Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2005-07-12
2005-07-12
Egwim, Kelechi C. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C493S428000, C493S428000
Reexamination Certificate
active
06916878
ABSTRACT:
Aqueous dispersions entirely or substantially free from volatile organic compounds, comprising(A) at least one block copolymer preparable by two-stage or multistage free-radical copolymerization in an aqueous medium ofa) at least one olefinically unsaturated monomer selected from the group consisting of hydrophilic and hydrophobic olefinically unsaturated monomers, andb) at least one olefinically unsaturated monomer different than the olefinically unsaturated monomer (a) and of the general formula Iin-line-formulae description="In-line Formulae" end="lead"?R1R2C═CR3R4 (I)in-line-formulae description="In-line Formulae" end="tail"?in which the radicals R1, R2, R3and R4each independently of one another are hydrogen atoms or substituted or unsubstituted alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl, arylalkyl or arylcycloalkyl radicals, with the proviso that at least two of the variables R1, R2, R3and R4are substituted or unsubstituted aryl, arylalkyl or arylcycloalkyl radicals, especially substituted or unsubstituted aryl radicals;and(B) hydrophilic nanoparticles; processes for preparing them, and their use as or to prepare coating materials, adhesives, and sealing compounds.
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Machine Translation of JP10-158345, Publication Date Jun. 16, 1998 from JPO.
Bremser Wolfgang
Steiner Hans-Peter
Strickmann Frank
BASF Coatings AG
Egwim Kelechi C.
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