Lubricants melamine-formaldehyde

An optical composition, as regards technological properties, is the containing 45% of melamine-formaldehyde oligomer, 55% of CDA, 1% of lubricant and 2% of PEF, P-509. 

Melamine-formaldehyde molding powders are generally prepared by methods similar to those used for UF molding powders. In a typical process an aqueous syrup of MF resin with melamine-formaldehyde ratio of 1 2 is compounded with fillers, pigments, lubricants, stabilizers, and accelerators in a dough-type mixer. The product is then dried and ball-milled by processes similar to those used for UF molding powders. 

The production of MF was first patented in 1935 by Henkel (Brydson, 1999). Today, MF polymers have commercial applications in decorative laminates for chipboard (a low cost substitute for solid wood) and unbreakable tableware. During synthesis, an excess of formaldehyde is heated with melamine at 80°G in alkaline conditions to produce an aqueous, syrup-like prepolymer. The prepolymer contains melamine-formaldehyde in a molar ratio of 1 2 (Figure 3.8). It is compounded with fillers, pigments, lubricants, stabilizers and sometimes accelerators, dried and milled to powder. Heating the powder to mould it at 145-165°C and 30-60 MPa produces a solid, thermosetting network. 

Melamine-formaldehyde resins in molded articles dioctyl phthalate (for use as lubricant)... 

Lubricant Strand-hardening agent Polyethyleneimine polyamide Aqueous methylated melamine-formaldehyde resin Cationic fatty acid amide or tetraethylene pentamine ... 

Chem. Descrip. Zinc stearate CAS 557-05-1 EINECS/ELINCS 209-151-9 Uses Lubricant for urea/formaldehyde, melamine plastics antitackiTrer, dusting agent, and lubricant for surfs, of uncured rubber slabs flatting agent for solvent-based paints... 

Uses Release agent lubricant blocking agent chemical intermediate coupling agent in acrylic, epoxy, polyamide, polyether, silicone, vinyl polymers, cellulosics, furan, melamine, nitrocellulose, PU, polyvinyl butyral, and urea-formaldehyde, for adhesives, coatings, filler treatment, foundry, inks, rubber, sealants, and textile applies. Manuf./Distrib. ABCR AP Resources Alfa Aesar Chisso Am. Fluka Gelest Silar Labs TCI Am. United Chem. Tech. 

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