A multi-layer polymeric film
AssigneeBilcare Limited
InventorsSanjeev Dattatray KULKARNI, Mahendra Mukund UMRANI, Nikhil Hiraman JADHAV, Praful NAIK, Somenath MUKHERJEE
Life of this patent
Estimating the term…
Abstract
The present disclosure provides a multilayer formable barrier film having a thickness ranging from 100 to 750 micron comprising. The film comprises i) a substrate layer comprising a) a PVC film, optionally laminated with a PE film and, b) at least one layer of PVDC as a barrier layer; and ii) a base layer comprising a) a PVC film, optionally laminated with a PE film and, b) at least one layer of PVDC as a barrier layer, said base layer laminated to said substrate layer through an adhesive coat.
Claims10
A multilayer formable barrier film having a thickness ranging from 100 to 750 micron comprising:
- i. a substrate layer having a thickness ranging from 50 to 500 micron, said substrate layer comprises:
- i) a polyvinyl chloride (PVC) film having a thickness ranging from 50 to 200, optionally laminated with a polyethylene (PE) film having a thickness ranging from 10 to 100 and ii) at least one poly(vinylidene dichloride)(PVDC) layer having a thickness ranging from 10 to 100 micron;
- and
- ii. a base layer having a thickness ranging from 50 to 250 micron laminated to said substrate layer through an adhesive coat, said base layer comprises i) a polyvinyl chloride (PVC) film having a thickness ranging from 50 to 200, optionally laminated with a polyethylene (PE) film having a thickness ranging from 10 to 100 and ii) at least one poly(vinylidene dichloride)(PVDC) layer having a thickness ranging from 10 to 100 micron.
A process for the preparation of a multilayer formable barrier film having a thickness in the range of 100 to 750 micron;
- said process comprises the following steps:
- providing a substrate layer of thickness 50 to 500 micron by coating a polyvinyl chloride (PVC) film of thickness ranging from 50 to 200 with at least one layer of poly(vinylidene dichloride)(PVDC) of thickness ranging from 10 to 100 micron using an adhesive coat having a thickness ranging from 0.1 to 10 micron,
- obtaining a base layer of thickness 50 to 250 micron by coating a (polyvinyl chloride) PVC film of thickness ranging from 50 to 200 with at least one layer of poly(vinylidene dichloride)(PVDC) of thickness ranging from 10 to 100 micron using an adhesive coat having a thickness ranging from 0.1 to 10 micron, and
- laminating said substrate layer and said base layer using an adhesive coat having a thickness ranging from 0.1 to 10 micron multilayer formable barrier film.
Dependencies are inferred from the claim text.