Surface Marker Resin Formulation for Rapid Drying
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Solution Overview
Problem
Current surface marker formulations take too long to dry, which is not compatible with the rapid workflow requirements of assembly and maintenance processes without compromising their hard film formation, adhesion, and solvent resistance.
Innovation Solution
A surface marker resin formulation using a linear aromatic polyester or co-polymer dissolved in a solvent exclusive of naphtha, with an inorganic particulate content of 22-41% by weight, which dries to a hard film in 24 hours and can be applied as a rapid-drying marker pen, achieving dry-to-touch in 60 seconds or less.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional surface marker formulations are used, then hard film formation, adhesion, and solvent resistance are achieved, but drying time is excessive and incompatible with rapid workflow requirements
Solution Approach 1:
The patent changes the chemical composition parameters of the formulation by replacing naphtha-based solvents with alternative solvents (alcohols, esters, ketones, or water) and adjusting the resin type (polyester, acrylic, vinyl, epoxy, or polyurethane). These parameter changes enable significantly reduced drying times (1-60 seconds to dry-to-touch) while maintaining the required hard film formation, adhesion, and solvent resistance properties.
Solution Approach 2:
The patent employs composite material formulations combining specific resin types with alternative solvents and optional additives. These composite formulations achieve rapid drying through the selected solvent-resin combination while the resin matrix ensures hard film formation and adhesion. The composite approach allows optimization of both drying speed and film quality simultaneously.
2Productivity
If drying time is reduced for rapid workflow compatibility, then assembly and maintenance efficiency improve, but film hardness and adhesion may be compromised
Solution Approach 1:
The patent adjusts formulation parameters including resin selection (polyester, acrylic, vinyl, epoxy, or polyurethane), solvent type (alcohols, esters, ketones, or water instead of naphtha), and additive packages to achieve rapid drying (1-60 seconds to dry-to-touch) while ensuring the dried film maintains sufficient hardness and adhesion for tamper indication and torque marking applications.
Solution Approach 2:
The patent accepts that the marker film is a temporary, single-use marking medium that serves its purpose quickly. The formulation is designed for rapid application and drying where the marking function is immediate and temporary, eliminating the need for prolonged curing times while maintaining adequate film strength for its intended brief service life in workflow applications.
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 formulation allows for quick drying and hard film formation on various substrates, maintaining adhesion and solvent resistance, while enabling rapid tamper-indicating markings and torque indication, suitable for industrial applications.
Implementation Method 1
The solvent evaporates to a state of dry-to-touch in a time of between 1 and 60 seconds to mark the surface
Data Source
AI summary
A surface marker resin formulation is provided that includes a linear aromatic polyester or a co-polymer thereof. The resin is dissolved or dispersed in a solvent exclusive of naphtha. An inorganic particulate having an average maximal linear extent of between 10 and 130 microns present from 22 to 41 total weight percent. A process of marking a surface includes two articles being brought into a pre-selected alignment to define a surface. A continuous bead is applied to the surface. The solvent evaporates to a state of dry-to-touch in a time of between less than 60 seconds to mark the surface. The formulation is readily applied from a pen to achieve a controlled bead width. The drying of the formulation by solvent evaporation yields full hardness in 24 hours under standard temperature and pressure as measured at 0% humidity.