Abrasion resistant coatings
AssigneeMinnesota Mining and Manufacturing Company
InventorJohn F. Kistner
Life of this patent
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Abstract
Abrasion resistant films formed by the copolymerization of epoxy-terminated silanes and an aliphatic monoepoxy resin display reduced odor and increased water-repellency.
Claims12
An abrasion-resistant, water-repellent film on a substrate, said film comprising the reaction product of a composition comprising:
- (1) more than 60% by weight of an epoxy-terminated silane,
- (2) 5 to 20% by weight of an aliphatic monoepoxide having between 8 and 20 carbon atoms in the aliphatic group, and
- (3) less than 10% by weight of a material copolymerizable with epoxy groups, other than the aliphatic monoepoxide.
A polymerizable liquid composition comprising at least 60% by weight of an epoxy-terminated silane, greater than 10% to 20% by weight of an aliphatic .alpha.-monoepoxide having 8 to 20 carbon atoms in the aliphatic group, less than 10% by weight of materials copolymerizable with epoxy groups other than the epoxy-terminated silane and the aliphatic epoxy resin, 1 to 10% by weight of a latent catalyst capable of curing both epoxy and silane groups, and 2 to 20% by weight of an ultraviolet radiation absorbing material.
A particulate-free polymerizable liquid composition consisting essentially of at least 60% by weight of an expoxy-terminated silane, greater than 10% to 20% by weight of an aliphatic .alpha.-monoepoxide having 8 to 20 carbon atoms in the aliphatic group, less than 10% by weight of materials copolymerizable with epoxy groups other than the epoxy-terminated silane and the aliphatic epoxy resin, 1 to 10% by weight of a latent catalyst capable of curing both epoxy and silane groups, and 2 to 20% by weight of an ultraviolet radiation absorbing material.
An abrasion-resistant, water-repellent film on a substrate, said film comprising the reaction product of a composition consisting essentially of
- (1) more than 60% by weight of an epoxy-terminated silane,
- (2) 5 to 20% by weight of an aliphatic monoepoxide having between 8 and 20 carbon atoms in the aliphatic group, and
- (3) less than 10% by weight of a material copolymerizable with epoxy groups, other than the aliphatic monoepoxide, said composition also containing as non-reactive components 3 to 10% by weight of ultraviolet radiation absorbers.
Dependencies are inferred from the claim text.