The present invention generally relates to a removal composition and process, particularly useful for cleaning ceria particles and CMP contaminants from microelectronic devices having said particles and CMP contaminants thereon, in particular microelectronic devices having PETEOS, Silicon Nitride, and Poly-Si substrates. In one aspect, the invention provides treatment of the microelectronic substrate having ceria particles thereon utilizing complexing agents free of Sulfur and Phosphorous atoms.

A removal composition and process for cleaning post-chemical mechanical polishing (CMP) contaminants and ceria particles from a microelectronic device having said particles and contaminants thereon. The composition achieves highly efficacious removal of the ceria particles and CMP by-product contaminant material from the surface of the microelectronic device without compromising the low-k dielectric, silicon nitride, or tungsten-containing materials.

A detergent composition comprising a subtilisin variant having the amino acid sequence set forth in SEQ ID NO: 1, and at least one additional ingredient selected from i) bleaches selected from percarbonates, persulphates and organic peracids, ii) aminocarboxylates, or iii) sulphonated polymers, or iv) organophosphoric acids or salts thereof and mixtures thereof is provided. Also provided is a detergent composition comprising a subtilisin variant having the amino acid sequence set forth in SEQ ID NO: 1, wherein the detergent composition is at least partially enveloped in a water soluble or water dispersible package. The compositions exhibit good performance on proteinaceous stains, even when formulated at alkaline pHs. A method of removing proteinaceous stains from surfaces comprising such stains is also provided.

A composition for use in recycled food and beverage containers is disclosed. A mixture of a strong sequestrant, a weak sequestrant, a polymer, an antiscalant and a surfactant is disclosed. Methods directed to using the composition are also disclosed. A composition that cleans and also reduces the defects present on the external surface of containers during a wash cycle is disclosed. The composition may or may not have metallic salts.

Alkaline or neutral viscoelastic cleaning compositions are disclosed which use non polymer thickening agents. According to the invention, cleaning compositions have been developed using viscoelastic surfactants in a neutral, acidic or alkaline cleaning formulations. These provide the dual benefit of thickening as well as an additional cleaning, thereby improving performance. Applicants have also identified several pseudo linking agents which when, used with viscoelastic surfactants provide viscoelasticity in alkaline cleaning compositions.

The invention relates to cleaning deposits of various natures from metal, glass and ceramic surfaces of industrial equipment and can be used for the removal of such deposits, as metal oxides (iron, chromium, nickel, etc.), carbonate and salt deposits, asphalt-tar-paraffin deposits and deposits of an oily nature, deposits of organic and biological nature (bacterial deposits). The proposed solution for removing deposits of different natures comprises hydrogen peroxide, complexing agent, calixarene and water in the following quantitative ratio, wt. %: hydrogen peroxide, 2-90; complexing agent, 3-30; calixarene, 0.01-10; water, the balance. EFFECT: increased degree of cleaning off deposits of various natures with simultaneous reduction of solution aggressiveness to structural materials.

A converter-dissolver composition in an aqueous solution of carbonate or bicarbonate, chelating agents, hydroxide base, and surfactant wetting agent. A mixture of the chelating agents and carbonate or bicarbonate is diluted with deionized water. The mixture reacts for five minutes. The hydroxide base is added to the mixture to form an in-situ reaction with the carbonate or bicarbonate and reacted for another five minutes. The solution pH is adjusted with the chelating agent. The surfactant wetting agent is added. The aqueous solution is heated to 70-230° C. and applied to a surface of oil or gas well and pipeline equipment with metal sulfate scales in a ratio of 3.78 liters of the aqueous solution per 0.45 kilograms of the metal sulfate scales. The aqueous solution reacts for 0.25-1.5 hours to dissolve the metal sulfate scales. The aqueous solution and dissolved metal sulfate scales are flushed from the surface.

A method of laundering fabrics includes: a) contacting a laundry detergent to water to form a wash liquor, wherein the laundry detergent includes detersive surfactant, wherein the wash liquor includes detersive surfactant at a concentration in the range of from 100 ppm to 2500 ppm; b) contacting fabric to the wash liquor, and washing the fabric in the wash liquor; c) after a period of time of at least 6 minutes from contacting the fabric to the wash liquor, introducing calcium cations into the wash liquor to form a calcium enriched wash liquor, wherein the calcium enriched wash liquor includes calcium cations at a concentration in the range of from 20 ppm to 400 ppm; d) washing the fabric in the calcium-enriched wash liquor for a period of time of at least 2 minutes; and e) removing the excess calcium-enriched wash liquor from the fabric, and rinsing the fabric in water.

A disinfecting solution includes hydrogen peroxide at a concentration of from about 1.5% w/w to 8% w/w; at least one readily biodegradable anionic surfactant in a concentration of from about 10% w/w to about 25% w/w; at least one of salicylic acid and salts thereof, in a concentration of from about 1% w/w to about 8% w/w; at least one chelating agent in a concentration of from about 0.005% w/w to about 10% w/w; and at least one low-corrosive non-surfactant sulfonic acid selected from benzenesulfonic acid, benzene disulfonic acid, xylene sulfonic acid, toluene sulfonic acid, cumene sulfonic acid, sulfosalicylic acid, naphthalene mono- or di-sulfonic acid, methane sulfonic acid, and isethionic acid in a concentration of from about 1% w/w to about 15% w/w. The solution is free of acetic acid, furoic acid, phenylacetic acid, cationic surfactants, amphoteric surfactants, aromatic alcohols, halogen acids, phenols, peracid activators, bleaches, and (optionally) benzoic acid.

A concentrate aqueous composition for removing Type I and Type III rouge from various stainless-steel items. The liquid composition comprises oxalic acid, a phosphonic acid, and various amines. The use of an amine has been found to provide synergistic results in removal of the noted types of corrosion from various stainless-steel items that include medical instruments, machines, equipment, pipes, tools, mixing and storage vessels, and the like.