Microcapsule-Based Compositions for Controlled Release in Various Industries

Publication ID: 24-11857659_0007_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Microcapsule-Based Compositions for Controlled Release in Various Industries,” Published Technical Disclosure No. 24-11857659_0007_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857659_0007_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. 11,857,659.

Summary of the Inventive Concept

The inventive concept leverages the core technology of microcapsules with oil-based cores and polymeric shells coated with cationic polymers, originally designed for rinse-off conditioner compositions, to address unmet needs in agricultural crop protection, biomedical applications, cosmetic skincare products, and pharmaceuticals.

Background and Problem Solved

The original patent disclosed rinse-off conditioner compositions comprising microcapsules with oil-based cores and polymeric shells coated with cationic polymers. However, the technology's potential applications were limited to the cosmetic industry. The new inventive concept addresses the need for controlled release and targeted delivery in various industries, such as agriculture, biomedicine, and pharmaceuticals, where existing solutions often lack efficacy, safety, or sustainability.

Detailed Description of the Inventive Concept

The inventive concept involves adapting the microcapsule technology to create compositions for controlled release of pesticides, fertilizers, therapeutic agents, and active ingredients for skin protection. The microcapsules' oil-based cores and polymeric shells coated with cationic polymers enable sustained release, improved efficacy, and reduced environmental impact. The new claims encompass systems, methods, and compositions for various industries, including agricultural crop protection, biomedical applications, cosmetic skincare products, and pharmaceuticals.

Novelty and Inventive Step

The new claims introduce a novel application of the microcapsule technology, extending its use beyond the cosmetic industry to address specific needs in agriculture, biomedicine, and pharmaceuticals. The inventive step lies in recognizing the potential of this technology to solve problems in these industries and adapting it to create innovative solutions.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include using different types of polymers or cationic coatings, varying the size and shape of the microcapsules, or incorporating additional components to enhance the controlled release mechanism. Variations could also involve adapting the technology for use in other industries, such as food processing or textiles.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in various industries, including agricultural crop protection, biomedical applications, cosmetic skincare products, and pharmaceuticals. The market for controlled release and targeted delivery solutions is substantial, with growing demand for sustainable and effective solutions. The inventive concept's potential to address unmet needs in these industries could lead to significant revenue growth and market share.

CPC Classifications

SectionClassGroup
A A61 A61K8/416
A A61 A61K8/11
A A61 A61K8/31
A A61 A61K8/342
A A61 A61K8/361
A A61 A61K8/737
A A61 A61K8/88
A A61 A61K8/898
A A61 A61K8/922
A A61 A61K8/927
A A61 A61Q5/02
A A61 A61Q5/12
A A61 A61Q19/007
A A61 A61K2800/33
A A61 A61K2800/412
A A61 A61K2800/5426
A A61 A61K2800/624

Field of Art

Chemical engineering and pharmaceutical formulation technologies, specifically focused on microencapsulation techniques for controlled release systems across multiple industries including cosmetics, agriculture, and biomedicine

Person of Ordinary Skill (PHOSITA) Profile

A professional with advanced degree (MS/PhD) in chemical engineering, polymer science, or pharmaceutical sciences, with expertise in microencapsulation technologies, surface chemistry, and controlled release mechanisms

Obviousness Rationale

The PTD demonstrates a straightforward extension of the source patent's core microcapsule technology by applying the established oil-based core and cationic polymer shell design to alternative industrial applications. A PHOSITA would recognize the fundamental microcapsule structure remains consistent across different use cases, with only contextual modifications to the encapsulated material. The core innovation of controlled release through specific microcapsule architecture is directly transferable between cosmetic, agricultural, biomedical, and pharmaceutical domains.

Obvious Combinations & Variations

Source Patent Element
Core-shell microcapsules with oil-based core and polymeric shell coated with cationic polymers
PTD Variation
Adapting microcapsule design for agricultural pesticide controlled release
Obviousness Reasoning
Known technique of transferring microencapsulation technology between industries with predictable results in controlled substance delivery
Source Patent Element
Rinse-off conditioner composition with specific microcapsule concentration ranges
PTD Variation
Biomedical therapeutic agent delivery using identical microcapsule structural principles
Obviousness Reasoning
Finite identified solutions for controlled release suggest obvious adaptation across related technical domains
Source Patent Element
Polymeric shell coating techniques using cationic polymers
PTD Variation
Pharmaceutical targeted drug delivery systems using equivalent microencapsulation methodology
Obviousness Reasoning
Established microencapsulation principles are directly applicable with minimal inventive step when changing encapsulated substance
Source Patent Element
Microcapsule slurry composition with specific weight percentages of components
PTD Variation
Agricultural fertilizer controlled release formulation maintaining identical microcapsule structural parameters
Obviousness Reasoning
Predictable engineering design choice to leverage proven microencapsulation technology across related technical fields
Source Patent Element
Oil-based core microcapsule design for cosmetic conditioning
PTD Variation
Skincare active ingredient protection using identical microcapsule architectural principles
Obviousness Reasoning
Known technique of extending microencapsulation technology with minimal inventive modification
35 U.S.C. § 103 Summary: Pursuant to 35 U.S.C. ยง 103, the variations disclosed in the Published Technical Disclosure (PTD) would have been obvious to a Person Having Ordinary Skill In The Art at the time of invention, as the PTD demonstrates a straightforward technological translation of the core microencapsulation methodology from US Patent 11857659, applying established controlled release principles across multiple industrial domains with no inventive leap beyond ordinary engineering skill.

Original Patent Information

Patent NumberUS 11,857,659
TitleRinse-off conditioner compositions comprising microcapsules
Assignee(s)FIRMENICH SA