Cationic Amphiphilic Polymers for Diverse Industrial Applications

Publication ID: 24-11857634_0002_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Cationic Amphiphilic Polymers for Diverse Industrial Applications,” Published Technical Disclosure No. 24-11857634_0002_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857634_0002_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. 11,857,634.

Summary of the Inventive Concept

This inventive concept expands the application of cationic amphiphilic polymers to novel industries, including textile treatment, environmental remediation, agriculture, cosmetics, and water purification, enabling innovative solutions for complex problems.

Background and Problem Solved

The original patent disclosed cationic amphiphilic polymers for co-delivery of hydrophobic agents and nucleic acids. However, these polymers have untapped potential for addressing various industrial challenges. This inventive concept addresses the limitations of the original patent by applying the core technology to entirely new fields, solving problems such as dirt and stain removal in textiles, heavy metal ion contamination, controlled release of agricultural chemicals, skin moisturizer retention, and water purification.

Detailed Description of the Inventive Concept

The new claims leverage the cationic amphiphilic polymers' unique properties to create novel systems, methods, and compositions for diverse industrial applications. For instance, the polymers can be adapted to bind to textile fibers, attracting and retaining dirt and stains, or used to remove heavy metal ions from contaminated soil or water. In agricultural applications, the polymers can be incorporated into porous matrices to release agricultural chemicals in a controlled manner. In cosmetics, the polymers can interact with skin lipids to attract and retain skin moisturizers. Finally, the polymers can be integrated into membranes for water purification, removing impurities and contaminants from water.

Novelty and Inventive Step

The new claims introduce novel applications and use cases for the cationic amphiphilic polymers, which are non-obvious and unexpected in light of the original patent. The inventive step lies in the adaptation of the polymers' properties to solve specific problems in various industries, demonstrating a clear departure from the original patent's focus on co-delivery of hydrophobic agents and nucleic acids.

Alternative Embodiments and Variations

Alternative embodiments may include modifying the polymer backbone or pendant groups to optimize performance in specific industrial applications. Variations could also involve combining the cationic amphiphilic polymers with other materials or technologies to enhance their effectiveness.

Potential Commercial Applications and Market

This inventive concept has significant commercial potential, as it addresses pressing needs in various industries. The market for textile treatment, environmental remediation, agriculture, cosmetics, and water purification is substantial, with opportunities for partnerships, licensing, and product development.

CPC Classifications

SectionClassGroup
A A61 A61K47/58
A A61 A61K9/1075
A A61 A61K31/65
A A61 A61K47/549
C C12 C12N15/113
C C12 C12N2310/14
C C12 C12N2310/351

Field of Art

Polymer chemistry, drug delivery systems, and materials science, with expertise in cationic amphiphilic polymers and their multifunctional applications across biotechnology, pharmaceutical, and industrial domains

Person of Ordinary Skill (PHOSITA) Profile

A researcher or engineer with advanced degree in polymer chemistry or materials science, familiar with polymer functionalization techniques, capable of understanding structure-property relationships and adapting polymer designs for specific applications

Obviousness Rationale

A PHOSITA would recognize that the cationic amphiphilic polymers disclosed in the source patent inherently possess versatile properties that enable adaptation across multiple industrial domains. The fundamental molecular design of hydrophobic backbones with pendant cationic groups provides a predictable platform for modifying interactions with various substrates. The PTD's variations represent straightforward extensions of the polymer's inherent chemical capabilities, applying known polymer engineering principles to solve specific technical challenges.

Obvious Combinations & Variations

Source Patent Element
Cationic amphiphilic polymers with hydrophobic backbone and pendant cationic groups
PTD Variation
Textile treatment system using polymers to bind and retain dirt and stains
Obviousness Reasoning
Predictable application of polymer's inherent surface interaction properties, representing a routine design modification for a PHOSITA familiar with polymer-substrate interactions
Source Patent Element
Polymers capable of binding and delivering therapeutic compounds
PTD Variation
Agricultural chemical delivery system using controlled release through porous matrices
Obviousness Reasoning
Known technique of adapting polymer delivery mechanisms to different substrate environments, utilizing established principles of controlled release technology
Source Patent Element
Polymers with ability to interact with biological molecules
PTD Variation
Cosmetic composition for interacting with skin lipids and retaining moisturizers
Obviousness Reasoning
Predictable extension of polymer's molecular design to exploit surface interaction capabilities in dermatological applications
Source Patent Element
Cationic polymers with binding capabilities
PTD Variation
Environmental remediation method for removing heavy metal ions
Obviousness Reasoning
Routine application of polymer's ionic interaction properties to solve environmental contamination challenges, representing a standard engineering approach
Source Patent Element
Polymers designed for molecular transport and interaction
PTD Variation
Water purification membrane system for removing impurities
Obviousness Reasoning
Obvious implementation of polymer's inherent molecular filtering and binding capabilities in a membrane-based separation technology
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857634, the variations disclosed herein represent obvious extensions of known cationic amphiphilic polymer technologies. A person having ordinary skill in the art would readily recognize that the fundamental molecular design enables predictable adaptations across diverse industrial domains, rendering the claimed variations obvious and non-patentable under 35 U.S.C. § 103.

Original Patent Information

Patent NumberUS 11,857,634
TitleCationic amphiphilic polymers for codelivery of hydrophobic agents and nucleic acids
Assignee(s)UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION