摘要:
Hydroxyethylcellulose with a low molar substitution and which is uniformly substituted is useful in cement-based systems, including mortars. The cement-based system exhibits long pot life, as well as very high water retention capability at hot temperature, as well as better paste stability and optimized setting behavior for hot as well as cold temperature compared to typical, cement- based systems with commercial cellulose ether compounds. Less hydrophilic cellulose ethers such as methylhydroxyethylcellulose can be added as a second cellulose ether.
摘要:
A joint compound with improved crack resistance is formed by combining water, a filler such as calcium carbonate, a latex emulsion binder, a thickening system such as methyl hydroxyethyl cellulose, and nanocrystalline cellulose. The nanocrystalline cellulose is provided in an amount effective to reduce the crack formation during drying.
摘要:
A synthetic polymer has a water-soluble or water-swellable polymer backbone and terminal groups and/or intermediate groups of blocks of hydrophobes of alkyl- or aryl compounds containing a polymerizable cyclic monomer or a polymerizable double bond (or alkene) group or derivatives thereof. The blocks of hydrophobes are composed of two or more units of the same or different hydrophobes. These synthetic polymers are used as rheology modifiers, especially in latex paints.
摘要:
A synthetic polymer has a water-soluble or water-swellable polymer backbone and terminal groups and/or intermediate groups of blocks of hydrophobes of alkyl- or aryl compounds containing a polymerizable cyclic monomer or a polymerizable double bond (or alkene) group or derivatives thereof. The blocks of hydrophobes are composed of two or more units of the same or different hydrophobes. These synthetic polymers are used as rheology modifiers, especially in latex paints.
摘要:
Aqueous multiphase compositions are stabilized using a blend of cellulose ether and nanocrystalline cellulose. The multiphase compositions can include particulates dispersed in water, oil in water emulsions, foams, and combinations of these systems. The blend can be used to stabilize aqueous paint systems, personal care products such as shampoos and detergents formed as oil in water emulsions, and foaming products such as detergents, shampoos, other personal care products and edible compositions such as whip cream substitutes. Further, this blend can reduce or eliminate the need for surfactants in many of these multiphase compositions.
摘要:
An aqueous dispersion includes an associative thickener based on a hydrophobically modified poly(acetal- or ketal-polyether) (HM-PAPE) and at least one viscosity reducing agent selected from ethoxylated alcohols, ethoxylated acetyleneic diols, phosphate esters, dialkyl sulfosuccinates, and mixtures thereof. This aqueous dispersion improves the incorporation of the HM-PAPEs into aqueous based protective coatings. This dispersion also improves water-borne coating compositions that optionally contain latex.
摘要:
A conditioning composition is used in functional systems (personal care and household care compositions) that has a nonionic hydrophobically modified cellulose ether (HMCE) having a weight average molecular weight (Mw) with a lower limit of 400,000 and an upper limit of 2,000,000 and a hydrophobic substitution lower limit of 0.6 wt % and an upper limit amount which renders said cellulose ether insoluble in a 5 wt % solution of surfactant and less than 0.05 % by weight soluble in water and wherein the cellulose ether provides conditioning benefit to the functional system substrate.. This composition has at least one active functional system ingredient.