Melamine polymers

For resistance to actinic degradation, the use of certain forms of titanium oxide is an alternative to chrome salts. Another approach has been the use of polymerized methylol melamine on cotton (145). In this case, the action of sunlight leads to gradual breakdown of the melamine polymer after several years. After this, actinic degradation of cotton proceeds as it does in unprotected cotton. 

Aromatic cyclic chains are more stable than aliphatic catenated carbon chains at elevated temperatures. Thus linear phenolic and melamine polymers are more stable at elevated temperatures than polyethylene, and the corresponding cross-linked polymers are even more stable. In spite of the presence of an oxygen or a sulfur atom in the backbones of polyphenylene oxide (PPO), polyphenylene sulfide (PPS), and polyphenylene sulfone, these polymers are... 

A similar story of technical development, raw material cost reduction, and adhesive optimization can also be told for the amino resins, the urea and melamine polymers. Especially because of their versatile hot- and cold-curing capabilities, this development also led to the widespread replacement of natural adhesives. The rapid postwar growth of amino resins, along with phenolics... 

It can be explained by high nonspecific binding of the Eu-contained reagent to polystyrene surface. Nevertheless, it is possible to conclude that Nylon-melamine polymer can be the usefid material as triazine-mimicking coating of piezo-crystals and electrodes. 

The heat resistance and water-white color of melamine polymers make them ideally suited for use in the home as high-quality molded dinnerware melamine-surfaced decorative laminates find wide application in the home. The decorative pattern may be a solid color, a wood grain, or any design. 

Synonyms Melamine/formal copolymer Melamine/formaldehyde copolymer Melamine, polymer with formaldehyde Melamine resin Polyoxymethylene melamine (INCI) 1,3,5-Triazine-2,4,6-triamine, polymer with formaldehyde... 

Melamine, polymer with formaldehyde. See Melamine-formaldehyde resin... 

Melamine, polymer with formaldehyde. See Melamine-formaldehyde resin Melamine pyrophosphate CAS 15541-60-3 Formula 2C3H6N6 H4O7P2 Properties Solid sol. 0.09 g/100 ml water Uses Flame retardant additive for polymers, latex intumescent coating formulations thermally stable Manuf./Distrib. Akzo Nobel http //www.akzonobei.com. Anhydrides Chems. http //www.broadview-tech.com. Great Lakes http //www.greatiakeschem.com, Miljac http //www.miijac.com, StanChem http //WWW. aibi. com... 

Melamine polymers are becoming more common in paints and inks. What are they and how do they form a protective film What else are these polymeric materials used for ... 

Melamine "A manufactured fiber in which the fiber-forming substance is a synthetic polymer composed of at least 50% by weight of a cross- linked melamine polymer." ... 

A patent review [4] showed that early intumescent formulations incorporated in polymers contained a precursor of phosphoric or polyphosphoric acid, a pentaerythritol type char source, and melamine, as typical formulations of intumescent coatings. Further developments tried to reduce the complexity of the additive system, for example by using a binary combination of the add precursor with nitrogen-containing compounds, which also act as a char source. While the add source is generally APP, typical examples of the second component are produds of condensation of formaldehyde with substituted ureas products of readions between aromatic diisocyanates and pentaerythritol or melamine polymers containing the piperazine ring in the main chain, also combined with substituted s-triazine, hydroxyalkyl isocyanurate etc. 

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