Cellulose 2-hydroxypropyl ether

Cellulose, hydroxypropyl ether E463 hyprolose Klucel Methoceh, Nisso HPC oxypropylated cellulose. [Pg.336]

Hydroxypropyl ether of cellulose. See Hydroxypropyl cellulose Hydroxypropyl ether guar gum. See Hydroxypropyl guar Hydroxypropylglycerin Properties Pale straw-colored liq. sol. in water and methanol dens. 1.084 pour pt. -23 C flash pt. 193 C ref. index 1.459 Precaution Combustible Uses Intermediate for alkyd resins and polyesters plasticizer for cellulosics, glue, starch, etc. [Pg.2138]

Hydroxypropyl celllulose is also known as cellulose, hydroxypropyl ether E463 hydroxypropyl cellulosum hyprolose Klucel Nisso HPC and oxypropylated cellulose. [Pg.149]

Hydroxypropyl cellulose Cellulose hydroxypropyl ether 9004-64-2 Cellulose, 2-hydioxypiopyl ether R (C3H802)4 Unk... [Pg.2279]

Etherification. Carbohydrates are involved in ether formation, both intramoleculady and intermoleculady (1,13). The cycHc ether, 1,4-sorbitan, an 1,4-anhydroalditol, has already been mentioned. 3,6-Anhydro-a-D-galactopyranosyl units are principal monomer units of the carrageenans. Methyl, ethyl, carboxymethyl, hydroxyethyl, and hydroxypropyl ethers of cellulose (qv) are all commercial materials. The principal starch ethers are the hydroxyethyl and hydroxypropylethers (see Cellulose ethers Starch). [Pg.481]

A possible way to lower the costs of fibers and films of regenerated cellulose would be to run cellulose through a twin-screw ultrasonic extruder with a minimum of solvent and pass the extrudate through a stream of hot air to recover the solvent for reuse. This stronger cellophane could be used in place of many plastic films used today. A great number of derivates of cellulose have been made. Methyl, ethyl, carboxymethyl, hydroxyethyl, and hydroxypropyl ethers are made commercially today. These are used as water-soluble polymers, except for ethylcellulose, which is a tough plastic used in screwdriver handles and such. [Pg.270]

Therapeutic Function Topical protectant, Ophthalmic vehicle Chemical Name Cellulose 2-hydroxypropyl ether Common Name Hyprolose Structural Formula ... [Pg.1867]

Research on nasal powder drug delivery has employed polymers such as starch, dextrans, polyacrylic acid derivatives (e.g., carbopol, polycarbophil), cellulose derivatives (microcrystalline cellulose, semicrystalline cellulose, hydroxypropylmethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose), chitosan, sodium alginate, hyaluronans, and polyanhydrides such as poly(methyl vinyl ether-co-maleic anhydride) (PVM/MA). Many of these polymers have already been used as excipients in pharmaceutical formulations and are often referred to as first-generation bioadhesives [38-45], In nasal dry powder a single bioadhesive polymer or a... [Pg.655]

HYDROXYPROPYLAMINE see PMM250 (3-HYDROXYPROPYL)BENZENE see HHP050 p-HYDROXYPROPYL BENZOATE see HNU500 HYDROXYPROPYL CELLULOSE see HNVOOO HYDROXYPROPYL ETHER of CELLULOSE see HNVOOO... [Pg.1727]

The PhEur 2005 and USPNF 23 describe hydroxypropyl cellulose as a partially substituted poly(hydroxypropyl) ether of cellulose. It may contain not more than 0.6% of silica or another suitable anticaking agent. Hydroxypropyl cellulose is commercially available in a number of different grades that have various solution viscosities. Molecular weight has a range of 50 000-1 250 000 see also Section 10. [Pg.336]

The USPNF 23 describes low-substituted hydroxypropyl cellulose as a low-substituted hydroxypropyl ether of cellulose. When dried at 105°C for 1 hour, it contains not less than 5.0% and not more than 16.0% of hydroxypropoxy groups (—OCH2CHOHCH3). Low-substituted hydroxypropyl cellulose is commercially available in a number of different grades that have different particle sizes and substitution levels. [Pg.341]

A purified form of cellulose, obtained from cotton linters or wood pulp, is reacted with sodium hydroxide solution to produce a swollen alkali cellulose that is chemically more reactive than untreated cellulose. The alkali cellulose is then treated with chloromethane and propylene oxide to produce methyl hydroxypropyl ethers of cellulose. The fibrous reaction product is then purified and ground to a fine, uniform powder or granules. [Pg.348]

Synonyms cas 9004-64-2 hydroxypropyl ether of cellulose klucel Hydroxytriphenylstannane... [Pg.170]

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]

Synonyms Cellulose, 2-hydroxypropyl ether HPC Hydroxypropyl ether of cellulose Hyprolose Oxypropylated cellulose Definition Partially substituted poly(hydroxypropyl) ether of cellulose Properties Off-wh. gran, powd., odorless, tasteless sol. in cold water, methanol, ethanol, many polar org. soivs. insol. in water > 37.7 C ... [Pg.1150]

Synonyms Carbohydrate gum Cellulose hydroxypropyl methyl ether Cellulose 2-hydroxypropyl methyl ether HPMC Hypromellose Methyl hydroxypropyl cellulose MHPC Definition Propylene glycol ether of methyl cellulose Properties Wh. gran, powd. sol. in most polar soivs., cold water swells in water to produce a clear to opalescent vise, colloidal sol n. insol. in hot water and in anhyd. alcohol, ether, chloroform nonionic Toxicoiogy LD50 (IP, rat) 5200 mg/kg mildly toxic by IP route TSCA listed... [Pg.1151]

Cellulose hydroxypropyl methyl ether Cellulose 2-hydroxypropyl methyl ether. See Hydroxypropyl methylcellulose Cellulose, 2-[2-hydroxy-3-(trimethylammonio)propoxy]ethyl ether, chloride. See Polyquaternium-24 Cel I u I ose, 2-(2-hyd roxy-3-(tri methyl am m on i u m) propoxy) ethyl ether, chloride. See Poiyquaternium-10... [Pg.814]

Synonyms Cellulose, 2-hydroxypropyl ether HPC Hydroxypropyl ether of cellulose Hyprolose Oxypropylated cellulose... [Pg.2137]

Definition Partially substituted poly(hydroxypropyl) ether of cellulose... [Pg.2137]

Synonyms Carbohydrate gum Cellulose hydroxypropyl methyl ether Cellulose 2-hydroxypropyl methyl ether HPMC Hypromellose... [Pg.2140]

Cellulose derivates cellulose esters (cellulose acetate, nitrocellulose, celluloid), cellulose ethers (car-boxymethyl cellulose, hydroxypropyl cellulose),... [Pg.19]

A number of compounds of this type are in use and they consist of methyl (and in some cases ethyl or hydroxypropyl)ethers of cellulose they are characterised by their alkoxyl content. A general method for the determination of methoxyl groups is as follows ... [Pg.434]

Hydroxypropyl Methyl Cellulose (Cellulose Hydroxypropyl Methyl Ether)... [Pg.150]

Celluiose ac iphthaiate. See Hydroxypropyl methylcellulose phthalate Cellulose carboxymethyl ether sodium saK. See Carboxymethyiceiiuiose sodium... [Pg.2022]

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