pyrazoline compounds of the formula ##STR1## in which X is 1,4-phenylene, ##STR2## if n is 1 or if R.sub.7 or R.sub.8 contains an SO.sub.3 M Radical, also a methylene or --CH.sub.2 CH(OH)--CH.sub.2 O-- group or an unbranched C.sub.1 -C.sub.4 alkyleneoxy group, a direct bond or oxygen, R.sub.1, R.sub.2 and R.sub.3 independently of one another are hydrogen, chlorine or C.sub.1 -C.sub.4 alkyl, R.sub.7 is C.sub.1 -C.sub.4 alkyl, chlorophenyl, hydrogen, phenyl or --C.sub.6 H.sub.4 --SO.sub.3 M, R.sub.8 is H, C.sub.1 -C.sub.4 alkyl, --CH.sub.2 SO.sub.3 M, carboxyl, C.sub.2 -C.sub.5 carboalkoxy, carbamoyl or carboxymethyl, R.sub.9 is H, chlorine or C.sub.1 -C.sub.4 alkyl, Ar is a phenyl radical which is unsubstituted or substituted by non-chromophores or, if X is a direct bond, also a naphthalene radical, M is hydrogen or one equivalent of a non-chromophoric cation and m and n are the number nought or 1, which can be used as fluroescent brighteners for synthetic and natural fibres, especially for polyamide.

Abstract: This invention provides novel 4H-quinolizin-4-one compounds which exhibit a selective inhibitory activity against IgE-antibody formation, and have utility for treatment of diseases associated with IgE formation in mammals, such as allergic bronchial asthma, allergic rhinitis, atopic dermatitis, hypersensitiveness, and the like.

Abstract: A prereaction mixture which is useful in the preparation of porous silica compositions with uniform pore sizes. The porous silica composition comprises a substituted nitrogen-containing siliconate, a colloidal silica and a soluble alkali silicate. By the addition of the substituted nitrogen containing siliconate to either the colloidal silica or soluble silicate, or by combining all three ingredients, a stable solution results, thereby avoiding the premature polymerization of the colloidal silica upon the addition of the soluble silicate. The soluble alkali silicate can have a metal cation which is selected from the group consisting of potassium and sodium.

Abstract: Single-compartment, self-erasing, solution-phase electrochromic devices, solutions of electrochromic compounds for use as media of variable transmittance in such devices, and electrochromic compounds for such solutions are provided. The devices of the invention are surprisingly stable to cycling between light and dark states, have continuously variable transmittance to light as a function of electrical potential applied across the solution in a device, and have transmittance that can be varied over more than a factor of 10, from clear to dark or from dark to clear, in several seconds. Thus, the devices are especially suitable as variable transmittance components of variable transmission light filters, including windows, and variable reflectance mirrors, including anti-glare rearview mirrors in automobiles.

Abstract: A new alkaline absorbent solution containing a severely-hindered amine and a severely-hindered aminoacid is provided. A process for the removal of H.sub.2 S from fluid mixtures using this absorbent solution to produce a very low level of H.sub.2 S in the treated fluid is also provided. The process is also suitable for the selective removal of H.sub.2 S from fluid mixtures comprising H.sub.2 S and CO.sub.2. Use of the above absorbent solution leads to higher selectivity for H.sub.2 S than observed when the severely-hindered amine is used alone without the severely-hindered aminoacid.

Abstract: The present invention relates to a mixture of severely-hindered amines, such as bis-(tertiarybutylaminoethoxy)-ethane (BTEE) and ethoxyethoxyethanoltertiarybutylamine (EEETB), and a one-step synthesis method for its preparation. Besides, this invention describes the use of the mixture for the removal of H.sub.2 S, especially the selective removal of H.sub.2 S in the presence of CO.sub.2.

Abstract: A new alkaline absorbent solution containing the additive of a severely-hindered amine salt and/or a severely-hindered aminoacid to a non-hindered amine such as N-methyldiethanolamine (MDEA) is provided. A process for the removal of H.sub.2 S from fluid mixtures using this absorbent solution to produce a very low level of H.sub.2 S in the treated fluid is also provided. The process is also suitable for the selective removal of H.sub.2 S from fluid mixtures comprising H.sub.2 S and CO.sub.2. Use of the above absorbent solution leads to higher selectivity for H.sub.2 S than observed when MDEA is used alone without the additives.

Abstract: In a preferred embodiment this invention provides novel organopolysiloxanes which exhibit nonlinear optical response.Illustrative of an invention organopolysiloxane is a polymer corresponding to the formula: ##STR1## wherein n is an integer of at least 5.

Abstract: A composition comprising the reaction product resulting from subjecting to grafting and esterification reaction conditions a mixture comprising a polyoxyalkylene amine and a vinyl monomer. The mixture is substantially free of copolymers derived from a polyoxyalkylene glycol and a diglycidyl ether, and the reaction product is partially cross-linked. Methods of use and preparation of such compositions are also disclosed.

Abstract: Surface active agents are prepared from by-products of papermaking. According to this method, lignin, modified lignin, and mixtures thereof are reacted with a polyamine to produce an amine condensate, and this amine condensate is reacted with a bisulfite and formaldehyde in aqueous solution to produce the novel surface active agents.