Detail of "23996-55-6"

Reference

Use of Polish raw materials in the manufacture of polyurethane-polyisocyanurate foams

Use of Polish raw materials in the manufacture of polyurethane-polyisocyanurate foams. Maslowski, Henryk; Czuprynski, Boguslaw; Kozlowski, Kazimierz; Jeszke, Zygmunt (Inst. Technol. Inz. Chem., Akad. Tech.-Roln., Bydgoszcz, Pol.). Polimery (Warsaw), 29(3), 118-20 (Polish) 1984. CODEN: POLIA4. ISSN: 0032-2725. DOCUMENT TYPE: Journal CA Section: 37 (Plastics Manufacture and Processing) Rigid polyisocyanurate-polyurethane foams were prepd. from Polish polyisocyanates [oligomer isocyanate byproducts of TDI manuf. (Izocyn TSA) stabilized with tris(2-chloroethyl) phosphate (Izocyn TSA and Izocyn TSA-1)], polyether polyols [Rokopol TF33 (polyoxyprpylated sucrose), Rokopol T (polyoxypropylated toluenediamine-triethanolamine), and Rokopol TG-500 and Rokopol G1000 (polyoxypropylated glycerol)], trimerization catalysts [Kalpur TL (1-allyl-2-methylimidazole) [13173-22-3], Kalpur PAC (1-cyanoethyl-2-methylimidazole) [23996-55-6], AcOK [127-08-2], and K2CO3], and conventional blowing agents and structure stabilizers. The resulting foams had good mech. properties. The suitability of the Izocyns decreased in the order TS > TSA-1 > TSA, and at best did not match that of MDI.

Polymerization catalysts for fire-resistant, rigid polyurethane foams

Polymerization catalysts for fire-resistant, rigid polyurethane foams. Zabski, Leszek; Walczyk, Wladyslaw; Jedlinski, Zbigniew; Szmacinski, Andrej; Szczepkowski, Leonard; Papinski, Jozef; Zmojdzin, Andrzej; Zagorski, Wojciech; Makarski, Stanislaw (Polska Akademia Nauk, Zaklad Polimerow, Pol.). Ger. (East) DD 207548 A5 7 Mar 1984, 17 pp. (German). 14967-25-0 which is the cas registry number of one of substances is just one of reagents here. (German Democratic Republic). CODEN: GEXXA8. CLASS: IC: C08G018-16. APPLICATION: DD 83-247632 1 Feb 1983. PRIORITY: PL 82-234911 1 Feb 1982. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) Compns. with good storage stability for the prepn. of fire-resistant, rigid polyurethane foams contain polyols, fire retardants, 0.1-6% imidazole polymn. catalyst bearing alkyl or aryl groups in the 2-position and CH2CH2CN, allyl, vinyl, or aminoalkyl groups in the 1-position, and optionally ￡1% org. Sn compd. contg. S. Thus, mixing polyepichlorohydrin glycerol ether (OH no. 410) 75, 2-methyl-1-imidazolepropanenitrile [23996-55-6] 2.5, polyether polyol (Rokopol T, OH no. 463) 25, silicone surfactant 1, CCl3F 25, H2O 1, and polyisocyanate (Desmodur 44V20) 123 parts gave a foam with gel time 148 s, rise time 190 s, tack-free time 220 s, bulk d. 0.0324, burning length (ASTM D 1692-68) 2.9 cm, and O index 22.3, compared with 125, 150, 180, 0.0335, 2.7, and 22.4, resp., when the polyol mixt. was stored 6 mo before addn. of the isocyanate. .