Patent ID: 9464187
Filing Date: 2016-10-11
CPC Classification: C08J,C08K,C08L

Claim Text:
1. A composition, comprising a polymer blend of: a polyvinyl chloride (PVC) polymer; a primary plasticizer, optionally biobased; and polyhydroxyalkanoate (PHA) composition comprising one or more biobased non-extractable nonvolatile plasticizing polyhydroxyalkanoate polymers, wherein the PHA composition decreases the migration rate of the primary plasticizer and improves performance of the polymer blend, where the PHA composition includes poly(3-hydroxybutyrate-co-4-hydroxybutyrate) copolymer, poly(3-hydroxybutyrate-co-5-hydroxyvalerate) copolymer; or poly(3-hydroxybutyrate-co-6-hydroxyhexanoate) copolymer.