Polyvinyl resin

Uses Solvent mixtures for nitrocellulose and polyvinyl resins in organic synthesis. 

Solvent and reaction medium for the manufacture of polyacrylonitrile, polyurethanes, polyvinyl resins, dyes and Pharmaceuticals. 

Styrene/divinylbenzene copolymers, polymethacrylate, and polyvinyl resins are the most important organic compounds that were tested for their suitability as substrate materials in the manufacturing process for polymer-based anion exchangers. 

Table 3-3. Structural and technical properties of surface-aminated polymethacrylate and polyvinyl resins.

Type of column Polymethacrylate Polyvinyl resin Polymethacrylate Polymethacrylate... 

Polymethacrylate and polyvinyl resins play only a secondary role in the manufacture of cation exchangers. Presently, the only polymethacrylate-based cation exchanger is offered by Sykam (Gauting, Germany) under the trade name LCA K02. This column differs from its PS/DVB analogue (see Table 3-24) only in the particle size (5 pm) and exchange capacity (0.4 mequiv/g). With a tartaric acid eluent, this phase is preferred for the analysis of heavy and transition metals. 

Fig. 3-130. Separation of alkali metals on a surface-sulfonated polyvinyl resin. - Separator column ION 200 eluent 0.002 mol/ L picolinic acid, pH 2.0 flow rate 2.6 mL/min detection direct conductivity.

Polyvinyl resins Protein plastics Pyroxylin Rosins, synthetic Rosin modified resins Silicone fluid solution (fluid for sonar transducers)... 

Physical Description Colorless liquid with a pleasant, fruity odor. [Note Raw material for many polyvinyl resins ] ... 

Ethyl butyl ketone is used as a solvent for nitrocellulose and polyvinyl resins, and as an intermediate in organic synthesis. 

After 1950, the rapid growth of petroleum and methane based production of plastics and synthetic fibres became the most prominent feature of the Italian chemical industry/ Montedison, created in 1966 through a merger between the electrical company Edison and Montecatini, in that year produced between 50 and 100 per cent of Italy s aromatics, polyethylene, polypropylene, acrylic fibres, PVC and polyesters." Such a remarkable performance may appear surprising, considering that up to 1950 Montecatini s experience in polymerization had been mainly confined to the more traditional phenol plastics (Bakelite, etc.) and urea-formaldehyde resins (Caurit, etc.). The production of polyvinyl resins and the polyamide fibre nylon had been experimental rather than continuous." The most advanced polymerization procedures... 

Table 4 Selected columns based on the surface-aminated polyvinyl resins.

The irritancy of polyvinyl resins is due to the plasticizers and stabilizers, dibutyl thiomaleate, dibutyl sebacate or dioctyl phthalate (Di Lernia et al. 1989 Kanerva et al. 1996). PVC powder may irritate in a special environment. An outbreak of acneform eruptions occurring in a PVC-manufacturing factory has been reported (Goh and Ho 1988). The cause was probably the combination of heat, high humidity and the irritation caused by the PVC powder. Toxic polyvinyl chloride disease from the manufacturing of PVC, consisting of Raynaud s phenomenon, lytic disease of bone, and scleroderma, has been reported. 

The polyvinyl resin is added to the liquid resole during manufacture. 

The polyvinyl resin, in alcohol, is added to a liquid resole. 

Powdered polyvinyl resin is sprinkled on the liquid resole film already on the bonding surface. 

The resole and polyvinyl resins are coated on a non-adhesive backing to be used as film adhesives. 

It is indicated that they can be used to protect natural and synthetic rubber [279-285], polyvinyl resins [286-290], ethylcelluloses [291], phenol-formaldehyde resins [292], polyorganosiloxane pol3miers [293], polyolefins [158, 294], polyethylene terephthalate [295], polyurethans [296], etc. 

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