Solvent compositions for use in pressure-sensitive copying paper
AssigneeThe Wiggins Teape Group Limited
InventorsIvan Sheiham, Margaret P. Templey
Life of this patent
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Abstract
A solvent composition for use in pressure-sensitive copying papers comprises a mixture of vegetable oil and a mono- or di-functional ester of a fatty acid or other acid composed of a non-aromatic saturated or unsaturated straight or branched hydrocarbon chain and a single terminal carboxyl group.
Claims10
A solvent composition for use in pressure-sensitive copying paper and comprising a solvating combination of (i) a vegetable oil and (ii) a proportion of a mono- or di-functional ester of a non-aromatic mono-carboxylic acid having a saturated or unsaturated straight or branched hydrocarbon chain with at least three carbon atoms in the chain.
A solvent composition for use in pressure-sensitive copying paper comprising a solvating combination of (i) at least one vegetable oil and (ii) at least one mono- or di-functional ester of a non-aromatic mono-carboxylic acid having a saturated or unsaturated straight or branched hydrocarbon chain with at least three carbon atoms in the chain, the combination of vegetable oil(s) and mono- or di-functional ester(s) together being effective for solvating a chromogenic material.
Dependencies are inferred from the claim text.