Film materials comprising biodegradable and/or sustainable polymeric components
AssigneeClopay Plastic Products Company, Inc.
InventorsFrank He, Linda Lin, Leopoldo V. Cancio, Pai-Chuan Wu
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Abstract
Polymer films comprising blends of biodegradable and/or sustainable polymer are disclosed. These films significantly reduce the amount of petroleum-based polymer in the film, while providing cost savings, processing ease and properties desired by consumers. Polymer films comprising blends of biodegradable and/or sustainable polymers that are microporous and breathable are also disclosed. The polymer films of the present invention may also be laminated to other substrates, such as nonwoven fabrics.
Claims50
A polymer film, comprising a thermoplastic polymer made from a petroleum-based source and a biodegradable or sustainable (Bio-Sus) polymer, wherein the Bio-Sus polymer comprises about 5-30% of said film's polymer composition.
A method of making a polymer film, comprising forming a film comprising a thermoplastic polymer made from a petroleum-based source and a biodegradable or sustainable (Bio-Sus) polymer, wherein the Bio-Sus polymer comprises about 5-30% of said film's polymer composition.
A method of making a film laminate, comprising:
- a) forming a film comprising a thermoplastic polymer made from a petroleum-based source and a biodegradable or sustainable (Bio-Sus) polymer, wherein the Bio-Sus polymer comprises about 5-30% of said film's polymer composition;
- and
- b) bonding said film to another substrate layer to form a laminate.
A polymer film, comprising a polyolefin polymer made from a sustainable source and a biodegradable or sustainable (Bio-Sus) polymer, wherein the Bio-Sus polymer comprises about 5-30% of said film's polymer composition.
Dependencies are inferred from the claim text.