Biodegradable coated substrates

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 27/06 (2006.01) C09D 167/04 (2006.01) D06M 15/507 (2006.01) D06N 3/12 (2006.01) D21H 19/28 (2006.01) D21H 23/46 (2006.01)

Patent

CA 2410457

Coated substrates include a coating and a substrate is selected from the group consisting of paper, fabric, thread and yarn. The coating comprises a biodegradable polyhydroxyalkanoate copolymer, wherein the biodegradable polyhydroxyalkanoate copolymer comprises a first randomly repeating monomer unit having structure (I) wherein R1 is H or a C1-2 alkyl, and n is 1 or 2; and a second randomly repeating monomer unit having structure (II) wherein R2 is a C3-19 alkyl or a C3-19 alkenyl; and wherein at least 50 % of the randomly repeating monomer units have the structure of the first randomly repeating monomer unit.

L'invention concerne des substrats enrobés comprenant un revêtement, et un substrat choisi dans le groupe comprenant du papier, du tissu et plusieurs sortes de fils. Le revêtement comprend un copolymère polyhydroxyalkanoate biodégradable contenant un premier motif monomère à répétition aléatoire présentant la structure (I) dans laquelle R?1¿ représente H, ou un alkyle C¿1-2?, et n représente 1 ou 2; et un second motif monomère à répétition aléatoire présentant la structure (II) dans laquelle R?2¿ représente un alkyle C¿3-19? ou un alcényle C¿3-19?. Au moins 50 % des motifs monomères à répétition aléatoire présentant la structure du premier motif monomère susmentionné.

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