Hoechst Aktiengesellschaft

Cassella Aktiengesellschaft

Wilhelm Adam

Franz-Josef Dany

Horst Staendeke

Joachim Kandler

Ulrich Riegel

Friedrich Engelhardt

Steffen Piesch

Ursus Thummler

Manfred Schon

Hannsjorg Ulrich

Peter Heidel

Alfons Wolf

Jurgen Ott

Renate Konrad

Curt A Wagner

Georg W Eckhardt

Frank Scholl

Gerd Kalteyer

Wilhelm Weber

The present invention relates to melamine-formaldehyde resins comprising a guanamine, to processes for their preparation and to their use for the production of melamine resin films and edgings.

Impregnating resins for films and edgings

A carrier web of a sheet-like fiber material consisting of a glass fiber mat and a mat of synthetic fibers, which and are needled together and are end-consolidated with a polymer-free low-formaldehyde melamine-formaldehyde precondensate, and a process for its preparation are described. The carrier web is preferably end-consolidated with a melamine-formaldehyde precondensate which is partly etherified and/or sulfamate-modified.

Flame-resistant carrier web for bitumen webs and a process for its

Stabilized pulverulent red phosphorus consisting substantially of particles with a size of at most 2 mm, encapsulated in a thin layer of an oxidation stabilizer consisting of at least one scarcely water-soluble or water-insoluble metal hydroxide and a melamine/formaldehyde-polycondensation product.

Stabilized red phosphorus and process for making it

The invention relates to a particulate agent based on free-flowing pulverulent ammonium polyphosphates of the general formula

Particulate agent for impeding the combustibility of combustible

Low viscosity, aqueous impregnating resin solution with improved stability containing 30-70% by weight of solid resin which comprises:

Acrylate-modified melamine resin which is stable on storage, its

The invention relates to a process for making striking surfaces wherein red phosphorus, abrasive agents, and binders which are in the form of aqueous urea/formaldehyde or melamine/formaldehyde-condensates, are made into an aqueous suspension which is applied on to a striking surface substrate. More particularly, the suspension, based on the solid matter content of the condensates used as binder, is admixed with 5 to 20 weight %, calculated as solid matter, of an agent cross-linking the amine resin, the cross-linking agent being a polyester or copolymer produced by subjecting an acryl and/or methacryl ester to copolymerization with vinyl acetate in a ratio by weight of 1:9 to 9:1. A pH-value within the range 6.5 to 8.0 is established in the mixture, in the event of the cross-linking agent being a copolymer, or a pH-value within the range 7 to 11 is established, in the event of the cross-linking agent being a polyester.

Production of striking surfaces for matches

The invention relates to stabilized, pulverulent red phosphorus, consisting of phosphorus particles having a particle size of at most about 2 mm, and an oxidation stabilizer which envelops the phosphorus particles in the form of a thin layer, wherein

Stabilized red phosphorus and process for its manufacture

Curable, modified aminotriazine condensation product prepared by reacting an aminotriazine condensation product pre-condensed to a dilutability ratio with water of 1:0.5 to 1:5, with 65 to 500% by weight, relative to the triazine, of a lactam of an aminocarboxylic acid having 3 to 18 carbon atoms, or a diaminedicarboxylate salt of a diamine having 2 to 18 carbon atoms and a dicarboxylic acid having 2 to 18 carbon atoms, or a mixture thereof, at a temperature of no more than 65.degree. C.

Growing community of inventors

Neu-Isenburg, Germany

Wilhelm Adam