Evonik Degussa Gmbh

Evonik Operations Gmbh

Evonik Roehm Gmbh

Evonik Rohm Gmbh

Gabriele Brenner

Bernhard Schleimer

Sven Balk

Thorsten Brand

Christina Cron

Gerd Loehden

Rene Koschabek

Nicolai Kolb

Emmanouil Spyrou

Cornelia Borgmann

Patrick Glöckner

Angela Köckritz

Marita Kaufmann

Thomas Arnold

Jens Deutsch

Cornelia Baumann

Axel Schroeder

Kerstin Fuchs

Christina Diehl

Georg Becker

Katja Neubauer

Gerd Löhden

Hartmut Alt

Birgit Drees

Benjamin Schäffner

Axel SCHRÖDER

René Koschabek

The present invention relates to a process for bonding substrates, wherein the bond is a bond that can be released by heat treatment at a temperature of 50° C. to less than 200° C. and a composition is used to produce the bond, said composition containing a polymer of formula (I): Q-(O—C(O)—CR′R″—C(O)—R), where: Q=a polymer group, selected from a polyester group and/or a polyolefin group, wherein the polymer group does not contain any components that result from the use of molecules having (meth)acrylic acid units as monomers; x is greater than or equal to 1; R═Ror O—R; R2=a hydrocarbon group, which can be substituted with halogen atoms, comprising 1 to 10 carbon atoms; R3=a hydrocarbon group, which can be substituted with halogen atoms, comprising 1 to 10 carbon atoms, or a polymer group; R′=—H, or a hydrocarbon group, which can be substituted with halogen atoms, comprising 1 to 10 carbon atoms, or a group of formula (II): —C(O)—NH-Q′, where Q′=an organic group which can also have one or more silicon atoms; and R″=—H or a group of formula (II), with the proviso that if neither of the groups R′ and R″ is a group of formula (II), then at least one of the groups R′ or R″ is —H.

Process for bonding substrates

The present invention relates to a composition comprising the reaction product of a block copolymer based on OH-functional polyolefin which is unhydrogenated, preferably polybutadiene, and cyclic esters in the form of a polyol having at least 1.8, preferably at least two, OH groups and at least one isocyanate compound having at least two isocyanate groups, which is notable in that the composition includes at least 0.0001% to 40% by weight of titanium and has a content of free isocyanate groups of at least 0.1% by weight based on the overall composition, to a process for preparation thereof and to the use of the composition for bonding of substrates.

Reactive adhesives based on block copolymers

The present invention relates to the use of block copolymers produced from OH-functionalized polyolefins and polyesters in adhesives or sealants and to adhesives or sealants containing said block co-polymers.

Use of block copolymers in adhesives

The invention relates to hotmelt adhesives based on polyesters, having low VOC and fogging values. In particular, the invention relates to reactive hotmelt adhesives including polyesters containing at least 50 mole percent, based on the polycarboxylic acid components, of terephthalic acid or a derivative thereof and containing at least 40 mole percent, based on the polyol components, of diols of the formula HO&#x2014;(CH)&#x2014;OH with x&#x2265;6.

Adhesives with low VOC and fogging values

The invention relates to hotmelt adhesives based on polyesters, having low VOC and fogging values. In particular, the invention is directed to a polyester based on polycarboxylic acids and di- or polyols, wherein the polyester including dicarboxylic acids of the formula HOOC&#x2014;(CH2)x-COOH with x&#x3e;10 and diols of the formula HO&#x2014;(CH2)y-OH, with the proviso that at least 50 mole percent of the dicarboxylic acids, based on the total amount of polycarboxylic acid components, and at least 50 mole percent of the diols, based on the total amount of di- or polyols, satisfy the condition x+y&#x3e;18, in hotmelt adhesives.

The present invention relates to an isocyanate-free and preferably solvent-free process for preparing polymers containing five-membered cyclic carbonate groups. In particular, the present invention is directed to a process for preparing polymers bearing cyclic carbonate groups by reacting carboxyl-bearing polymers selected from the group including polyesters based on di- or polyols and di- or polycarboxylic acids or derivatives thereof or poly(meth)acrylates, with hydroxyl-functionalized five-membered cyclic carbonates, without addition of isocyanates.

Isocyanate-free synthesis of carbonate-modified polymers

A two-pack polyurethane adhesive for semi-structural and structural adhesive bonds which are applied in melt form and have a high handling strength wherein the two-pack polyurethane adhesive includes a first pack A containing at least one polyester A1 which is solid at room temperature and at least one polyol A2 having a hydroxyl group functionality greater than 2.0, and a second pack B containing polyurethane prepolymers having isocyanate groups.

Two-component polyurethane hot-melt adhesive with high initial and final strength

The present invention relates to the use of polyesters with inherent flame retardancy as or in adhesives, sealants and coatings, to polyesters with inherent flame retardancy and to processes for production thereof.

Use of polyesters having inherent flame protection in adhesives and sealants

The present invention relates to a process for preparing poly(meth)acrylate-graft-polylactone polyols.

Process for preparing poly(meth)acrylate-graft-polylactone polymers

The present invention relates to polyurethane compositions containing uretdione groups that can be cured at a low temperature and are intended more particularly for polyurethane powder coating compositions and adhesive compositions, to a process for preparing them and to their use.

Dryblend process for preparing high-reactivity polyurethane compositions containing uretdione groups

The present invention relates to the use of mixtures comprising polymer types A, B and AB as or in adhesives, polymer type A being a copolyester prepared with cocondensation of unsaturated aliphatic dicarboxylic acids, polymer type B being a (meth)acrylate homopolymer and/or copolymer, and polymer type AB being a graft copolymer of polymer type A and polymer type B.

Adhesives based on polyester-graft-poly(meth)acrylate copolymers

A description is given of the preparation of high molecular mass, crystalline copolyesters with high solubility in non-halogenated and non-aromatic solvents, and of their use in adhesives.

Crystalline copolymers having high solubility in non-halogenated solvents, and their use

The invention relates to a heat-sealable coating system suitable for the sealing of various types of substrate and comprising a film-forming dispersion, characterized in that 

Heat-sealing material for aluminum foils and polyethylene terephthalate foils against polypropyl, polyvinyl chloride, and polystyrol containers

The present invention relates to a novel synthesis of (meth)acrylate-grafted polyesters and their action as compatibilizers.

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Duelmen, Germany

Gabriele Brenner