Roylance, Abrams, Berdo & Farley
Pressure-sensitive microcapsules containing alkylnaphthalene solvent and process for their production
 Pressure-sensitive microcapsules containing a solvent composition for use in carbonless copy systems for use in the absence of a halogenated solvent consisting essentially of a combination of a mono-alkyl naphthalene, wherein said alkyl group contains from 1 to 3 carbon atoms per molecule and a di-alkyl naphthalene, wherein each of said alkyl groups in said di-alkyl naphthalene contains from 2 to 4 carbon atoms per molecule, said mono-alkyl naphthalene being present in an amount between about 25 and about 40 percent by weight of the alkylated naphthalenes present in the solvent, and an isocyanate cross-linking agent. 
Champion International Corporation
Y B Y B Y
Y10S B01J Y10T B41M Y10T
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David N. Cheng H.
Vincent Chang