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
  • C11D3/16—Organic compounds
  • C11D3/37—Polymers
  • C11D3/3792—Amine oxide containing polymers
• • 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
  • C11D1/38—Cationic compounds
  • C11D1/62—Quaternary ammonium compounds
• • 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
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/0021—Dye-stain or dye-transfer inhibiting compositions
• • 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
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/0036—Soil deposition preventing compositions; Antiredeposition agents
• • 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
  • C11D3/16—Organic compounds
  • C11D3/37—Polymers
  • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/3715—Polyesters or polycarbonates
• • 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
  • C11D3/16—Organic compounds
  • C11D3/37—Polymers
  • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/3719—Polyamides or polyimides
• • 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
  • C11D3/16—Organic compounds
  • C11D3/37—Polymers
  • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/3723—Polyamines or polyalkyleneimines

Definitions

• the present invention relates to fabric treatment compositions comprising modified polyamines and to methods for treating fabric for removal of proteinaceous and greasy stains.
• the fabric treatment compositions can comprise other adjunct ingredients such as fabric conditioning compounds, bleaches, and perfumes.
• the fabric treatment compositions are effective on cotton as well as cotton blends and polyester.
• Formulators of fabric softeners have long faced the problem of odor formation in the laundry liquor and the automatic clothes dryer.
• One cause of these malodors is the possible break down of quaternary ammonium softening agents whrein volatile aldehydes are formed. It has been su ⁇ rizingly found that the addition of the polyamines of the present invention to pre-wash, laundry, and laundry rinse formulations decreases the presence of malodor compounds, possibly by chemical reaction of the nitrogen moieties of the polyamines with the aldehydes.
• modified polyamines of the present invention used in the absence of detersive surfactants provide for enhanced removal of grass stains from all types of fabric.
• This nil surfactant formulation allows for other fabric treatment adjuncts such as softeners, anti-static agents, bleaches, and perfumes, singly or as an admixture, to be effectively combined with the modified polyamines.
• a further pu ⁇ ose is to provide a method of inhibiting or reducing fabric discoloration which comprises the steps of rinsing a fabric with a fabric softener composition comprising a fabric softener component and a modified poly amine of the present invention.
• the present invention relates to laundry pre-soak, pre-treatment or rinse added compositions that modify the surface of fabric to facilitate the removal of oily/ greasy dirt, lipophilic grime, and proteinaceous soils.
• the present invention compositions are used to treat fabrics in the presence or the absense of detersive surfactants.
• the fabric treatment compositions comprise: a) an effective amount of a fabric conditioning agent; b) an effective amount of a water-soluble or dispersible, bleach stable, modified polyamine fabric surface modifier comprising a polyamine backbone corresponding to the formula: r 1 I
• W units are backbone units having the formula:
• Y units are branching units having the formula:
• Z units are terminal units having the formula: wherein backbone linking R units are selected from the group consisting of C2-C12 alkylene, C4-C12 alkenylene, C3-C12 hydroxyalkylene, C4-C]2 dihydroxy-alkylene, C 8 -C 12 dialkylarylene, -(R ⁇ R*-, -(RlO ⁇ R ⁇ OR 1 ⁇ -' -(CH 2 CH(OR2)CH 2 O) z - (R 1 O) y R 1 (OCH 2 CH(OR2)CH2) w -, -C(O)(R 4 ) r C(O)-, -CH 2 CH(OR2)CH 2 -, and mixtures thereof; wherein Rl is C2-C6 alkylene and mixtures thereof; R2 is hydrogen, - (R O ⁇ B, and mixtures thereof; R 3 is Cj-Cig alkyl, C7-C12 arylalkyl, C7-C12 alkyl substituted
• R ⁇ is C2-C12 alkylene or C6-C12 arylene
• E units are selected from the group consisting of hydrogen, C1-C22 alkyl, C3-C22 alkenyl, C7-C22 arylalkyl, C1-C22 hydroxyalkyl, -(CH 2 ) p CO 2 M, -(CH 2 )qSO 3 M, -CH(CH2CO 2 M)CO 2 M, -(CH 2 ) p PO 3 M, -(R O) x B, -C(O)R 3 , and mixtures thereof; provided that when any E unit of a nitrogen is a hydrogen, said nitrogen is not also an N-oxide; B is hydrogen, C ⁇ -Cg alkyl, - (CH 2 ) q SO 3 M, -(CH 2
• Is is yet a further object of the present invention to provide methods for treating fabrics to remove greasy/oily dirt, lipophilic grime, and proteinaceous soils and to provide methods for pre-treating fabrics with compositions of the present invention to enhance the removal of greasy/oily dirt, lipophilic grime, and proteinaceous soils.
• All percentages, ratios and proportions herein are by weight, unless otherwise specified. All temperatures are in degrees Celsius (° C) unless otherwise specified. All documents cited are in relevant part, inco ⁇ orated herein by reference.
• Fabric surface modification compositions according to the present invention for treatment of proteinaceous soils comprise: a) from about 0.01 % by weight, of a water-soluble or dispersible, bleach stable, modified polyamine fabric surface modifier according to the present invention; b) from about 0.01% by weight, of a fabric conditioning agent; and c) the balance carrier and adjunct ingredients.
• Further preferred fabric surface modification compositions for treatment of proteinaceous soils comprise: a) from about 0.01% by weight, of a water-soluble or dispersible, bleach stable, modified polyamine fabric surface modifier according to the present invention; b) from about 0.01% by weight, of a fabric conditioning agent; c) from about 0.01% by weight, of a soil release polymer; and d) the balance carrier and adjunct ingredients.
• Also preferred fabric surface modification compositions for treatment of proteinaceous soils comprise: a) from about 0.01 % by weight, of a water-soluble or dispersible, bleach stable, modified polyamine fabric surface modifier according to the present invention; b) from about 0.01% by weight, of a fabric conditioning agent; c) from about 0.01% by weight, of a perfume system; and d) the balance carrier and adjunct ingredients.
• More preferred fabric surface modification compositions for treatment of proteinaceous stoils comprise: a) from about 0.01% by weight, of a water-soluble or dispersible, bleach stable, modified polyamine fabric surface modifier according to the present invention; b) from about 0.01% by weight, of a fabric conditioning agent; c) from about 0.01% by weight, of a soil release agent; d) from about 0.01 % by weight, of a perfume system; and e) the balance carrier and adjunct ingredients.
• Fabric surface modification compositions according to the present invention for treatment of greasy/oily soils and lipophilic grime comprise: a) from about 0.01 % by weight, of a detersive surfactant selected from the group nonionic, anionic, zwitterionic, ampholytic surfactants, and mixtures thereof; b) from about 0.01 % by weight, of a fabric conditioning agent; c) from about 0.01% by weight, of a water-soluble or dispersible, bleach stable, modified polyamine fabric surface modifier according to the present invention; and d) the balance carrier and adjunct ingredients.
• a detersive surfactant selected from the group nonionic, anionic, zwitterionic, ampholytic surfactants, and mixtures thereof
• a fabric conditioning agent from about 0.01 % by weight, of a fabric conditioning agent
• c) from about 0.01% by weight, of a water-soluble or dispersible, bleach stable, modified polyamine fabric surface modifier according to the present invention and d) the balance carrier and adjunct ingredients.
• Preferred fabric surface modification compositions for treatment of proteinaceous soils comprise: a) from about 0.01% by weight, of a detersive surfactant selected from the group nonionic, anionic, zwitterionic, ampholytic surfactants, and mixtures thereof; b) from about 0.01% by weight, of a fabric conditioning agent; c) from about 0.01% by weight, of a water-soluble or dispersible, bleach stable, modified polyamine fabric surface modifier according to the present invention; d) from about 0.01% by weight, of a soil release polymer; and e) the balance carrier and adjunct ingredients.
• a detersive surfactant selected from the group nonionic, anionic, zwitterionic, ampholytic surfactants, and mixtures thereof
• a fabric conditioning agent from about 0.01% by weight, of a fabric conditioning agent
• More preferred fabric surface modification compositions for treatment of proteinaceous soils comprise: a) from about 0.01% by weight, of a detersive surfactant selected from the group nonionic, anionic, zwitterionic, ampholytic surfactants, and mixtures thereof; b) from about 0.01 % by weight, of a water-soluble or dispersible, bleach stable, modified polyamine fabric surface modifier according to the present invention; c) from about 0.01 % by weight, of a fabric conditioning agent; d) optionally from about 0.001% by weight, of an enzyme (preferably a protease enzyme); e) from about 0.01 % by weight, of a perfume system; and f) the balance carrier and adjunct ingredients.
• a detersive surfactant selected from the group nonionic, anionic, zwitterionic, ampholytic surfactants, and mixtures thereof
• a water-soluble or dispersible, bleach stable, modified polyamine fabric surface modifier according to the present invention c) from about 0.01 % by weight,
• the fabric surface modification pre-treatments, pre-soaks, and rinse-added compositions can be granules, flakes or laundry bars.
• the liquid embodiments can have a wide range of viscosity and may include heavy concentrates, pourable "ready” liquids, or light duty fabric pre-treatments.
• the surface modification pre-treatments may be in the form of spray-on materials wherein the carrier is water, a low boiling alcohol or other suitable solvent.
