Methyl Cellulose


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Related to Methyl Cellulose: carboxymethyl cellulose

Methyl Cellulose

 

[C6H7O2(OH)3,x(OCH3)x]n, a methyl ether of cellulose. The type most widely used in industry is water-soluble methyl cellulose (degree of substitution γ, 140–200;—OCH3 group content, 23.5–33.0 percent); an odorless and tasteless white solid. Density, 1.29–1.31 g/cm3; melting point, 290°−305°C .

Methyl cellulose is prepared commercially by reacting alkali cellulose with methyl chloride, CH3C1. It is used mainly in the manufacture of adhesives for foam plastic (expanded plastic), leather, and wallpaper, as well as in the production of water-soluble packing film and emulsion paints; it serves as a stabilizer in aqueous-fatty emulsions in cosmetics manufacture, as a preservative in ice cream, and as a thickening agent in juices. Methyl cellulose is also used in medicine for the preparation of capsules, as a fat-free base for eye drops and ointments, and as an ingredient in laxatives.

methyl cellulose

A granular, white flaky material which acts as a water-soluble thickener and stabilizer; used in water-based paints.
References in periodicals archive ?
An increasing and decreasing trend in tensile strength on RHAPMC has been observed at inclusion of Methyl cellulose in the mix; on the inclusion of MC from 0.1 to 0.7 %age dosages by the weight of cement the tensile strength increases and on the further inclusion of MC the tensile strength decreases.
The section Qualitative description below shows that adding methyl cellulose should reduce the half-saturation constant in the functional response and using half-strength cerophyl should reduce the carrying capacity, and these two features are sufficient to qualitatively explain Luckinbill's results.
Methyl cellulose and its derivatives market consists of methyl cellulose, hydroxypropyl methyl cellulose, and hydroxyethyl methyl cellulose.
Two tenders requesting offers to supply (a) 250 tons sodium tri polyphosphate & (b) 75 tons CMC - Carboxy Methyl Cellulose. Prices requested both FOB Stowed and C & F.
The liquid fabric treatment composition is placed in a water soluble container formed from a water soluble polymer selected from the group consisting of polyvinyl alcohols, polyvinyl alcohol copolymers, partially hydrolyzed polyvinyl acetate, polyvinyl pyrrolidone, alkyl celluloses, ethers and esters of alkyl cellulosics, hydroxyl alkyl, carboxy methyl cellulose sodium, dextrin, maltodextrin, water soluble polyacrylates, water soluble polyacry-lamides and acrylic acid/maleic anhydride copolymers.
Locust bean gum, carrageenan, and carboxy methyl cellulose were used either singly or in combination at concentration of 0.15%, except for carrageenan, which was added at 0.02%.
The new business will combine Wolff's production technology and HEMC (Hydroxyethyl Methyl Cellulose) and CMC (Carboxymethyl Cellulose) chemistry with Dow's HPMC (Hydroxypropyl Methyl Cellulose) product brands.
The conditioners examined included sodium stearoyl-2-lactylate (0.25%), monoglyceride (0.25%), hydroxy propyl methyl cellulose gum (0.75%, HPMC), high-fructose corn syrup (4.2%, HFCS) and various combinations of improvers.
The odor reduction layer also has a binding agent that is selected from the group consisting of carboxy methyl cellulose, polyurethane, polyfix, polyamine and a mixture thereof.
[USPRwire, Fri Sep 28 2018] Methyl cellulose is a hydrophilic white powder chemical compound derived from cellulose.
Methyl cellulose will dominate the cellulose ether market due to its widespread use in construction materials such as plaster, mortar, grouts, stucco and wallpaper pastes.