Cognis IP Management Gmbh

Henkel Kommanditgesellschaft Auf Aktien

Basf Se Corporation

Uwe Held

Thomas Mausberg

Ronald Klagge

Thomas Schliwka

Katharina Hömberg

Rainer Hoefer

Markus Scherer

Adolf Asbeck

Dieter Feustel

Stefan Busch

Christian Hubert Weidl

Joachim Meyer

Karl Heinz Schmid

Bernd Wegemund

Karl-Heinz Schmid

Alfred Meffert

Robert Piorr

Marta Reinoso Garcia

Wolfgang Breuer

Shailesh C Shah

Thomas Engels

Horst-Dieter Schares

Linda Winkelmann

Thomas Koelen Van Der

Carsten Baumann

Sandra Heldt

Silke Annika Köhler

Andreas Willing

Bernd Schneider

Karolina Hofmann

Rolnald Klagge

The present invention relates to the use of reactive monomers as plasticizers in copolymers. The invention further relates to copolymers obtainable by using the reactive monomers. The present invention moreover relates to processes for the lowering of the glass transition temperature of copolymers with use of the reactive monomers.

Reactive monomers as comonomers for the production of polymers

Process for polymerizing at least one monomer under emulsion polymerization conditions, characterized in that the (co)monomers are selected from vinyl aromatic compounds, ethylenically unsaturated carboxylic acids with 3 to 10 carbon atoms, C-C-alkyl esters of ethylenically unsaturated carboxylic acids with 3 to 10 carbon atoms, 1,3-butadiene, and a-olefins bearing in the range of from 10 to 250 carbon atoms per molecule, in pure form or as mixture with isomers, and using a surfactant mixture comprising (A) an alkoxylation product of at least one alkanol (a), characterized in that alkanol (a) has 6 to 12 carbon atoms per molecule and the average number of alkylene oxide units per molecule in alkoxylation product (A) assumes a value in the range of from 35 to 55, the alkylene oxide units are selected from C-C-alkylene oxide units and alkanol (a) has an average degree of branching of at least 1; and (B) an alkoxylation product of at least one alkanol (b), characterized in that alkanol (b) has 13 to 19 carbon atoms per molecule and the average number of alkylene oxide units per molecule in alkoxylation product (B) assumes a value in the range of from 35 to 55, the alkylene oxide units are selected from C-C-alkylene oxide units, or (C) an alkoxylation product of at least one linear C-C-alkyl alcohol (c), characterized in that the average number of alkylene oxide units per molecule in alkoxylation product (C) assumes a value in the range of from 35 to 55, the alkylene oxide units are selected from C-C-alkylene oxide units.

Process for emulsion polymerization

The invention relates to the use of aqueous solutions of nonionic surfactants as gel phase free emulsion systems for emulsion polymerization. The nonionic surfactants are chosen from the group (a) of the addition products from 1 to 40 mol ethylene and/or propylene oxide per mol of allyl alcohol, and (b) of the addition products from 1 to 40 mol ethylene and/or propylene oxide per mol of allyl alcohol, wherein the OH-group of said addition products is end-capped in the sense that it is substituted by a group OR, wherein R is an alkyl group with 1 to 20 C-atoms, which can be saturated or unsaturated, straight chained or branched.

Use of nonionic surfactants as emulsifiers for emulsion polymerization (III)

The invention relates to a copolymerizable emulsifier comprising (meth)acrylic acid esters, selected from compounds of the general formula (1) and (II), where: A is an acrylic group having 3 to 40 carbon atoms, x and y independently of each other are a hydrogen group or a methyl group, B is hydrogen or a sulfate or phosphate group, and n a number in the range of 0 to 40. The invention further relates to methods of using said copolymerizable emulsifier in the emulsion polymerization of olefinically unsaturated monomers to prepare polymers.

Copolymerizable (meth)acrylic acid esters

Provided are low-viscosity aqueous compositions comprising compounds of Formula (III) and (IV). These compositions are prepared by jointly ethoxylating a mixture of the compounds of the Formula (I) and (II) to give an intermediate which represents a mixture of compounds of Formulas (I*) and (II*). The intermediate is then converted by sulfation or phosphation and subsequent neutralization, into an aqueous composition comprising the compounds of Formula (III) and (IV). The aqueous compositions are notable for having, at 20&#xb0; C., a Brookfield viscosity of 3000 mPas or less (measured at 20&#xb0; C. with spindle 2 and 20 rpm), and are suitable as emulsifiers for emulsion polymerization.

