Latex coagulation

The ABS polymer is recovered through coagulation of the ABS latex. Coagulation is usually achieved by the addition of an agent to the latex which destabilizes the emulsion. The resulting slurry can then be filtered or centrifuged to recover the ABS resin. The wet resin is dried to a low moisture content. A variety of dryers can be used for ABS, including tray, fluid bed, and rotary kiln type dryers. 

The use of porous formers ia the dippiag process, or porous molds prepared from plaster of Paris or uaglazed porcelaia with a surface pore size smaller than the majority of mbber particles, has been widely adopted ia the latex iadustry. With the porous porcelaia formers, the mbber particles are filtered oa the surface of the formers. The mbber latex coagulates because of its high coaceatratioa to form a film of increa sing thickness as more water is absorbed iato the ceramic. Its rate of iacrease diminishes sharply beyoad an optimum period of time, however, depending on the various characteristics of the ceramic. 

HCOOE1, an organic acid which may be used in diluted form as the latex coagulant in the production of natural rubber. 

Uses Manufacture of acetate rayon, acetic anhydride, acetone, acetyl compounds, cellulose acetates, chloroacetic acid, ethyl alcohol, ketene, methyl ethyl ketone, vinyl acetate, plastics and rubbers in tanning laundry sour acidulate and preservative in foods printing calico and dyeing silk solvent for gums, resins, volatile oils and other substances manufacture of nylon and fiber, vitamins, antibiotics and hormones production of insecticides, dyes, photographic chemicals, stain removers latex coagulant textile printing. 

The compound is used as a mordant in dyeing and as a latex coagulant. It also is used as an acid catalyst and as an analytical standard for zinc. 

Phosphoric acid is used as an intermediate in the production of animal feed supplements, water treatment chemicals, metal surface treatments, etching agent, and personal care products such as toothpaste. It is used as a catalyst in the petroleum and polymer industry. Phosphoric acid is used in food as a preservative, an acidulant, and flavor enhancer it acidifies carbonated drinks such as Coca Cola and Pepsi, giving them a tangy flavor. Phosphoric acid is used as a rust remover and metal cleaner. Naval Jelly is approximately 25% phosphoric acid. Other uses for phosphoric acid include opacity control in glass production, textile dyeing, rubber latex coagulation, and dental cements. 

Use Manufacturing of acetic anhydride, cellulose acetate, and vinyl acetate monomer acetic esters chloroacetic acid production of plastics, pharmaceuticals, dyes, insecticides, photographic chemicals, etc. food additive (acidulant) latex coagulant oil-well acidizer textile printing. 

Use Mayonnaise, salad dressings, pickled foods, preservative, medicine (antifungal agent), latex coagulant. 

Use Acidic catalyst, latex coagulant, reagent, intermediate, mordant. 

Incorporation of aqueous dispersions of antimony pentoxide into latex requires a pH adjustment prior to adding it to latex to prevent latex coagulation. Dispersions of antimony pentoxide usually have a pH = 5 which is too low for use in most latex formulations. Adjustment of pH can be made with ammonia but prior to such a pH adjustment it is necessary to dilute the dispersion to a concentration below 40% SbzOs. 

Propsolv. [Quantum/USI] Solvent blends Solvent for shellac, diemical specialties, latex coagulants. 

S. Natural rubber latex coagulates readily. If acids are not available, use one volume of... 

Dusicnan zinecnaty Nitric acid, zinc salt, hexahydrate Zinc nitrate hexahydrate Zinc(ll) nitrate, hexahydrate (1 2 6). Acidic catalyst, latex coagulant, reagent, intermediate, mordant. Crystals mp = 36 d= 2.065 soluble in water (50%), alcohol. Blythe, Williams Ltd, Mallinckrodt Inc. Nihon Kagaku Sangyo. 

An interesting interaction of poly(vinyl alcohol) on the initiator system was reported by Hayashi and co-workers [149]. Using poly(vinyl alcohol) NO-05 from Nippon Synthetic Chemical Industry Co., Ltd., freed of low-molecular-weight polymer and of sodium acetate by dialysis, they found that stable latices could be formed using a hydrogen peroxide-ascorbic acid redox initiator. When this initiator was used in the absence of the protective colloid, the latex coagulated. On the other hand, even without any protective colloid, a very stable poly(vinyl acetate) latex was formed when the initiator consisted of potassium... 

Uses Cosmetics and pharmaceutical formulation latex coagulating bath ... 

Chem. Descrip. PEG-8 CAS 25322-68-3 EINECS/ELINCS 225-856-4 Uses Humectant, coupling agent for lotions, cosmetics, and pharmaceuticals release agent for rubber latex coagulating bath in PVAc paints Properties Clear liq. water-sol. m.w. 380-420 vise. 6.8-8.0 cSt (210 F) pH 4.5-7.5 (5%) nonionic Lumulse PEG 600 [Lambent Tech.]... 

---