PHENOXYCYCLOTRIPHOSPHAZENE ACTIVE ESTER, HALOGEN-FREE RESIN COMPOSITION AND USES THEREOF
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United States of America Patent
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Issued Date -
Aug 25, 2016
app pub date -
Jun 13, 2014
filing date -
Jun 13, 2014
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Abstract
The present invention discloses a phenoxycyclotriphosphazene active ester, a halogen-free resin composition and uses thereof. The phenoxycyclotriphosphazene active ester comprises at least 65 mol. % of a substance having the following structural formula. The halogen-free resin composition comprises 5-50 parts by weight of a phenoxycyclotriphosphazene active ester, 15-85 parts by weight of a thermosetting resin, 1-35 parts by weight of a curing agent, 0-5 parts by weight of a curing accelerator and 0-100 parts by weight of an inorganic filler. The present invention discloses introducing phenoxycyclotriphosphazene active ester into a thermosetting resin, reacting active esters with thermosetting resins, such as epoxy resin, without producing hydroxy groups, which not only satisfies the requirements on being halogen-free and flame retardancy, but also improves the electrical properties (decreasing and stabilizing Dk and Df) of the system, so as to make non-halogenation of high frequency and high speed substrate materials possible.
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International Classification(s)
- C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....
- C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
- C07F:ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CO....
- C08G:MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN B....
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- H05K:PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAIL....
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