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Methyl hydroxypropylcellulose

Benecel MHPC E464 hydroxypropyl methylcellulose HPMC Methocel methylcellulose propylene glycol ether methyl hydroxypropylcellulose Metolose Tylopur. [Pg.346]

With autoclave safety precautions, in a 6-liter stirred autoclave are placed 3000 gm of deionized and deaerated water, 3 gm of ammonium carbonate, 0.9 gm of methyl hydroxypropylcellulose (Methocel 65HG/50 cP from Dow Chemical Co.), and 3 gm of AIBN. The reactor is purged with nitrogen under a pressure of 10 atm. Then the reactor is evacuated, and 1500 gm of vinyl chloride is sucked into the autoclave. The autoclave is closed, and the agitator is started. The reaction mixture is heated to 65°C and maintained at 65°C by passing either hot or cold water through an external jacket as required. After approximately 2.2 hr, about 10% of the monomer is converted. [Pg.385]

Hydroxypropyl methyl cellulose (Scheme 5.2) is also known as Benecel MHPC E464 hydroxypropyl methylceUulose HPMC hypromellosum Methocel methylcellulose propylene glycol ether methyl hydroxypropylcellulose Metolose MHPC Pharmacoat Tylopur and Tylose MO. [Pg.150]

Most research into the study of dispersion polymerization involves common vinyl monomers such as styrene, (meth)acrylates, and their copolymers with stabilizers like polyvinylpyrrolidone (PVP) [33-40], poly(acrylic acid) (PAA) [18,41],poly(methacrylicacid) [42],or hydroxypropylcellulose (HPC) [43,44] in polar media (usually alcohols). However, dispersion polymerization is also used widely to prepare functional microspheres in different media [45, 46]. Some recent examples of these preparations include the (co-)polymerization of 2-hydroxyethyl methacrylate (HEMA) [47,48],4-vinylpyridine (4VP) [49], glycidyl methacrylate (GMA) [50-53], acrylamide (AAm) [54, 55], chloro-methylstyrene (CMS) [56, 57], vinylpyrrolidone (VPy) [58], Boc-p-amino-styrene (Boc-AMST) [59],andAT-vinylcarbazole (NVC) [60] (Table 1). Dispersion polymerization is usually carried out in organic liquids such as alcohols and cyclohexane, or mixed solvent-nonsolvents such as 2-butanol-toluene, alcohol-toluene, DMF-toluene, DMF-methanol, and ethanol-DMSO. In addition to conventional PVP, PAA, and PHC as dispersant, poly(vinyl methyl ether) (PVME) [54], partially hydrolyzed poly(vinyl alcohol) (hydrolysis=35%) [61], and poly(2-(dimethylamino)ethyl methacrylate-fo-butyl methacrylate)... [Pg.303]

Methylcellulose/hydroxypropylcellulose copolymer (25 mol% methyl, 8 mol% hydroxypropyl subsitution)... [Pg.2211]

Ethylcellulose-g-[poly(ethylene glycol) methyl ether methacrylate] Hydroxypropylcellulose-g-poly(A -isopropylaciylamide)-g- 150... [Pg.471]

Cellulose, 2-hydroxypropyl ether. See Hydroxypropylcellulose Cellulose hydroxypropyl methyl ether Cellulose 2-hydroxypropyl methyl ether. See Hydroxypropyl methylcellulose Cellulose methyl Cellulose methylate Cellulose methyl ether. See Methylcellulose... [Pg.1032]

Hydroxypropylcellulose Hydroxypropyl guar Methyl hydroxyethylcellulose Microcrystalline wax PEG-4M PEG-6M PEG-10M PEG-14M PEG-35M PEG-2 stearate... [Pg.4896]

Hydroxyethylcellulose Hydroxypropylcellulose Hydroxypropyl methylcellulose Isostearic acid Magnesium aluminum silicate Meroxapol 105 Meroxapol 172 Meroxapol 174 Meroxapol 251 Meroxapol 252 Meroxapol 254 Meroxapol 258 Meroxapol 311 Methyl hydroxyethylcellulose PEG-20 hydrogenated castor oil PEG-2M PEG-5M PEG-7M PEG-8M PEG-9M PEG-14M PEG-20M PEG-23M PEG-90M... [Pg.4902]

Ethylene distearamide , EthyleneA/A copolymer 2-Ethylhexanol Ferrous ammonium sulfate Fumaric acid Glyceryl acetate Glyceryl diacetate Hydrogenated castor oil Hydroxyethylcellulose Hydroxypropylcellulose Isopropyl acetate Isopropyl alcohol Itaconic acid Lanolin Lauryl alcohol Magnesium lauryl sulfate Magnesium myristate Magnesium palmitate Maleic acid Melamine-formaldehyde resin Methyl ethyl ketone ... [Pg.4948]

