Moisture barrier package

Patent metadata

Field	Value
Publication number	US-11634272-B2
Application number	US-201716471088-A
Country	US
Kind code	B2
Filing date	Dec 18, 2017
Priority date	Dec 19, 2016
Publication date	Apr 25, 2023
Grant date	Apr 25, 2023

Abstract

A packaged moisture sensitive product and a method for packaging a moisture sensitive product. The packaging comprises a primary package, and a secondary 5 package comprising a composite laminate comprising at least one thermoplastic layer and at least one metallic layer.

First claim

The invention claimed is:

1. A packaged moisture sensitive product, said packaged product comprising:
(a) at least one moisture sensitive product;
(b) at least one primary package containing said moisture sensitive product, said primary package being a water soluble pouch made of polyvinyl alcohol; and
(c) at least one secondary package capable of holding said primary package and being made of a composite laminate having a plurality of layers, said layers comprising:
at least one first layer of a thermoplastic polymer, said thermoplastic polymer being polyethylene terephthalate;
at least one second layer of a thermoplastic polymer, said thermoplastic polymer being a low density polyethylene; and
at least one metallic layer disposed between the first layer and the second layer,
wherein the moisture sensitive product is a moisture sensitive agrochemical product comprising a phosphoramidothioate insecticide selected from the group consisting of acephate, chloramine phosphorus, isocarbophos, isofenphos, isofenphos-methyl, methamidophos, phosglycin and propetamphos.

2. The packaged product as claimed in claim 1 , wherein the moisture sensitive agrochemical product comprises acephate.

3. The packaged product as claimed in claim 2 , wherein the moisture sensitive agrochemical product is an acephate 97% dry flowable formulation or an acephate 50%+imidacloprid 1.8% SP formulation.

4. The packaged product as claimed in claim 1 , wherein the second layer is a low density polyethylene layer having a thickness of 85 microns or 100 microns.

5. The packaged product as claimed in claim 1 , wherein the first layer has a thickness of 12 microns, the second layer has a thickness of 85 microns, and the metallic layer has a thickness of 20 microns.

6. A packaged moisture sensitive product, said packaged product comprising:
(a) at least one moisture sensitive product;
(b) at least one primary package containing said moisture sensitive product, said primary package being a water soluble pouch made of polyvinyl alcohol; and
(c) at least one secondary package capable of holding said primary package,
wherein said secondary package is a composite laminate having a plurality of layers, said layers being:
at least a first layer of polyethylene terephthalate;
at least a second layer of polyethylene terephthalate deposited on the first layer of polyethylene terephthalate;
at least one aluminium layer deposited on the second layer of polyethylene terephthalate layer; and
at least one layer of low density polyethylene deposited on the aluminium layer;
wherein the moisture sensitive product is a moisture sensitive agrochemical product comprising a phosphoramidothioate insecticide selected from the group consisting of acephate, chloramine phosphorus, isocarbophos, isofenphos, isofenphos-methyl, methamidophos, phosglycin and propetamphos.

7. The packaged product as claimed in claim 6 , wherein the first layer of polyethylene terephthalate has a thickness of 12 microns, the second layer of polyethylene terephthalate has a thickness of 12 microns, the aluminium layer has a thickness of 8 or 9 microns, and the layer of low density polyethylene has a thickness of 100 microns.

8. A method of packing a moisture sensitive product to prepare the packaged moisture sensitive product of claim 1 , said method comprising:
placing said moisture sensitive product within said first primary package; and
placing said primary package in said secondary package capable of holding said moisture sensitive agrochemical product contained within said primary package.

9. The method as claimed in claim 8 , wherein:
said primary package is a water soluble pouch made of polyvinyl alcohol;
said secondary package is a composite laminate having a plurality of layers, said layers being:
at least one first layer of polyethylene terephthalate;
at least a second layer of polyethylene terephthalate disposed on the first layer of polyethylene terephthalate;
at least one aluminium layer deposited on the second layer of polyethylene terephthalate; and
at least one layer of a low density polyethylene deposited on the aluminium layer.

10. The method as claimed in claim 8 , wherein the moisture sensitive agrochemical product comprises acephate.

11. The method as claimed in claim 10 , wherein the moisture sensitive agrochemical product is an acephate 97% dry flowable formulation or an acephate 50%+imidacloprid 1.8% SP formulation.

12. The packaged product as claimed in claim 6 , wherein the layer of low density polyethylene has a thickness of 100 microns.

Assignees

• Upl Ltd

Inventors

• Shroff Jaidev Rajnikant
• Shroff Vikram Rajnikant

Classifications

• B32B2553/00

  Packaging equipment or accessories not otherwise provided for · CPC title

• B32B2439/46

  Bags · CPC title

• B32B27/322

  comprising halogenated polyolefins, e.g. PTFE · CPC title

• B32B27/28

  comprising synthetic resins not wholly covered by any one of the sub-groups {B32B27/30 - B32B27/42} · CPC title

• B32B27/32

  comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)} · CPC title