| abstract |
Low temperature, fast curing compositions suitable for coatings, particularly for paper and other heat sensitive substrates, consist of certain epoxy resins, certain organopolysiloxanes containing silanol groups and contain organo aluminum catalysts. For example, glassine or Kraft paper are coated with a mixture of a cycloaliphatic epoxy resin having an epoxide equivalent weight of 140. a hydroxyl endblocked polydimethylsiloxane having a degree of polymerization of about 10 and aluminum tris(acetylacetonate) and cured in one minute at 135°C. |