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US 9,028,969 B2Granted
Composite article having protective coating
AssigneeUnited Technologies Corporation
InventorWayde R. Schmidt
Life of this patent
Estimating the term…
Abstract
A composite article includes a substrate and a protective coating on at least a portion of the substrate. The protective coating includes reinforcement particles dispersed within an elastomeric matrix that is modified with a silicon-containing modifier selected from polysilsesquioxane, polyhedral oligomeric silicate and polyhedral oligomeric silsesquioxane (POSS).
Claims23
A composite article comprising:
- a substrate;
- and
- a protective coating on at least a portion of the substrate, the protective coating comprising reinforcement particles dispersed within an elastomeric matrix that is modified with a polyhedral oligomeric silsesquioxane (POSS) selected from the group consisting of trisnorbornenylisobutyl-POSS, trisilanolisooctyl-POSS, trisilanolphenyl-POSS, trisilanolisobutyl-POSS, trisilanolcyclopentyl-POSS, trisilanolcyclohexyl-POSS, vinyl-containing-POSS and combinations thereof, wherein the protective coating is multi-layered and includes a first layer having a first composition, and a second layer having a second, different composition and that is arranged adjacent to the first layer such that both the first layer and the second layer have an environmentally exposed outer surface and an opposed inner surface in direct contact with the substrate, and wherein the first composition is selected with respect to resisting erosion at a first angle of incidence and the second composition is selected with respect to resisting erosion at a second, different angle of incidence.
A composite article comprising:
- an airfoil having a body that extends between a leading edge and a trailing edge;
- and
- a protective coating on at least a portion of the leading edge, the protective coating comprising silicone microsphere reinforcement particles dispersed within a silicone elastomer matrix that is modified with polyhedral oligomeric silsesquioxane (POSS) selected from the group consisting of trisnorbornenylisobutyl-POSS, trisilanolisooctyl-POSS, trisilanolphenyl-POSS, trisilanolisobutyl-POSS, trisilanolcyclopentyl-POSS, trisilanolcyclohexyl-POSS, vinyl-containing-POSS and combinations thereof, wherein the protective coating is multi-layered and includes a first layer having a first composition, and a second layer having a second, different composition and that is arranged adjacent to the first layer such that both the first layer and the second layer have an environmentally exposed outer surface and an opposed inner surface in direct contact with the body, wherein the first composition is selected with respect to resisting erosion at a first angle of incidence and the second composition is selected with respect to resisting erosion at a second, different angle of incidence.
A composite article comprising
- a substrate;
- and
- a protective coating on at least a portion of the substrate, the protective coating comprising reinforcement particles dispersed within an elastomeric matrix that is modified with a polyhedral oligomeric silsesquioxane (POSS) selected from the group consisting of trisnorbornenylisobutyl-POSS, trisilanolisooctyl-POSS, trisilanolphenyl-POSS, trisilanolisobutyl-POSS, trisilanolcyclopentyl-POSS, trisilanolcyclohexyl-POSS, vinyl-containing-POSS and combinations thereof, wherein the protective coating is multi-layered and includes a first layer having a first composition, and a second layer having a second, different composition and that is arranged adjacent to the first layer such that both the first layer and the second layer have an environmentally exposed outer surface and an opposed inner surface in direct contact with the substrate, wherein the first composition is selected with respect to erosion resistance and the second composition is selected with respect to anti-icing.
Dependencies are inferred from the claim text.