18269727. ADHESIVE WITH THERMALLY REVERSIBLE, COVALENT CROSSLINKS simplified abstract (3M INNOVATIVE PROPERTIES COMPANY)
ADHESIVE WITH THERMALLY REVERSIBLE, COVALENT CROSSLINKS
Organization Name
3M INNOVATIVE PROPERTIES COMPANY
Inventor(s)
Bryan T. Whiting of St. Paul MN (US)
Kevin M. Lewandowski of Inver Grove Heights MN (US)
James A. Bergman of St. Paul MN (US)
Peter M. Simone of Woodbury MN (US)
ADHESIVE WITH THERMALLY REVERSIBLE, COVALENT CROSSLINKS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18269727 titled 'ADHESIVE WITH THERMALLY REVERSIBLE, COVALENT CROSSLINKS
Simplified Explanation
The abstract describes a patent application for acrylic pressure-sensitive adhesive compositions crosslinked with a small-molecule crosslinker containing a thermally reversible moiety.
- The small-molecule crosslinker contains a single, thermally reversible moiety represented by the structure (I), where each R is independently -H or -CH, each X is independently C-Calkyl, and each R is independently a C1-C6 alkyl group or an aromatic group.
- Under high temperature conditions, the crosslinks in the adhesive may be broken, allowing for easy coating and dispensing. Upon cooling, the crosslinks reform to create a gelled adhesive network without the need for additional curing steps.
Potential Applications
The technology could be applied in industries such as:
- Packaging
- Automotive
- Electronics
Problems Solved
This technology addresses issues such as:
- Ease of coating and dispensing of pressure-sensitive adhesives
- Simplifying the manufacturing process by eliminating the need for post-processing curing steps
Benefits
The benefits of this technology include:
- Improved efficiency in adhesive application processes
- Cost savings due to reduced processing steps
Potential Commercial Applications
A potential commercial application for this technology could be in the:
- Adhesive manufacturing industry
Possible Prior Art
One possible prior art could be the use of reversible crosslinkers in adhesive compositions to improve their properties.
Unanswered Questions
How does the thermally reversible moiety affect the overall performance of the adhesive composition?
The thermally reversible moiety allows for the temporary breaking and reforming of crosslinks, which can impact the adhesive's viscosity, tackiness, and overall strength.
Are there any limitations to the use of this technology in specific applications or environments?
It is essential to investigate whether extreme temperature conditions or exposure to certain chemicals could affect the performance of the adhesive composition.
Original Abstract Submitted
Acrylic pressure-sensitive adhesive (“PSA”) compositions crosslinked with a small-molecule crosslinker containing a single, thermally reversible moiety represented by the structure (I) (Formula I)). wherein each Ris independently —H or —CH, each X is independently C-Calkyl, and each Ris independently a C1-C6 alkyl group or an aromatic group. Under high temperature conditions the crosslinks may be broken, thus allowing for good coating and dispensing of the PSA. Upon cooling, the crosslinks reform to create a gelled PSA network without need of additional post-processing curing steps.
