IP Library Granted Patent US 10,800,859
Granted Patent B2
US 10,800,859 · App. 15/533,414 · Granted Oct 13, 2020

Polymeric blend containing poly alpha-1,3-glucan

Inventors: Natnael Behabtu (Wilmington, DE); Sandeep Kumar (Chandigarh, IN); Jayme L. Paullin (Exton, PA)
Assignee: DuPont Industrial Biosciences USA, LLC
C08B37/0009C08J5/18C08K3/013C08K3/014C08K5/005C08L3/02C08L5/00C08L23/04C08L23/10C08L67/04C09D105/00C08K3/015C08L77/00
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Quick Facts
Patent No.
US 10,800,859
App. No.
15/533,414
Granted
Oct 13, 2020
Kind
B2
Abstract

A polymeric blend composition comprising: (a) from about 1 to about 99 wt. % of a polymer; and (b) from about 1 to about 75 wt. % poly alpha-1,3-glucan is disclosed. The addition of alpha-1,3-glucan as a polymer filler can increase the tensile modulus, tensile strength and oxygen barrier properties of the polymeric blend composition.

Claims (54)

1. A polymeric blend composition comprising:

(a) from about 1 to about 99 wt. % of a polymer; and

(b) from about 1 to about 75 wt. % poly alpha-1,3-glucan,

wherein the polymer is polyethylene, polypropylene, ethylene copolymer, polyvinyl butyrate, polylactic acid, polyvinyl alcohol, polyamide, polyether thermoplastic elastomer, polyester, polyether ester, ethylene vinyl alcohol copolymer, starch, or a combination thereof, wherein the tensile strength of the polymeric blend composition is increased between 10% and 100% as compared to the tensile strength of the polymer.

2. A polymeric blend composition comprising:

(a) from about 1 to about 99 wt. % of a polymer; and

(b) from about 1 to about 75 wt. % poly alpha-1,3-glucan,

wherein the tensile modulus of the polymeric blend composition is increased between 10% and 400% as compared to the tensile modulus of the polymer.

3. A polymeric blend composition comprising:

(a) from about 1 to about 99 wt. % of a polymer; and

(b) from about 1 to about 75 wt. % poly alpha-1,3-glucan,

wherein the oxygen transmission rate of the polymeric blend composition is decreased between 10% and less than 100% as compared to the oxygen transmission rate of the polymer.

4. A polymeric blend composition comprising:

a polymer and poly alpha-1,3-glucan,

wherein the polymer is polyethylene and the composition comprises 75 to 95 wt % polyethylene and 5 to 25 wt % poly alpha-1,3-glucan.

5. A polymeric blend composition comprising:

a polymer and poly alpha-1,3-glucan,

wherein the polymer is polypropylene and the composition comprises 35 to 95 wt % polypropylene and 5 to 65 wt % poly alpha-1,3-glucan.

6. A polymeric blend composition comprising:

a polymer and poly alpha-1,3-glucan,

wherein the polymer is polylactic acid and the composition comprises 55 to 95 wt % polylactic acid and 5 to 35 wt % poly alpha-1,3-glucan.

7. A polymeric blend composition comprising:

a polymer and poly alpha-1,3-glucan,

wherein the polymer is polyvinyl alcohol and the composition comprises 45 to 95 wt % polyvinyl alcohol and 5 to 55 wt % poly alpha-1,3-glucan.

8. A polymeric blend composition comprising:

a polymer and poly alpha-1,3-glucan,

wherein the polymer is starch and the composition comprises 85 to 95 wt % starch and 5 to 15 wt % poly alpha-1,3-glucan.

9. A polymeric blend composition comprising:

a polymer and poly alpha-1,3-glucan,

wherein the polymer is ethylene/methacrylic acid copolymer and the composition comprises 60 to 95 wt % ethylene/methacrylic acid copolymer and 5 to 40 wt % poly alpha-1,3-glucan.

10. A polymeric blend composition comprising:

a polymer and poly alpha-1,3-glucan,

wherein the polymer is a polyamide, and the composition comprises 65 to 95 wt % polyamide and 5 to 35 wt % poly alpha-1,3-glucan.

