| 摘要 |
<p>1,219,719. Polymer-containing coating compositions. COLUMBIA RIBBON & CARBON MFG. CO. Inc. 23 April, 1969 [20 June, 1968], No. 20701/69. Headings C3P and C3T. [Also in Division D2] An ink-containing layer for a pressuresensitive transfer element (see Division D2) is made by applying a composition comprising styrene-methyl methacrylate copolymer, butyl stearate, refined rapeseed oil, sulphonated vegetable oil, blue toning paste, black pigment, ethyl acetate, methyl ethyl ketone and toluol to a support, and evaporating the solvents. A porous layer containing oil in the pores may be applied by coating with a composition comprising polymethyl methacrylate, butyl stearate, methyl ethyl ketone, and optionally silicone oil and lecithin, and evaporating the solvent.</p> |
