Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1993-05-13
1994-11-01
Krass, Frederick
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
528 27, 528 99, 528100, 528103, 528109, 528112, 528113, 528114, 528115, 528120, 528124, 528327, 528361, 528365, 528407, G08G 5922, C08L 6300
Patent
active
053608771
ABSTRACT:
Epoxy interpenetrating polymer networks having chemical bonds between the interpenetrating networks are prepared from a first and a second polymer network, at least one of which contains an EPRXE resin; a resin having two epoxide functionalities represented by E and a reactive pendant nonepoxide functionality X. The two resin networks are sequentially crosslinked followed by activation of the pendant functionality of the EPRXE resin to form internetwork chemical bonds between the two resin networks affording an epoxy resin with both increased strength and toughness. The invention is also directed to the process of making interpenetrating polymer networks.
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Dismukes John P.
Hwang Jyi-Faa
Baklin Estelle C.
Exxon Research and Engineering Company
Krass Frederick
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