Gum ghatti Hydrogenated tallow glyceride Hydrolyzed oat flour Hydroxypropylcellulose Hydroxypropyl distarch glycerol Hydroxypropyl distarch phosphate Hydroxypropyl methylcellulose Hydroxypropyl starch Karaya (Sterculia urens) gum Konjac flour Lauryl betaine Locust bean (Ceratonia siliqua) gum Malt extract D-Mannitol Methylcellulose Methyl ethyl cellulose Mono- and diglycerides, of fatty acids ,Oat gum Pectin Pectin, amidated... [Pg.5819]

Acrylates copolymer Aluminum distearate Aluminum palmitate Attapulgite Capryl hydroxyethyl imidazoline EO/PO ethylenediamine block copolymer Ethylene/MA copolymer Hydroxyethylcellulose Isopropyl glycidyl ether Magnesium aluminum silicate Montmorillonite PEG-4 laurate PEG-12 laurate PEG-5M PEG-9M PEG-23M PEG-45M PEG-20 oleate PEG-4 stearate PEG-20 stearate Polyethylene wax PVP Silica, fumed Sodium polyacrylate Stearamide Tall oil hydroxyethyl imidazoline Xanthan gum thickener, paints/coatings Methyl hydroxyethylcellulose thickener, paints emulsion Ethyl hydroxyethyl cellulose Hydroxypropylcellulose thickener, paper... [Pg.5822]

Mixtures of hydrocoUoidal gelling agents in an aqueous medium have also been employed as water-soluble or water-dispersible additives to provide gels having solids-suspending properties. Such mixtures include a mixture of hydroxypropyl-cellulose and poly(l-alkene-maleic anhydride) as poly(isobutylene-co-maleic anhydride), and a blend of hydroxypropylcellulose and poly(alkyl vinyl ether-co-maleic anhydride) as poly(methyl vinyl ether-co-maleic anhydride) [91]. [Pg.271]

Cellulose ethers, such as hypromellose (HPMC), methyl-cellulose (MC), hydroxypropylcellulose (HPC) and carmellose sodium (CMC-Na)... [Pg.69]

Figure 34 The cellulose ethers hydroxyethylcellulose, 36 hydroxypropylcellulose, 37 methyl-cellulose, 38 ethyUiydroxyethylceUulose, 39 and hydroxypropyhnethylceUulose, 40. Figure 34 The cellulose ethers hydroxyethylcellulose, 36 hydroxypropylcellulose, 37 methyl-cellulose, 38 ethyUiydroxyethylceUulose, 39 and hydroxypropyhnethylceUulose, 40.
Because of the pendent methyl groups on the propylene oxide side chains, hydroxypropylcellulose is much more lipophilic than HEC. This allows HPC to dissolve in and thicken many organic systems such as ethyl alcohol, aqueous ethyl alcohol, and propylene glycol. Hydroxypropylcellulose is also thermoplastic it can be melt-processed as films, fibers, and structural components. The methyl groups on HPC can create hydrophobic domains, which help explain why highly concentrated solutions of HPC exhibit liquid crystalline morphology (151). [Pg.379]

Health and Safety Factors. No adverse toxicological or environmental factors are reported for cellulose ethers in general (33,60-73). Some are even approved as direct food additives, including purified carboxymethylcellulose, methyl-cellulose, hydroxypropylmethylcellulose, and hydroxypropylcellulose. [Pg.1131]

Since the hydroxyl groups in cellulose are reactive and can be easily functionalized, cellulose has been made into a large number of derivatives in the form of ethers, esters, and acetals, such as methyl cellulose, hydroxypropylcellulose, hydroxypropyl methyl cellulose, and carboxymethyl cellulose. These cellulose derivatives are soluble in a variety of solvents and can be easily processed into various forms, such as... [Pg.27]

See other pages where Methyl hydroxypropylcellulose is mentioned: [Pg.388]    [Pg.390]    [Pg.388]    [Pg.390]    [Pg.115]    [Pg.3128]    [Pg.1521]    [Pg.140]    [Pg.26]    [Pg.1583]    [Pg.5583]    [Pg.5583]    [Pg.5583]    [Pg.5583]    [Pg.5798]    [Pg.161]    [Pg.376]    [Pg.526]    [Pg.332]    [Pg.860]   
See also in sourсe #XX -- [ Pg.346 ]



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Hydroxypropylcellulose

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