Abstract: The invention relates to a composition suitable for optically whitening paper or board, wherein the composition contains specified bis-triazinylamino-stilbene fluorescent whitening agents with carboxylic acid and/or sulfonic acid groups. The composition can be used for whitening paper in the pulp, size press or by coating.

Abstract: Fluorescent whitening agent compositions include at least two specific disulfo-type fluorescent whitening agents for optically whitening paper or board.

Abstract: Concentrated aqueous fluorescent whitening agent preparations are disclosed for optically whitening paper, wherein the preparation contains a specific disulfo-type fluorescent whitening agent.

Abstract: The invention relates to a composition suitable for optically whitening paper or board, wherein the composition contains specified bis-triazinylamino-stilbene fluorescent whitening agents with carboxylic acid and/or sulfonic acid groups. The composition can be used for whitening paper in the pulp, size press or by coating.

Abstract: A composition suitable for paper brightening, wherein the composition contains one or more specified fluorescent whitening agents with taurine groups. The composition is used for whitening paper, in particular at the wet-end, in the size press or by coating.

Abstract: A composition suitable for surface treatment of paper, wherein the composition contains a specified fluorescent whitening agent with alkylsulfonic acid groups, a salt of a bivalent cation, and a carrier. The composition is used for whitening paper, in particular in the size press.

Abstract: Disulfo-type fluorescent whitening agents for optically brightening coating slips contain a synthetic binder and a different synthetic co-binder. In addition, a coating slip and its use for preparing coated papers are disclosed.

Abstract: Concentrated aqueous fluorescent whitening agent preparations are disclosed for optically whitening paper, wherein the preparation contains a specific disulfo-type fluorescent whitening agent.

Abstract: The present invention relates to fluorescent whitening agent compositions containing at least two specific disulfo-type fluorescent whitening agents for optically whitening paper or board.

Abstract: The invention relates to microcapsules for which the walls comprise reaction products of polyisocyanates, guanidine compounds, and optionally amines, wherein the polyisocyanates have an isocyanurate content of at least 30% by weight, based on polyisocyanate, and the walls comprise on average less than 9% by weight, based on the total weight of the microcapsule.

Abstract: The invention relates to microcapsules for which the walls comprise reaction products of polyisocyanates with guanidine compounds and amines.

Abstract: A cargo compartment door for a passenger aircraft having about 80 to 150 seats, wherein the cargo compartment is located underneath the cabin floor, closes a loading opening (6) that extends from approximately a connection area (3, 4) between the cabin floor and the fuselage downwardly in a circumferential direction to well beyond the center plane of the fuselage. The cargo compartment door has a work platform that extends approximately horizontally in the loading position. These features provide an optimal convenience for loading and unloading such aircraft.