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US 2026/0193485 A1Published application
Silicone urethane (meth)acrylates and their use in coating compositions
AssigneeEvonik Operations GmbH
InventorsFrauke Henning, Sadik Amajjahe, Christian Eger, Irem Karabulut, Dirk Alexander Schramm
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Abstract
A composition has silicone urethane (meth)acrylates having at least three (meth)acrylate groups and not more urethane groups than (meth)acrylate groups, as well as optionally at least one curing catalyst, at least one additive, and at least one solvent. A method prepares said composition, and release coatings, protective films, and protective coatings can be obtained by curing said compositions.
Claims12
A composition, comprising:
- (a) at least one silicone urethane (meth)acrylate having
- at least three (meth)acrylate groups, and
- not more urethane groups than (meth)acrylate groups;
- (b) at least one organic (meth)acrylate not having any silicon atoms;
- (c) at least one silicone (meth)acrylate not having any urethane groups;
- (d) optionally at least one curing catalyst;
- (e) optionally at least one additive;
- (f) optionally at least one solvent;
- wherein:
- from 20 to 70% by weight of component (a);
- from 20 to 80% by weight of component (b);
- from 1 to 60% by weight at least of component (c);
- from 0 to 5% by weight of component (d);
- from 0 to 20% by weight of component (e);
- from 0 to 10% by weight of component (f);
- are contained based on a total weight of a sum of components (a) to (f) and/or based on a total weight of the composition.
13 more elements
Dependencies are inferred from the claim text.