Estergruppeholdige blokk-polymerer som anti-skummingsmidler for vandige systemer

• Main Authors: FISCHER, HERBERT, SLADEK, HANS-JURGEN, EICKEN, ULRICH, MAHLER, ULRIKE, HAUT, CHRISTIAN DE, GORZINSKI, MANFRED, MOLLER, THOMAS, GRESS, WOLFGANG, WOLLENWEBER, HORST-WERNER
• Format: Patent
• Language: Norwegian
• Published: 10.01.1996
• Edition: 6
• Subjects: ADHESIVES; ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; BEER; BIOCHEMISTRY; CANDLES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS THEREOF; CORRECTING FLUIDS; CULTURE MEDIA; DETERGENT COMPOSITIONS; DETERGENTS; DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM; DYEING OR PRINTING TEXTILES; DYES; ENZYMOLOGY; FATTY ACIDS THEREFROM; FILLING PASTES; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; INKS; LAUNDERING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MUTATION OR GENETIC ENGINEERING; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; POLISHES; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; RECOVERY OF GLYCEROL; RESIN SOAPS; SEPARATION; SOAP OR SOAP-MAKING; SPIRITS; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; USE OF MATERIALS THEREFOR; USE OF SINGLE SUBSTANCES AS DETERGENTS; VINEGAR; WINE; WOODSTAINS

En skumregulator som universelt kan benyttes i vandige systemer som tenderer til skumming, har en god spontanvirkning l små mengder og beholder denne virkning i lang tid. Det kan tilpasses slik at det er effektivt selv ved lave temperaturer mens samtidig utvikler sin virkning over et vidt temperaturområde. Skumregulatoren kan fremstilles som et rlsledyktig skumregulerlngsmlddel og kan også innarbeides i ferdige vaske- og rengjøringsprodukter og kan være effektiv over et vidt temperaturområde. Benyttet l målings- og lakkindustrlen tillater det at det oppnås homogene belegg av malinger og lakker, og ved papirbelegning oppnås det et enhetlig belegg uten overflateuregelmessigheter. Skumregulatoren er en estergruppeholdlg blokkpolymer med den generelle formel: A-(CH2CH20)n-B (D der n er lik 4 til 300, A er en eventuelt polymer hydroksykarboksylsyrerest og B er hydrogen, en alkyl- eller alkenylrest med l til 22 karbonatomer, en fenyl- eller benzylrest eller A. Polymeren kan benyttes som sådan eller som et granu- lert, risledyktlg skumregulerlngsroiddel som Inneholder 0,5 til 30 vekt-* blokkpolymer, adsorbert på 70 til i 99,5 vekt-5t granulert, fosfatfrl og vannoppløsellg eller vanndlspergerbar bærer. PCT No. PCT/EP94/02966 Sec. 371 Date Apr. 10, 1996 Sec. 102(e) Date Apr. 10, 1996 PCT Filed Sep. 6, 1994 PCT Pub. No. WO95/07742 PCT Pub. Date Mar. 23, 1995A method of using compositions as foam regulators for water-based systems with a tendency to foam is provided. The method employs a block copolymer containing ester groups corresponding to general formula (I): A-(CH2CH2O)n-B(I)in which n is an integer of 4 to 300, A is an optionally polymeric hydroxycarboxylic acid function and B is hydrogen, an alkyl or alkenyl radical containing 1 to 22 carbon atoms, a phenyl or benzyl radical or has the same meaning as A. Also provided is a granular free-flowing foam regulating formulation which contains 0.5% by weight to 30% by weight of the block copolymer containing ester groups adsorbed onto from 70% by weight to 99.5% by weight of a granular, substantially inorganic phosphate-free support material.