Patent classifications
C11D3/28
STRIPPING COMPOSITIONS FOR REMOVING PHOTORESISTS FROM SEMICONDUCTOR SUBSTRATES
This disclosure relates to compositions containing 1) at least one water soluble polar aprotic organic solvent; 2) at least one quaternary ammonium hydroxide; 3) at least one compound comprising at least three hydroxyl groups; 4) at least one carboxylic acid; 5) at least one Group II metal cation; 6) at least one copper corrosion inhibitor selected from the group consisting of 6-substituted-2,4-diamino-1,3,5-triazines; and 7) water. The compositions can effectively strip positive or negative-tone resists or resist residues, and be non-corrosive to bumps and underlying metallization materials (such as SnAg, CuNiSn, CuCoCu, CoSn, Ni, Cu, Al, W, Sn, Co, and the like) on a semiconductor substrate.
STRIPPING COMPOSITIONS FOR REMOVING PHOTORESISTS FROM SEMICONDUCTOR SUBSTRATES
This disclosure relates to compositions containing 1) at least one water soluble polar aprotic organic solvent; 2) at least one quaternary ammonium hydroxide; 3) at least one compound comprising at least three hydroxyl groups; 4) at least one carboxylic acid; 5) at least one Group II metal cation; 6) at least one copper corrosion inhibitor selected from the group consisting of 6-substituted-2,4-diamino-1,3,5-triazines; and 7) water. The compositions can effectively strip positive or negative-tone resists or resist residues, and be non-corrosive to bumps and underlying metallization materials (such as SnAg, CuNiSn, CuCoCu, CoSn, Ni, Cu, Al, W, Sn, Co, and the like) on a semiconductor substrate.
Biotech washing agent
A natural biotech washing agent for the environment, which is truly natural and environment friendly, for removing oil stains and dirt on a clothing object and degrading the oil and dirt at the same time without using any powered tools, comprising a composition by percentage weight containing 0.5% marine alkaloids, 6.5-9.5% surfactant and 2.5-3.5% enzymes as active ingredients. The biotech washing agent is truly meant for the environment in that the composition is natural, the cleaning process is natural and energy-saving, the cleaning effect is great, the end products after cleaning is natural and cause no harm to the environment, and no powered tools is required to achieve the cleaning effect. In addition, the wastewater after the washing process of the present invention can continue to provide a cleaning effect to the sewage and the wastewater.
Biotech washing agent
A natural biotech washing agent for the environment, which is truly natural and environment friendly, for removing oil stains and dirt on a clothing object and degrading the oil and dirt at the same time without using any powered tools, comprising a composition by percentage weight containing 0.5% marine alkaloids, 6.5-9.5% surfactant and 2.5-3.5% enzymes as active ingredients. The biotech washing agent is truly meant for the environment in that the composition is natural, the cleaning process is natural and energy-saving, the cleaning effect is great, the end products after cleaning is natural and cause no harm to the environment, and no powered tools is required to achieve the cleaning effect. In addition, the wastewater after the washing process of the present invention can continue to provide a cleaning effect to the sewage and the wastewater.
DISPERSANTS AND DISSOLVERS FOR REMOVAL OF ASPHALTENE DEPOSITS
A cleaning solution for the removal of asphaltene deposits includes a first dispersant comprising a quaternary ammonium compound and a second dispersant comprising a pyridinium compound.
DISPERSANTS AND DISSOLVERS FOR REMOVAL OF ASPHALTENE DEPOSITS
A cleaning solution for the removal of asphaltene deposits includes a first dispersant comprising a quaternary ammonium compound and a second dispersant comprising a pyridinium compound.
DETERGENTS AND CLEANING AGENTS HAVING IMPROVED PERFORMANCE
The present invention relates to the use of 8-hydroxyquinoline sulfonic acids in detergents and cleaning agents for improving the washing or cleaning performance with respect to bleachable stains.
DETERGENTS AND CLEANING AGENTS HAVING IMPROVED PERFORMANCE
The present invention relates to the use of 8-hydroxyquinoline sulfonic acids in detergents and cleaning agents for improving the washing or cleaning performance with respect to bleachable stains.
SOLVENT APPLICATION IN BOTTLE WASH USING AMIDINE BASED FORMULAS
According to the invention, the compositions and methods provide for the complete removal of labels, synthetic glues and/or adhesives from a plurality of surfaces through the use of an aqueous or non-aqueous basic organic solvent and/or an amidine, optionally in combination with surfactants, chelants, acidulants and/or additional bottle wash additives. Beneficially, the compositions and methods are suitable for use at lower temperatures and pH conditions, along with under caustic-free and/or reduced caustic conditions to effectively remove such labels, synthetic glues and/or adhesives from a surface within less than about 30 minutes.
SOLVENT APPLICATION IN BOTTLE WASH USING AMIDINE BASED FORMULAS
According to the invention, the compositions and methods provide for the complete removal of labels, synthetic glues and/or adhesives from a plurality of surfaces through the use of an aqueous or non-aqueous basic organic solvent and/or an amidine, optionally in combination with surfactants, chelants, acidulants and/or additional bottle wash additives. Beneficially, the compositions and methods are suitable for use at lower temperatures and pH conditions, along with under caustic-free and/or reduced caustic conditions to effectively remove such labels, synthetic glues and/or adhesives from a surface within less than about 30 minutes.