Enhanced Antimicrobial Compositions with Modified Clay and Nonionic Triblock Copolymers

Publication ID: 24-11857655_0006_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Antimicrobial Compositions with Modified Clay and Nonionic Triblock Copolymers,” Published Technical Disclosure No. 24-11857655_0006_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857655_0006_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,655.

Summary of the Inventive Concept

The present inventive concept discloses improved antimicrobial compositions featuring modified clay particles with enhanced surface area and attachment of antimicrobial compounds, providing superior antimicrobial efficacy and efficiency.

Background and Problem Solved

The original patent disclosed antimicrobial compositions comprising modified clay particles and nonionic triblock copolymers. However, these compositions had limitations, such as limited surface area for antimicrobial activity and potential impurities affecting efficacy. The present inventive concept addresses these limitations by introducing novel methods for enhancing the antimicrobial properties of modified clay particles, improving the attachment of antimicrobial compounds, and providing more efficient systems for preparing antimicrobial particles.

Detailed Description of the Inventive Concept

The inventive concept comprises a modified clay particle with an antimicrobial compound attached to both tetrahedral and octahedral surface planes, providing improved antimicrobial efficacy. The composition further includes a nonionic triblock copolymer with a molecular weight of about 5000 to 6000. The method for enhancing the antimicrobial properties of modified clay particles involves treating the particles with a secondary antimicrobial compound to increase the surface area available for antimicrobial activity. Additionally, the inventive concept includes a system for preparing antimicrobial particles, comprising a reactor for selectively attaching an antimicrobial compound to the exterior surface plane of a modified clay particle, and a purification unit for removing impurities from the resulting particles.

Novelty and Inventive Step

The new claims introduce novel methods for enhancing the antimicrobial properties of modified clay particles, improving the attachment of antimicrobial compounds, and providing more efficient systems for preparing antimicrobial particles. The inventive concept's novelty lies in the combination of modified clay particles with enhanced surface area, improved attachment of antimicrobial compounds, and the introduction of a purification unit to remove impurities.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include varying the molecular weight of the nonionic triblock copolymer, using different types of antimicrobial compounds, or incorporating additional components to enhance the composition's efficacy. Variations of the system for preparing antimicrobial particles could include using different reactors or purification units, or modifying the process conditions to optimize the attachment of antimicrobial compounds.

Potential Commercial Applications and Market

The enhanced antimicrobial compositions and systems disclosed in the present inventive concept have significant commercial potential in the personal care industry, particularly in the development of more effective and efficient antimicrobial products. The inventive concept's improved antimicrobial efficacy and efficiency could also expand into other industries, such as healthcare, cosmetics, and pharmaceuticals.

CPC Classifications

SectionClassGroup
A A61 A61K8/25
A A61 A61K8/416
A A61 A61K8/86
A A61 A61Q11/00

Field of Art

Personal care and antimicrobial compositions, specifically focusing on modified clay particles with antimicrobial properties. Requires expertise in materials science, surface chemistry, and pharmaceutical formulation with knowledge of clay modification techniques and antimicrobial compound interactions

Person of Ordinary Skill (PHOSITA) Profile

A materials scientist or chemical engineer with advanced degree, experienced in clay particle modification, surface chemistry, and antimicrobial composition design. Familiar with nonionic triblock copolymers, clay structure, and pharmaceutical/personal care product development

Obviousness Rationale

A PHOSITA would recognize the PTD's variations as straightforward extensions of the source patent's core teachings. The modifications represent predictable variations in clay particle antimicrobial composition that involve routine optimization of surface area, antimicrobial compound attachment, and molecular weight adjustments. The technical solutions proposed are logical progressions of existing knowledge in clay-based antimicrobial systems.

Obvious Combinations & Variations

Source Patent Element
Asymmetric 1:1 or 2:1:1 clay particle with antimicrobial compound attached to coordinating cations
PTD Variation
Extending antimicrobial compound attachment to both tetrahedral and octahedral surface planes
Obviousness Reasoning
Predictable variation representing standard surface modification technique to increase antimicrobial coverage and efficacy
Source Patent Element
Nonionic triblock copolymer with molecular weight of 2750-4000
PTD Variation
Adjusting molecular weight range to 4000-6000
Obviousness Reasoning
Routine design choice within known molecular weight parameters, representing incremental optimization of polymer characteristics
Source Patent Element
Antimicrobial composition with clay:antimicrobial ratio of 1:0.001 to 1:0.1
PTD Variation
Introducing secondary antimicrobial compound to increase surface area and activity
Obviousness Reasoning
Known technique for enhancing antimicrobial performance through surface modification and additional compound integration
Source Patent Element
Clay particle antimicrobial composition for personal care applications
PTD Variation
Adding purification unit to remove impurities from antimicrobial particles
Obviousness Reasoning
Standard process improvement representing typical engineering optimization in particle preparation
35 U.S.C. § 103 Summary: Based on US Patent 11857655, the present published technical disclosure demonstrates that the claimed variations in antimicrobial clay particle compositions would have been obvious to a person having ordinary skill in the art at the time of invention. The disclosed modifications represent predictable technical solutions utilizing known surface modification, polymer optimization, and antimicrobial compound attachment techniques within the established technological framework of clay-based antimicrobial systems.

Original Patent Information

Patent NumberUS 11,857,655
TitleAntimicrobial compositions comprising modified clay and nonionic triblock copolymers
Assignee(s)Conopco, Inc.