Activated Polymer Composites for Odor Control and Antimicrobial Applications

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Solution Overview

Problem

There is a need for polymer compositions that incorporate chemically- and biologically-active agents, along with processes for fabricating fibers and composites that utilize these agents effectively, particularly for applications requiring odor control, antimicrobial properties, and wound healing.

Innovation Solution

The development of activated polymer compositions comprising molecularly self-assembling materials combined with active agents such as odor control materials, polyelectrolytes, chelating agents, antimicrobial substances, anti-clotting compounds, and wound healing promoters, which are integrated into fibers and fiber composites, and further processed into various articles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If active agents are incorporated into polymer compositions, then functional properties (odor control, antimicrobial activity, wound healing) are improved, but processing difficulty increases due to high filler concentrations

Engineering Contradiction:
Improvefunctional propertiesVSAvoidprocessing difficulty
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent changes the physical and chemical parameters of the polymer matrix and active agents to optimize processing. Specifically, it controls molecular weight, crystallinity, and thermal properties of the polymer to enable effective processing despite high active agent concentrations (0.0001-75 wt%), thereby resolving the contradiction between functional properties and ease of manufacture

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates composite materials by combining polymer matrices with active agents in specific configurations. The composite structure allows high loading of active agents while maintaining processability through careful selection of polymer-active agent interfaces and distribution mechanisms

Inventive Principle:
Principle #40Composite materials

2Reliability

If high concentrations of active agents are used, then functional efficacy is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvefunctional efficacyVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies local quality by distributing active agents non-uniformly within the polymer matrix, concentrating them in specific regions or phases where they are most needed for functional efficacy. This localized distribution maintains high effectiveness while simplifying the overall manufacturing process by reducing the need for complex mixing and processing protocols

Inventive Principle:
Principle #3Local quality

3Adaptability or versatility

If diverse active agents are incorporated, then versatility of applications is improved, but composition complexity increases

Engineering Contradiction:
Improveapplication versatilityVSAvoidcomposition complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent employs a universal polymer matrix platform that can accommodate multiple types of active agents (odor control, antimicrobial, wound healing promoters). This universal base composition allows the same fundamental material system to serve multiple medical and industrial applications, thereby achieving versatility without proportionally increasing composition complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The resulting activated fibers and composites exhibit enhanced properties for odor control, antimicrobial activity, and wound healing, making them suitable for diverse applications including medical and industrial uses while maintaining processability even at high filler concentrations.

Implementation Method 1

an activated polymer composition comprising a molecularly self-assembling (MSA) material and one or more active agents

Methodology Applied
Scientific EffectSelf-assembly: Self-Assembly

Data Source

PatentUS8524796B2Active polymer compositions
Publication Date: 2013.09.03 DOW GLOBAL TECHNOLOGIES LLC
  • US8524796B2 patent drawing
  • US8524796B2 patent drawing
  • US8524796B2 patent drawing

AI summary

The instant invention generally provides an activated polymer composition containing an active agent (i.e., a chemically- or biologically-active agent), an activated fiber comprising the activated polymer composition, an activated-fiber composite comprising the activated fiber and a fiberweb support, processes of fabricating the activated fiber and activated-fiber composition, and an article comprising the activated polymer composition. The instant invention also generally provides a highly filled polymer filler composite comprising a molecularly self-assembling (MSA) material and a mineral filler or conductive filler dispersed in the MSA material, and a process of making and article comprising the highly filled polymer filler composite.