Poly alpha-1,3-glucan compounds
A poly alpha-1,3-glucan compound comprising: a) poly alpha-1,3-glucan, and b) a functionalized polyolefin; wherein said poly alpha-1,3-glucan compound comprises from 0.5 to 70 weight percent of poly alpha-1,3-glucan, based on the total weight of poly alpha-1,3-glucan (a) and functionalized polyolefin (b) in the poly alpha-1,3-glucan compound and wherein said functionalized polyolefin is grafted onto the poly alpha-1,3-glucan. These poly alpha-1,3-glucan compounds have many uses including films for packaging applications and as elastomers for automotive applications.
1. A poly alpha-1,3-glucan compound comprising:
(a) poly alpha-1,3-glucan, and
(b) an anhydride-grafted ethylene/α-olefin copolymer;
wherein said poly alpha-1,3-glucan compound comprises 0.5 to 70 weight percent of the poly alpha-1,3-glucan based on the total weight of the poly alpha-1,3-glucan and the anhydride-grafted ethylene/α-olefin copolymer in the poly alpha-1,3-glucan compound,
and wherein said anhydride-grafted ethylene/α-olefin copolymer is grafted onto the poly alpha-1,3-glucan.
2. The poly alpha-1,3-glucan compound of claim 1 , wherein the anhydride-grafted ethylene/α-olefin copolymer is a maleic anhydride-grafted ethylene/α-olefin copolymer.
3. The poly alpha-1,3-glucan compound of claim 1 , comprising 5 to 60 weight percent of the poly alpha-1,3-glucan.
4. The poly alpha-1,3-glucan compound of claim 1 , in the form of a film, pellet, or strand.
5. A composition comprising 1 to 70 weight percent of the poly alpha-1,3-glucan compound of claim 1 .
6. The composition of claim 5 , comprising 5 to 60 weight percent of the poly alpha-1,3-glucan compound.
7. The composition of claim 5 , wherein the composition further comprises a polyester or polyolefin.
8. The composition of claim 5 , wherein the composition further comprises a polyamide.
9. The composition of claim 8 , wherein the polyamide is poly(hexamethylene hexanediamide).
10. The composition of claim 8 , wherein the polyamide is poly(hexamethylene dodecanediamide).
11. The composition of claim 8 , wherein the polyamide is poly(hexamethylene decanediamide).
12. The poly alpha-1,3-glucan compound of claim 1 , wherein at least 50% of the glycosidic linkages of the poly alpha-1,3-glucan are alpha-1,3-glycosidic linkages.
13. The poly alpha-1,3-glucan compound of claim 1 , wherein at least 90% of the glycosidic linkages of the poly alpha-1,3-glucan are alpha-1,3-glycosidic linkages.