Ingredients, rubber compounding resins

Assist the widely dissimilar ingredients used in a rubber compound to coalesce and mix into a homogeneous uniform processable mass. Homogenisers are low-MW polymeric resin blends. The homogenising resin blend contains portions that are compatible with aliphatic, naphthenic and aromatic parts of the elastomers in a blend and higher-MW homologues of the plasticisers. They have a wetting effect. Fatty acid derivatives and phenolic resins are used. 

Uses Intermediate in the manufacture of azo dyes and pigments for printing inks, textiles, paints, plastics, and crayons curing agent for isocyanate-terminated polymers and resins rubber compounding ingredient analytical determination of gold formerly used as chemical intermediate for direct red 61 dye. 

Uses Catalyst for the polymerization of synthetic resins ingredient of rubber compounding and propellent compositions Refs 1) Beil — not found 2) Lucidol Division, Wallace 81 Tiernan Corp, "Organic Peroxides" Pamphlet (Data Sheet No 3), Buffalo, NY (1947) 3) CondChemDict... 

Use Intermediate, rubber compounding, cosmetic ingredients, buffing compounds, alkyd resins, emulsifiers, grease manufacture, and candles. 

Differences among softeners, tackifler resins, and softeners are blurred, and many are dual-purpose ingredients of rubber compounds. Plasticizers also act as softeners and pro-... 

Rubber to metal adhesives contain polymeric materials that are compatible with the ingredients in the primer, as well as the rubber compound to be bonded. Many are based on halogenated polymers. Halogenated polymers or resins are known to wet metals efficiently and can be used in both the primer and adhesive formulation. They provide effective barriers to chemicals that can undermine the adhesive bond. The adhesive also contains very powerful curatives that react with both the polymers in the rubber and the polymers in the adhesive [19]. Difunctional and polyfimctional chemicals are capable of making the film forming polymer a thermoset as well as reacting across the interface of the film to link into the rubber. 

Compounding ingredients which bring about reinforcement of rubbers. The most widely used are carbon black, silica and silicates, zinc oxide, treated whitings, high styrene resins and phenolic resins. 

Recently, van Ooij et al. have reviewed adhesion of steel tire cord to rubber (van Ooij et al., 2009). The authors reviewed the literature extensively and provided an updated model for adhesion to brass-plated tire cord, which incorporated observations made by many techniques. They discussed the effects of different compounding ingredients and the possible alternatives to the current brass coatings. They note that the use of cobalt compounds improves the adhesion between rubber and brass-coated cords, but new adhesion promoters have been developed as replacements for Co, or for combined use with Co. They also discussed the use of phenolic-resin adhesion promoters. They describe the various techniques that have been developed to study the rubber-brass interface and its aging mechanism. 

Manufacture of rubber products requires the incorporation of fillers such as carbon black, silica, and clay, pigments, sulfur, accelerators, retarders, resins, antioxidants, antiozonants, extending oils, zinc oxide, and a variety of other elastomers. The complexity and the variety of compounding ingredients normally present in articles containing natural rubber necessitate the use of a multitude of analytical techniques depending on the information required. 

These adhesives are usually made by blending a nitrile rubber with a phenolic novalac resin, along with other compounding ingredients. Usage in... 

This compound also uses Neoprene W type polychloroprene rubber. The compound, though coloured black with a few parts of carbon black is mainly filled with silica, which is a reinforcing mineral filler. The silica also helps to bond the rubber to the steel cords other ingredients added for this purpose include cobalt naphthenate. A commonly used system for this purpose is one comprising resorcinol and hexamethylene tetramine (HMT) which acts as a formaldehyde donor to form a phenolic resin in situ, but this is not suitable for Neoprene compounds because resorcinol is a fast accelerator for Neoprene vulcanization and interferes with its processing safety. 

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