Patent classifications
C11D3/3953
Polyelectrolyte complexes
The present invention relates to aqueous compositions of associative polyelectrolyte complexes (PECs), optionally containing surfactants, biocidal agents and/or oxidants, which can provide surface protection to treated articles including reduced soiling tendency, reduced cleaning effort and improved soil repellancy, as well as providing bacteriostatic properties to treated surfaces that thereby gain resistance to water, environmental exposure and microbial challenge. Treatment means and compositions are provided that employ associative polyelectrolyte complexes formed by combining a water soluble cationic first polyelectrolyte with a water soluble second polyelectrolyte bearing groups of opposite charge to the first polyelectrolyte under suitable mixing conditions where the one polyelectrolyte present in molar excess is added in the form of a first aqueous solution during a mixing step to a second aqueous solution comprising the oppositely charged polyelectrolyte present in molar deficiency. Also provided are means to form stable associative polyelectrolyte complexes in aqueous solutions having R values from about 0.10 to 20, including near stoichiometric R values approaching 1, being the ratio of charged groups present on the component polyelectrolytes employed.
Compositions and methods for use in surface decontamination
The disclosure provides compositions and methods for making a colorized solution of an aqueous disinfectant that is both stable in bulk solution and will fade to clear within a predetermined period of time after being applied to a surface, for example as a spray or film. The compositions and methods described here allow an end user to visualize both the extent of coverage and the duration of contact of the disinfectant with the surface, thereby providing more efficient disinfection of the surface.
Compositions and methods for use in surface decontamination
The disclosure provides compositions and methods for making a colorized solution of an aqueous disinfectant that is both stable in bulk solution and will fade to clear within a predetermined period of time after being applied to a surface, for example as a spray or film. The compositions and methods described here allow an end user to visualize both the extent of coverage and the duration of contact of the disinfectant with the surface, thereby providing more efficient disinfection of the surface.
POLYELECTROLYTE COMPLEXES
The present invention relates to aqueous compositions of associative polyelectrolyte complexes (PECs), optionally containing surfactants, biocidal agents and/or oxidants, which can provide surface protection to treated articles including reduced soiling tendency, reduced cleaning effort and improved soil repellancy, as well as providing bacteriostatic properties to treated surfaces that thereby gain resistance to water, environmental exposure and microbial challenge. Treatment means and compositions are provided that employ associative polyelectrolyte complexes formed by combining a water soluble cationic first polyelectrolyte with a water soluble second polyelectrolyte bearing groups of opposite charge to the first polyelectrolyte under suitable mixing conditions where the one polyelectrolyte present in molar excess is added in the form of a first aqueous solution during a mixing step to a second aqueous solution comprising the oppositely charged polyelectrolyte present in molar deficiency. Also provided are means to form stable associative polyelectrolyte complexes in aqueous solutions having R values from about 0.10 to 20, including near stoichiometric R values approaching 1, being the ratio of charged groups present on the component polyelectrolytes employed.
Hair grooming implement cleaning solution with stabilizer
A new composition and method for cleaning hair grooming implements is provided. The composition comprises about 1.1% Sodium Hypochlorite, about 2.5% Sodium Hydroxide, about 0.5% Lithium Perchlorate and about 95.9% water. A concentrated version of the solution may be formed and later diluted for use. The addition of surfactant to the solution increases stability and efficiency.
COMPOSITIONS AND METHODS FOR USE IN SURFACE DECONTAMINATION
The disclosure provides compositions and methods for making a colorized solution of an aqueous disinfectant that is both stable in bulk solution and will fade to clear within a predetermined period of time after being applied to a surface, for example as a spray or film. The compositions and methods described here allow an end user to visualize both the extent of coverage and the duration of contact of the disinfectant with the surface, thereby providing more efficient disinfection of the surface.
WATER SOLUBLE NONWOVEN WEBS FOR PACKAGING HARSH CHEMICALS
Disclosed herein are nonwoven webs and/or unit dose articles comprising a sulfonate modified PVOH fiber forming materials and/or a blend of fiber forming materials comprising polyvinylpyrrolidone and a sulfonate modified PVOH, carboxyl modified PVOH, or both. Also disclosed herein, are said unit dose articles comprising a composition including a harsh chemical.
PRECURSOR POLYELECTROLYTE COMPLEXES COMPOSITIONS
The invention relates to compositions and methods of treatment employing compositions comprising polyelectrolyte complexes. The compositions include a water-soluble first polyelectrolyte bearing a net cationic charge or capable of developing a net cationic charge and a water-soluble second polyelectrolyte bearing a net anionic charge or capable of developing a net anionic charge. The total polyelectrolyte concentration of the first solution is at least 110 millimolar. The composition is free of coacervates, precipitates, latex particles, synthetic block copolymers, silicone copolymers, cross-linked poly(acrylic) and cross-linked water-soluble polyelectrolyte. The composition may be a concentrate, to be diluted prior to use to treat a surface.
SANITIZING AND DISINFECTING SUBSTRATES LOADED WITH HYPOCHLOROUS ACID SOLUTION
Sanitizing and disinfecting substrates of a nonwoven fabric material are loaded with an HOCl solution having a FAC concentration from about 25 ppm to about 750 ppm and a potential of hydrogen (pH) from about 4.5 pH to about 7.5 pH. The substrate may be a synthetic nonwoven fabric laminate having outer layers of one or more Spunbond synthetic fibers and an inner layer of polyester (PET) or pulp. Alternatively, the substrate may be an organic nonwoven fabric formed from one or more layers of cellulosic fibers. The layers may be bonded together by adhesive bonding, chemical bonding or thermal bonding. The substrates may be disposed within a container for storing and subsequently dispensing the substrates. The substrates may be pre-moistened and disposed within the container, or alternatively, disposed within the container and subsequently moistened with the HOCl solution.
CLEANING COMPOSITIONS AND THEIR USE
The present invention is directed towards cleaning compositions containing (A) at least one chelating agent selected from alkali metal salts of methyl glycine diacetic acid (MGDA) and of glutamic acid diacetic acid (GLDA) and of citric acid, (B) an alkali metal salt of glycine or alanine,
in a weight ratio of (A):(B) of from 10:1 to 1:10.