PHA Compositions Comprising PBS and PBSA and Methods for their Production

• US 20160053111A1
• Filed: 05/01/2015
• Published: 02/25/2016
• Est. Priority Date: 06/26/2009
• Status: Active Grant

• Current Assignee: CJ Cheiljedang Corporation (CJ Group)
• Original Assignee: Metabolix Incorporated
• Inventors: Krishnaswamy, Rajendra K., Sun, Xiudong
• Granted Patent: US 9,650,513 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B32B 2270/00 Resin or rubber layer containing a blend of at least two different polymers
• CPC Class Codes: B32B 2307/54 Yield strength; Tensile strength
• CPC Class Codes: B32B 2307/558 Impact strength, toughness
• CPC Class Codes: B32B 2307/5825 Tear resistant
• CPC Class Codes: B32B 2307/7145 Rot proof, resistant to bacteria, mildew, mould, fungi
• CPC Class Codes: B32B 2307/7163 Biodegradable
• CPC Class Codes: B32B 2307/738 Thermoformability
• CPC Class Codes: B32B 2410/00 Agriculture-related articles
• CPC Class Codes: B32B 2435/00 Closures, end caps, stoppers
• CPC Class Codes: B32B 2439/00 Containers; Receptacles closures therefor B32B2435/00
• CPC Class Codes: B32B 2457/00 Electrical equipment
• CPC Class Codes: B32B 2509/00 Household appliances
• CPC Class Codes: B32B 2535/00 Medical equipment, e.g. bandage, prostheses, catheter medical patches B32B2556/00
• CPC Class Codes: B32B 2553/00 Packaging equipment or accessories not otherwise provided for
• CPC Class Codes: B32B 2555/00 Personal care
• CPC Class Codes: B32B 2605/00 Vehicles
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/18 characterised by the use of special additives
• CPC Class Codes: B32B 27/36 comprising polyesters
• CPC Class Codes: C08G 63/91 Polymers modified by chemical after-treatment
• CPC Class Codes: C08G 63/912 : derived from hydroxycarboxylic acids
• CPC Class Codes: C08J 2367/02 : Polyesters derived from dicarboxylic acids and dihydroxy compounds; C08J2367/06 takes precedence
• CPC Class Codes: C08J 2367/04 : Polyesters derived from hydroxy carboxylic acids, e.g. lactones C08J2367/06 takes precedence
• CPC Class Codes: C08J 2467/04 : Polyesters derived from hydroxy carboxylic acids, e.g. lactones C08J2467/06 takes precedence
• CPC Class Codes: C08J 5/18 : Manufacture of films or sheets
• CPC Class Codes: C08L 67/02 : Polyesters derived from dicarboxylic acids and dihydroxy compounds C08L67/06 takes precedence
• CPC Class Codes: C08L 67/04 : Polyesters derived from hydroxycarboxylic acids, e.g. lactones C08L67/06 takes precedence
• CPC Class Codes: C08L 67/08 : Polyesters modified with higher fatty oils or their acids, or with resins or resin acids
• CPC Class Codes: Y10T 428/31794 : Of cross-linked polyester

Abstract

Compositions of PHAs with PBS and/or PBSA are described and methods of making the same.

Claims

1-19. -19. (canceled)

20. A composition, comprising:

a blend of a first component and a second component,

wherein the first component includes a poly(butylene succinate) (PBS) or a polybutylene succinate adipate (PBSA), and the second component includes a polyhydroxyalkanoate (PHA),

wherein the content of the first component in the blend is 50% or greater by weight.

21. The composition of claim 20, wherein the blend of a first component and a second component is an unreacted blend.

22. The composition of claim 20, wherein the content of the first component in the blend is between 50% and 80% by weight.

23. The composition of claim 22, wherein the content of the first component in the blend is between 50% and 65% by weight.

24. The composition of claim 20, wherein the PHA is a PHA copolymer.

25. The composition of claim 24, wherein the PHA copolymer is a copolymer of a 3-hydroxyalkanoate, a 4-hydroxyalkanoate, or a 5-hydroxyalkanoate.

26. The composition of claim 25, wherein the PHA copolymer is a copolymer of a 3-hydroxybutyrate (PHB copolymer).

27. The composition of claim 26, wherein the PHA copolymer is a Type 1 PHB copolymer.

28. The composition of claim 26, wherein the PHA copolymer is a Type 2 PHB copolymer.

29. The composition of claim 26, wherein the PHA copolymer is a copolymer of a poly(3-hydroxybutyrate-co-3-hydroxypropionate), a poly(3-hydroxybutyrate-co-4-hydroxybutyrate), a poly(3-hydroxybutyrate-co-4-hydroxyvalerate), a poly(3-hydroxybutyrate-co-3-hydroxyvalerate), a poly(3-hydroxybutyrate-co-3-hydroxyhexanoate), or a poly(3-hydroxybutyrate-co-5-hydroxyvalerate).

30. The composition of claim 20, wherein the second component is a PHA copolymer.

31. The composition of claim 20, wherein the first component is one of PBS and PBSA, or a blend thereof.

32. The composition of claim 20, wherein the PHA is a PHA homopolymer.

33. The composition of claim 32, wherein the PHA homopolymer is a poly(3-hydroxyalkanoate, a poly(4-hydroxyalkanoate), or a poly(5-hydroxyalkanoate).

34. The composition of claim 33, wherein the PHA homopolymer is a poly(3-hydroxybutyrate).

35. The composition of claim 20, wherein the second component is a PHA homopolymer.

36. An article, comprising the composition of claim 20.

37. The article of claim 36, wherein the article is a film.