Method of making thermally removable polymeric encapsulants
Abstract
A method of making a thermally-removable encapsulant by heating a mixture of at least one bis(maleimide) compound and at least one monomeric tris(furan) or tetrakis(furan) compound at temperatures from above room temperature to less than approximately 90.degree. C. to form a gel and cooling the gel to form the thermally-removable encapsulant. The encapsulant can be easily removed within approximately an hour by heating to temperatures greater than approximately 90.degree. C., preferably in a polar solvent. The encapsulant can be used in protecting electronic components that may require subsequent removal of the encapsulant for component repair, modification or quality control.
- Inventors:
-
- Santa Fe, NM
- Albuquerque, NM
- late of Albuquerque, NM
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- OSTI Identifier:
- 873916
- Patent Number(s):
- 6271335
- Assignee:
- Sandia Corporation (Albuquerque, NM)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; thermally; removable; polymeric; encapsulants; thermally-removable; encapsulant; heating; mixture; bis; maleimide; compound; monomeric; tris; furan; tetrakis; temperatures; temperature; approximately; 90; degree; form; cooling; easily; removed; hour; preferably; polar; solvent; protecting; electronic; components; require; subsequent; removal; component; repair; modification; quality; control; polar solvent; easily removed; electronic components; subsequent removal; /528/264/525/
Citation Formats
Small, James H, Loy, Douglas A, Wheeler, David R, McElhanon, James R, and Saunders, Randall S. Method of making thermally removable polymeric encapsulants. United States: N. p., 2001.
Web.
Small, James H, Loy, Douglas A, Wheeler, David R, McElhanon, James R, & Saunders, Randall S. Method of making thermally removable polymeric encapsulants. United States.
Small, James H, Loy, Douglas A, Wheeler, David R, McElhanon, James R, and Saunders, Randall S. Mon .
"Method of making thermally removable polymeric encapsulants". United States. https://www.osti.gov/servlets/purl/873916.
@article{osti_873916,
title = {Method of making thermally removable polymeric encapsulants},
author = {Small, James H and Loy, Douglas A and Wheeler, David R and McElhanon, James R and Saunders, Randall S},
abstractNote = {A method of making a thermally-removable encapsulant by heating a mixture of at least one bis(maleimide) compound and at least one monomeric tris(furan) or tetrakis(furan) compound at temperatures from above room temperature to less than approximately 90.degree. C. to form a gel and cooling the gel to form the thermally-removable encapsulant. The encapsulant can be easily removed within approximately an hour by heating to temperatures greater than approximately 90.degree. C., preferably in a polar solvent. The encapsulant can be used in protecting electronic components that may require subsequent removal of the encapsulant for component repair, modification or quality control.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2001},
month = {Mon Jan 01 00:00:00 EST 2001}
}
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Works referenced in this record:
The application of the Diels-Alder reaction to polymers bearing furan moieties. 1. Reactions with maleimides
journal, August 1997
- Laita, H.; Boufi, S.; Gandini, A.
- European Polymer Journal, Vol. 33, Issue 8