Bayer Aktiengesellschaft

Peter Markusch

Dieter Dieterich

Helmut Reiff

Hans-Joachim Scholl

Werner Dietrich

Rainer Welte

Klaus Friederich

Wulf Von Bonin

Manfred Dietrich

Josef Merten

Klaus Noll

Dietrich Michael

Helmut Kleimann

Marcel Petinaux

Ulrich Haberland

Gerhard Heinze

Hans-Jurgen Lienert

Norbert Kunstler

Manfred Schon

The instant invention is directed to aqueous dispersions or solutions of polyurethane ionomer characterized by

Polyurethane ionomer dispersions containing electrolytes

Glass fibers for reinforcing thermoplastic resins are sized with an aqueous dispersion comprising a polyurethane-ionomer as a film-forming agent and a bonding agent comprising an epoxy-containing alkoxysilane. Advantageously the polyurethane is a very small particle ionomer and the bonding agent is selected from the group consisting of

Sizing glass fibers for thermoplastic resin reinforcement

The instant invention is directed to a process for the production of inorganic-organic synthetic materials having high strength, elasticity, dimensional stability under heat, and flame resistance, consisting of a polymer-polysilicic acid gel composite material in the form of a solid/solid xerosol, said process comprising mixing

Process for the production of inorganic-organic synthetic materials

The instant invention is directed to novel polyurethane cationic electrolyte-stable dispersions characterized by lateral or terminal polyalkylene oxide polyether chains containing from 2 to 10%, by weight, of ethylene oxide units, based on the total weight of the polyurethane; a content of ##STR1## groups of from 16 to 100 milliequivalents per 100 g of polyurethane; an average particle size of from 50 to 300 m.mu.; and a solids content of from 10 to 45%.

Cationic electrolyte-stable dispersions and process for producing

Process for the production of inorganic-organic synthetic foam materials

This disclosure teaches a method of forming mineral mates by using an emulsion of water glass and isocyanates as the binder. This binder composition may be readily dispersed with air and has superior adhesion to mineral fibers.

Process for the production of mineral fiber mats

This invention relates to new aromatic uretdione-diisocyanate-disulphonic acids, to a process for the preparation thereof and to the use thereof as components for the production of polyurethane resins. More particularly, the instant invention relates new aromatic uretdione-diisocyanate-disulphonic acids of the general formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 each represent a hydrogen, chlorine or bromine atom or a methyl, ethyl or C.sub.1 -C.sub.4 alkoxy group;

Aromatic uretdione-diisocyanate-disulphonic acids

This invention relates to the production of composites of organic polyisocyanate plastics and metals. The metals are pretreated with certain adhesion promoters in order to increase adhesion between the metal and the plastic. The pretreated metal sheet or foil is brought into contact with the reaction mixture during the chemical reaction while the plastic is being formed.

Process for the production of plastics/metal composites

The instant invention is directed to a process for the production of inorganic-organic resins, by reaction of an organic polyisocyanate with aqueous basic solutions having an inorganic solid content of from 20 to 80% by weight in the presence of catalysts and optionally other additives, characterized in that the organic polyisocyanate and the aqueous basic solution are used in a proportion by weight of between 80:20 and 10:90 parts by weight and that organic ammonium compounds are used as catalysts.

Process for the production of inorganic-organic plastics

Aromatic polyisocyanates containing sulphonic acid or sulphonate groups which are substantially free from crystalline product and a method for making them are provided wherein a mixture of aromatic polyisocyanates having an isocyanato content of from about 10% to about 42% by weight is sulphonated, the improvement which comprises mixing and reacting liquid aromatic polyisocyanates having a viscosity of from about 8 cP to about 49 cP at 25.degree. C. and containing at least 40% by weight of phosgenation products of an aniline-phosgenation condensate and at least about 20% by weight of 2,6-tolylene diisocyanate, 2,4'-diphenylmethane diisocyanate, 2,2'-diphenylmethane diisocyanate or a mixture thereof, based on the weight of said liquid aromatic polyisocyanates with a sulphonating agent in an amount equivalent to from about 0.1% to about 40% by weight sulphur trioxide, based on the weight of said liquid aromatic polyisocyanates.

Organic polyisocyanates

An inorganic-organic plastic having improved strength, elasticity, dimensional stability with increase in temperature and flame resistace and adapted for use in filling cracks and cavities and for making materials useful in the building industry is prepared by (1) premixing (c) an organic compound having at least two reactive hydrogen and at least one non-ionic hydrophilic group with (b) an aqueous silicate and then mixing the resulting mixture with (a) an organic polyisocyanate or (2) mixing (a), (b) and (c) simultaneously and reacting the mixture thus obtained to form a colloidal xerosol.

Inorganic-organic plastic

The instant invention is directed to a novel process for the production of inorganic/organic plastic materials and the resultant products. The process generally comprises reacting an aqueous alkali metal silicate solution with a liquid organic polyisocyanate having a viscosity at 25.degree. C of at least about 400 cP. Preferably, the process is utilized to produce high quality, lightweight foams having excellent physical properties.

Process for the production of inorganic-organic plastic composites

The instant invention relates to hydrophobic inorganic-organic lightweight foams produced from aqueous suspensions of finely divided water-insoluble inorganic materials and polyisocyanates. More particularly, the invention relates to a process for the production of highly filled, hydrophobic, lightweight polyurea foams comprising reacting

Highly filled polyurea foams

This invention relates to aqueous alkali metal silicate/iron oxide pigment suspensions which are resistant to sedimentation, to a process for the preparation thereof and to the use thereof. The pigment suspensions comprise: A. from about 10 to about 40%, by weight, of iron oxide pigment, B. from about 20 to about 40%, by weight, of alkali metal silicate and C. from about 30 to about 70%, by weight, of water, Wherein at least 95% by weight of the iron oxide pigment has a particle size equal to or less than 1 .mu..

Stable aqueous alkali metal silicate/iron oxide pigment suspensions

Inorganic-organic compositions obtained from a mixture of components comprising:

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Cologne, Germany

Peter Markusch