• pre-treatment and rinse-added formulas may be delivered by a "roll-on" device, disolvable container, or other method that ensures even contact of the active ingredients to the fabric surface.
• pre-soaks or soaking baths formulations may be in the form of highly concentrated granules that are dissolved in water or other suitable combination of water and carriers.
• the dilution of these concentrates may be carried out by an agent utilizing the invention, such as fabric manufacturers pre-treating newly manufactured fabric, or by the consumer.
• compositions of the present invention may optionally comprise protease enzymes which can be admixed with other suitable ingredients to form an enzyme boosted pre-treatment, pre-soak or rinse-added fabric modification composition.
• the fabric surface modifying agents of the present invention are water-soluble or dispersible, modified polyamines.
• These polyamines comprise backbones that can be either linear or cyclic.
• the polyamine backbones can also comprise polyamine branching chains to a greater or lesser degree.
• the polyamine backbones described herein are modified in such a manner that each nitrogen of the polyamine chain is thereafter described in terms of a unit that is substituted, quaternized, oxidized, or combinations thereof.
• the term "modification" as it relates to the chemical structure of the polyamines is defined as replacing a backbone -NH hydrogen atom by an E unit (substitution), quaternizing a backbone nitrogen (quaternized) or oxidizing a backbone nitrogen to the N-oxide (oxidized).
• substitution and “substitution” are used interchangably when referring to the process of replacing a hydrogen atom attached to a backbone nitrogen with an E unit. Quaternization or oxidation may take place in some circumstances without substitution, but substitution must be accompanied by oxidation or quaternization of at least one backbone nitrogen.
• linear or non-cyclic polyamine backbones that comprise the cotton soil release agents of the present invention have the general formula: ⁇ i
• primary amine nitrogens comprising the backbone or branching chain once modified are defined as V or Z "terminal" units.
• V or Z "terminal" units For example, when a primary amine moiety, located at the end of the main polyamine backbone or branching chain having the structure
• H 2 N-R]- is modified according to the present invention, it is thereafter defined as a V "terminal" unit, or simply a V unit.
• V terminal unit
• some or all of the primary amine moieties can remain unmodified subject to the restrictions further described herein below. These unmodified primary amine moieties by virtue of their position in the backbone chain remain “terminal” units.
• a primary amine moiety located at the end of the main polyamine backbone having the structure
• -NH 2 is modified according to the present invention, it is thereafter defined as a Z "terminal" unit, or simply a Z unit. This unit can remain unmodified subject to the restrictions further described herein below.
• secondary amine nitrogens comprising the backbone or branching chain once modified are defined as W "backbone" units.
• W backbone
• H —[N-R]- is modified according to the present invention, it is thereafter defined as a W "backbone” unit, or simply a W unit.
• W backbone
• some or all of the secondary amine moieties can remain unmodified. These unmodified secondary amine moieties by virtue of their position in the backbone chain remain "backbone” units.
• tertiary amine nitrogens comprising the backbone or branching chain once modified are further referred to as Y "branching" units.
• Y branch point of either the polyamine backbone or other branching chains or rings, having the structure
• I — [N-R]- is modified according to the present invention, it is thereafter defined as a Y "branching" unit, or simply a Y unit.
• some or all or the tertiary amine moieties can remain unmodified. These unmodified tertiary amine moieties by virtue of their position in the backbone chain remain "branching" units.
• the R units associated with the V, W and Y unit nitrogens which serve to connect the polyamine nitrogens, are described herein below.
• V(n-k+l)W m Y n Y'kZ for cyclic polyamine cotton soil release polymers.
• the polyamine backbone has the formula
• the polyamine backbones of the present invention comprise no rings.
• a fully non-branched linear modified polyamine according to the present invention has the formula
• n is equal to 0.
• n the lower the ratio of m to n
• degree of branching in the molecule typically the value for m ranges from a minimum value of 4 to about 400, however larger values of m, especially when the value of the index n is very low or nearly 0, are also preferred.
• Each polyamine nitrogen whether primary, secondary or tertiary, once modified according to the present invention, is further defined as being a member of one of three general classes; simple substituted, quaternized or oxidized. Those polyamine nitrogen units not modified are classed into V, W, Y, or Z units depending on whether they are primary, secondary or tertiary nitrogens. That is unmodified primary amine nitrogens are V or Z units, unmodified secondary amine nitrogens are W units and unmodified tertiary amine nitrogens are Y units for the pu ⁇ oses of the present invention.
• Modified primary amine moieties are defined as V "terminal" units having one of three forms: a) simple substituted units having the structure:
• Modified secondary amine moieties are defined as W "backbone" units having one of three forms: a) simple substituted units having the structure:
• Modified tertiary amine moieties are defined as Y "branching" units having one of three forms: a) unmodified units having the structure:
• Certain modified primary amine moieties are defined as Z "terminal" units having one of three forms: a) simple substituted units having the structure:
• a primary amine unit comprising one E unit in the form of a hydroxyethyl moiety is a V terminal unit having the formula (HOCH 2 CH 2 )HN-.
• the Z "terminal” unit derives from a terminal primary amino moiety of the structure -NH2-
• Non-cyclic polyamine backbones according to the present invention comprise only one Z unit whereas cyclic polyamines can comprise no Z units.
• the Z "terminal” unit can be substituted with any of the E units described further herein below, except when the Z unit is modified to form an N-oxide. In the case where the Z unit nitrogen is oxidized to an N-oxide, the nitrogen must be modified and therefore E cannot be a hydrogen.
• the polyamines of the present invention comprise backbone R "linking" units that serve to connect the nitrogen atoms of the backbone.
• R units comprise units that for the pu ⁇ oses of the present invention are referred to as "hydrocarbyl R" units and “oxy R” units.
• the "hydrocarbyl” R units are C2-C12 alkylene, C4-C12 alkenylene, C3-C12 hydroxyalkylene wherein the hydroxyl moiety may take any position on the R unit chain except the carbon atoms directly connected to the polyamine backbone nitrogens; C4- Cj2 dihydroxyalkylene wherein the hydroxyl moieties may occupy any two of the carbon atoms of the R unit chain except those carbon atoms directly connected to the polyamine backbone nitrogens; Cg-Cj2 dialkylarylene which for the purpose of the present invention are arylene moieties having two alkyl substituent groups as part of the linking chain.
• a dialkylarylene unit has the formula
• the unit need not be 1 ,4-substituted, but can also be 1 ,2 or 1 ,3 substitutedC 2 - C12 alkylene, preferably ethylene, 1 ,2-propylene, and mixtures thereof, more preferably ethylene.
• the "oxy" R units comprise -(R 1 0) x R 5 (OR' ) x -, CH 2 CH(OR2)CH2O) z (R , O) y R 1 (OCH 2 CH(OR 2 )CH2) w -, -CH 2 CH(OR 2 )CH 2 -, (R1 O) X R1 -, and mixtures thereof.
• Preferred R units are C2-C12 alkylene, C3-C12 hydroxyalkylene, C4-C12 dihydroxyalkylene, Cg-Cj2 dialkylarylene, -(Rl ⁇ ) ⁇ R 1 -, -
• R units are C2-C12 alkylene, C3-C12 hydroxy ⁇ alkylene, C4-C12 dihydroxyalkylene, -(R ⁇ O ⁇ R 1 -, -(R 1 O) x R 5 (OR 1 ) x -, (CH2CH(OH)CH 2 O) z (R 1 O) y R 1 (OCH2CH-(OH)CH 2 ) w -, and mixtures thereof, even more preferred R units are C2-C12 alkylene, C3 hydroxyalkylene, and mixtures thereof, most preferred are C2-C6 alkylene.
• the most preferred backbones of the present invention comprise at least 50% R units that are ethylene.
• Rl units are C2-C6 alkylene, and mixtures thereof, preferably ethylene.
• R2 is hydrogen, and -(Rl ⁇ ) x B, preferably hydrogen.
• R 3 is C1-C18 alkyl, C7-C12 arylalkylene, C7-C12 alkyl substituted aryl, C6-C12 aryl, and mixtures thereof , preferably C1-C12 alkyl, C7-C12 arylalkylene, more preferably C ⁇ -C ⁇ 2 alkyl, most preferably methyl.
• R 3 units serve as part of E units described herein below.
• R 4 is C ⁇ -C ⁇ 2 alkylene, C4-C12 alkenylene, Cg-Cj2 arylalkylene, Cg-Cj ⁇ arylene, preferably C ⁇ -C ⁇ Q alkylene, Cg-Cj2 arylalkylene, more preferably C2-Cg alkylene, most preferably ethylene or butylene.
• R5 is C1-C12 alkylene, C3-C12 hydroxyalkylene, C4-C12 dihydroxyalkylene, Cg-Ci 2 dialkylarylene, -C(O)-, -C(O)NHR6NHC(O)-, -C(O)(R 4 ) r C(O)-, -R J (OR 1 )-, -CH 2 CH(OH)CH 2 O(R ⁇ O) y R J OCH 2 CH(OH)CH 2 -, -C(O)(R 4 ) r C(O)-, -CH 2 CH(OH)CH 2 -, R 5 is preferably ethylene, -C(O)-, -C(O)NHR 6 NHC(O)-, -R 1 (OR 1 )-, -CH2CH(OH)CH2-, -CH2CH(OH)CH 2 O(R 1 O) y R 1 OCH 2 CH-(OH)CH2-, more preferably
• R6 is C2-C]2 alkylene or Cg-C 12 arylene.
