Detergent compositions and processes incorporating n-(2-hydroxy hydrocarbyl)iminodicarboxylates

Abstract

Abstract BUILT SYNTHETIC ORGANIC DETERGENT COMPOSITIONS COMPRISE N-(2-HYDROXY HYDROCARBYL) IMINOCARBOXYLATES OR THE CORRESPONDING CARBOXYLIC ACIDS OF THE FORMULA: R1-CH(-OH)-CH2-N(-R2-COO-X)-R3-COO-Y WHEREIN R1 IS AN ALIPHATIC HYDROCARBON RADICAL OF 4 TO 20 CARBON ATOMS, R2 AND R3 ARE DIVALENT ALIPHATIC OR AROMATIC HYDROCARBON RADICALS OF 1 TO 9 CARBON ATOMS AND X AND Y ARE EITHER HYDROGEN OR SALT-FORMING ELEMENTS OR RADICALS. IN PREFERRED EMBODIMENTS OF THE INVENTION, R1 IS A SATURATED RADICAL OF 12 TO 20 CARBON ATOMS, R2 AND R3 ARE INENTICAL ALKYLENE RADICALS OF 1 TO 2 CARBON ATOMS, AND X AND Y ARE THE SAME MONOVALENT METALS, OR LOWER ALKANOLAMINES, E.G., SODIUM, TRIETHANOLAMINE. IN ADDITION TO THE IMINODICARBOXYLATES, SUCH COMPOSITIONS COMPRISE AN INORGANIC BUILDERS SALT, SUCH AS SODIUM TRIPOLYPHOSPHATE OR POTASSIUM PHYROPHOSPHATE, AND ALSO MAY INCLUDE OTHER ADJUVANT MATERIALS, SUCH AS TRISODIUM NITRILOTRACETATE, ENZYMES, ANTI-REDEPOSITION AGENTS, BLACHES OR BLUMAGENTS, GERMICIDES, HYDROTROPES, AUXILIARY DETERGENTS AND SOFTENING AGENTS, ETC. USUALLY, THE IMINODICARBOXYLATE COMPRISES FROM 3 TO 30% OF THE COMPOSITION AND THE INORGANIC BUILDER SALT IS FROM 10 TO 70% THEREOF. THE PRODUCTS MADE MAY BE IN LIQUID OR SOLID FORM AND ARE PREFERABLY EMPLOYED AS LIQUIDS OR POWDERS. THEY MAY BE UTILIZED AS WASHING-SOFTENING AGENTS IN LAUNDERING OR MAY BE EMPLOYED IN PRE-SOAKING OR AFTER-SOAKING OF LAUNDRY, TO IMPROVE THE SOFTENING OF THE WASHED MATERIAL. THE IMINODICARBOXYLATE CAN BE USED WITHOUR INORGANIC BUILDER SALT, IN WHICH CASE IS NORMALLY FUNCTIONS PRIMARILY AS A SOFTENING AGENT AND IS PREFERABLY UTILIZED IN THE RINSE WATER, AFTER COMPLETION OF WASHING, ALTHOUGH IT MAY ALSO BE USED ALONE IN A PRE-SOAKING OR WASHING OPERATIONS.

Inventors

• 👤 B Sundby
• 👤 E Kenney
• 👤 H Wixon

Bibliographic Details