Use of block copolymers in adhesives
AssigneeEvonik Operations GmbH
InventorsNicolai Kolb, Gabriele Brenner, Patrick Glöckner, Bernhard Schleimer
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Abstract
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.
Claims13
An adhesive composition comprising block copolymers formed from OH-, or COOH-terminated polybutadiene and polyesters in adhesives or sealants, wherein the block copolymer is B(A)x block systems
- with A=polyester,
- with B═OH-, or COOH-terminated polybutadiene and
- with x≥1 wherein the adhesive composition contains at least one further polyol component, and
- wherein the functionality of the OH-terminated polybutadienes used is from 1 to 5.
An adhesive composition comprising block copolymers formed from OH-, or COOH-terminated polybutadiene and polyesters in adhesives or sealants, wherein the block copolymer is B(A)x block systems
- with A=polyester,
- with B═OH—, or COOH-terminated polybutadiene comprising the 1,3-butadiene-derived monomer units
- wherein the proportion of (I) in the entirety of the 1,3-butadiene-derived monomer units present in the polybutadiene is 10 to 60 mole percent, and wherein the sum total of the proportions of (II) and (III) in the entirety of the 1,3-butadiene-derived monomer units present in the polybutadiene is 40 to 90 mole percent, and
- with x≥1 wherein the adhesive composition contains at least one further polyol component.
Dependencies are inferred from the claim text.