• the preferred "oxy" R units are further defined in terms of the R 1 , R2, and R ⁇ units.
• Preferred "oxy" R units comprise the preferred R 1 , R2, and R ⁇ units.
• the preferred cotton soil release agents of the present invention comprise at least 50% R 1 units that are ethylene.
• Preferred R 1 , R2, and R ⁇ units are combined with the "oxy" R units to yield the preferred "oxy” R units in the following manner.
• E units are selected from the group consisting of hydrogen, C1-C22 alkyl, C3- C 2 2 alkenyl, C7-C22 arylalkyl, C 2 -C 2 2 hydroxyalkyl, -(CH 2 ) p CO 2 M, -(CH 2 ) q SO 3 M, - CH(CH 2 CO 2 M)CO2M, -(CH 2 ) p PO 3 M, -(Rl ⁇ ) m B, -C(O)R 3 , preferably hydrogen, C 2 - C22 hydroxyalkylene, benzyl, C1-C22 alkylene, -(R ⁇ mB, -C(O)R 3 , -(CH2) p CO2M, - (CH2) q SO3M, -CH(CH2CO2M)CO2M, more preferably C 1 -C 2 2 alkylene, -(R 1 0) x B, -C(O)R 3 , -(
• E units do not comprise hydrogen atom when the V, W or Z units are oxidized, that is the nitrogens are N-oxides.
• the backbone chain or branching chains do not comprise units of the following structure:
• E units do not comprise carbonyl moieties directly bonded to a nitrogen atom when the V, W or Z units are oxidized, that is, the nitrogens are N-oxides.
• the E unit -C(O)R 3 moiety is not bonded to an N- oxide modified nitrogen, that is, there are no N-oxide amides having the structure
• B is hydrogen, C ⁇ -C 6 alkyl, -(CH 2 ) q SO3M, -(CH2) p CO2M, -(CH2) q - (CHSO 3 M)CH2SO 3 M, -(CH 2 ) q (CHSO2M)CH 2 SO3M, -(CH 2 ) p PO 3 M, -PO3M, preferably hydrogen, -(CH 2 )qSO 3 M, -(CH2)q(CHSO 3 M)CH2SO3M, -(CH 2 ) q - (CHSO2M)CH2SO3M, more preferably hydrogen or -(CH2) q SO3M.
• M is hydrogen or a water soluble cation in sufficient amount to satisfy charge balance.
• a sodium cation equally satisfies -(CH2) p CO2M, and (CH2) q S03M, thereby resulting in -(CH2) p CO2Na, and -(CH2) q SO3Na moieties.
• More than one monovalent cation, (sodium, potassium, etc.) can be combined to satisfy the required chemical charge balance.
• more than one anionic group may be charge balanced by a divalent cation, or more than one mono-valent cation may be necessary to satisfy the charge requirements of a poly-anionic radical.
• a - (CH2) p PO3M moiety substituted with sodium atoms has the formula -(CH2) p PO3Na3.
• Divalent cations such as calcium (Ca2 + ) or magnesium (Mg2 + ) may be substituted for or combined with other suitable mono-valent water soluble cations.
• Preferred cations are sodium and potassium, more preferred is sodium.
• X is a water soluble anion such as chlorine (Cl"), bromine (Br) and iodine (I") or X can be any negatively charged radical such as sulfate (SO42”) and methosulfate (CH3SO3-).
• indices have the following values: p has the value from 1 to 6, q has the value from 0 to 6; r has the value 0 or 1 ; w has the value 0 or 1 , x has the value from 1 to 100; y has the value from 0 to 100; z has the value 0 or 1 ; m has the value from 4 to about 400, n has the value from 0 to about 200; m + n has the value of at least 5.
• the preferred fabric surface modifiers of the present invention comprise polyamine backbones wherein less than about 50% of the R groups comprise "oxy" R units, preferably less than about 20% , more preferably less than 5%, most preferably the R units comprise no "oxy" R units.
• the most preferred fabric surface modifiers which comprise no "oxy" R units comprise polyamine backbones wherein less than 50% of the R groups comprise more than 3 carbon atoms.
• ethylene, 1,2-propylene, and 1,3-propylene comprise 3 or less carbon atoms and are the preferred "hydrocarbyl" R units. That is when backbone R units are C 2 -Cj 2 alkylene, preferred is C2-C3 alkylene, most preferred is ethylene.
• the fabric surface modifiers of the present invention comprise modified homogeneous and non-homogeneous polyamine backbones, wherein 100% or less of the -NH units are modified.
• the term "homogeneous polyamine backbone” is defined as a polyamine backbone having R units that are the same (i.e., all ethylene). However, this sameness definition does not exclude polyamines that comprise other extraneous units comprising the polymer backbone which are present due to an artifact of the chosen method of chemical synthesis.
• ethanolamine may be used as an "initiator" in the synthesis of polyethyleneimines, therefore a sample of polyethyleneimine that comprises one hydroxyethyl moiety resulting from the polymerization "initiator” would be considered to comprise a homogeneous polyamine backbone for the purposes of the present invention.
• a polyamine backbone comprising all ethylene R units wherein no branching Y units are present is a homogeneous backbone.
• a polyamine backbone comprising all ethylene R units is a homogeneous backbone regardless of the degree of branching or the number of cyclic branches present.
• non-homogeneous polymer backbone refers to polyamine backbones that are a composite of various R unit lengths and R unit types.
• a non-homogeneous backbone comprises R units that are a mixture of ethylene and 1,2-propylene units.
• a mixture of "hydrocarbyl” and “oxy” R units is not necessary to provide a non- homogeneous backbone.
• the proper manipulation of these "R unit chain lengths" provides the formulator with the ability to modify the solubility and fabric substantivity of the fabric surface modifiers of the present invention.
• Preferred fabric surface modifiers of the present invention comprise homogeneous polyamine backbones that are totally or partially substituted by polyethyleneoxy moieties, totally or partially quaternized amines, nitrogens totally or partially oxidized to N-oxides, and mixtures thereof.
• polyethyleneoxy moieties totally or partially quaternized amines
• nitrogens totally or partially oxidized to N-oxides, and mixtures thereof.
• not all backbone amine nitrogens must be modified in the same manner, the choice of modification being left to the specific needs of the formulator.
• the degree of ethoxylation is also determined by the specific requirements of the formulator.
• the preferred polyamines that comprise the backbone of the compounds of the present invention are generally polyalkyleneamines (PAA's), polyalkyleneimines (PAI's), preferably polyethyleneamine (PEA's), polyethyleneimines (PEI's), or PEA's or PEI's connected by moieties having longer R units than the parent PAA's, PAI's, PEA's or PEI's.
• a common polyalkyleneamine (PAA) is tetrabutylenepentamine. PEA's are obtained by reactions involving ammonia and ethylene dichloride, followed by fractional distillation. The common PEA's obtained are triethylenetetramine (TETA) and teraethylenepentamine (TEPA).
• the cogenerically derived mixture does not appear to separate by distillation and can include other materials such as cyclic amines and particularly piperazines. There can also be present cyclic amines with side chains in which nitrogen atoms appear. See U.S. Patent 2,792,372, Dickinson, issued May 14, 1957, which describes the preparation of PEA's.
• Preferred amine polymer backbones comprise R units that are C2 alkylene (ethylene) units, also known as polyethylenimines (PEI's).
• Preferred PEI's have at least moderate branching, that is the ratio of m to n is less than 4:1, however PEI's having a ratio of m to n of about 2: 1 are most preferred.
• Preferred backbones, prior to modification have the general formula:
• PEI's prior to modification, will have a molecular weight greater than about 200 daltons.
• the relative proportions of primary, secondary and tertiary amine units in the polyamine backbone will vary, depending on the manner of preparation.
• Each hydrogen atom attached to each nitrogen atom of the polyamine backbone chain represents a potential site for subsequent substitution, quaternization or oxidation.
• polyamines can be prepared, for example, by polymerizing ethyleneimine in the presence of a catalyst such as carbon dioxide, sodium bisulfite, sulfuric acid, hydrogen peroxide, hydrochloric acid, acetic acid, etc.
• a catalyst such as carbon dioxide, sodium bisulfite, sulfuric acid, hydrogen peroxide, hydrochloric acid, acetic acid, etc.
• Specific methods for preparing these polyamine backbones are disclosed in U.S. Patent 2,182,306, Ulrich et al., issued December 5, 1939; U.S. Patent 3,033,746, Mayle et al., issued May 8, 1962; U.S. Patent 2,208,095, Esselmann et al., issued July 16, 1940; U.S. Patent 2,806,839, Crowther, issued September 17, 1957; and U.S. Patent 2,553,696, Wilson, issued May 21, 1951; all herein inco ⁇ orated by reference.
• modified cotton soil release polymers of the present invention comprising PEI's, are illustrated in Formulas I - IV:
• Formula I depicts a fabric surface modifier comprising a PEI backbone wherein all substitutable nitrogens are modified by replacement of hydrogen with a polyoxyalkyleneoxy unit, -(CH2CH2 ⁇ )7H, having the formula
• Formula I This is an example of a fabric surface modifier that is fully modified by one type of moiety.
