Wacker Chemie Ag

Michael Tobias Zarka

Florian Bauers

Abdulmajid Hashemzadeh

Karl Weber

Christian Hoegl

Claudius Schwarzwaelder

Heidemarie Schwarzwaelder

The invention relates to the use of vinyl acetate-copolymers as a shrinkage-reducing additive (low profile additive) in cold-curing systems for producing composite materials, characterized in that vinyl acetate-copolyerisate of 40 to 95 wt % vinyl acetate and 5 to 60 wt % of one or more co-monomers from the group containing vinyl esters of unbranched or branched carboxylic acids having 3 to 20 C-atoms and methacrylic acid esters and acrylic acid esters of unbranched or branched alcohols having 2 to 15 C-atoms are used, wherein the specifications in wt % relate to the total weight of the co-monomers and add up to 100 wt %.

Use of vinyl acetate-copolymers as a shrinkage-reducing additive in cold-curing systems

The invention relates to the use of polymers on the basis of renewable resources as LPA, characterized in that the polymers on the basis of renewable resources can be obtained by the radically initiated polymerization of one or more ethylenically unsaturated monomers in the presence of one or more renewable resources selected from the group consisting of carbohydrates and natural rubbers.

Low-profile additives on the basis of renewable resources

The invention provides graft copolymers obtainable by A) free-radically initiated polymerization of one or more vinyl esters a), one or more further ethylenically unsaturated monomers b) comprising at least one further functional group, B) subsequent polymer-analogous reaction of the copolymers from stage A) by joining the monomer units b) thereof to one or more further monomers b) such that at least one free-radically polymerizable group is introduced into the copolymers from stage A), characterized in that C) one or more ethylenically unsaturated monomers are polymerized onto the products from stage B) by free-radically initiated polymerization.

Graft copolymers and use thereof as low-profile additives

Hair care compositions contain from 0.1 to 12 weight percent of a silicone copolymer or saponification product thereof, prepared from silicones, at least 10% of which contain polymerizable groups, 0.5-14% of hydrophilic comonomers, and 30-99.9% of hydrophobic comonomers. The compositions exhibit good hair care properties.

Hair care composition

The invention relates to the use of protective-colloid-stabilized vinyl ester/ethylene copolymers in the form of polymer powder as low-profile-additives (LPAs).

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Burghausen, Germany

Michael Tobias Zarka