Compostable multilayer structures, methods for manufacture, and

Details Compostable multilayer structures, methods for manufacture, and Compostable multilayer structures, methods for manufacture, and

1995-09-28

1998-12-15

Chen, Vivian

Stock material or miscellaneous articles

Hollow or container type article

Paper containing

428 342, 428 357, 428 366, 428 367, 428212, 428327, 428336, 428339, 428480, 428481, B32B 2308, B32B 2708, B32B 2710, B32B 2736

Patent

active

058493743

ABSTRACT:
A compostable multilayer structure in the form of a film, sheet, laminate, and the like, which comprises a core layer having a first surface and a second surface, a first blocking reducing layer covering the first surface of the core layer, and a second blocking reducing layer covering the second surface of the core layer. The core layer contains a lactic acid residue-containing polymer and has a glass transition temperature (T.sub.g) below about 20.degree. C. The first and second blocking reducing layers include a polymer composition of a hydrolyzable polymer and have a T.sub.g above about 50.degree. C. The multilayer structure can be used for preparing bags and wrappers.

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