Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
  • A01N59/12—Iodine, e.g. iodophors; Compounds thereof
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent

Definitions

• This invention relates to improved detergent iodine compositions having germicidal properties, and to methods for preparing the same. More particularly, the invention relates to improved high acid detergent iodine compositions and methods for preparing the same, characterized in that products in commercially practical concentrate form, having low viscosity and capable of dilution with water in proportions to form stable consumer products and germicidal use dilutions, can be provided by forming a complex of iodine with a water soluble nonionic surface active agent in the presence of hydroxyacetic acid as the only or primary acidifying agent.
• hydroxyacetic acid provides a type of protection of the iodine against theeffect of organic soil, and the like, at use dilution comparable with the protection afforded by phosphoric acid, although its substantially higher cost makes it less attractive than phosphoric acid in the direct preparation of consumer products.
• hydroxyacetic acid has a surprising fluidizing elfect on normally viscous detergent iodine concentrates.
• detergent iodine concentrates containing an amount (x) of commercial hydroxyacetic acid are generally less viscous than similar concentrates in which said amount (x) of hydroxyacetic acid is replaced with Water.
• the fluidizing effect of the hydroxyacetic acid is so strong that it will under certain, and commercially practical conditions counteract the tendency of phosphoric acid to increase viscosity of the concentrates.
• hydroxyacetic acid is present in amounts greater than about one-half the detergent-iodine content, concentrates having satisfactory viscosity, i.e., below about 1000 centipoises, can be obtained with added amounts of phosphoric acid up to an amount approximately equivalent to the hydroxyacetic acid content.
• the amount of phosphoric acid to be included in conjunction with hydroxyacetic acid may be varied to meet the physical properties desired in a particular product.
• the amount of phosphoric acid included may be substantially less than an amount equivalent to the hydroxyacetic acid.
• the amount of phosphoric acid included may be substantially less than an amount equivalent to the hydroxyacetic acid.
• the ability to thus regulate the viscosity of an acidic detergentiodine concentrate by varying the relative amounts of hydroxyacetic and phosphoric acids, has very real and practical advantages in the preparation of concentrates which can be diluted with water to provide consumer products.
• the detergents to be used can be seand iodine complexing capacities and withlittle regard to viscosity of the detergent per se.
• Iodine which may be added as elemental iodine, or more suitably as an aqueous solution of iodine and HI as disclosed in United States Patent No.
• the total amount of acid tov be included in the concentrate may be varied considerably, depending upon the end use of consumer products to be prepared from the concentrate.
• the ratio of about 4:1 acid to available iodine will provide concentrate in which normal use dilutions, i.e., those containing about 5 to 25 -p.p.m. of available iodine will have a pH below about 4, assuming that the water used in preparing the use dilutions is not excessively alkaline.
• the ratio of acid to available iodine in the concentrate is advantageously increased to :1, :1, or even higher.
• the fluidizing effect of hydroxyacetic acid can be relied upon to permit substantial inclusion of phosphoric acid in the concentrate in the manner above described.
• Example A number of detergent-iodine and acidified detergent iodine concentrates were prepared having differing compositions as indicated in the following table. The procedures employed involved adding with stirring to a Weighed amount of deter-gent, a weighed amount of iodine solution which is a 57% w./ W. solution of iodine in aqueous hydriodic acid containing 24% HI, and continuing stirring until homogeneous. For acidified concentrates, the designated proportion by weight and-type of acid, or acid mixture, was then added with stirring until homogeneous. Each of the concentrates prepared was tested for viscosity, expressed in centipoises, as measured by the Brookfield Viscometer, at 27 C. i
• detergent being a nonyl phenol ethylene oxide condensate containing 10-11 mols of ethylene oxide per mol of nonyl phenol (Igepal CO-710)
• detergent B being a condensate of polypropylene oxide and ethylene oxide wherein the polypropylene oxide group has a molecular weight within the range of 1501 to 1800 and the condensate contains 20 to 30 percent of ethylene oxide (Pluronic 1,62)
• detergent C being a condensate similar to detergent B, but containing 50 to 60% ethylene oxide (Pluronic P-65).
• X represents the additive water or acid;
• H represents commercial 70% aqueous hydroxyacetic acid,
• P represents 70% aqueous phosphoric acid;
• H-l-P represents equal parts by weight of H and P;
• the method of introduction ofhavailable iodine has, little eifect on the final viscosity properties of the concentrate.
• the concentrates embraced in the foregoing tabulation were prepared supplying' the available iodine in the form of aqueousl-II/I solution.
• Other iodides such as the alkali metal iodides can be substituted for the HI in providingthe starting aqueous iodine solution.
• the older technique ofdissolving elemental iodine directly in the detergent can be employed without substantially modifying the viscosity characteristics of the various concentrates.
• the latter method of formulation has the disadvantage of producing a concentrate in which substantial amounts of the initially available iodine will. be consumed by interreaction with the detergent upon standing and/ or heating.
• the present invention is applicable to acidic-iodine con centrates generally, which contain water soluble nonionic surface active agents having detergent properties that are themselves'ei'lective iodine carrier's.
• water soluble nonionic surface active agents having detergent properties that are themselves'ei'lective iodine carrier's.
• tion there is presented in the following table comparative data with respect to several quite-different water soluble nonionic surface active agents.
• concentrates containing detergent iodine and either hydroxyacetic or phosphoric acid were prepared in accordance with the procedure pre: viously described, with the relative proportions of detergent iodine and acid being 1022114 as indicated for items f and h in Table I.
• the several detergents employed are identified as follows:
• detergent A in TABLE II Viscosity in Centipoises Detergent H l P
• Commercially practical concentrates in accordance with the present invention may contain about 3 to and preferably about 4 to 8% by weight of iodine (meaning available or titratable iodine), and the ratio of nonionic detergent to iodine may range from 4/1 to 20/1, and preferably about 5/1 to 10/1.
• the remainder of the concentrate is essentially made up of hydroxyacetic acid alone, or in combinaiton with phosphoric acid, with the relative proportion of phosphoric acid permissible being limited as herein described, to an amount which will not carry the viscosity of the concentrate higher than about 1000 centipoises.
• the ratio of hydroxyacetic acid to iodine should be in excess of about 2 to 1 with a preferred range being about 4 to 10 times the amount of available iodine. In instances when no phosphoric acid is employed, however, it is preferable to include an amount of hydroxyacetic acid in excess of about 5 times the amount of available iodine.
• the combined weight of available iodine, detergent and acid is equivalent to about 60% to 85% by weight of the concentrate; and it is to be understood that the term concentrate as used herein means a composition in which the active components thus constitute in excess of about 60% by weight of the composition.
• a liquid acidic detergent iodine concentrate consisting essentially of iodine, a water soluble ethoxylated nonionic surface active agent having detergent properties which is itself an effective iodine carrier, an acid selected from the group consisting of hydroxyacetic acid and mixtures of hydroxyacetic acid with up to an approximately equivalent amount by weight of phosphoric acid and water, wherein the amount of available iodine is about 3 to 10% by weight of said concentrate, the proportion of detergent to iodine is within the range of about 4/1 to 20/ 1, the amount of said acid provides a ratio of hydroxyacetic acid to iodine in excess of about 2 to 1, and sufficient to impart to said concentrate a viscosity below about 1000 centipoises, at 27 C., and the components of said concentrate exclusive of water constituting about to by weight of said concentrate.
• a liquid acidic detergent iodine concentrate consisting essentially of iodine, a water soluble ethoxylated nonionic surface active agent having detergent properties which is itself an effective iodine carrier, hydroxyaceitc acid and water, wherein the amount of available iodine is about 3 to 10% by weight of said concentrate, the proportion of detergent to iodine is within the range of about 4/1 to 20/1, the proportion of hydroxyacetic acid to iodine is in excess of about 5 to l, and suflicient to impart of said concentrate a viscosity below about 1000 centipoises, at 27 C., and the components of said concentrate exclusive of water constituting aobut 60 to 85% by weight of said concentrate.

