Polypropylene ether triol

After 8 h of reaction, the reactor was allowed to cool. A two-layer liquid formed. The top layer was found to contain mostly polypropylene ether triols with about 20% by weight diethylene glycol and 5% by weight toluene diamines. The top layer was purified by vacuum distillation at 2 mm Hg and 200° C to produce 320 g of a light brown liquid residue. This residue (polyols) was used as a replacement for 5% by weight of the Pluracol 535 polyol in the formulation of a flexible polyurethane foam. A flexible foam which had good resiliency and a density of 2.2 Ib/ft3 was obtained. At higher replacement levels, lesser quality foams were obtained. 

A 3000 molecular weight polypropylene ether) triol (Arcol F3020, 90 g) was mixed with maleic anhydride (60 g) and zinc chloride (2.25 g) in a three-necked round-bottomed flask equipped with a magnetic stirrer, a condensor and a thermometer. Under a nitrogen atmosphere, the reaction mixture was heated to 190 °C... 

Baycoll BT-1380 Bayer (Germany) 50 Branched polypropylene ether triol... 

As stated, tertiary amines catalyze both the hydroxyl/isocyanate and the water/isocyanate reactions. One-shot foams utilizing primary hydroxyl-terminated polyesters as well as all types of prepolymer foams require tertiary amine catalysis only. Polypropylene ether one-shot foam formulations based on triols, in part, because of their low viscosity (about 300 cP versus 10000-30000 cP for polyesters or prepolymers) require the use of tertiary amine-metal catalyst combinations, even if the percentage of primary hydroxyl groups in the polyether is increased by capping with ethylene oxide. This is because of the relatively low polypropylene glycol activity. 

Synonyms Polyether polyol, flexible Polyether polyol, flexible, amine-terminated Polyether polyol, rigid Polyol, flexible Polyol, flexible, amine-terminated Polyol, rigid Polyoxypropyleneamine Polyoxypropylene triol Polypropylene ether polyol Polypropylene polyether polyol... 

Polyoxyl 20 stearate. See PEG-20 stearate Polyoxyl 40 stearate. See PEG-40 stearate Polyoxyl 50 stearate. See PEG-50 stearate Polyoxyl 55 stearate. See PEG-55 stearate Polyoxymethylene glycols. See Formaldehyde Poly [oxy(methylsilylene)]. See Methicone Polyoxypropylene (9). See PPG-9 Polyoxypropylene (12). See PPG-12 Polyoxypropylene (17). See PPG-17 Polyoxypropylene (20). See PPG-20 Polyoxypropylene (26). See PPG-26 Polyoxypropylene (30). See PPG-30 Polyoxypropylene (34). See PPG-34 Polyoxypropylene (40). See PPG-40 Polyoxypropyleneamine. See Polyether polyol Polyoxypropylene (3) methyl ether. See PPG-3 methyl ether Polyoxypropylene/polyoxyethylene block polymer Polyoxypropylenefpolyoxy-ethylene copolymer. See EOfPO block polymer or copolymer Polyoxypropylene triol. See Polyether polyol Polyphosphoric acid, ammonium saH. See Ammonium polyphosphate Polyphosphoric acids, compds. with triethanolamine Polyphosphoric acids, esters with triethanolamine. See TEA-polyphosphate Polyphosphoric acid sodium saH. See Sodium polyphosphate Polyphosphoric acids, potassium saHs. See Potassium polyphosphate Polyphosphoric acids, sodium salts. See Sodium polyphosphate Polyphosphoric acid, triethanolamine ester. See TEA-polyphosphate Polypropene. See Polypropylene Polypropylene CAS 90034)7-0... 

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