Low-viscosity aqueous compositions

The invention is directed to the use of maleic esters selected from compounds of formulae (I) and (II) as copolymerizable emulsifiers in the emulsion polymerization of olefinically unsaturated monomers, in which A is an alkyl group having 3 to 40 carbon atoms; X and Z independently are hydrogen or methyl; M is hydrogen, an alkali metal, alkaline earth metal, or an ammonium or other amine salt; and n and p independently are numbers in the range from 0 to 40. 

Copolymerizable surfactants (2)

The invention is directed to the use of maleic esters selected from compounds of formulae (I), (II) and (III), as copolymerizable emulsifiers in the emulsion polymerization of olefinically unsaturated monomers, in which A is a C3-C40 alkyl group; X, Y and Z independently are hydrogen or methyl; B and D independently are sulfate, phosphate or hydrogen; n and p independently are numbers in the range from 0 to 40; and m is a number in the range from 2 to 40. 

Copolymerizable surfactants (1)

Surfactant compositions which comprise (i) 10 to 90% by weight of one or more compounds selected from the group (a) to (e), and (ii) 10 to 90% by weight of water, based on the composition, are disclosed, where the compounds (a) to (e) are defined as follows: The surfactant compositions are liquid and pourable at 20&#xb0; C., with a pour point below 0&#xb0; C., and are useful as emulsifiers in emulsion polymerization.

Aqueous surfactant compositions with a low pour point

A salt of a mono- and/or dialkyl ester of a sulfonated dicarboxylic acid is provided, where the dicarboxylic acid contains 4 to 8 carbon atoms and the alkyl groups are derived from 2-propylheptanol. A composition including (a) one or more salt(s) of a mono- and/or dialkyl ester(s) of a sulfonated dicarboxylic acid(s), where the dicarboxylic acid contains 4 to 8 carbon atoms and the alkyl groups are derived from 2-propylheptanol; and (b) one or more organic solvents liquid at 20&#xb0; C. with a boiling point above 250&#xb0; C. at 1 bar is also provided.

Salts of alkyl esters of sulfonated dicarboxylic acids and compositions containing same

A process for making a biodegradable composition involving: (a) providing from about 20 to 80% by weight of Cfatty alcohol; (b) providing from about 20 to 80% by weight of a ring opening product of a C1,2-epoxyalkane with ethylene glycol; (c) combining (a) and (b) to form a reaction mixture; and (d) reacting the reaction mixture with ethylene oxide, with the proviso that the ethylene oxide is used in an amount of from about 5 to 100 mol ethylene oxide per mol of free OH groups present in the reaction mixture.

Biologically degradable compositions

Liquid formulations containing sulfosuccinic acid diester

Pourable liquid surfactant concentrate

Compounds corresponding to the following formula

Foam inhibitors for polymer dispersions

A foam inhibitor mixture of compounds corresponding to the following formulae: ##STR1## in which R represents a glycerol residue, trimethylol ethane residue, trimethylol propane residue or a polyglycerol residue having a degree of polymerization x of from 2 to 6 and the indices y=(x-z+2), z=(x-y+2), a=1 to 15, b=50 to 250, c=1 to 15, d=50 to 250 and e=1 to 15, with the proviso that the sums (a+c+e)=2 to 20, (b+d)=50 to 250 and (c+e)=1 to 15 and y has a value of at least 1; R.sup.1 represents a straight-chain or branched-chain alkyl or alkenyl radical containing from 8 to 20 C-atoms or an aromatic alkyl radical containing from 12 to 20 C-atoms, R.sup.2 represents an alkyl radical containing from 3 to 8 C-atoms and n is a number of from 4 to 30. The mixture preferably contains from 99 to 70% by weight of the block polymer (I) and from 1 to 30% by weight of the emulsifier (II).

Foam inhibitor mixture

A method for emulsifying, emulsion-stabilizing, and/or foam-inhibiting an aqueous polymer dispersion or latex by incorporating therein a polyglycol ether; and a polymer dispersion or latex composition containing such polyglycol ether.

Growing community of inventors

Velbert, Germany

Uwe Held