Adhesion promoters and their use
The present disclosure relates, in exemplary embodiments, to coating compositions comprising adhesion promoters and articles comprising the same.
1. A coated substrate comprising:
a) a substrate;
b) a coating composition on the substrate, the coating composition comprising one or more organosilane polymers that have a linear or branched chain structure; and
c) a topcoat composition on the coating composition,
wherein the one or more organosilane polymers comprise units of Formula (I) and Formula (I′):
wherein in Formula (I) and Formula (I′): each R is the same or different and is a hydrogen or non-hydrogen substituent; each L 1 is the same or different and is a substituted or unsubstituted C 1 -C 20 alkylene, or substituted or unsubstituted C 2 -C 20 heteroalkylene; and y and z are the same or different and each is a positive integer,
wherein the one or more organosilane polymers have a weight average molecular weight of about 1000 g/mol or greater.
2. The coated substrate of claim 1 wherein the one or more organosilane polymers have a weight average molecular weight of about 4000 g/mol or greater.
3. The coated substrate of claim 1 wherein the one or more organosilane polymers comprise units of Formula (IA):
wherein in Formula (IA): each R is the same or different and is a hydrogen or non-hydrogen substituent; L 2 is a substituted or unsubstituted C 1 -C 20 alkylene, or substituted or unsubstituted C 2 -C 20 heteroalkylene; and y is a positive integer.
4. The coated substrate of claim 1 wherein the one or more organosilane polymers comprise units of Formula (IB):
wherein in Formula (IB): each R is the same or different and is a hydrogen or non-hydrogen substituent; and y is a positive integer.
5. The coated substrate of claim 1 wherein the one or more organosilane polymers comprise units of Formula (II):
wherein in Formula (II): each R is the same or different and is a hydrogen or non-hydrogen substituent; L 1 is a substituted or unsubstituted C 1 -C 20 alkylene, or substituted or unsubstituted C 2 -C 20 heteroalkylene; and y is a positive integer.
6. The coated substrate of claim 1 wherein the one or more organosilane polymers comprise units of Formula (IIA):
wherein in Formula (IIA): each R is the same or different and is a hydrogen or non-hydrogen substituent; each X and X′ is the same or different and is hydrogen or a non-hydrogen substituent; each x is the same or different positive integer from 1 to 20; and y and z are each the same or different positive integer.
7. The coated substrate of claim 1 wherein the one or more organosilane polymers comprise units of Formula (IIB):
wherein in Formula (IIB): each R is the same or different and is a hydrogen or non-hydrogen substituent; each x is the same or different positive integer from 1 to 20; and y and z are each the same or different positive integer.
8. The coated substrate of claim 1 , wherein each R is other than hydrogen.
9. The coated substrate of claim 1 wherein the top coat composition comprises a reactive component comprising a hydroxyl acrylate compound.