Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Polyvinyl nitrate—

Attempts to obtain polyvinyl alcohol nitrate, (polyvinyl nitrate), were made with the object of producing a synthetic polymer capable of replacing nitrocellulose. [Pg.173]

Noma, Oya and Nakamura [33] examined the reaction of nitrating polyvinyl alcohol and concluded that neither nitration with a mixture of nitric and sulphuric acid, nor nitration with nitric and acetic acid can bring about the esterification of all the hydroxyl group. This is probably due to simultaneous hydrolysis. They recommend nitrating either with a composition of nitric add and acetic anhydride or a solution of nitric acid in carbon tetrachloride, where by a higher nitrated product, softening at a temperature of 40-50°C, is obtained. [Pg.173]

Le Roux and Sartorius [28] (Vol. II, p. 173) gave the following method of nitrating polyvinyl alcohol. [Pg.570]

Beilstein Handbook Reference) AI3-17104 BRN 2302822 CCRIS 7052 Di-(2-ethylhexyl) terephthalate EINECS 229-176-9 HSDB 6150 Kodaflex DOTP Terephthalic acid, bis(2-ethylhexyl) ester. Plasticizer used with PVC resins, in PVC plastisols, rubber application including wire coatings, ajtomotive and furniture upholstery compatible with acrylics, CAB, cellulose nitrate, polyvinyl butyral, styrene, oxidizing alkyds, nitrile rubber. Solid mp = 30-34° bp = 400 d = 0.980. Eastman Chem. Co. [Pg.71]

If the result is negative, test for bound formaldehyde. Heat a small sample of the plastic with 2 ml concentrated sulfuric acid and a few crystals of chromotropic acid for 10 min at 60-70°C. A deep violet coloration indicates formaldehyde. Cellulose nitrate, polyvinyl acetate, polyvinylbutyral, and cellulose acetate give a red coloration these materials, however, are not included in this part of the analytical procedure. [Pg.51]

Features Compatible with acrylics, CAB, cellulose nitrate, polyvinyl bu-tyral, styrene, oxidizing alkyds, nitrile rubber Manuf./Distrib. Ashland C.P. Hall Eastman Houghton Chem. PolyOne/ Elastomers Perf. Addit. [Pg.1092]

Types within group Cellulose acetate, cellulose acetate butyrate, cellulose nitrate, polyvinyl acetate, vinyl vinylidene, polyvinyl acetals, polyvinyl alcohol, polyamide, acrylic, phenoxy Cyanoacrylate, polyester, urea formaldehyde, melamine formaldehyde, resorcinol and phenol-resorcinol formaldehyde, epoxy, polyimide, polybenzimidazole, acrylic, acrylate acid diester Natural rubber, reclaimed rubber, bulyl, polyisobutylene, nitrile, styrene-butadiene, polyurethane, polysulfide, silicone, neoprene Epoxy-phenolic, epoxypolysulfide, epoxy-nylon, nitrile-phenolic, neoprene-phenolic, vinyl-phenolic... [Pg.434]

Diglycol laurate - gll- kol l6r-ot (diethylene glycol monolaurate). A plasticizer for ethyl cellulose, cellulose nitrate, polyvinyl butyral, and vinyl chloride-acetate copolymers. [Pg.296]

It is used as a plasticizer for cellulose acetate, cellulose nitrate, polyvinyl acetate, and PVC. Amylbiphenyl and diamylbiphenyl are used as secondary plasticizers of PVC. [Pg.57]

Olln- Wlnchester Electric Copper, zinc, lead styphnate (normal and basic), barium nitrate, polyvinyl chloride, antimony sulfide, calcium silicide It is unlikely that the amount of particles that someone would be exposed to from firing would be sufficient to cause any of these effects."... [Pg.209]

Cellulose acetate Cellulose acetate butyrate Cellulose nitrate Polyvinyl acetate Polyvinyl chloride Polyvinylidene chloride... [Pg.72]

Polyhydric Alcohols. (Polyols). An alcohol with three or more hydroxyl groups, each attached to a different carbon atom. They are w-sol and of sweetish taste, which tends to intensify with increasing hydroxyl content. Examples of polyols of ordn interest are listed below. Polyvinyl alcohol is considered in a separate entry as a polymer although it is defined as a polyhydric alcohol. Polyols, when nitrated, make excellent expls, proplnt binders, plasticizers, etc. Prepn can follow the procedure of Lenth DuPuis (Ref 3) which uses a methanol suspension of either sucrose or dextrose and a special Cu-Al oxide catalyst to yield 60-65% distillable polyols at 240° and 1500psi Refs 1) Beil — refs found under individual compds 2) CA, under Alcohols, Polyhydric for compds of current ordn interest 3) C.W. Lenth R.N. DuPuis, "Polyhydric Alcohol Production by Hydrogenolysis of Sugars in the Presence of Copper-Aluminum Oxide , IEC 37, 152-57 (1945) CA 39, 1391 (1945)... [Pg.818]

Polyvinylalcohol (PVA, Alvyl, Resistoflex, Solvar). A polyhydric alcohol polymer used chiefly as the starting matl for Polyvinyl Nitrate (PVN) (qv), (C2H40)x or... [Pg.831]

Comparison of Nitrocellulose vs Polyvinyl Nitrate in Propellant Formulations... [Pg.834]

Durgapal, U. C. et al., Propellants, Explosives, Pyrotechnics, 1995, 20, 64 This compound, made by mild nitration of polyvinyl alcohol, is an explosive as shock sensitive as tetryl. [Pg.290]

Traditionally, ultrafilters have been manufactured from cellulose acetate or cellulose nitrate. Several other materials, such as polyvinyl chloride and polycarbonate, are now also used in membrane manufacture. Such plastic-type membranes exhibit enhanced chemical and physical stability when compared with cellulose-based ultrafiltration membranes. An important prerequisite in manufacturing ultrafilters is that the material utilized exhibits low protein adsorptive properties. [Pg.137]

Same Specs as listed under Method No 219 gives its composition as Strontium Nitrate (anhydrous) 56.0t2.0, Magnesium - Aluminum Alloy (powdered) 37.0t2.0 Polyvinyl Chloride 7.011.0%... [Pg.1074]

PVN (Polyvinyl Nitrate) was first prepd in Germany and patented in 1938 in the US. [Pg.154]


See other pages where Polyvinyl nitrate— is mentioned: [Pg.833]    [Pg.834]    [Pg.833]    [Pg.834]    [Pg.341]    [Pg.107]    [Pg.833]    [Pg.833]    [Pg.834]    [Pg.834]    [Pg.835]    [Pg.261]    [Pg.224]    [Pg.251]    [Pg.242]    [Pg.157]    [Pg.381]    [Pg.586]    [Pg.1075]    [Pg.18]    [Pg.801]   
See also in sourсe #XX -- [ Pg.75 ]




SEARCH



PVN = polyvinyl nitrate

Polyvinyl alcohol nitrate

Vinyl polymers Polyvinyl nitrate

© 2024 chempedia.info