Recycled Polymer Window Frame Composition for Automotive Glazing
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Solution Overview
Problem
The automotive industry faces significant resource consumption and environmental impact due to the high use of virgin materials in manufacturing window units, contributing to plastic pollution and waste management issues, with existing methods not effectively reducing landfilling and the negative impact of plastic use.
Innovation Solution
Incorporating at least 10% recycled polymeric material into the primary part of the window unit's frame, which has the same polymeric base as the virgin material, and using a combination of recycled and virgin materials to minimize virgin material consumption and environmental footprint, while ensuring proper sorting and management of plastic waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If virgin material is used to manufacture the primary part of the window unit frame, then material quality and performance are maintained, but resource consumption increases and environmental footprint worsens
Solution Approach 1:
The patent changes the compositional parameter of the primary part by incorporating recycled polymeric material (at least 10% by weight) instead of using only virgin material. This parameter change allows reduction of virgin material consumption while maintaining the functional requirements of the frame through proper material selection and processing.
Solution Approach 2:
The patent recovers polymeric material from waste streams (pre-consumer or post-consumer recycled material) and reuses it in the manufacturing of new window unit frames. This discarding and recovering principle directly reduces virgin material consumption and landfilling while producing a functional product that meets quality standards.
2Loss of substance
If recycled material is used to reduce virgin material consumption, then resource efficiency improves, but material characteristics may deteriorate
Solution Approach 1:
The patent carefully controls the compositional parameter by specifying that recycled material constitutes at least 10% but not more than 90% of the total polymeric material. This parameter optimization ensures sufficient material characteristics while achieving resource efficiency. The selection of recycled material with the same polymeric base as virgin material also maintains compatibility and performance.
Solution Approach 2:
The patent specifies that the recycled material must have the same polymeric base as the virgin material used in the primary part. This homogeneity principle ensures that the recycled and virgin materials are compatible and maintain consistent material characteristics, avoiding deterioration of performance while reducing virgin material consumption.
3Loss of substance
If recycled material is incorporated into the primary part, then landfilling is reduced and sustainability improves, but sorting and verification complexity increases
Solution Approach 1:
The patent requires that recycled material have the same polymeric base as the virgin material, which simplifies the sorting process by specifying a clear material identity criterion. This homogeneity requirement makes verification more straightforward while still achieving landfilling reduction and sustainability goals.
Solution Approach 2:
The patent introduces certification mechanisms (such as the Mobius loop logo with percentage indication and purchasing documentation) as intermediaries to verify the recycled content. These intermediaries simplify the complexity of sorting and verification by providing standardized, recognizable indicators of recycled material content and source.
Data Source
AI summary
A window unit including a glazing panel, a frame which has a frame profile and encompasses the edge of the glazing panel on at least one peripheral side and includes a plastic primary part, with the primary part having at least 10% in weight of recycled material.