Di-.alpha.-cyanopentadienoate disiloxane compounds for use in adhesives
申请人:Loctite Corporation
公开号:US05386047A1
公开(公告)日:1995-01-31
Anionically polymerizable di-.alpha.-cyanopentadienoate disiloxane compounds of the formula: [CH.sub.2 .dbd.CH--CH.dbd.C(CN)--C(.dbd.O)--O--CH.sub.2 --R--Si(R").sub.2 ].sub.2 --O where R is --CH.dbd.CH-- or --C(.dbd.CH.sub.2)-- and the R" groups are the same or different hydrocarbon or halo substituted hydrocarbon groups are prepared by hydrolysis of a cyanoacetoxypropenylsilane having a hydrolyzable group attached to the silicon atom and then condensing the resulting disiloxane compound with acrolein. The di-.alpha.-cyanopentadienoate disiloxane compounds are useful as instant adhesives and as co-monomers in cyanoacrylate or cyanopentadienoate instant adhesives, providing the adhesive polymers or copolymers with improved thermal resistance.