1. A composition for actively inhibiting corrosion, comprising:
at least one active corrosion inhibitor compound, and
at least one conventional corrosion inhibitor compound.
2. The composition of claim 1, comprising at least one solvent.
3. The composition of claim 1, wherein the at least one active corrosion inhibitor compound and the at least one conventional corrosion inhibitor compound are different chemical compounds.
4. The composition of claim 1, wherein the at least one active corrosion inhibitor compound comprises a derivative or salt of a thio-, thia- or dithiocarbamic acid, or a combination thereof.
5. The composition of claim 4, wherein the at least one active corrosion inhibitor compound comprises a soluble dithiocarbamate salt.
6. The composition of claim 5, wherein the at least one active corrosion inhibitor compound comprises an organic-soluble alkylammonium salt of a dithiocarbamate salt.
7. The composition of claim 4, wherein the at least one active corrosion inhibitor compound comprises a salt of a thiadiazole.
8. The composition of claim 5, wherein the at least one active corrosion inhibitor compound comprises a soluble thiadiazole salt.
9. The composition of claim 1, wherein the at least one active corrosion inhibitor compound comprises salts of dimethyldithiocarbamate (DMDTC), 2,5-dimercapto-1,3,4-thiadiazole (DMT) and pyrrolidinedithioacarbamate (PYRR) or a combination thereof.
10. The composition of claim 1, wherein the at least one active corrosion inhibitor is present in an amount less than about 20 weight percent.
11. The composition of claim 1, wherein the at least one active corrosion inhibitor is present in an amount less than about 5 weight percent.
12. A coating material comprising the composition of claim 1.
13. A coating material comprising the composition of claim 2.
14. The coating material of one of claims 12 or 13, wherein the material is paint, primer or a combination thereof.
15. A composite material, comprising:
a corrodable material, and
the composition of claim 1.
16. The composite material of claim 15, wherein the corrodable material comprises a metal, metal alloy or combination thereof.
17. A method of producing a composition that actively reduces corrosion, comprising:
providing at least one active corrosion inhibitor,
providing at least one conventional corrosion inhibitor compound or corrosion protection compound, and
blending the at least one active corrosion inhibitor and the at least one conventional corrosion inhibitor compound or corrosion protection compound to form the composition.
18. The method of claim 17, further comprising adding at least one solvent.
19. The method of claim 17, wherein the at least one active corrosion inhibitor compound and the at least one conventional corrosion inhibitor compound are different chemical compounds.
20. A composition for actively inhibiting corrosion, comprising:
at least one active corrosion inhibitor compound, wherein the at least one active corrosion inhibitor compound comprises a derivative or salt of a thio-, thia- or dithiocarbamic acid, or a combination thereof and
at least one conventional corrosion inhibitor compound.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A radio-based signal mail delivery system comprising a transmitter unit provided in connection with a mailbox or mail-slot flap (2; 22) and a receiver unit (5) for being located at a distance from the transmitter unit and being able to receive a radio signal emitted by the transmitter unit, said transmitter unit comprising a movement sensor for detecting movement of the mailbox or mail-slot flap (2; 22) and a transmitter with power supply and antenna (12; 24) for emitting a radio signal in response to movement of the mailbox or mail-slot flap (2; 22) wherein the transmitter unit is built into the mailbox or mail-slot flat (2; 22).
2. A mail delivery alarm system according to claim 1, wherein the antenna (12; 24) of the transmitter unit essentially follows the outer edge of the mailbox or mail-slot flap (2; 22).
3. A mail delivery alarm system according to claim 1, wherein the mailbox of mail-slot flap (2) comprises a front plate (13) and a rear plate (14), and that the transmitter unit is configured between the front plate (13) and the rear plate (14).
4. A mail delivery alarm system according to claim 3, wherein the front plate (13) as well as the rear plate (14) are manufactured from a plastics material.
5. A mail delivery alarm system according to claim 3, wherein the front plate (13) is made of metal, whereas the rear plate (14) is made of a plastics material.
6. A mail delivery alarm system according to claim 1, wherein the power supply of the transmitter unit comprises one or more batteries (15).
7. A mail delivery alarm system according to claim 1, wherein the power supply of the transmitter unit comprises photovoltaic cells (25) on or in the exterior surface of the mailbox or mail-slot flap (22).
8. A mail delivery alarm system according to claim 7, wherein the power supply further comprises one or more rechargeable batteries, and that the photovoltaic cells (25) are configured for recharging these batteries.