11. A polymeric blend composition comprising:

a polymer and poly alpha-1,3-glucan,

wherein the polymer is a polyether ester, and the composition comprises 55 to 95 wt % polyether ester and 5 to 45 wt % poly alpha-1,3-glucan.

12. A polymeric blend composition comprising:

a polymer and poly alpha-1,3-glucan,

wherein the polymer is a polyester, and the composition comprises 65 to 95 wt % polyester and 5 to 35 wt % poly alpha-1,3-glucan.

13. A polymeric blend composition comprising:

a polymer and poly alpha-1,3-glucan,

wherein the polymer is an ethylene vinyl alcohol copolymer, and the composition comprises 95 to 60 wt % of ethylene vinyl alcohol copolymer and 5 to 40 wt % poly alpha-1,3-glucan.

14. The polymeric blend composition of claim 4 , wherein the composition further comprises one or more additives selected from pigments, surfactants, fillers, stabilizers, UV absorbers, dispersants, flame retardants, antimicrobial agents, or plasticizers.

15. The polymeric blend composition of claim 5 , wherein the composition further comprises one or more additives selected from pigments, surfactants, fillers, stabilizers, UV absorbers, dispersants, flame retardants, antimicrobial agents, or plasticizers.

16. The polymeric blend composition of claim 6 , wherein the composition further comprises one or more additives selected from pigments, surfactants, fillers, stabilizers, UV absorbers, dispersants, flame retardants, antimicrobial agents, or plasticizers.

17. The polymeric blend composition of claim 7 , wherein the composition further comprises one or more additives selected from pigments, surfactants, fillers, stabilizers, UV absorbers, dispersants, flame retardants, antimicrobial agents, or plasticizers.

18. The polymeric blend composition of claim 8 , wherein the composition further comprises one or more additives selected from pigments, surfactants, fillers, stabilizers, UV absorbers, dispersants, flame retardants, antimicrobial agents, or plasticizers.

19. The polymeric blend composition of claim 9 , wherein the composition further comprises one or more additives selected from pigments, surfactants, fillers, stabilizers, UV absorbers, dispersants, flame retardants, antimicrobial agents, or plasticizers.

20. The polymeric blend composition of claim 10 , wherein the composition further comprises one or more additives selected from pigments, surfactants, fillers, stabilizers, UV absorbers, dispersants, flame retardants, antimicrobial agents, or plasticizers.

21. The polymeric blend composition of claim 11 , wherein the composition further comprises one or more additives selected from pigments, surfactants, fillers, stabilizers, UV absorbers, dispersants, flame retardants, antimicrobial agents, or plasticizers.

22. The polymeric blend composition of claim 12 , wherein the composition further comprises one or more additives selected from pigments, surfactants, fillers, stabilizers, UV absorbers, dispersants, flame retardants, antimicrobial agents, or plasticizers.

23. The polymeric blend composition of claim 13 , wherein the composition further comprises one or more additives selected from pigments, surfactants, fillers, stabilizers, UV absorbers, dispersants, flame retardants, antimicrobial agents, or plasticizers.

24. The polymeric blend composition of claim 1 , wherein the polymer is polyvinyl alcohol.

25. The polymeric blend composition of claim 24 , wherein the composition further comprises one or more additives selected from pigments, surfactants, fillers, stabilizers, UV absorbers, dispersants, flame retardants, antimicrobial agents, or plasticizers.

Assignments (6)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 28, 2020
From: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
To: NUTRITION & BIOSCIENCES USA 4, INC.
Reel/Frame 055028/0496 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ENTITY TYPE PREVIOUSLY RECORDED AT REEL: 049879 FRAME: 0043. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Sep 6, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
Reel/Frame 050300/0408 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 26, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
Reel/Frame 049879/0043 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE ADDRESS POSTAL CODE PREVIOUSLY RECORDED AT REEL: 044942 FRAME: 0554. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Feb 20, 2018
From: KUMAR, SANDEEP
To: E I DU PONT INDIA PVT. LTD.
Reel/Frame 047345/0824 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 15, 2018
From: KUMAR, SANDEEP
To: E I DU PONT INDIVA PVT. LTD
Reel/Frame 044942/0554 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 15, 2018
From: BEHABTU, NATNAEL; PAULLIN, JAYME L.
To: E I DU PONT DE NEMOURS AND COMPANY
Reel/Frame 044942/0649 →