Methods for manufacturing foamed-thermoplastic films and related products
AssigneeVinxi, L.L.C.
InventorJohn Charles Marrelli
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Abstract
The present invention solves the problems left unaddressed by the prior known processes by providing a method to produce foamed-thermoplastic films of sufficient strength for use in consumer trash-bag applications utilizing high strength thermoplastic resins. Most broadly, the present invention comprises a blown-film bag formed from a material comprising a matrix of foamed polyolefin-based film and gaseous cells formed from a foaming agent.
Claims30
A method for manufacture of a foamed-thermoplastic blown-film bag comprising:
- providing a base resin;
- providing a foaming agent;
- adding the foaming agent to the base resin to form a foaming agent/base resin mixture;
- processing the foaming agent/base resin mixture to form a film;
- and
- forming a bag from the film.
A method for manufacture of a foamed-thermoplastic consumer trash-bag comprising:
- providing a base resin;
- providing a foaming agent;
- adding the foaming agent to the base resin to form a foaming agent/base resin mixture;
- processing the foaming agent/base resin mixture to form a film;
- and
- forming a consumer trash-bag from the film.
A method for manufacturing a foamed planar thermoplastic material comprising the steps of:
- providing a base resin;
- providing a foaming agent;
- adding the foaming agent to the base resin to form a foaming agent/base resin mixture;
- and
- processing the foaming agent/base resin mixture to form a planar thermoplastic material.
A foamed planar thermoplastic member made by a method comprising:
- providing a base resin;
- providing a foaming agent;
- adding the foaming agent to the base resin to form a foaming agent/base resin mixture;
- and
- processing the foaming agent/base resin mixture to form a foamed planar thermoplastic material.
Dependencies are inferred from the claim text.