Toughened epoxy resin system and a method thereof

Janke, Christopher J; Dorsey, George F; Havens, Stephen J; Lopata, Vincent J

Toughened epoxy resin system and a method thereof

Patent · Mon Mar 09 23:00:00 EST 1998

OSTI ID:871412

Janke, Christopher J ^[1]; Dorsey, George F ^[2]; Havens, Stephen J ^[3]; Lopata, Vincent J ^[4]

Oliver Springs, TN
Farragut, TN
Knoxville, TN
Manitoba, CA

Mixtures of epoxy resins with cationic initiators are curable under high energy ionizing radiation such as electron beam radiation, X-ray radiation, and gamma radiation. The composition of this process consists of an epoxy resin, a cationic initiator such as a diaryliodonium or triarylsulfonium salt of specific anions, and a toughening agent such as a thermoplastic, hydroxy-containing thermoplastic oligomer, epoxy-containing thermoplastic oligomer, reactive flexibilizer, rubber, elastomer, or mixture thereof. Cured compositions have high glass transition temperatures, good mechanical properties, and good toughness. These properties are comparable to those of similar thermally cured epoxies.

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Research Organization:: LOCKHEED MARTIN ENRGY SYST INC

DOE Contract Number:: AC05-84OR21400

Assignee:: Lockheed Martin Energy Systems, Inc. (Oak Ridge, TN)

Patent Number(s):: US 5726216

OSTI ID:: 871412

Country of Publication:: United States

Language:: English

References (13)

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The electron beam-induced cationic polymerization of epoxy resins Crivello, James V.; Fan, Mingxin; Bi, Daoshen Journal of Applied Polymer Science, Vol. 44, Issue 1 https://doi.org/10.1002/app.1992.070440102	journal	January 1992
Cationic polymerization — Iodonium and sulfonium salt photoinitiators Crivello, J. V. Advances in Polymer Science, p. 1 - 48 https://doi.org/10.1007/BFb0024034	book	June 2005
Plasticization and antiplasticization effects of sulphonium salt initiator fragments remaining in cycloaliphatic epoxy resins cured by electron beam and ultraviolet irradiation Udagawa, Atsushi; Yamamoto, Yasuhiko; Inoue, Yoshio Polymer, Vol. 33, Issue 2 https://doi.org/10.1016/0032-3861(92)90983-4	journal	January 1992
Chemistry & technology of UV & EB formulation for coatings, Inks & paints. Vol. 5: Speciality finishes Comyn, J. International Journal of Adhesion and Adhesives, Vol. 15, Issue 1 https://doi.org/10.1016/0143-7496(95)90055-1	journal	January 1995
New high resolution and high sensitivity deep UV, x-ray, and electron beam resists Hatzakis, Michael; Stewart, Kevin J.; Shaw, Jane M. Microelectronic Engineering, Vol. 11, Issue 1-4 https://doi.org/10.1016/0167-9317(90)90156-N	journal	April 1990
Radiation curing of an epoxy-acrylate-6,7-epoxy-3,7-dimethyloctyl acrylate Batten, Richard J.; Davidson, R. Stephen; Wilkinson, Susan A. Journal of Photochemistry and Photobiology A: Chemistry, Vol. 58, Issue 1 https://doi.org/10.1016/1010-6030(91)87102-2	journal	April 1991
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High-Energy-Radiation-Induced Cationic Polymerization of Vinyl Ethers in the Presence of Onium Salt Initiators Sundell, Per-Erik; Jönsson, Sonny; Hult, Anders ACS Symposium Series https://doi.org/10.1021/bk-1990-0417.ch032	book	December 1990
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Application of a new analytical technique of electron distribution calculations to the profile simulation of a high sensitivity negative electron-beam resist Glezos, N. Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures, Vol. 10, Issue 6 https://doi.org/10.1116/1.586335	journal	November 1992
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/522/528/
agent
anions
beam
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cationic
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composition
compositions
consists
curable
cured
diaryliodonium
elastomer
electron
electron beam
energy
energy ionizing
epoxies
epoxy
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flexibilizer
gamma
gamma radiation
glass
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specific
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thermally
thermoplastic
toughened
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toughening agent
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Toughened epoxy resin system and a method thereof

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References (13)

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