摘要:
A paper felt or mat is made from an aqueous slurry or dispersion of kraft wood pulp, a number of compounding ingredients such as finely divided inorganic pigments and fillers , a binder, an anionic latex of a copolymer wherein the core of the copolymer comprises a copolymer of a vinyl aryl monomer and a dicarboxylic acid monomer such as fumaric acid and/or itaconic acid and wherein the shell comprises a copolymer of a vinyl aryl monomer, a conjugated diene monomer, a glycidyl monomer such as glycidyl acrylate and/or glycidyl methacrylate and optionally a monocarboxylic acid monomer such as acrylic acid and/or methacrylic acid.
摘要:
Process for manufacturing a coated mesh for oil-water separation by coating a mesh with a curable coating composition and crosslinking the coating thereby providing hydrophilic properties to the surface of the mesh, a coated mesh available by said process and the use of such coated mesh for oil-water separation.
摘要:
A continuous process for making a comb-branched copolymer of an acrylic monomer and a polyether macromonomer is disclosed. The process is performed by continuously feeding a reaction zone with a monomer stream that contains an acrylic acid and a polyether macronomer, and an initiator stream. The comb-branched copolymer made thereby performs better as water reducing agent in cement compared to that made by a batch process.
摘要:
Polymer particles or beads for use as opacifiers in paints are described in which a core is provided with a hard sheath and the particle has one or more voids produced by reaction with a non-volatile permanent or fixed base. The sheath is a copolymer of an ethylenically unsaturated aliphatic monomer free of acid groups and at least 2 per cent by weight of a soft ester-containing monomer and optionally styrene in an amount of up to 25 mole per cent. The core is formed from an ethylenically unsaturated monomer with acid functionality. The sheath polymer has a glass transition temperature of at least 40°C, The particles have a size of up to 40000 nanometers before swelling the core by some 150 to 2000 per cent.
摘要:
A continuous process for making a comb-branched copolymer of an acrylic monomer and a polyether macromonomer is disclosed. The process is performed by continuously feeding a reaction zone with a monomer stream that contains an acrylic acid and a polyether macronomer, and an initiator stream. The comb-branched copolymer made thereby performs better as water reducing agent in cement compared to that made by a batch process.
摘要:
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung einer wässrigen Polymerdispersion, enthaltend dispergierte Polymerteilchen mindestens eines Polymerisats A1, das erhältlich ist durch semi-kontinuierliche radikalische Emulsionspolymerisation von ethylenisch ungesättigten Monomeren in Gegenwart eines Polymerisats A2, das aufgebaut ist aus
50 bis 99,5 Gew.-% mindestens einer ethylenisch ungesättigten Mono- und/oder Dicarbonsäure, 0,5 bis 50 Gew.-% wenigstens einer ethylenisch ungesättigten Verbindung, die ausgewählt ist unter den Estern ethylenisch ungesättigter Monocarbonsäuren und den Halbestern und Diestern ethylenisch ungesättigter Dicarbonsäuren mit einem mindestens eine Hydroxylgruppe aufweisenden Amin und bis zu 20 Gew.-% mindestens eines weiteren Monomers, welches dadurch gekennzeichnet, dass
a) wenigstens eine Teilmenge der ethylenisch ungesättigten Monomeren, b) eine Teilmenge des Wassers, c) wenigstens eine Teilmenge des Polymerisats A2 und gegebenenfalls d) Teil- oder Gesamtmengen weiterer Hilfsstoffe dem Polymerisationsgefäß gemeinsam ohne Ausbildung einer Emulsion über eine Zulaufleitung zugeführt werden.
摘要:
A laundry detergent composition comprising a surfactant, builder and from about 0.1 to about 25 weight percent, based on the total weight of the laundry detergent composition, of a styrene-anhydride copolymer grafted with polyethylene glycol which is prepared by reacting in a solvent styrene monomer selected from styrene and substituted styrene, with an anhydride monomer selected from maleic anhydride and itaconic anhydride, to form a styrene-anhydride copolymer which is reacted with polyethylene glycol, to form a styrene-anhydride copolymer grafted with polyethylene glycol. The styrene-anhydride copolymers grafted with polyethylene glycol when used in a laundering process, remove soil from fabrics, inhibit soil deposition on fabrics, and provide soil resistance to fabrics.