Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...
Reexamination Certificate
2008-01-22
2008-01-22
Peng, Kuo-Liang (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From silicon reactant having at least one...
C427S387000, C524S837000, C525S474000
Reexamination Certificate
active
07321019
ABSTRACT:
Aqueous dispersions containing organopolysiloxane/polyurea copolymers prepared by reacting aminoalkyl-functional organopolysiloxanes with a diisocyanate in water in the presence of a protonating acid, and optionally one or more surfactants and/or protective colloids. The organopolysiloxane/polyurea polymers may be prepared without the presence of ionic groups if desired.
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Derwent Abstract corresponding to DE 1 184 946.
Derwent Abstract corresponding to DE 1 178 586.
Derwent Abstract corresponding to DE 14 95 745.
Derwent Abstract corresponding to DE 20 19 324.
Derwent Abstract corresponding to DE 28 07 861.
Derwent Abstract corresponding to DE 17 70 068.
Derwent Abstract corresponding to DE 24 46 440.
Derwent Abstract corresponding to DE 199 58 525.
Derwent Abstract corresponding to DE 44 13 562.
Derwent Abstract corresponding to DE 1 946 942.
Derwent Abstract corresponding to EP 1 201 699.
Brooks & Kushman P.C.
Peng Kuo-Liang
Wacker Chemie AG
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