Primer for surfaces containing inorganic oxide
AssigneeMinnesota Mining and Manufacturing Company
InventorsZayn Bilkadi, Harald Guder
Life of this patent
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Abstract
A composition that is a primer or adhesive for adherence of overcoating functional layers to inorganic oxide-containing substrate, particularly silicon oxide-containing substrates is described. The composition is particularly useful for the adherence of a pavement marking tape to a pavement.
Claims20
A composite structure comprising a metal oxide-containing substrate, a dried intermediate layer formed from a primer/adhesive composition comprising
- (a) at least one thermoplastic elastomer that is soluble in proton accepting solvents,
- (b) at least one colloidal inorganic oxide, and
- (c) a solvent mixture comprising
- (1) at least one proton-accepting solvent, and
- (2) at least one hydroxyl group-containing solvent,
- and a layer overlaying and bonded to the intermediate layer.
A composite structure comprising a silicon dioxide-containing substrate, an intermediate layer of the dried product of a composition comprising
- (a) at least one thermoplastic elastomer that is soluble in proton accepting solvents,
- (b) at least one colloidal inorganic oxide, and
- (c) a solvent mixture comprising
- (1) at least one proton accepting solvent, and
- (2) at least one hydroxyl group-containing solvent, and a layer overlaying and bonded to the intermediate layer.
A composite structure comprising a metal oxide-containing substrate, an intermediate layer comprising the dried product of a composition comprising one part by weight of at least one particulate inorganic oxide having average particle sizes of less than 400 Angstroms of
- (a) from 0.5 to 10 parts of at least one thermoplastic elastomer which is soluble in a proton accepting solvent, and
- (b) a solvent mixture comprising at least one proton accepting solvent and at least one hydroxyl group-containing solvent, and a layer overlaying and bonded to the intermediate layer.
Dependencies are inferred from the claim text.