• Formula II depicts a fabric surface modifier comprising a PEI backbone wherein all substitutable primary amine nitrogens are modified by replacement of hydrogen with a polyoxyalkyleneoxy unit, -(CH2CH2 ⁇ )7H, the molecule is then modified by subsequent oxidation of all oxidizable primary and secondary nitrogens to N-oxides, said fabric surface modifier having the formula
• Formula II Formula III depicts a fabric surface modifier comprising a PEI backbone wherein all backbone hydrogen atoms are substituted and some backbone amine units are quaternized.
• the substituents are polyoxyalkyleneoxy units, -(CH2CH2 ⁇ )7H, or methyl groups.
• the modified PEI fabric surface modifier has the formula
• Formula III depicts a fabric surface modifier comprising a PEI backbone wherein the backbone nitrogens are modified by substitution (i.e. by -(CH2CH2 ⁇ )7H or methyl), quaternized, oxidized to N-oxides or combinations thereof.
• the resulting fabric surface modifier has the formula
• not all nitrogens of a unit class comprise the same modification.
• the present invention allows the formulator to have a portion of the secondary amine nitrogens ethoxylated while having other secondary amine nitrogens oxidized to N-oxides.
• This also applies to the primary amine nitrogens, in that the formulator may choose to modify all or a portion of the primary amine nitrogens with one or more substituents prior to oxidation or quaternization. Any possible combination of E groups can be substituted on the primary and secondary amine nitrogens, except for the restrictions described herein above.
• the term "effective amount" when related to the modified polyamines described herein refers to the amount of polyamine necesssary to modify the surface of a fabric to achieve increased removal of greasy oily dirt, lipophilic grime, and proteinaceous soils. Typically 0.01% by weight, of polyamine is sufficient to effect an icreased stain or dirt removal.
• compositions of the present invention can contain from about 5% to about 95%, preferably from about 15% to about 90%, more preferably from about 25% to about 85%, and even more preferably from about 25% to about 55%, of biodegradable cationic fabric conditioning agent, preferably an ester quaternary ammonium compound (EQA).
• biodegradable cationic fabric conditioning agent preferably an ester quaternary ammonium compound (EQA).
• the fabric conditioning components suitable for use in the compositions of the present invention is preferably a fabric softening compound which is an ester quaternary ammonium (EQA) compound or its precursor amine having the formula:
• EQA ester quaternary ammonium
• R 1 is C j -C ⁇ alkyl, C1 -C4 hydroxy alkyl group, or benzyl, preferably C1-C3 alkyl, for example, methyl, ethyl, propyl, most preferred is methyl; preferably one Rl moiety is a short chain alkyl group, preferably methyl;
• R 2 is Cg-C30 saturated alkyl or Cg-C3 Q unsaturated alkyl, Cg-C3 ⁇ substituted alkyl or C8-C30 unsubstituted alkyl, preferably C ⁇ -C j g saturated alkyl or C14-C18 unsaturated alkyl, Ci4-C ⁇ g substituted alkyl or C j 4-Cig unsubstituted alkyl, more preferably linear C ⁇ -Cjg saturated alkyl, wherein
• Tallow is a convenient and inexpensive source of long chain alkyl and alkenyl materials.
• substituents Rl and R2 of Formula I can optionally be substituted with various groups such as alkoxyl or hydroxyl groups.
• the preferred compounds can be considered to be diester (DEQA) variations of ditallow dimethyl ammonium methyl sulfate (DTDMAMS), which is a widely used fabric softener. At least 80% of the DEQA is in the diester form, and from 0% to about 20%, preferably less than about 10%, more preferably less than about 5%, can be EQA monoester (e.g., only one -Y-R2 group).
• biodegradable Formula I compounds suitable for use in the fabric surface modification compositions herein are: N-methyl-N,N-di-(2-Cj4-C ⁇ g-acyloxy ethyl); N-2-hydroxyethyl ammonium methylsulfate; [HOCH(CH 3 )CH 2 ][CH3] + N[CH 2 CH 2 OC(O)C 15 H 31 ] 2 Br; [HOCH(CH3)CH 2 ][CH 3 ] + N[CH 2 CH 2 OC(O)Ci5H 2 9] 2 [HC(O)O] " ; and [CH2CH 2 OH][CH3] + N[CH2CH 2 OC(O)R2]2 (CH3SO4)-.
• a preferred compound is N-methyl, N,N-di-(2-oleyloxyethyl) N-2-hydroxyethyl ammonium methylsulfate.
• Rl is Cj-C ⁇ alkyl or benzyl, preferably C1-C3 alkyl, for example, methyl, ethyl, propyl, most preferred is methyl; preferably one Rl moiety is a short chain alkyl group, preferably methyl; R2 is Cg-C3o saturated alkyl or Cg-C3o unsaturated alkyl, Cg-C3 ⁇ substituted alkyl or Cg-C3Q unsubstituted alkyl, preferably C ⁇ -Cjg saturated alkyl or Cj4-C ⁇ g unsaturated alkyl, C14-C18 substituted alkyl or C ⁇ -Cj g unsubstituted alkyl, more preferably linear C14-C18 saturated alkyl, wherein each R2 moiety suitable for use has an Iodine Value of from about 3
• the preferred ester linked compounds can be considered to be diester variations of ditallow dimethyl ammonium chloride (DTDMAC), which is a widely used fabric softener.
• DTDMAC ditallow dimethyl ammonium chloride
• at least 80% of the DEQA is in the diester form, and from 0% to about 20%, preferably less than about 10%, more preferably less than about 5%, can be DEQA monoester (e.g., only one -Y-R2 group).
• monoester e.g., only one -Y-R2 group.
• monoester should be low, preferably less than about 2.5%.
• the level of monoester can be controlled in the manufacturing of the DEQA.
• the quaternary conditioning agents with at least partially unsaturated alkyl or acyl groups have advantages (i.e., antistatic benefits) and are highly acceptable for consumer products when certain conditions are met. Antistatic effects are especially important where the fabrics are dried in a tumble dryer, and/or where synthetic materials which generate static are used.
• Any reference to IV values hereinafter refers to IV of fatty alkyl or acyl groups and not to the resulting quaternary, e.g., DEQA compound. As the IV is raised, there is a potential for odor problems.
• the optimum storage temperature for stability and fluidity depends on the specific IV of, e.g., the fatty acid used to make DEQA and/or the level/type of solvent selected. Exposure to oxygen should be minimized to keep the unsaturated groups from oxidizing. It can therefore be important to store the material under a reduced oxygen atmosphere such as a nitrogen blanket. It is important to provide good molten storage stability to provide a commercially feasible raw material that will not degrade noticeably in the normal transportation/storage/handling of the material in manufacturing operations.
• DEQA Formula II wherein all long-chain alkyl substituents are straight-chain:
• Rl is C1-C4 alkyl, C1-C4 hydroxy alkyl group, preferably methyl; preferably one Rl moiety is a short chain alkyl group, preferably methyl;
• R2 is Cg-C3 ⁇ saturated alkyl or Cg-C30 unsaturated alkyl, C8-C30 substituted alkyl or C8-C30 unsubstituted alkyl, preferably C ⁇ -Cjg saturated alkyl or C j 4-C 1 g unsaturated alkyl, Cj4-C ⁇ g substituted alkyl or C14-C18 unsubstituted alkyl, more preferably linear Cj4-Cjg saturated alkyl, wherein each R2 moiety suitable for use has an Iodine Value of from about 3 to about 60; the counter ion X" is methylsulfate.
• ester quaternary ammonium compound which is suitable for use as a fabric conditioning compound in the present invention is 1,2- bis(tallowyloxy)-3-trimethyl ammoniopropane methylsulfate (DTTMAPMS).
• DTTMAPMS 1,2- bis(tallowyloxy)-3-trimethyl ammoniopropane methylsulfate
• Other suitable examples are 1 ,2-bis(cocoyloxy)-3-trimethyl ammoniopropane methylsulfate, l,2-bis(lauryloxy)-3-trimethyl ammoniopropane methylsulfate, l,2-bis(oleyloxy)-3- trimethyl ammoniopropane methylsulfate and l,2-bis(stearyloxy)-3-trimethyl ammoniopropane methylsulfate.
• Formula III EQA compounds of this invention are obtained by, e.g., replacing "tallowyl” in the above compounds with, for example, cocoyl, lauryl, oleyl, stearyl, palmityl, or the like; replacing "methyl” in the above compounds with ethyl, propyl, isopropyl, butyl, isobutyl, t-butyl, or the hydroxy substituted analogs of these radicals; replacing "methylsulfate” in the above compounds with chloride, ethylsulfate, bromide, formate, sulfate, lactate, nitrate, and the like, but methylsulfate is preferred.
• Rl is C1-C4 alkyl or hydroxy alkyl, preferably C1-C3 alkyl, for example, methyl, ethyl, propyl, most preferred is methyl;
• R2 is Cg-C3o saturated or unsaturated, substituted or unsubstituted alkyl having an Iodine Value of from about 3 to about 60, preferred R2 is Cg-Cj4 linear or branched alkyl, more preferred Cg-Ci4 linear alkyl;
• R 4 is a C]-C4 alcohol;
• the counter ion, X" can be any softener-compatible anion, preferably methylsulfate, ethylsulfate, chloride, bromide, formate, sulfate, lactate, nitrate, benzoate, more preferably methylsulfate.
