SE123721C1

SE123721C1 -

Info

Publication number: SE123721C1
Authority: SE
Publication date: 1948-01-01

Description

Uppfinnare: S. C. Johaasson. Inventor: S. C. Johaasson.

I den forstnamnda typen kunna med fordel en eller bada resp. flera eller alla av de sura grupperna vara neutraliserade av en envard metall, t. ex. alkalimetall, inklusive ammonium, eller tvh- eller flervardig metall. En sur grupp eller de sura grupperna kunna i stallet vara neutraliserade med organisk bas (amin) av ,alifatisk, alicyklisk eller aromatisk karaktar. In the former type, one can advantageously have one or both resp. several or all of the acidic groups be neutralized by a monovalent metal, e.g. alkali metal, including ammonium, or divalent or polyvalent metal. An acidic group or groups may be neutralized instead with an organic base (amine) of an aliphatic, alicyclic or aromatic character.

De i ansokningen avsedda korrosionshindrande foreningarna omfatta enbasiska och flerbasiska, mattade och omattade nitrofettsyror samt nitrooxifettsyror samt salter darav, varvid dessa foreningar kunna innehalla en, tvâ eller flera nitrogrupper. The anti-corrosion compounds contemplated in the application include monobasic and polybasic, saturated and unsaturated nitro fatty acids and nitrooxy fatty acids and salts thereof, these compounds being able to contain one, two or more nitro groups.

Som exempel p har avsedda fOreningar kunna anforas: a-nitropropionsyra, a-nitrooljesyra, 6-nitrooxistearinsyra, ao-dinitrooxistearinsyra, nitromalonsyra NO,GH(COOH),., nitrobarnstenssyra CH • NO,CH • (COOH),. Dessa syrors salter med metaller eller organiska baser verka korrosionshindrande aven vid stark utspadning i vattenlosning. Nitrostearinsyra-Li med en koncentration av 1: 200000 till 1: 600000 i vattenlosning verkar salunda korrosionshindrande pa jam och gal under avsevard tid. liven foreningar av den anforda typen R\ CH • NO, anvandas f5rdelaktigast i form av salter med en eller flera envarda metaller, t. ex alkalimetaller, inklusive ammonium, el- ler tva- eller flervarda metaller eller salter med organisk bas. Harvid kunna antingen karboxylgruppen eller -grupperna vara neutraliserade eller kan i stallet den sura NOsgruppen vara neutraliserad. Givetvis kunna bade karboxyl- och NO,-grupperna yarn neutraliserade. Examples which may be mentioned are the following compounds: α-nitropropionic acid, α-nitrooleic acid, 6-nitrooxystearic acid, α-dinitrooxystearic acid, nitromalonic acid NO, GH (COOH),., Nitro succinic acid CH • NO, CH • (COOH) ,. The salts of these acids with metals or organic bases have an anti-corrosion effect even when heavily diluted in aqueous solution. Nitrostearic acid-Li with a concentration of 1: 200000 to 1: 600000 in aqueous solution thus has an anti-corrosion effect on jam and gal for a considerable time. In the case of compounds of the required type R 1 CH • NO, it is most advantageously used in the form of salts with one or more monovalent metals, for example alkali metals, including ammonium, or divalent or polyvalent metals or salts with organic base. In this case, either the carboxyl group or groups can be neutralized or the acidic NOs group can be neutralized instead. Of course, both the carboxyl and NO 2 groups can be neutralized.

Som exempel pa en forening av den sistnamnda typen kan anforas a-nitro-p-fenylpropionsyra resp. salt darav. As an example of a compound of the latter type, α-nitro-p-phenylpropionic acid or salt darav.

De har avsedda foreningarna sattas till smorj olj an, bestrykningsmedlet, fargen eller desinfektionsmedlet antingen utan aft forst Visas i lOsningsmedel, eller sedan de Mists i lampligt lOsningsmedel sasom vatten eller en. alkohol eller annat organiskt losningsmedel The intended compounds are added to the lubricating oil, the coating, the paint or the disinfectant either without first appearing in the solvent, or since they are lost in a suitable solvent such as water or a. alcohol or other organic solvent

Claims

Patent claim:

1. Lubricants, coatings, disinfectants or the like, characterized in that, in addition to a lubricant, coating, disinfectant or the like, some of them contain a corrosion-preventing nitrophenic acid of the type R R1, NO, R, ROO, ROO, R, aro irate, carboxyl group or hydrocarbon radical, or of the R type, G11 NO, dam R and R, aro vale, al- 11,. / Cooling, aryl or alkyl-aryl group, in which later type R and / or R 1 contains at least one carboxyl group, the acidic groups being able to be completely or partially neutralized by means of metal, ammonium or organic base.

2. Lubricants, coatings, disinfectants or the like according to claim 1, characterized in that the anti-corrosion nitrophenic acid is constituted as a matt or unsaturated, mono- or polybasic nitro fatty acid or salt thereof.

A lubricant, coating, disinfectant or the like according to the patent language 1 or 2, characterized in that the anti-corrosion nitro compound is a nitrooxy fatty acid or salt a satlan. The invention relates to a lubricant, coating, disinfectant or the like and can be essentially characterized therefrom, in addition to a lubricant, coating, disinfectant or the like containing a corrosion-preventing nitro compound of the type R. • R, NO, 112 • GOOH, dar R, R, and R., aro vale, carboxyl group or carbonate residue, or of the type R \ Stockholm 1048. Kona Boktr. P. A. Norstedt & S6iier 480089