NEW ASSOCIATIVE THICKENER FOR AQUEOUS SYSTEM

• Main Authors: MONTAGYU PEATERGY, BURSTALE DANIAL W, COOK CALAFRAVIN K, KIELVANIA ANDREW J. JUNIOR
• Format: Patent
• Language: English
• Published: 25.03.2000
• Edition: 7
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DYES; FILLING PASTES; HUMAN NECESSITIES; HYGIENE; IMPREGNATING OR COATING OF PAPER; INKS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; USE OF MATERIALS AS ADHESIVES; USE OF MATERIALS THEREFOR; WOODSTAINS

PURPOSE: New nonionic polyurethane/urea polymer associative thickener composition comprising at least two low molecular weight hydrophobes is provided which is useful for concentrating an aqueous system and changing its liquid phase rheology. CONSTITUTION: A new nonionic polyurethane/urea polymer associative thickener composition comprising at least two low molecular weight hydrophobes is manufactured by reacting a prepolymer of hydrophilic diol or alkoxyamine and diisocyanate with alkoxidated amine substituted hydrophobic radical. The polymer represents a general formula of (XY1Z)n-A-(ZY2X1)m in which X,X1 are hydrophobic radicals; Z is a hydrophobic group; A is polyol or alkoxy amine; Y1,Y2 are a hydrophilic spacer; m, n are an integer from 0 to 5, m+n < 1; Z always adheres to A by an urethane bond when A is polyol and it adheres to A by an urea bond when A is amine ended alkoxy; and Z adheres to Y1,Y2 by an urea bond. The product provides an effective thickener which can act in the wide range of pH without any necessary another additional process.