Method for Improving Efficacy of Surfactants Prevention of Lamellar Mesophases Temperature Stabilization of the Single Phase Region and a Method for Reducing Boundary Surface Tension in Micro-Emulsions Containing Silicone Oils by Means of Additives and Surfactant/Oil Mixtures

Simple SummaryContent extracted from patent full text and abstract with AI.

The patent describes a method for enhancing the effectiveness of surfactants in micro-emulsions containing silicone oils by adding specific block copolymers as additives. These copolymers have a water-soluble segment (Block A) and an oil-soluble segment (Block B), which can be a polyalkylene oxide, polydiene, or polyalkane. This addition improves surfactant efficiency, prevents unwanted phases, stabilizes the temperature range of the single-phase region, and reduces the interfacial tension between water and silicone oil, enabling the use of less surfactant without compromising performance.

Use CasesContent extracted from patent full text and abstract with AI.

• Formulation of advanced personal care and cosmetic products such as shampoos, lotions, sunscreens, and deodorants with silicone oils.
• Improvement of detergents and cleaning agents for household, industrial, or automotive cleaning, providing more effective silicone oil emulsification.
• Textile and leather treatment chemicals with better stability and lower surfactant use.
• Agricultural products (e.g., pesticides, adjuvants) using stable microemulsions for improved delivery and spreading.
• Pharmaceutical formulations utilizing silicone oil microemulsions for more stable delivery systems.
• Lubricants and release agents in manufacturing processes that require stable microemulsions with silicone oils.

BenefitsContent extracted from patent full text and abstract with AI.

• Significantly reduces the required amount of surfactant in microemulsion formulations, leading to cost and environmental benefits.
• Prevents the formation of undesirable lamellar phases, maintaining product clarity and appropriate viscosity.
• Increases the temperature stability window of microemulsions, making products reliable under varying conditions.
• Lowers the interfacial tension, enhancing the ability to mix or emulsify silicone oils and water.
• Enables formulators to use silicone oil-based microemulsions in a wider range of applications without extensive reformulation.
• Improves the efficiency and performance of cleaning, cosmetic, and industrial products containing silicone oils.

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Patent Abstract

Disclosed is a method for improving efficacy of surfactants, prevention of lamellar mesophases, temperature stabilization of the single phase region and a method for reducing boundary surface tension in micro-emulsions containing silicone oils by means of additives and a surfactant/oil mixture. The above effects are achieved, whereby an additive of a block copolymer with a water-soluble block A and a block B which is either a polyalkylene oxide with at least 4 C atoms in the monomer component or a polydiene or a partially or completely hydrogenated polydiene or polyalkane, is added to the micro-emulsion.