Nitrocellulose Crosslinking Agents

Crosslinking Agents for Nitrocellulose The cross-linking of cellulose its derivs is mentioned briefly by Oct (Ref 3). Jullander Blom-Sallin (Ref 2) studied the crosslinking of NC by means of TiCl ... 

Chem. Descrip. Butylated melamine-formaldehyde resin in n-butanol Uses Crosslinking agent for low temp, or ambient acid cured systems for kitchen cabinet and wood furniture finishes, metal coatings modifying resin for fast curing nitrocellulose coatings Properties APHA 30 max. color dens. 8.55-8.85 Ib/gal vise. (Gardner-Holdt) Y-Zj flash pt. (PMCC) 42 C 64.5-68.5% solids Resimene 7512 [Solutia]... 

Uses Surfactant, flow aid, leveling agent, slip agent in solv.-based coatings, amine-neutralized water-reducible coatings such as alkyd/ melamine, hydroxyl/acrylics, self-crosslinking acrylics, polyester/ melamine, nitrocellulose/PU systems Tallicin 5311 [Pfiaumer Bros.]... 

NFPA Health 0, Flammability 1, Reactivity 0 Uses Plasticizer, solvent, film-former in nitrocellulose lacquers, elastomers, explosives, nail polishes, solid rocket propellants, adhesives, sealants solvent for resins, perfume oils perfume fixing agent textile lubricant insect repellent nonreactive epoxy resin diluent safely glass printing inks paper coatings oral pharmaceuticals in food-pkg. adhesives in paper/paperboaid in contact with aqTfatly foods adjuvant in slimicides in food-contact paper/paperboaid in cellophane for food pkg. solvent for adjuvants in fo -contact crosslinked polyesters plasticizer in food-contact mbber articles for repeated use Regulatory FDA 21CFR 175.105,175.300,176.170,176.300,177.1200, 177.2420,177.2600 FDA approved for orals SARA reportable BP, EP compliance... 

Other common binders include nitrocellulose (of lower than 12.6% nitrogen content, with acetone as the solvent), polyvinyl alcohol (used with water), and Laminae (an nnsaturated polyester crosslinked with styrene—the material is a liquid until cured by catalyst, heat, or both, and no solvent is required). Epoxy binders can also be used in liquid form during the mixing process, and then allowed to enre to leave a final, rigid product the caution here is the fact that many epoxy enring agents are amine compounds, which are basic. Be sure the epoxy system is compatible with all other components in the composition. 

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