Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1990-01-30
1990-09-18
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524244, 524265, 524481, 524366, 524370, 524375, 524376, 524288, 524289, 524290, 524292, 524383, 524391, 524385, 524482, 524487, 524488, 524523, 524533, 525474, 525477, C08K 320
Patent
active
049579606
ABSTRACT:
An encapsulating composition for electronic devices comprises a curable material such as a silicone resin and an ion scavenger compound selected from certain calixarene or oxacalixarene compounds in which at least half of the phenolic groups have been substituted by specific groups and certain silacrown compounds. Exemplary ion scavenger compounds include ##STR1## the tetraethyl acetate of 7, 13, 19, 25-tetra-tertbutyl-27, 28, 29, 30-tetrahydroxy-2,3-dihomo-3-oxacalix-4-arene and 1,1-dimethasila-17-crown-6.
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Guthrie John
Harris Stephen J.
MacManus Marueen G.
Rooney John M.
Woods John G.
Loctite (Ireland) Ltd.
Marquis Melvyn I.
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