Abstract: This invention concerns gradient copolymers, that are obtainable by polymerizing a mixture of olefinically unsaturated monomers that consist of
a) 0 to 40% by weight of one or more ethylenically unsaturated ester compounds of formula (I)
where R is hydrogen or methyl, R1 means a linear or branched alkyl residue with 1 to 5 carbon atoms, R2 and R3 independently represent hydrogen or a group of the formula —COOR′, where R′ means hydrogen or an alkyl group with 1 to 5 carbon atoms,
b) 10 to 98% by weight of one or more ethylenically unsaturated ester compounds of formula (II)
where R is hydrogen or methyl, R4 means a linear or branched alkyl residue with 6 to 15 carbon atoms, R5 and R6 independently are hydrogen or a group of the formula —COOR″, where R″ means hydrogen or an alkyl group with 6 to 15 carbon atoms,
c) 0 to 80% by weight of one or more ethylenically unsaturated ester compounds of formula (III)
where R is hy
Type:
Grant
Filed:
November 30, 1999
Date of Patent:
June 11, 2002
Assignee:
RohMax Additives GmbH
Inventors:
Markus Scherer, Joseph Martin Bollinger, Joan Souchik
Abstract: This invention concerns a method for preparation of poly(meth)acrylate composition, in which ethylenically unsaturated monomers are polymerized by means of initiators that have a transferable atomic group, and one or more catalysts that include at least one transition metal, in the presence of ligands that can form a coordination compound with the metallic catalyst(s) to form polymers, where ethylenically unsaturated monomers that contain 50-100 wt %, with respect to the total weight of the ethylenically unsaturated monomers, (meth)acrylates of formula (I)
where R means hydrogen or methyl, R1 means a linear or branched alkyl residue with 6-40 carbon atoms, R2 and R3 independently mean hydrogen or a group of the formula—COOR′, where R′ is hydrogen or a linear or branched alkyl residue with 6-40 carbon atoms, is polymerized in the presence of 5-95 wt % mineral oil, with respect to the total weight of the composition.
Type:
Grant
Filed:
November 30, 1999
Date of Patent:
June 11, 2002
Assignee:
RohMax Additives GmbH
Inventors:
Sebastian Roos, Joseph Martin Bollinger, Markus Scherer, Boris Eisenberg
Abstract: This invention concerns copolymers, which are obtainable by ATRP methods, where a mixture of ethylenically unsaturated monomers consisting of
a) 0 to 40% by weight of one or more ethylenically unsaturated ester compounds of formula (I)
where R is hydrogen or methyl, R1 means a linear or branched alkyl residue with 1 to 5 carbon atoms, R2 and R3 independently represent hydrogen or a group of the formula —COOR′, where R′ means hydrogen or an alkyl group with 1 to 5 carbon atoms,
b) 10 to 98% by weight of one or more ethylenically unsaturated ester compounds of formula (II)
where R is hydrogen or methyl, R4 means a linear or branched alkyl residue with 6 to 15 carbon atoms, R5 and R6 independently are hydrogen or a group of the formula —COOR″, where R″ means hydrogen or an alkyl group with 6 to 15 carbon atoms,
c) 0 to 80% by weight of one or more ethylenically unsaturated ester compounds of formula (III)
where R is hydr
Abstract: The invention concerns a method for preparation of a liquid polymer composition, where ethylenically unsaturated monomers are polymerized by means of initiators that have a transferable atomic group, and one or more catalysts that contain at least one transition metal, in the presence of ligands that can form a coordination compound with the metallic catalysts, the catalyst is oxidized after the polymerization and then the catalyst is separated by filtration, where the composition contains a solvent with a dielectric constant less than or equal to 4.
Type:
Grant
Filed:
November 30, 1999
Date of Patent:
February 19, 2002
Assignee:
RohMax Additives GmbH
Inventors:
Sebastian Roos, Boris Eisenberg, Michael Mueller