• the quaternary ammonium compound is a fully saturated compound, such as dimethyl bis(tallowyloxyethyl) ammonium methylsulfate, derived from hardened tallow .
• dimethyl bis(acyloxyethyl) ammonium methylsulfate derivatives of Cg-C3 ⁇ fatty acids such as dimethyl bis(tallowyloxyethyl) ammonium methylsulfate; dimethyl bis(oleyloxyethyl) ammonium methylsulfate or dimethyl bis(cocoy loxyethyl) ammonium methylsulfate.
• the composition of the present invention may comprise from about 15% to about 90% of these quaternary ammonium compounds.
• ester quaternary ammonium compounds suitable for use as a fabric conditioning compound according to the present invention is N-methyl-N,N-bis-(2-C ⁇ A-C ⁇ g-acyloxy)ethy l-N-2-hydroxyethy 1 ammonium methylsulfate.
• a preferred example is N-methyl-N,N-bis(2-oleyloxyethyl)-N-(2- hydroxyethyl) ammonium methylsulfate.
• the fabric conditioning composition can be any of those known in the art and/or previously disclosed by others in patent applications. Compositions that are suitable are disclosed in U.S. Pat.
• the compounds herein can be prepared by standard esterification and quaternization reactions, using readily available starting materials. General methods for preparation are disclosed in U.S. Pat. No. 4,137,180, inco ⁇ orated herein by reference.
• the diester quat when specified, it will include the monoester quat that is normally present.
• the percentage of monoester quat should be as low as possible, preferably less than about 20%.
• the level of monoester quat present can be controlled in the manufacturing of the EQA.
• EQA compounds prepared with fully saturated acyl groups are rapidly biodegradable and excellent softeners.
• compounds prepared with at least partially unsaturated acyl groups have advantages (i.e., antistatic benefits) and are highly acceptable for consumer products when certain conditions are met.
• IV Iodine Value
• Antistatic effects are especially important where the fabrics are dried in a tumble dryer, and/or where synthetic materials which generate static are used. As the IV is raised, there is a potential for odor problems.
• Such sources must be deodorized, e.g., by abso ⁇ tion, distillation (including stripping such as steam stripping), etc., as is well known in the art.
• diester compounds derived from fatty acyl groups having low IV values can be made by mixing fully hydrogenated fatty acid with touch hydrogenated fatty acid at a ratio which provides an IV of from about 3 to about 60.
• the polyunsaturation content of the touch hardened fatty acid should be less than about 5%, preferably less than about 1%.
• touch hardening the cis/trans isomer weight ratios are controlled by methods known in the art such as by optimal mixing, using specific catalysts, providing high H2 availability, etc.
• An preferred conditioning agent of the present invention is a nonionic fabric softener material.
• nonionic fabric softener materials typically have an HLB of from about 2 to about 9, more typically from about 3 to about 7.
• the materials selected should be relatively crystalline, higher melting, (e.g., >25 °C).
• the level of optional nonionic softener in the solid composition is typically from about 10% to about 50%, preferably from about 15% to about 40%.
• Preferred nonionic softeners are fatty acid partial esters of polyhydric alcohols, or anhydrides thereof, wherein the alcohol, or anhydride, contains from about 2 to about 18, preferably from about 2 to about 8, carbon atoms, and each fatty acid moiety contains from about 8 to about 30, preferably from about 12 to about 20, carbon atoms.
• such softeners contain from about one to about 3, preferably about 2 fatty acid groups per molecule.
• the polyhydric alcohol portion of the ester can be ethylene glycol, glycerol, poly (e.g., di-, tri-, tetra, penta-, and/or hexa-) glycerol, xylitol, sucrose, erythritol, penta ⁇ erythritol, sorbitol or sorbitan.
• the fatty acid portion of the ester is normally derived from fatty acids having from about 8 to about 30, preferably from about 12 to about 22, carbon atoms. Typical examples of said fatty acids being lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, and behenic acid.
• Highly preferred optional nonionic softening agents for use in the present invention are C 10-C26 acyl sorbitan esters and polyglycerol monostearate.
• Sorbitan esters are esterified dehydration products of sorbitol.
• the preferred sorbitan ester comprises a member selected from the group consisting of C10-C26 acyl sorbitan monoesters and C10-C26 acyl sorbitan diesters and ethoxylates of said esters wherein one or more of the unesterified hydroxyl groups in said esters contain from 1 to about 6 oxyethylene units, and mixtures thereof.
• sorbitan esters containing unsaturation e.g., sorbitan monooleate
• Sorbitol which is typically prepared by the catalytic hydrogenation of glucose, can be dehydrated in well known fashion to form mixtures of 1,4- and 1,5-sorbitol anhydrides and small amounts of isosorbides. (See U.S. Pat. No. 2,322,821, Brown, issued June 29, 1943, inco ⁇ orated herein by reference.)
• sorbitan complex mixtures of anhydrides of sorbitol are collectively referred to herein as "sorbitan.” It will be recognized that this "sorbitan" mixture will also contain some free, uncyclized sorbitol.
• the preferred sorbitan softening agents of the type employed herein can be prepared by esterifying the "sorbitan" mixture with a fatty acyl group in standard fashion, e.g., by reaction with a fatty acid halide, fatty acid ester, and/or fatty acid.
• the esterification reaction can occur at any of the available hydroxyl groups, and various mono-, di-, etc., esters can be prepared. In fact, mixtures of mono-, di-, tri-, etc., esters almost always result from such reactions, and the stoichiometric ratios of the reactants can be simply adjusted to favor the desired reaction product.
• etherification and esterification are generally accomplished in the same processing step by reacting sorbitol directly with fatty acids.
• Such a method of sorbitan ester preparation is described more fully in MacDonald; "Emulsifiers:” Processing and Quality Control:, Journal of the American Oil Chemists' Society, Vol. 45, October 1968.
• sorbitan esters herein, especially the "lower” ethoxylates thereof (i.e., mono-, di-, and tri-esters wherein one or more of the unesterified -OH groups contain one to about twenty oxyethylene moieties (Tweens®) are also useful in the composition of the present invention. Therefore, for pu ⁇ oses of the present invention, the term "sorbitan ester" includes such derivatives.
• sorbitan mono-ester e.g., monostearate
• a typical analysis of sorbitan monostearate indicates that it comprises about 27% mono-. 32% di- and 30% tri- and tetra-esters.
• Commercial sorbitan monostearate therefore is a preferred material.
• Mixtures of sorbitan stearate and sorbitan palmitate having stearate/palmitate weight ratios varying between 10:1 and 1 :10, and 1,5-sorbitan esters are useful. Both the 1 ,4- and 1 ,5-sorbitan esters are useful herein.
• alkyl sorbitan esters for use in the softening compositions herein include sorbitan monolaurate, sorbitan monomyristate, sorbitan monopalmitate, sorbitan monobehenate, sorbitan monooleate, sorbitan dilaurate, sorbitan dimyristate, sorbitan dipalmitate, sorbitan distearate, sorbitan dibehenate, sorbitan dioleate, and mixtures thereof, and mixed tallowalkyl sorbitan mono- and di-esters.
• Such mixtures are readily prepared by reacting the foregoing hydroxy-substituted sorbitans, particularly the 1 ,4- and 1,5 -sorbitans, with the corresponding acid, ester, or acid chloride in a simple esterification reaction. It is to be recognized, of course, that commercial materials prepared in this manner will comprise mixtures usually containing minor proportions of uncyclized sorbitol, fatty acids, polymers, isosorbide structures, and the like. In the present invention, it is preferred that such impurities are present at as low a level as possible.
• the preferred sorbitan esters employed herein can contain up to about 15% by weight of esters of the C20-C26' an ⁇ 1 higher, fatty acids, as well as minor amounts of Cg, and lower, fatty esters.
• Glycerol and polyglycerol esters are also preferred herein (e.g., polyglycerol monostearate with a trade name of Radiasurf 7248).
• Glycerol esters can be prepared from naturally occurring triglycerides by normal extraction, purification and/or inter-esterification processes or by esterification processes of the type set forth hereinbefore for sorbitan esters. Partial esters of glycerin can also be ethoxylated to form usable derivatives that are included within the term "glycerol esters.”
• Useful glycerol and polyglycerol esters include mono-esters with stearic, oleic, palmitic, lauric, isostearic, myristic, and/or behenic acids and the diesters of stearic, oleic, palmitic, lauric, isostearic, behenic, and/or myristic acids. It is understood that the typical mono-ester contains some di- and tri-ester, etc.
• the "glycerol esters” also include the polyglycerol, e.g., diglycerol through octaglycerol esters.
• the polyglycerol polyols are formed by condensing glycerin or epichlorohydrin together to link the glycerol moieties via ether linkages.
• the mono- and/or diesters of the polyglycerol polyols are preferred, the fatty acyl groups typically being those described hereinbefore for the sorbitan and glycerol esters.
• the dryer activated fabric softening compositions of the present invention may further includes a co-softener.
