Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing
Reexamination Certificate
2011-03-29
2011-03-29
Gulakowski, Randy (Department: 1766)
Organic compounds -- part of the class 532-570 series
Organic compounds
Silicon containing
C525S474000, C525S476000, C528S030000, C528S033000
Reexamination Certificate
active
07915436
ABSTRACT:
A phosphorus-containing silsesquioxane is represented by the formulain-line-formulae description="In-line Formulae" end="lead"?[R13SiO1/2]m[R2SiO3/2]n[R3SiO3/2]p[(R4O)2PO(CH2)xSiO3/2]qin-line-formulae description="In-line Formulae" end="tail"?wherein each of R1, R2, R3, and R4independently represents a hydrocarbyl group; x represents an integer of from 1 to 8; m is a positive number less than 1.5; n and q are positive numbers greater than 0 and less than 1; and p is a number greater than or equal to 0 and less than 1. Further, (n+p)/q is in a range of from 0.5 to 99, and (n+p+q)=1. Curable and cured compositions comprising the phosphorus-containing silsesquioxane are disclosed.
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Lim Lisa S.
Pyun Eumi
Rule Joseph D.
3M Innovative Properties Company
Gulakowski Randy
Loewe Robert
Wright Bradford B.
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