Creamed latex rubber

Unitex Creamed. [Guthrie Latex] High ammonia natural rubber creamed latex fa use in extruded thread. 

In section C2,6,4.3 it was shown how the addition of non-adsorbing polymer chains induces a depletion attraction between colloidal particles. If sufficient polymer is added, these attractions can be strong enough to induce a phase separation of the colloidal particles. An early appHcation of this was the creaming of rubber latex [93]. 

Creamed Latex. See Natural rubber Cream of tartar. See Potassium acid tartrate Creamtex. See Hydrogenated vegetable oil Creatine (INCI). See Creatinine Creatinine... 

Regulatory FDA 21CFR 172.615, 175.125, 175.300, 177.1200, 177.1210, 177.2600 Manuf./Distrib. A. Schulman http //www.aschulman.com, Elementis Spec. Perf. Polymers http //www.elementis-specialties.com, Firestone Syn. Rubber http //WWW. firesyn. com Trade Name Synonyms Creamed Latex [Guthrie Latex http //www.guthrielatex.com], CryOfine NR t[Maybrook] Denflex 3060 [Diversified Compounders] Denflex 3062 [Diversified Compounders] DPNR [H.A. Astlett]... 

See also Polyisoprene Natural rubber latex Synonyms Rubber latex, natural Definition Vise. liq. contg. > 60% rubber classified by method of concentration and type of preservative (e.g., low-ammonia centrifuged grade, creamed latex, evaporated latex)... 

Adeka Chlorinated Rubber CR-5 Rubber, chlorinated 9006-04-6 Creamed Latex CryOfine NR Denflex 3060 Denflex 3062 DPNR... 

Uses stabilizer in steroid creams and rubber latex inhibitor in antifreeze solutions and cooling fluids in floor-polish remover in nystatin cream and aminophylline epoxy-curing agent accelerator in color development baths in photography in veterinary preparations in electroplating and electrophoretic gels, dyes, fungicides, insecticides, synthetic waxes, textile lubricants, and eye and nose drops solvent for casein, albumin, shellac... 

Rubber products Latex creaming, latex thickening. 

Creamed latex is made by the use of a creaming agent such as ammonium alginate. The creaming agent helps form a rubber-rich layer at the top of the holding tank. This is a slow process several weeks may be required before the desired concentration is reached in the top layer, which is drawn off for shipment. Creamed latex has a minimum dry rubber content of 62% and is preferred by rubber thread manufacturers because of its good filterability. 

Most latex concentrate produced today would fall into one of the four types specified by ASTM specification D 1076 (1) centrifuged latex with normal ammonia, centrifuged with low ammonia, creamed latex with normal ammonia, and creamed with low ammonia. The minimum content for latex solids varies from 61.5% to 64.0% and dry rubber content minima from 60.0% to 62.0%. Total alkalinity is calculated as NH3 based on the water phase of the latex and is 1.6% minimum for normal ammonia latex, 1.0% for the minimum ammonia type. Lx)w-ammonia latex (often made with a second stabilizer) has less odor and requires less neutralization in subsequent processing, but other factors hinder its use. A very small amount of latex is vulcanized in the liquid state and sold for special compounding. 

Natural rubber latex as obtained from the tree contains only about 30% by weight of rubber. Concentration of the latex is done by either centrifuging, creaming, electro-decantation or evaporation. 

One of the methods of concentrating normal rubber latex the rubber globules rise to the surface of the heavier serum, the process usually being hastened by the addition of creaming agents such as ammonium alginate. 

GLOVES SURGEONS RUBBER LATEX CREAM COLOR SIZE 8 1/2 6515014736323 PG 195.00 ... 

Conjugated estrogens vaginal cream exposure has been reported to weaken latex condoms. Consider its potential to weaken and contribute to the failure of condoms, diaphragms, or cervical caps made of latex or rubber. 

Vaginal cream contains mineral oil and vaginal suppositories contain an oleaginous base which may weaken rubber or latex products such as condoms, avoid use within 72 hr following treatment with vaginal cream or suppositories... 

Field latex is bulked in large tanks at a factory adjacent to the rubber estate. If a high-solids latex is desired, the field latex is strained, stabilized with ammonia or other chemicals, such as soap and bactericide, and either centrifuged or creamed to 62-68% total solids,... 

OTHER COMMENTS used as an acidulating agent in textile dyeing and finishing coagulates latex in rubber production an additive in animal feed and a food preservative meta salts made from formic acid include nickel, cadmium, and potassium formate nickel formate may be used in the preparation of supported nickel catalysts reported uses include non-alcoholi< beverages (1.0 ppm), ice cream (5.0 ppm), candy (5.0-18 ppm), baked goods (5.0-6.1 ppm). 

Concentration of latex is necessary because of the preference by the latex products manufacturing industry for latex with high dry rubber content (DRC), and for transport economy and purification of the latex. The processes for concentration include evaporation, electrodecantation, creaming, and centrifuging. Evaporation removes only water and hence the ratio of non-rubber constituents to rubber, and the particle size distribution remain unchanged. However, the other three processes involve the partial removal of non-rubber materials and smaller rubber particles. Centrifuging and creaming are more popularly used for the production of concentrated latex. 

A white upper layer or rubber cream consisting of rubber particles amounting to 25 to 45% of latex volume. The particles are strongly protected in suspension by a film of adsorbed proteins and phospholipids. This protein and phospholipid layer imparts a net negative charge to the rubber particle, contributing to colloidal stability. ... 

Uses Waterproofing of cements, concrete, stucco, paper, textiles frothing aid and foam stabilizer in acrylic and SBR latex systems foam rubber additive foam stabilizer scouring agent surfactant, lubricant, emulsifier in cosmetics (hand creams, brushless shaving creams, etc.) emulsifier, stabilizer, anticaking... 

Properties Clear liq. m.w. 289.47 Toxicology TSCA listed Uses Surfactant softener, conditioner, emulsifier, wetting agent, vise, builder, stabilizer, antistat for cosmetics emollient, lubricant, and slip agent for shave creams gel sensitizer for latex foaming agent for bubble baths hydrotrope, thickener for hypochlorite cleaners thixotrope for water-based paints emulsion stabilizer for textiles, petrol, additives, paper, plastics, rubber Trade Name Synonyms Aromox C/12-W [Akzo Nobel Surf. Chem. 

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