Inventor

FIKENTSCHER ROLF

DE67 patents

⚠️ This page may combine multiple inventors who share the name “FIKENTSCHER ROLF”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FIKENTSCHER ROLF

BASF AG

Polyacetals, preparation thereof from dialdehydes and polyolcarboxylic acids, and use of same

Aqueous pigment dispersions

Incorporating a crosslinked polyamidoamine condensation product into paper-making pulp

Use of trialkanolamine polyethers as demulsifiers for oil-in-water emulsions

Modified melamine-formaldehyde resins

Preparation of stable water-in-oil emulsions of hydrolyzed polymers of n-vinylamides

Serine-N,N-diacetic acid and derivatives as complexing agents and detergents containing same

Removal of anionic compounds from water

Dyeing process using quaternary ammonium salt as retarder

Coloring of paper

Demulsifiers for breaking crude-oil emulsions and their use

Preparation of serine-N,N-diacetic acid and derivatives as complexing agents and detergents containing same

Nitrogenous condensation products used as retention aids in papermaking

Preparation of ether sulfonates and polyglycol ether sulfonates, and products prepared by this method

Preparation of N-α-alkoxyethylformamides

Iodine-containing block copolymers of 1,4-butylene oxide and ethylene oxide

Preparation of condensates of arenesulfonic acids and formaldehyde and use thereof

Methods of demulsifying employing condensates as demulsifiers for oil-in water emulsions

Apparatus for testing fuel additives and oil additives

Alkoxylated amido-containing polyamines and their use for breaking oil-in-water and water-in-oil emulsions

Tanning assistant

2-Hydroxy-3-aminopropionic-n,n-diacetic acid and derivatives thereof, preparation thereof, and detergents containing same

Preparation of acyloxybenzenesulfonic acids and their alkali metal and alkaline earth metal salts

Preparation of alkali metal and alkaline earth metal salts of acyloxybenzenesulfonic acids

Coating materials which contain α-hydroxyketones as antiskimming agents

Water-soluble benzylated polyamidoamines

Water-soluble, crosslinked nitrogenous condensation products produced by reaction of chlorohydrin-ethers with ethyleneimine

Quaternized condensation products of trialkanolamines

Aftertreatment of reactive dyeings on cellulose fibers

Alkylene oxide derivatives based on polytetrahydrofuran copolymers

Manufacture of aziridinecarboxylic acid esters

Use of salts of sulfonamidocarboxylic acids as corrosion inhibitors in aqueous systems

Water-soluble, crosslinked nitrogen-containing condensation products

Quaternary ammonium salts

Desizing cotton and cotton-containing fabrics

Liquefaction of aqueous textile softeners

Anionically polymerized n-vinylformamide and the preparation thereof

Preparation of alpha-formylamino nitriles

Preparation of N-hydroxypyrazoles

Preparation of 2-(hydroxymethyl)-acrylonitrile and 2-(hydroxymethyl)-acrylates

Process for suppressing the foaming of detergents

Manufacture of bonded textile sheet materials

Textile print pastes containing disperse dyes

Quaternized condensation products for aftertreating dyed leather

Glycerol aminocarboxylates and preparation and use thereof

Preparation of addition salts of cysteamine with acids

Polymeric conditioner for pretreating nonmetallic surfaces for chemical metallization

Polymeric conditioner for pretreating nonmetallic surfaces for chemical metallization

Condensates of bis-(4-hydroxyphenyl) sulfone as tanning assistants, their preparation and use in the tanning of leather

HERTEL OTTO

Water soluble crosslinked ethyleneimine grafted polyamidoamine