Molding gels synthetic

Candy starch jellies include sugar and (modilied) starch boiled to a certain viscosity and poured into a starch mold to form semi-solid jelly. Water-soluble synthetic colorants are generally added at concentrations of approximately 6% before the mixture is placed in gel-forming blocks. The shape and thickness of the final semi-transparent gel and subsequent coating with sugar sand may cause the color to become shaded. Natoal colorants are rarely used for such applications due to their low stability to temperature and pH. 

Polymerized vinyl chloride as a homopolymer is hard and brittle, making it difficult to work and impractical as a commercial material. In 1926, Waldo Lonsbury Semon (1898—1999) was working for B. F. Goodrich searching for a synthetic rubber that could adhere to metal objects. Semon examined vinyl chloride and found that when polyvinyl chloride powder was mixed in certain solvents, he obtained a stiff gel that could be molded into a plastic material. The material s hardness and pliability depended on the mix of solvent and polyvinyl chloride. Semon... 

Monolithic stationary phases have emerged in the last few years as an attractive alternative to particle-packed capillary columns as a method to completely eliminate the need for bed-retaining frits and their associated problems [302,306,307]. The dimensional stability of the monolithic structures results from their rigidity and/or chemical attachment to the inner wall of the capillary. Several synthetic strategies have been described, but the most useful are based on molded porous polymers [306,326-331], molded porous sol-gel continuous beds [302], hydrothermal immobilization of packed beds [332] and particle-fixed continuous beds [302,333,334]. 

Applications automotive, boats, buttons, chairs, coatings, construction, ducts, electrical components, gel coats, marine laminates, pipes, sheet molding compounds, shower stalls, synthetic marble, tanks, wind turbine blades ... 

Glycol modifier for mold-able gels Japan 8,860 1973 Japan Synthetic Chemical Ind. 

Uses Gellant, emulsifier, and thickener for cosmetic creams, lotions, sun care, lipstick gels, makeup, depilatories, ointments, salves, sustained-release pharmaceuticals, furniture/wood/leather polishes, leather/textile/wood/paper finishes, candles, molding, lithography Properties Wax m.p. 62-65 C acid no. 17-24 Koster Keunen Synthetic Japan Wax [Koster Keunen]... 

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