• the co-softener may comprise a carboxylic acid salt of a tertiary amine, tertiary amine ester, or mixtures thereof.
• the carboxylic acid salt forming anion moiety of the co-softener may be selected from the group consisting of lauric, myristic, palmitic, stearic, oleic and mixtures thereof.
• the amine salt of the co-softener may be selected from the group consisting of oleyldimethylamine stearate, dioleyl- methylamine stearate, linoleyldimethylamine stearate, dilinoleylmethylamine stearate, stearyldimethylamine stearate, distearylmethylamine myristate, stearyldimethylamine palmitate, distearylmethylamine palmitate, distearylmethylamine myristate, distearyl ⁇ methylamine palmitate, distearylmethylamine laurate, dioleyldistearylmethylamine oleate, distearylmethyl-amine oleate, and mixtures thereof.
• Adjunct fabric conditioning compositions employed herein contain as an optional component, at a level of from about 0% to about 95%, preferably from about 20% to about 75%, more preferably from about 20% to about 60%, a carboxylic acid salt of a tertiary amine and/or ester amine which has the formula:
• R ⁇ is a long chain aliphatic group containing from about 8 to about 30 carbon atoms
• R 4 and R ⁇ are the same or different and are independently selected from the group consisting of aliphatic groups containing from about 1 to about 30 carbon atoms, hydroxyalkyl groups of the formula R ⁇ OH wherein R ⁇ is an alkylene group of from about 2 to about 30 carbon atoms, and polyalkyleneoxy moieties of the formula R ⁇ O(Rl ⁇ O) m - wherein R ⁇ is hydrogen, C1-C30 alkyl, C1-C30 alkenyl, and mixtures thereof; RlO is ethylene, 1,2 propylene, 1,3 -propylene, and mixtures thereof; m is from about 2 to about 10; wherein further the R 4 , R ⁇ , R ⁇ , R ⁇ , and R ⁇ chains can be ester interrupted groups; and wherein R' is selected from the group consisting of C2-C30 linear alkyl, C2-C30 linear alkenyl, Cg-C
• R ⁇ is an aliphatic chain containing from about C ⁇ 2 -C3 ⁇ linear alkyl
• R6 is C12-C30 linear alkyl
• R 4 is C1-C30 linear alkyl.
• Examples of preferred tertiary amines as starting material for the reaction between the amine and carboxylic acid to form the tertiary amine salts are: lauryldimethylamine, myristyldimethylamine, stearyldimethylamine, tallow-dimethylamine, coconutdimethyl- amine, dilaurylmethylamine, distearylmethylamine, ditallowmethylamine, oleyldimethylamine, dioleylmethylamine, lauryldi(3-hydroxypropyl)amine, stearyldi(2- hydroxyethyl)amine, trilaurylamine, laurylethyl-methylamine, and
• Preferred fatty acids are those wherein R? is Cg-C3 ⁇ linear alkyl, more preferably ⁇ l l'C 17 linear alkyl.
• Examples of specific carboxylic acids as a starting material are: formic acid, acetic acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, oxalic acid, adipic acid, 12-hydroxy stearic acid, benzoic acid, 4-hydroxy benzoic acid, 3-chloro benzoic acid, 4-nitro benzoic acid, 4-ethyl benzoic acid, 4-(2-chloroethyl)benzoic acid, phenylacetic acid, (4-chloro ⁇ henyl)acetic acid, (4-hydroxyphenyl)acetic acid, and phthalic acid.
• Preferred carboxylic acids are stearic, oleic, lauric, myristic, palmitic, and mixtures thereof.
• the amine salt can be formed by a simple addition reaction, well known in the art, disclosed in U.S. Pat. No. 4,237,155, Kardouche, issued Dec. 2, 1980, which is inc ⁇ orated herein by reference. Excessive levels of free amines may result in odor problems, and generally free amines provide poorer softening performance than the amine salts.
• Preferred amine salts for use herein as optional ingredients are those wherein the amine moiety is a Cg-C3 ⁇ alkyl or alkenyl dimethyl amine or a di-Cg-C3 ⁇ alkyl or alkenyl methyl amine, and the acid moiety is a Cg-C3 ⁇ alkyl or alkenyl monocarboxylic acid.
• the amine and the acid, respectively, used to form the amine salt will often be of mixed chain lengths rather than single chain lengths, since these materials are normally derived from natural fats and oils, or synthetic processed which produce a mixture of chain lengths. Also, it is often desirable to utilize mixtures of different chain lengths in order to modify the physical or performance characteristics of the softening composition.
• Specific preferred amine salts for use in the present invention are oleyldimethylamine stearate, stearyldimethylamine stearate, stearyldimethylamine myristate, stearyldimethylamine oleate, stearyldimethylamine palmitate, distearylmethylamine palmitate, distearylmethylamine laurate, and mixtures thereof.
• a particularly preferred mixture is oleyldimethylamine stearate and distearylmethylamine myristate, in a ratio of 1 : 10 to 10:1, preferably about 1 : 1.
• Other cationic materials with ring structures such as alkyl imidazoline, imidazolinium, pyridine, and pyridinium salts having a single C12-C30 alkyl chain can also be used. Very low pH is required to stabilize, e.g., imidazoline ring structures.
• Some alkyl imidazolinium salts and their imidazoline precursors useful in the present invention have the general formula :
• Y 2 is -C(O)-O-, -O-(O)C-, -C(O)-N(R 5 )-, or -N(R 5 )-C(O)- in which R5 is hydrogen or a C1-C4 alkyl radical; R*> is a C1-C4 alkyl radical or H (for imidazoline precursors); R7 and R ⁇ are each independently selected from R and R2 as defined hereinbefore for the single-long-chain cationic surfactant with only one being R2.
• Some alkyl pyridinium salts useful in the present invention have the general formula :
• R2 and X- are as defined above.
• a typical material of this type is cetyl pyridinium chloride.
• the following preferred ingredients can be suitably admixed with the modified polyamine fabric surface modifiers described herein above to obtain fabric treatment compositions useful for providing greasy/oily dirt, lipophilic grime, and proteinaceous soil removal.
• compositions of the present invention comprise at least about 0.01%, preferably at least 0.1%, more preferably from about 1% to about 95%, most preferably from about 1 % to about 80% by weight, of an anionic detersive surfactant.
• Alkyl sulfate surfactants either primary or secondary, are a type of anionic surfactant of importance for use herein.
• Alkyl sulfates have the general formula ROSO3M wherein R preferably is a Cj ⁇ -C 2 4 hydrocarbyl, preferably an alkyl straight or branched chain or hydroxyalkyl having a C ⁇ -C 2 ⁇ alkyl component, more preferably a Cj 2 -C ⁇ g alkyl or hydroxyalkyl, and M is hydrogen or a water soluble cation, e.g., an alkali metal cation (e.g., sodium potassium, lithium), substituted or unsubstituted ammonium cations such as methyl-, dimethyl-, and trimethyl ammonium and quaternary ammonium cations, e.g., tetramethyl- ammonium and dimethyl piperdinium, and cations derived from alkanolamines such as ethanolamine, diethanolamine, triethanolamine, and mixtures thereof, and the like.
• alkyl chains of C ⁇ 2 -C ⁇ g are preferred for lower wash
• Alkyl alkoxylated sulfate surfactants are another category of preferred anionic surfactant. These surfactants are water soluble salts or acids typically of the formula RO(A) m SO3M wherein R is an unsubstituted C ⁇ -C 2 4 alkyl or hydroxyalkyl group having a C10-C24 alkyl component, preferably a C12-C20 alkyl or hydroxyalkyl, more preferably C ⁇ -Cjg alkyl or hydroxyalkyl, A is an ethoxy or propoxy unit, m is greater than zero, typically between about 0.5 and about 6, more preferably between about 0.5 and about 3, and M is hydrogen or a water soluble cation which can be, for example, a metal cation (e.g., sodium, potassium, lithium, calcium, magnesium, etc.), ammonium or substituted-ammonium cation.
• R is an unsubstituted C ⁇ -C 2 4 alkyl or hydroxyalkyl group having
• Alkyl ethoxylated sulfates as well as alkyl propoxylated sulfates are contemplated herein.
• Specific examples of substituted ammonium cations include methyl-, dimethyl-, trimethyl-ammonium and quaternary ammonium cations, such as tetramethyl-ammonium, dimethyl piperdinium and cations derived from alkanolamines, e.g., monoethanolamine, diethanolamine, and triethanolamine, and mixtures thereof.
• Exemplary surfactants are C ⁇ Cjg alkyl polyethoxylate (1.0) sulfate, C]2-C ⁇ g alkyl polyethoxylate (2.25) sulfate, C ⁇ -Cjg alk 1 polyethoxylate (3.0) sulfate, and C ⁇ -Cjg alkyl polyethoxylate (4.0) sulfate wherein M is conveniently selected from sodium and potassium.
• compositions of the present invention comprise at least about 0.01%, preferably at least 0.1%, more preferably from about 1% to about 95%, most preferably from about 1% to about 80% by weight, of an nonionic detersive surfactant.
