Binder in paints

Linseed Tung Flax plant (Linum usitatissimum) seeds Tung plant (Aleurites fordii) nuts Europe, Asia, America East Asia Binder in paints Varnish binder in paints... 

Case Study 3 Characterization of Lipid Paint Binders in Paintings... 

P. Prikryl, L. Havlfckova, V. Pacakova, J. Hradilova, K. Stulik, P. Hofta, An Evaluation of GC MS and HPLC FD Methods for Analysis of Protein Binders in Paintings Journal of Separation Science, 29, 2653 2663 (2006). 

Over the past decade, particular attention has been focused on the characterization of organic materials occurring, for example, as the residues of food, medicines and balms in archaeology, as adhesives, and as binders in paints. The mixture of many materials in ancient recipes and technologies, and the chemical changes induced by ageing make it even more difficult to study these samples. 

BASF s BASIL process [15] and the Dimersol process [16] have both been commercialized. The former uses the ionic liquid as a phase transfer catalyst to produce alkoxyphenylphosphines which are precursors for the synthesis of photoinitiators used in printing inks and wood coatings. The imidazole acts as a proton scavenger in the reaction of phenyl-chlorophosphines with alcohols to produce phosphines. The Dimersol process uses a Lewis acid catalyst for the dimerization of butenes to produce Cs olefins which are usually further hydroformylated giving C9 alcohols used in the manufacture of plasticizers. Several other processes are also at the pilot plant scale and some ionic liquids are used commercially as additive e.g. binders in paints. 

This was a single example with minimal characterization. A more direct approach to the polyester involves transesterification of the dimer with neopentyl glycol to oligomers and chain extension with diacids and glycols.331 These species are effective pigment binders in paints. 

Products and Uses General solvent for paints, varnishes, and lacquers as a dissolver and binder in paint products. 

Use As binder in paints, for embedding microscopic preparations, for plasters (can cause irritations), glue for theatrical wigs, in photography etc. . Most D. originates from Sumatra where the natives collect it from scratched tree trunks. A solution of D. in chloroform or xylene is used to preserve microscopic preparations. Triterpenoids from D. (see dammarenes) exhibit antiviral properties. ... 

Chem. Descrip. n-Butyl acrylate polymer Uses Plasticizer for cellulose nitrate and chlorine-contq. binders in paint films... 

Poly (vinyl acetate) (PVAC), A oXymec of vinyl acetate at different degrees of polymerization (Fig. 1.6). Solutions or dispersions of its homopolymers and copolymers are used as binders in paints, lacquers, and adhesives. 

Alkyd A group of binders in paints and inks derived ftom acids and alcohols. 

Drying oils Oils that speed the drying and curing of binders in paint and inks linseed oil is among the best known. 

Drying oils - These natural oils have been used for hundreds of years as film formers and binders in paints. Drying oils are vegetable or fish oils and chemically are triglycerides with the general structure shown in Figure 4. 

Calendula oficinalis seed oil properties are similar to that of tung oil with high viscosity and refractive index and an excellent air-drying tendency, which make these oils excellent feedstock for binders in paints and coatings (Muuse et ah, 1992). Although these crops have been around for a long time further research is needed to exploit their full potential for bioproduct development. 

The binders in paints are also identified using IR spectroscopy, microspectrophotometry, and pyrolysis GC. 

Friel, J. M., Acrylic Polymers as Coatings Binders in Paint and Coatings Testing Manual, 14th edn of the Gardner Sward Handbook, Koleske, J. V. (ecL), American Society for Testing and Materials, Philadelphia, 1995, pp. 39-52. 

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