Evonik Operations Gmbh

Evonik Degussa Gmbh

Nicolai Kolb

Gabriele Brenner

Bernhard Schleimer

Patrick Glöckner

Juergen Steiger

Michael Neusius

Stefan Hilf

Kai-Steffen Krannig

Niko Haberkorn

Stefan Karl Maier

Laura Ramon-Gimenez

Hsin-Ho Wu

Tung-Yi Sun

Denise Bingel

Katrin SCHÖLLER

Carmen Zamponi

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 invention is related to a composition for use in hydraulic systems of an aircraft. The composition typically comprises an adipic acid-based polyester in a phosphate ester base stock substantially consisting of trialkyl phosphates.

Use of polyesters as viscosity index improvers for aircraft hydraulic fluids

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 present invention relates to the use of block copolymers based on OH-, COOH- or amino-functionalized polyolefins and polyesters as binders in coating compositions, preferably paints, especially for improving the adhesion of coatings, especially coil coatings on metals, and to coating compositions comprising the block copolymers mentioned.

Use of block copolymers in coatings

The present invention relates to an optical clear resin and a method for producing a liquid optical clear photo-curable adhesive.

Acrylate-terminated urethane polybutadienes from low-monomer 1:1 monoadducts from reactive olefinic compounds and diisocyanates and hydroxy-terminated polybutadienes for liquid optically clear adhesives (LOCAs)

Growing community of inventors

Recklinghausen, Germany

Nicolai Kolb