Back to results
US 9,850,386 B2Granted
Photo-curable coating composition and coated article
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsKoichi Higuchi, Yukimasa Aoki
Life of this patent
Estimating the term…
Abstract
A photo-curable coating composition comprising (1) a polyfunctional (meth)acrylic monomer, (2) a photopolymerization initiator, and (3) a specific hydroxyphenyltriazine base UV absorber has high mar resistance and long-term weather resistance.
Claims7
A coated article comprising a substrate which is coated with a photo-curable coating composition directly or via another layer,
- wherein the photo-curable coating composition comprises (1) a polyfunctional (meth)acrylic monomer, (2) a photopolymerization initiator, and (3) a hydroxyphenyltriazine base UV absorber having the general formula (1):
- wherein Y1 and Y2 are each independently a substituent having the general formula (2):
- wherein * designates a bonding site, r is 0 or 1, R1, R2 and R3 are each independently hydrogen, or hydroxyl, C1-C20 alkyl, C4-C12 cycloalkyl, C2-C20 alkenyl, C1-C20 alkoxy, C4-C12 cycloalkoxy, C2-C20 alkenyloxy, C7-C20 aralkyl, halogen, —C≡N, C1-C5 haloalkyl, —SO2R′, —SO3H, —SO3M wherein M is an alkali metal, —COOR′, —CONHR′, —CONR′R″, —OCOOR′, —OCOR′, —OCONHR′, (meth)acrylamino, (meth)acryloxy group, optionally substituted C6-C12 aryl or optionally substituted C3-C12 heteroaryl group, wherein R′ and R″ are independently hydrogen, C1-C20 alkyl, C4-C12 cycloalkyl, optionally substituted C6-C12 aryl or optionally substituted C3-C12 heteroaryl group,
- X is a divalent, straight or branched, saturated hydrocarbon residue which may be separated by at least one atom selected from oxygen, nitrogen, sulfur, and phosphorus,
- T is a urethane group:
- —O—(C═O)—NH—,
- Q is a divalent, straight or branched, saturated hydrocarbon residue which may be separated by at least one oxygen, and
- P is a (meth)acryloxy group.
5 more elements
Dependencies are inferred from the claim text.