Biodegradable laminate, method for producing the same, and molded article
AssigneeKaneka Corporation
InventorsKensuke MURASHIMA, Yasunori OKADA
Life of this patent
Estimating the term…
Abstract
A biodegradable laminate includes in order: a layer of a paper substrate (A); a layer of a first thermoplastic resin (B) containing a poly(3-hydroxyalkanoate) resin as a main component; and a layer of a second thermoplastic resin (C) containing a poly(3-hydroxyalkanoate) resin as a main component. The poly(3-hydroxyalkanoate) resin in the first thermoplastic resin (B) has a weight-average molecular weight of 10×104 to less than 35×104, and the poly(3-hydroxyalkanoate) resin in the second thermoplastic resin (C) has a weight-average molecular weight of 45×104 to less than 70×104.
Claims9
A biodegradable laminate comprising, in the following order:
- a layer of a paper substrate (A);
- a layer of a first thermoplastic resin (B) comprising a poly(3-hydroxyalkanoate) resin as a main component;
- and
- a layer of a second thermoplastic resin (C) comprising a poly(3-hydroxyalkanoate) resin as a main component, wherein
- the poly(3-hydroxyalkanoate) resin in the first thermoplastic resin (B) has a weight-average molecular weight of from 10×104 to less than 35×104, and
- the poly(3-hydroxyalkanoate) resin in the second thermoplastic resin (C) has a weight-average molecular weight of from 45×104 to less than 70×104.
Dependencies are inferred from the claim text.