Back to results
US 5,395,616 AGranted
Packaging for liquid products
AssigneeMay & Baker Limited
InventorsDavid B. Edwards, William J. McCarthy, Alan J. Aldred, Anthony D. Jackman
Life of this patent
Estimating the term…
Abstract
A package for a liquid, to be dissolved or dispersed in water, contained in an envelope of water soluble or dispersible material, the envelope having a flexible wall and a water soluble or water dispersible heat seal.
Claims22
A cold water soluble sealed envelope containing a non-aqueous liquid, said liquid comprising an agrochemical, said sealed envelope being made by a method comprising the steps of:
- a) selecting a water soluble open top envelope having a flexible wall which is insoluble in the liquid;
- b) introducing the non-aqueous liquid into the open top envelope;
- and
- c) sealing the open top envelope containing the non-aqueous liquid at a relative humidity of from about 15-85% and at a sealing temperature, dwell time and sealing pressure effective to provide a seal which is cold water soluble;
- and wherein the envelope and seal are capable of withstanding abuse to which the envelope and seal may be subjected during filling, handling or storage.
2 more elements
Dependencies are inferred from the claim text.