Silicone elastomers bonded to solid substrates |
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| 申请号 | US40368573 | 申请日 | 1973-10-04 | 公开(公告)号 | US3889023A | 公开(公告)日 | 1975-06-10 |
| 申请人 | DOW CORNING; | 发明人 | PLUEDDEMANN EDWIN P; | ||||
| 摘要 | Composite articles in which silicone rubber is bonded to a solid substrate exhibit improved rubber adhesion when small amounts of diallylphthalate are added to the silicone rubber prior to curing the rubber while in contact with the substrate. | ||||||
| 权利要求 | 1. A COMPOSITE ARTICLE COMPRISING A SOLID SUBSTRATE HAVING BONDED THERETO A CURED SILICONE RUBBER COMPOSITION COMPRISING (A) 100 PARTS BY WEIGHT OF A MXTURE CONSISTING ESSENTIALLY OF AN ORGANOPOLYSILOXANE GUM OF THE UNIT FORMULA RNSIO(4-N)/2 IN WHICH R IS SELECTED FROM THE GROUP CONSISTING OF METHYL, VINYL, PHENYL AND 3,3,3-TRIFLUOROPROPYL RADICALS AND N HAS AN AVERAGE VALUE OF FROM 1.98 TO 2.01 INCLUSIVE, A REINFORCING SILICA AND AN ORGANOPEROXIDE VULCANIZING AGENT; AND (B) FROM ABOUT 2 TO 10 PARTS BY WEIGHT OF DIALLYLPHTHALATE. 2. A composite article in accordance with claim 1 wherein said cured rubber composition includes from 0.25 to 2.5 parts by weight of R''(OR'''')3 in which R'' is a vinyl or alkyl radical and R'''' is a lower alkyl radical containing from 1 to 4 inclusive carbon atoms. 3. A composite article in accordance with claim 1 wherein the substrate is metal. 4. A composite article in accordance with claim 1 wherein the substrate is glass. 5. A composite article in accordance with claim 1 wherein the substrate is a synthetic polymeric material. |
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