• Preferred nonionic surfactants such as C ⁇ 2 -C ⁇ g alkyl ethoxylates ("AE") including the so-called narrow peaked alkyl ethoxylates and C ⁇ -C ⁇ 2 alkyl phenol alkoxylates (especially ethoxylates and mixed ethoxy/propoxy), block alkylene oxide condensate of Cg to Cj 2 alkyl phenols, alkylene oxide condensates of Cg-C 22 alkanols and ethylene oxide/propylene oxide block polymers (PluronicTM-BASF Co ⁇ .), as well as semi polar nonionics (e.g., amine oxides and phosphine oxides) can be used in the present compositions.
• AE alky
• Alkylpolysaccharides such as disclosed in U.S. Pat. 4,565,647 Llenado (inco ⁇ orated herein by reference) are also preferred nonionic surfactants in the compositions of the invention.
• nonionic surfactants are the polyhydroxy fatty acid amides having the formula:
• R? is C5-C31 alkyl, preferably straight chain C7-C19 alkyl or alkenyl, more preferably straight chain C9-C17 alkyl or alkenyl, most preferably straight chain Cj ]-Ci5 alkyl or alkenyl, or mixtures thereof;
• R ⁇ is selected from the group consisting of hydrogen, C1-C4 alkyl, C1-C4 hydroxyalkyl, preferably methyl or ethyl, more preferably methyl.
• Q is a polyhydroxyalkyl moiety having a linear alkyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative thereof; preferred alkoxy is ethoxy or propoxy, and mixtures thereof.
• Preferred Q is derived from a reducing sugar in a reductive amination reaction. More preferably Q is a glycityl moiety.
• Suitable reducing sugars include glucose, fructose, maltose, lactose, galactose, mannose, and xylose.
• high dextrose corn syrup, high fructose corn syrup, and high maltose corn syrup can be utilized as well as the individual sugars listed above. These corn syrups may yield a mix of sugar components for Q. It should be understood that it is by no means intended to exclude other suitable raw materials.
• Q is more preferably selected from the group consisting of -CH 2 (CHOH) n CH 2 OH,-CH(CH 2 OH)(CHOH) n . j CH 2 OH, -CH 2 (CHOH) 2 - (CHOR')(CHOH)CH 2 OH, and alkoxylated derivatives thereof, wherein n is an integer from 3 to 5, inclusive, and R' is hydrogen or a cyclic or aliphatic monosaccharide. Most preferred substituents for the Q moiety are glycityls wherein n is 4, particularly -CH 2 (CHOH) 4 CH 2 OH.
• R?CO-N ⁇ can be, for example, cocamide, stearamide, oleamide, lauramide, myristamide, capricamide, palmitamide, tallowamide, etc.
• R8 can be, for example, methyl, ethyl, propyl, isopropyl, butyl, 2-hydroxy ethyl, or 2-hydroxy propyl.
• Q can be 1-deoxyglucityl, 2-deoxyfructityl, 1-deoxymaltityl, 1 -deoxylactityl, 1- deoxygalactityl, 1 -deoxymannityl, 1-deoxymaltotriotityl, etc.
• a particularly desirable surfactant of this type for use in the compositions herein is alkyl-N-methyl glucomide, a compound of the above formula wherein R7 is alkyl (preferably Cj 1-C13), R 8 , is methyl and Q is 1-deoxyglucityl.
• sugar-derived surfactants include the N-alkoxy polyhydroxy fatty acid amides, such as Ci ⁇ -Cjg N-(3-methoxypropyl) glucamide.
• the N-propyl through N- hexyl Cj 2 -C ⁇ g glucamides can be used for low sudsing.
• C ] ⁇ -C 2 ⁇ conventional soaps may also be used. If high sudsing is desired, the branched-chain C j o-Cjg soaps may be used.
• Other conventional useful surfactants are listed in standard texts.
• the products herein can also contain from about 0.5% to about 60%, preferably from about 1% to about 50%, cyclodextrin/perfume inclusion complexes and/or free perfume, as disclosed in U.S. Pat. Nos. 5,139,687, Borcher et al., issued Aug. 18, 1992; and 5,234,610, Gardlik et al., to issue Aug. 10, 1993, which are inco ⁇ orated herein by reference.
• Perfumes are highly desirable, can usually benefit from protection, and can be complexed with cyclodextrin.
• Fabric softening products typically contain perfume to provide an olfactory aesthetic benefit and/or to serve as a signal that the product is effective.
• Suitable perfume component for use in the present invention comprise compounds having a ester of a perfume alcohol.
• the ester includes at least one free carboxylate group and has the formula
• R is selected from the group consisting of substituted or unsubstituted C1-C30 straight, branched or cyclic alkyl, alkenyl, alkynyl, alkylaryl or aryl group; R' is a perfume alcohol with a boiling point at 760 mm Hg of less than about 300 °C; and n and m are individually an integer of 1 or greater.
• the perfume component may comprise from about 0.01% to about 10% by weight of the fabric enhancement/fabric modification composition.
• the perfume component may further comprise an ester of a perfume alcohol wherein the ester has at least one free carboxylate group in admixture with a fully esterified ester of a perfume alcohol.
• R is selected from the group consisting of substituted or unsubstituted C 1 - C 2 ⁇ straight, branched or cyclic alkyl, alkenyl, alkynyl, alkylaryl, aryl group or ring containing a herteroatom.
• R' is preferably a perfume alcohol selected from the group consisting of geraniol, nerol, phenoxanol, floralol, ⁇ -citronellol, nonadol, cyclohexyl ethanol, phenyl ethanol, phenoxyethanol, isoborneol, fenchol, isocyclogeraniol, 2- phenyl-1-propanol, 3,7-dimethyl-l-octanol, and combinations thereof and the ester is preferably selected from maleate, succinate adipate, phthalate, citrate or pyromellitate esters of the perfume alcohol.
• esters having at least one free carboxylate group are then selected from the group consisting of geranyl succinate, neryl succinate, ( ⁇ -citronellyl) maleate, nonadol maleate, phenoxanyl maleate, (3,7-dimethyl- 1 -octanyl) succinate, (cyclohexylethyl) maleate, floralyl succinate, ( ⁇ -citronellyl) phthalate and (phenylethyl) adipate.
• perfume ingredients and compositions of this invention are the conventional ones known in the art. Selection of any perfume component, or amount of perfume, is based solely on aesthetic considerations. Suitable perfume compounds and compositions can be found in the art including U.S. Pat. Nos.: 4,145,184, Brain and Cummins, issued Mar. 20, 1979; 4,209,417, Whyte, issued June 24, 1980; 4,515,705, Moeddel, issued May 7, 1985; and 4,152,272, Young, issued May 1, 1979, all of said patents being inco ⁇ orated herein by reference. Many of the art recognized perfume compositions are relatively substantive to maximize their odor effect on substrates. However, it is a special advantage of perfume delivery via the perfume/cyclodextrin complexes that nonsubstantive perfumes are also effective.
• the present invention relates to methods for modifiying the surface of fabric by contacting the fabric with a laundry pre-treatment or laundry rinse-added composition thereby enhancing the ability of the fabric to be suitably cleaned during laundring with a detersive surfactant.
• Pre-treatments will effect the current dirt, soils, and grimes as well as providing a modified surface to the fabric for further soil release-type benefits.
• Rinse-added compositions will provided the fabric surface with a layer of fabric substantive material which modifies the surface of the fabric and thereby prevents the full wetting out or absorbtion of greasy/oily dirt, lipophilic grime, and protienaceous soil.
• the present invention specifically relates to methods for preventing the soiling of fabric by grass stains or other proteinaceous soils, the method of which comprises contacting the fabric to be modified with a composition comprising the modified polyamines of the presnt invention without detersive surfactants.
• This method of modifiying fabric for the prevention of grass stain and other proteinaceous soils must be done in the absense of a detersive surfactant.
• the method involves a pre ⁇ treatment of the fabric, more preferably two pre-treatments, most preferably three pre- treatments.
• detersive surfactants can be used to launder the surface modified fabric without loosing the protective benefits against grass stain or proteinaceous soiling.
• the present invention specifically relates to methods for preventing the soiling of fabric by greasy/oily dirt or lipohilic grime, the method of which comprises contacting the fabric to be modified with a composition comprising the modified polyamines of the presnt invention in the presence of a suitable detersive surfactant.
• This method of modifiying fabric for the prevention of greasy /oily dirt or lipohilic grime must be done in the presence of an anionic or nonionic detersive surfactant, or mixtures thereof.
• the method involves a pre-treatment of the fabric, more preferably two pre- treatments, most preferably three pre-treatments. Subsequent to the pre-treatment detersive surfactants can be used to launder the surface modified fabric without loosing the protective benefits against greasy/oily dirt or lipohilic grime.
• a method of inhibiting or reducing fabric discoloration which comprises the steps of contacting said fabrics in the rinse cycle with an aqueous medium containing at least lOppm of a fabric softener composition as defined herein before.
• the fabric softening composition can conveniently be made according to well known processes to the skilled person. An examplary disclosure is given in EP-A-0,668,902.
• the water-soluble or dispersible, bleach stable, modified polyamine fabric surface modifiers useful herein are suitably prepared by the following methods.
• the ethoxylation is conducted in a 2 gallon stirred stainless steel autoclave equipped for temperature measurement and control, pressure measurement, vacuum and inert gas purging, sampling, and for introduction of ethylene oxide as a liquid.
