Decel Cellosolve

TECHNICAL DETAILS :

DECEL CELLOSOLVE is a colourless, slightly hygroscopic liquid with a mild odour. It is miscible with water and many organic liquids and forms an azeotropic mixture with water. It has good solvent power for natural and synthetic resins, particularly nitrocellulose and ethyl cellulose and can be diluted to a considerable extent with toluene and xylene. It contains a hydroxyl group and can consequently be converted into esters and ethers.

TECHNICAL SPECIFICATIONS

TEST METHOD

ASTM standards are published by the American Society for Testing and Materials, 1916 Race Street, Philadelphia Pa. 19103, USA.

SOLVENT POWER

DECEL CELLOSOLVE is an excellent solvent for nitrocellulose, celluloid, ethanol - soluble resins, chlorinated rubber, polyvinyl acetates, polyvinyl butyrals, aldehyde and ketone resins, urea formaldehyde and melamine formaldehyde resins and polyacrylates. It dissolves cellulose ethers more readily than does methyl glycol. Mixed with methylene chloride, ethylene chloride or low boiling esters, it also dissolves cellulose acetate. It also dissolves castor oil and linseed oil. It is miscible with the usual plasticizers.

DECEL CELLOSOLVE will not dissolve dammar, rubber bitumen, cellulose acetate, ester gums, polystyrene, unmodified polyvinyl chloride (for lacquers), polyvinyl carbazole as well as mineral oils or some vegetable oils. Shellac, chlorinated polyvinyl chloride and a number of other synthetic resins swell in DECEL CELLOSOLVE.

APPLICATIONS

DECEL CELLOSOLVE is a very useful solvent for leather seasoning. As a coupling agent in the production of emulsifiable oils, additive for hydraulic fluids and metal degreasing agent. DECEL CELLOSOLVE is particularly valued as a slowly evaporating and pleasantly odoured solvent for use in the production of lacquers from nitrocellulose and cellulose ethers. Its high dilution capacity for ethanol, toluene and white spirit of great advantage in lacquer solutions. It surpasses many other technical solvents in this respect.

When DECEL CELLOSOLVE is combined in a lacquer with large quantities of diluents, because of its low rate of evaporation, it is still present in the last traces of solvent evaporating. Owing to its high solvent power for the non-volatile constituents, it thus greatly aids the formation of a clear lacquer film.

Small quantities of DECEL CELLOSOLVE may be added to nitrocellulose and cellulose ether lacquers (particularly the latter) to increase their dilution capacity, to control their evaporation rate and to improve their flow and gloss. A certain degree of moisture is also tolerated without its causing "blushing" or turbidity of the drying lacquer film. If a lacquer solution contains resins that are relatively insoluble in DECEL CELLOSOLVE e.g. ester resins or phenol formaldehyde resins, then the proportion of active solvents for these must be high enough to hold them in solution during the drying stage.

DECEL CELLOSOLVE dissolves dried nitrocellulose lacquer films only slowly, it is excellent in brushing lacquers for application to oil cloth, rubber cloth and other fabrics and for general use in lacquers intended for application as at multicoat system. Mixtures of DECEL CELLOSOLVE with ethyl glycol acetate have also proved useful for this purpose. DECEL on account of its mild odour, is used in lacquers whenever a stronger smelling solvent is undesirable. For this application, it is usually mixed with ethanol.

The addition of small quantities of DECEL CELLOSOLVE to alkyd resin lacquers and cellulose ether lacquers considerably reduces their viscosity and thus improves their brushabililty. For cellulose ether lacquers in particularly, DECEL CELLOSOLVE can hardly be surpassed as an auxiliary solvent. It may also be used with advantage in cleaning agents and paint strippers. A number of vegetable oils can be very rapidly dispersed in water by using DECEL (CELLOSOLVE). It may also be used to improve the stability of such emulsions.

DECEL CELLOSOLVE does not attack rubber.

It is also used as a solvent for "Epikote" resins and for the resins and plastics used in the coating of transparent and non-transparent paper to produce waterproof or glossy layers. DECEL CELLOSOLVE is a low volatile solvent used for regulating drying time, for improving dilutability (e.g. with petrol) and flow properties as well as for preventing blushing of lacquer films. Its low volatility is also utilised for reducing the viscosity at alkyd resin varnishes and to improve their spreadability.

NITROCELLULOSE INKS

DECEL CELLOSOLVE can be used in screen, gravure and flexographic ink formulation based on nitrocellulose. This basic requirement for screen inks are; good flow properties, moderate drying rate and low solid content for easy flow through the screen (but maintaining opacity for single coat application). Because of its evaporation rate, it is readily adaptable to the requirements of the system. If an especially high boiling solvent is required, DECEL CELLOSOLVE can be used.

A typical solvent formulation for a screen ink could be as follows;-
                           
DECEL CELLOSOLVE - 59.0(% by weight)
High Aromatic Solvent - 25.0(% by weight)
Butyl Acetate - 16.0(% by weight)

DECEL CELLOSOLVE is also used as an active solvent in spirit based flexographic and gravure inks. These inks are formulated on low nitrogen content nitrocellulose (the alcohol - soluble grades) about 20% of active solvent being added as an aid to solubilisation. DECEL (CELLOSOLVE) solvents being true solvents for nitrocellulose can therefore be used in this application.

SUGGESTED FORMULATIONS

PACKAGING INFORMATION

205 Its HDPE barrels, nett weight per drums 195 kgs.