| 摘要 |
<p>Ceramifiable silicone adhesives having tack and green strength are provided by mixing a ceramifiable filler with certain silicone pressure-sensitive adhesives. The silicone pressure-sensitive adhesive comprises approximately equal weights, plus or minus five percent, of a polydiorganosiloxane having a viscosity of from 1 to 1000 Paxs and a xylene-soluble resin copolymer of R3SiO1/2 siloxane units and SiO4/2 siloxane units. High loadings (80 weight percent of the ceramifiale adhesive) of ceramifiable filler are attainable without loss of tack and green strength when the polydiorganosiloxane is a mixture of a low-viscosity fluid and a high-viscosity fluid. These ceramifiable silicone adhesives are useful for assembling and adhering a plurality of ceramifiable greenware components to form a ceramifiable composite greenware article.</p> |
