Stickstoffhaltige Polykondensate,Verfahren zu ihrer Herstellung und deren Verwendung
1,256,979. Laminates. DR. KURT HERBERTS & CO. 15 Dec., 1969 [13 Dec., 1968], No. 60972/69. Heading B5N. [Also in Divisions B2, C3 and D1] Laminates are produced by pressing under increasing pressure at 200 C. several impregnated. glass cloths prepared by impregnating glass cloths with a solutio...
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Zusammenfassung: | 1,256,979. Laminates. DR. KURT HERBERTS & CO. 15 Dec., 1969 [13 Dec., 1968], No. 60972/69. Heading B5N. [Also in Divisions B2, C3 and D1] Laminates are produced by pressing under increasing pressure at 200 C. several impregnated. glass cloths prepared by impregnating glass cloths with a solution in a mixture of cresol and xylene of a resin prepared by reacting in a first stage trimethyl hexamethylene diisocyanate (0À75 mol.) and N,N1-bis-(carboxymethyl) - 4,41 - diamino - diphenylmethane (1.5 mols.) in cresol, followed by reaction of the product in a second stage with ethylene glycol (2À0 mols.) and glycerol (0À54 mol.). |
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