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US 12,054,644 B2Granted
Universal adhesion promoter based on organofunctional modified polybutadienes
AssigneeEvonik Operations GmbH
InventorsJana Blüm, Michael Fiedel, Annett Halbhuber, Stefanie Redeker, Frank Schubert, Sarah Otto
Life of this patent
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Abstract
A universal adhesion promoter contains a compound based on polybutadiene having at least one repeat unit selected from the following divalent radicals:
Claims20
A universal adhesion promoter, comprising:
- a compound based on a polybutadiene having at least one repeat unit selected from the group consisting of divalent radicals
- wherein
- A is in each case independently a monovalent organic radical or a hydrogen radical;
- B is in each case independently a radical of the formula (4a)
- R1 is in each case independently a monovalent hydrocarbon radical having 1 to 16 carbon atoms;
- R2 is a radical of the formula —CH2—O—R3;
- R3 is in each case independently a monovalent hydrocarbon radicals having 3 to 18 carbon atoms;
- R4 is in each case independently a monovalent organic radical having 1 to 18 carbon atoms or hydrogen;
- m, n, o, p and q are each independently 0 to 300, with the proviso that a sum total of m, n, o, p and q is greater than 1;
- and
- wherein B has at least one repeat unit in accordance with
- including every permutation of repeat units in B.
9 more elements
Dependencies are inferred from the claim text.