摘要:
THERMOSETTABLE POLYMERIC COMPOSITIONS INCORPORATING AN AROMATIC AMINE FORMALDEHYDE RESIN AND AN AROMATIC POLYCARBOXYLIC COMPOUND. WHEN THERMOSET BY HEAT, THESE COMPOSITIONS DISPLAY IMPROVED THERMAL STABILITY. BECAUSE OF THEIR SOLVENT SOLUBILITY CHARACTERISTICS, THESE COMPOSITIONS ARE USEFUL FOR PREPARING VARNISHES. THEY ARE ALSO USEFUL IN MOLDING POWDERS.
摘要:
THERMOSETTABLE POLYMERIC COMPOSITIONS INCORPORATING AN AMINE MODIFIED NOVOLAC RESIN AND AN AROMATIC POLYCARBOXYLIC COMPOUND. WHEN THERMOSET BY HEAT, THESE COMPOSITIONS DISPLAY IMPROVED THERMAL STABILITY.
摘要:
1,226,731. Impregnated glass cloth laminates. MONSANTO CO. 1 Jan., 1969 [2 Jan., 1968], No. 100/69. Heading B5N. [Also in Divisions C3 and D1] A laminate may comprise a plurality of mats of silaceous inorganic material, e.g. glass cloth bound with a composition comprising a volatile liquid carrier, an inorganic binder material having a fusion point above 700‹ C. and a particle size not exceeding 10 Ám, a soluble amine-phenol-aldehyde resin and phosphoric acid or a soluble salt or ester thereof. 1-25% of binder may be used. In examples the carrier is water, the inorganic binder material is kaolin with or without hydrated alumina, the resin is a condensate of phenol, formaldehyde and dicyandiamide, the phosphorus compound is ammonium phosphate, ethyl ammonium phosphate or butyl ammonium phosphate, and the glass material is woven glass cloth. The binder also includes a quaternary ammonium silicate.