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• Life Sciences & Earth Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Wood Science & Technology (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Organic Chemistry (AREA)
• Inorganic Chemistry (AREA)
• Agronomy & Crop Science (AREA)
• Pest Control & Pesticides (AREA)
• Plant Pathology (AREA)
• Health & Medical Sciences (AREA)
• Dentistry (AREA)
• General Health & Medical Sciences (AREA)
• Zoology (AREA)
• Environmental Sciences (AREA)
• Detergent Compositions (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

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Citations (5)

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• 0
  • BE BE630334D patent/BE630334A/xx unknown
  • NL NL290890D patent/NL290890A/xx unknown
• 1962
  • 1962-03-30 US US183713A patent/US3220951A/en not_active Expired - Lifetime
  • 1962-03-30 US US183740A patent/US3308014A/en not_active Expired - Lifetime
• 1963
  • 1963-03-25 CH CH377163A patent/CH486887A/de not_active IP Right Cessation
  • 1963-03-26 FR FR929169A patent/FR1351957A/fr not_active Expired
  • 1963-03-28 DK DK140563AA patent/DK107502C/da active
  • 1963-03-29 SE SE07810/69A patent/SE364310B/xx unknown
  • 1963-03-29 SE SE03498/63A patent/SE326248B/xx unknown
  • 1963-03-29 DE DEW34200A patent/DE1171112B/de active Pending
  • 1963-04-01 GB GB12887/63A patent/GB1034524A/en not_active Expired
  • 1963-04-01 GB GB8631/66A patent/GB1037950A/en not_active Expired
• 1964
  • 1964-12-31 OA OA51361A patent/OA01180A/xx unknown

Patent Citations (5)

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