Binders, for coatings

The manufacture of alkyd resins (qv), which are obtained by the reactions of polybasic acids or anhydrides, polyhydric alcohols, and fatty oils and acids, consumes about 17% of the phthahc anhydride demand. While materials such as maleic anhydride, isophthahc acid, and fumaric acid can also be used, phthahc anhydride is the most important. The resin provides a binder for coatings that are apphed for either protection or decoration. Ak quahty concerns have put alkyd resins under pressure from water-based coatings which do not emit organic vapors upon drying. 

Acrylic Polymerization Model. Acrylic polymers are known to have excellent weathering and functional properties as binders for coatings, and they are widely used in the coatings as well as many other industries. To obtain the desirable property/cost balance, random copolymers instead of blends of homopolymers are frequently used. 

Uses The solutions are used as binder, for coating and cementing in munitions and pyrotechnic devices. 

Amoco Polybutene. [Amoco] Polybutene tackifier, sttengthener, tmider in adhesives, as plasticizer for rubber, as vehicle and binder for coatings, as cling additive for LLDFE stretch wrap films, as reactive intermediaie for specialty chemicals, in caulks, sealants, and gazing com. ... 

LoxanoL [Henkel KGaA] 12-Hydroxy-stearyl tdcohol for mfg. of binders for coatings industry additive for latex dectxadve masoruy finishes. 

Vinofan . [BASF AG] Vinyl polymer dispersions for adhesives, pkg. adhesives, binders for coating paper and board, textile coating, and for bonding fiber webs. 

Butene, homopolymer PIB Polybutene Poly-a-butylene U.S, National L. Polymer formed by polymerization of a mixture of iso and normal butenes. Thermoplastic resin used as tackifier, strengthener, and extender in adhesives, as plasticizer for rubber, as vehicle and fugitive binder for coatings, Amoco Lubricants Ashland BP Chem. Harcros. 

Silicic acid is not attacked by radiation, and silicate esters are therefore particularly suitable binders for coatings in radiation-hazard areas such as nuclear power stations. 

Chem. Descrip. Acrylic acid/acrylic ester/acrylonitrile copolymer aq. disp. Uses Binder for coating colors in papermaking Features Contains no plasticizers or soivs. 

Chem. Descrip. Methyl methacrylate-based polymer Uses Binder for coatings on plastics (Plexiglas , Makrolon , polyester, PVC, HIPS)... 

Uses Binder for coatings which are dried at elevated temps. 

Chem. Descrip. Starch/latex copolymer Uses Binder for coating paper... 

Uses Binder for coated materials, adhesives, textiles, fabric backcoating and finishing, paper... 

Uses Binder for coatings Trade Names Silres EP Trade Names Containing SILIKOFTAL EW... 

Uses Binder for coating paper and board Trade Names Styronai NX 4626... 

Aqueous acrylic dispersions have been used as binders for coatings for over 60 years. Their main advantages include low cost and excellent tolerance of additives or pigments however, they have several drawbacks such as the presence of relatively large amounts of water-sensitive additives (protective colloids, emulsifiers, etc.) and the need to use coalescing agents when a continuous film is desired. 

Use of a 64% solution of ammonium nitrate as a binder for coating micronutrients on bulk blends has been described [24]. Over 97% adherence was obtained. The use of liquid fertilizers as a binder was patented [25], and the process - trade named Micro-Charger - may still be in commercial use. 

In addition to these systems, polyesters modified with silicone are important binders for coatings with excellent weather resistance and mechanical properties coupled with improved heat resistance. 

Branched polysiloxanes are more useful as binders for coatings. The branching is introduced by the use of T units in the composition. The organic substitution may be methyl, phenyl or a mixture of both (Figure 2.70). Properties of the final resins are largely governed by the R Si ratio (composition of M, D and T units), and methyl and phenyl content. 

Cellulose acetate is prepared by reacting cellulose with acetic acid or acetic anhydride in the presence of a catalyst. Cellulose acetate has low flammability and better weathering resistance, but is of little interest as a binder for coatings due to its limited solubility and sensitivity to hydrolysis. 

In the electrical/electronic market, acrylic film adhesives are applied to flexible printed circuits. Radiation-curable acrylates are employed as laminating adhesives (furniture) and binders for coated abrasives (Table 9). 

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