POLYIMINO ORGANOSILICON COMPOUNDS
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Abstract
ORGANOSILICON COMPOUNDS HAVING THE SUBSTITUENT GROUP
*SI-R-NH-(R1-NH)N-H
WHERE N IS AT LEAST 14, ARE MADE BY REACTING $SIRCI WITH
H-(NH-R1)N-NH2
FOR EXAMPLE,
(CH3-O-)3-SI-(CH2)3-CL + H-(NH-CH2-CH2)30-NH2 -->
(CH3-O-)3-SI-(CH2)3-NH-(CH2-CH2-NH)30-H . HCL
THE ORGANOSILICON COMPOUNDS INCREASE THE ADHESION OF POLYPROPYLENE AND OTHER PLASTICS TO GLASS AND GLASS FIBERS. ORGANOSILICON COMPOUNDS HAVING AMINO SUBSTITUENTS ON CARBON SIDE CHANS HAVE OBTAINED CONSIDERABLE COMMERCIAL SUCCESS. THESE INCLUDE SILANES HAVING THE AMINOPROPYL GROUP SUBSTITUTED ON SILICON AS WELL AS THOSE HAVING THE AMINOETHYLAMINOPROPYL GROUP. SUCH SILANES HAVE BEEN EMPLOYED IN MANY APPLICATIONS, INCLUDING THOSE RELATING TO THE PRIMING OF SURFACES TO INCREASE THE RECEPTIVITY OF DYES AND OF ORGANIC PLASTICS. U.S. PATS. 3,249,535 AND 3,317,577 SHOW ORGANOSILICON COMPOUNDS HAVING POLYIMINE GROUPS ATTACHED TO THE SILICON IN WHICH THE NUMBER OF IMINE UNITS RANGE UP TO ABOUT 10. IT HAS BEEN FOUND THAT THE COMPOSITIONS CLAIMED HEREIN GIVE IMPROVED ADHESION OF CERTAIN PLASTICE TO GLASS AND ARE IN OTHER WAYS SUPERIOR TO HERETOFORE KNOWN AMINOSILICON COMPLOUNDS AND THE HERETOFORE KNOWN POLYIMINO SILICON COMPOUNDS.
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