• a ⁇ 20 lb. net cylinder of ethylene oxide (ARC) is set up to deliver ethylene oxide as a liquid by a pump to the autoclave with the cylinder placed on a scale so that the weight change of the cylinder could be monitored.
• PEI polyethyleneimine
• the autoclave is then sealed and purged of air (by applying vacuum to minus 28" Hg followed by pressurization with nitrogen to 250 psia, then venting to atmospheric pressure).
• the autoclave contents are heated to 130 °C while applying vacuum.
• the autoclave is charged with nitrogen to about 250 psia while cooling the autoclave to about 105 °C.
• Ethylene oxide is then added to the autoclave incrementally over time while closely monitoring the autoclave pressure, temperature, and ethylene oxide flow rate.
• the ethylene oxide pump is turned off and cooling is applied to limit any temperature increase resulting from any reaction exotherm.
• the temperature is maintained between 100 and 110 °C while the total pressure is allowed to gradually increase during the course of the reaction.
• the temperature is increased to 110 °C and the autoclave is allowed to stir for an additional hour. At this point, vacuum is applied to remove any residual unreacted ethylene oxide.
• Vacuum is removed and the autoclave is cooled to 105 °C while it is being charged with nitrogen to 250 psia and then vented to ambient pressure.
• the autoclave is charged to 200 psia with nitrogen.
• Ethylene oxide is again added to the autoclave incrementally as before while closely monitoring the autoclave pressure, temperature, and ethylene oxide flow rate while maintaining the temperature between 100 and 1 10 °C and limiting any temperature increases due to reaction exotherm.
• 4500 g of ethylene oxide resulting in a total of 7 moles of ethylene oxide per mole of PEI nitrogen function
• the temperature is increased to 110 °C and the mixture stirred for an additional hour.
• reaction mixture is then collected in nitrogen purged containers and eventually transferred into a 22 L three neck round bottomed flask equipped with heating and agitation.
• the strong alkali catalyst is neutralized by adding 167 g methanesulfonic acid (1.74 moles).
• the reaction mixture is then deodorized by passing about 100 cu. ft. of inert gas (argon or nitrogen) through a gas dispersion frit and through the reaction mixture while agitating and heating the mixture to 130 °C.
• inert gas argon or nitrogen
• the final reaction product is cooled slightly and collected in glass containers purged with nitrogen.
• Dimethyl sulfate (Aldrich, 3.8g, 0.030 mol) is added all at once to the rapidly stirring solution, which is then stoppered and stirred at room temperature overnight.
• acetonitrile is evaporated on the rotary evaporator at ⁇ 60°C, followed by a Kugelrohr apparatus (Aldrich) at ⁇ 80°C to afford ⁇ 220g of the desired material as a dark brown viscous liquid.
• a i 3 C-NMR (D 2 O) spectrum shows the absence of a peak at ⁇ 58ppm corresponding to dimethyl sulfate.
• a 1 H-NMR (D 2 O) spectrum shows the partial shifting of the peak at 2.5ppm (methylenes attached to unquaternized nitrogens) to ⁇ 3.0ppm.
• poly(ethyleneimine) poly(ethyleneimine), MW 1800 which has been ethoxylated to a degree of 7, and -4.7% quaternized with dimethyl sulfate (121.7g, ⁇ 0.32 mol oxidizeable nitrogen, prepared as in Example 3), hydrogen peroxide (Aldrich, 40g of a 50 wt% solution in water, 0.588 mol), and water (109.4g).
• Aldrich 40g of a 50 wt% solution in water, 0.588 mol
• water 109.4g
• polyethyleneimine having a molecular weight of 1800 and ethoxylated to a degree of about 7 ethoxy groups per nitrogen (PEI-1800, E7) (209 g, 0.595 mol nitrogen, prepared as in Example I), and hydrogen peroxide (120 g of a 30 wt % solution in water, 1.06 mol).
• PEI-1800, E7 polyethyleneimine having a molecular weight of 1800 and ethoxylated to a degree of about 7 ethoxy groups per nitrogen
• hydrogen peroxide 120 g of a 30 wt % solution in water, 1.06 mol
• the resonances ascribed to methylene protons adjacent to unoxidized nitrogens have shifted from the original position at -2.5 ppm to ⁇ 3.5 ppm.
• To the reaction solution is added approximately 5 g of 0.5% Pd on alumina pellets, and the solution is allowed to stand at room temperature for approximately 3 days. The solution is tested and found to be negative for peroxide by indicator paper.
• the material as obtained is suitably stored as a 51.1% active solution in water.
• the ethoxylation is conducted in a 2 gallon stirred stainless steel autoclave equipped for temperature measurement and control, pressure measurement, vacuum and inert gas purging, sampling, and for introduction of ethylene oxide as a liquid.
• a ⁇ 20 lb. net cylinder of ethylene oxide (ARC) is set up to deliver ethylene oxide as a liquid by a pump to the autoclave with the cylinder placed on a scale so that the weight change of the cylinder could be monitored.
• PEI polyethyleneimine
• the autoclave is then sealed and purged of air (by applying vacuum to minus 28" Hg followed by pressurization with nitrogen to 250 psia, then venting to atmospheric pressure).
• the autoclave contents are heated to 130 °C while applying vacuum.
• the autoclave is charged with nitrogen to about 250 psia while cooling the autoclave to about 105 °C.
• Ethylene oxide is then added to the autoclave incrementally over time while closely monitoring the autoclave pressure, temperature, and ethylene oxide flow rate.
• the ethylene oxide pump is turned off and cooling is applied to limit any temperature increase resulting from any reaction exotherm.
• the temperature is maintained between 100 and 110 °C while the total pressure is allowed to gradually increase during the course of the reaction.
• the temperature is increased to 110 ° C and the autoclave is allowed to stir for an additional hour. At this point, vacuum is applied to remove any residual unreacted ethylene oxide.
• Vacuum is removed and the autoclave is cooled to 105 °C while it is being charged with nitrogen to 250 psia and then vented to ambient pressure.
• the autoclave is charged to 200 psia with nitrogen.
• Ethylene oxide is again added to the autoclave incrementally as before while closely monitoring the autoclave pressure, temperature, and ethylene oxide flow rate while maintaining the temperature between 100 and 110 °C and limiting any temperature increases due to reaction exotherm.
• 4500 g of ethylene oxide resulting in a total of 7 moles of ethylene oxide per mole of PEI nitrogen function
• the temperature is increased to 110 °C and the mixture stirred for an additional hour.
• reaction mixture is then collected in nitrogen purged containers and eventually transferred into a 22 L three neck round bottomed flask equipped with heating and agitation.
• the strong alkali catalyst is neutralized by adding 167 g methanesulfonic acid (1.74 moles).
• the reaction mixture is then deodorized by passing about 100 cu. ft. of inert gas (argon or nitrogen) through a gas dispersion frit and through the reaction mixture while agitating and heating the mixture to 130 °C.
• inert gas argon or nitrogen
• the final reaction product is cooled slightly and collected in glass containers purged with nitrogen.
• PEI 1200 El 5 and PEI 1200 E20 can be prepared by the above method by adjusting the reaction time and the relative amount of ethylene oxide used in the reaction.
• Dimethyl sulfate (Aldrich, 8.48g, 0.067 mol) is added all at once to the rapidly stirring solution, which is then stoppered and stirred at room temperature overnight.
• acetonitrile is evaporated on the rotary evaporator at ⁇ 60°C, followed by a Kugelrohr apparatus (Aldrich) at ⁇ 80°C to afford ⁇ 220g of the desired material as a dark brown viscous liquid.
• a l 3 C-NMR (D 2 O) spectrum shows the absence of a peak at ⁇ 58ppm corresponding to dimethyl sulfate.
• a iH-NMR (D 2 O) spectrum shows the partial shifting of the peak at 2.5ppm (methylenes attached to unquatemized nitrogens) to ⁇ 3.0ppm.
• a 1H-NMR (D 2 O) spectrum shows the total shifting of the methylene peaks at 2.5-3.0ppm to ⁇ 3.5ppm.
• To the solution is added just enough sodium bisulfite as a 40% water solution to bring the residual peroxide level down to l-5ppm.
• the sodium sulfate which forms causes an aqueous phase to separate which contains salts, but little or no organics.
• the aqueous salt phase is removed and the desired oxidized polyethyleneimine derivative is obtained and stored as a 52% solution in water.
• the compositions used for the methods of the present invention are those laundry detergent pre-soaks, pre-treatments or rinse-added compositions described further herein
• fabric enhancement compositions include the following:
• the following examples include the fabric enhancemnt poly amines in combination with and without surfactants.

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• 1997
  • 1997-04-25 BR BR9710663A patent/BR9710663A/pt not_active Application Discontinuation
  • 1997-04-25 CA CA 2253399 patent/CA2253399A1/en not_active Abandoned
  • 1997-04-25 EP EP97922479A patent/EP0912679A1/de not_active Withdrawn
  • 1997-04-25 WO PCT/US1997/007001 patent/WO1997042289A1/en not_active Application Discontinuation
  • 1997-04-25 JP JP9539961A patent/JPH11509267A/ja active Pending
  • 1997-05-02 AR ARP970101834A patent/AR006956A1/es unknown

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