Abstract

There is provided a coating for corrosion protection of metal objects, said coating comprising at least one cerium oxide and at least one polypeptide, wherein the polypeptide comprises 29 or less amino acid residues wherein at least 15% of the number of amino acid residues are DOPA. Advantages include a fast establishment of the corrosion protective properties in an applied coating.

IPC Classes  ?

• C23C 22/62 - Treatment of iron or alloys based thereon
• C23C 22/68 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8

Abstract

There is provided a coating for corrosion protection of metal objects, said coating comprising at least one cerium oxide and at least one polypeptide, wherein the polypeptide comprises 29 or less amino acid residues wherein at least 15 % of the number of amino acid residues are DOPA. Advantages include a fast establishment of the corrosion protective properties in an applied coating.

IPC Classes  ?

• C09D 5/08 - Anti-corrosive paints
• C09D 7/65 - Additives macromolecular
• C23F 11/18 - Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
• B05D 7/14 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies

Abstract

A method for corrosion protection of metal objects comprises contacting the metal objects with a combination of at least one cerium oxide and at least one polymer comprising at least one mussel adhesive protein, and subsequently heating the coating to at least 60°C for at least 10 minutes. The material is environmentally friendly and does not show serious health risks as some compounds in the art. Only small amounts of coating material are required. The combination of mussel adhesive protein and small particles of cerium oxide gives the excellent corrosion protection in particular after heating. The combination of mussel adhesive protein, cerium oxide and phosphate ions gives a composition that is very suitable to cure with heating to give a further improved corrosion inhibiting coating which is better than that in the prior art.

IPC Classes  ?

• C09D 5/08 - Anti-corrosive paints
• C09D 189/00 - Coating compositions based on proteinsCoating compositions based on derivatives thereof

Abstract

A dried adhesive coating is manufactured by steps of: a) providing a composition comprising a solution of a polymer, wherein at least 1 wt% of said polymer based on the molecular weight Mw are catechol groups, and wherein the concentration of said polymer in said composition is from 0.1 to 250 mg/ml, b) adjusting the pH of the composition to a value from about ό to about 7, either (i) before applying the composition to the surface to be coated or (ii) after applying the composition to the surface to be coated, c) applying the composition to the surface to be coated to obtain an adhesive coating on at least a part of the surface, and d) drying the coating.

IPC Classes  ?

• C09J 189/00 - Adhesives based on proteinsAdhesives based on derivatives thereof
• A61L 27/00 - Materials for prostheses or for coating prostheses
• A61L 31/00 - Materials for other surgical articles
• C07K 14/435 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans

Abstract

A device and method for extracting a mussel foot from a mussel (2), wherein the device comprises a suction device adapted to create a suction pressure, the suction device having an end aperture (20a) arranged at a first end thereof, wherein the suction pressure of the suction device during operation erects the mussel foot from a mussel adjacent to the aperture and sucks the mussel foot through the end aperture of the suction device and wherein a cutting device (22a-f) is arranged adjacent the end aperture of the suction device.

IPC Classes  ?

• A22C 29/04 - Processing bivalves, e.g. oysters