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US 9,175,161 B2Granted
Polymer nanocomposite comprising polylactic acid reinforced with the modified phyllosilicate
AssigneeInstituto TechnolóGico Del Embalajte, Transporte Y LogíStica (Itene)
InventorsSusana Aucejo Romero, María Jordá Beneyto, José María Alonso Soriano, Miriam Gallur Blanca, José María Bermúdez Saldaña, Mercedes Hortal Ramos
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Abstract
Polymer nanocomposite having: a) a polylactic polymer; and b) a modified phyllosilicate composition having a modifying agent which includes hexadecyl trimethyl ammonium cations which are intercalated between the layers of the phyllosilicate; and preparation process of such a polymer nanocomposite. The polymer nanocomposite is particularly useful for packaging, particularly food and drink packaging.
Claims13
A polymer nanocomposite comprising:
- a) a polylactic polymer;
- and
- b) a modified phyllosilicate composition comprising a montmorillonite and a modifying agent including hexadecyl trimethyl ammonium cations which are intercalated between the layers of the phyllosilicate, and further comprising acetylcholine or choline cations as a modifying agent;
- wherein the acetylcholine or choline is present at a concentration comprised from 0.2-0.75 meq/100 g the value of the phyllosilicate cation exchange capacity and the hexadecyl trimethyl ammonium ions are present at a concentration comprised from 5.25-5.80 meq/100 g the value of the phyllosilicate cation exchange capacity;
- and,
- wherein the ratio phyllosilicate composition/polylactic polymer is comprised between 0.5:99.5 and 20:80 weight/weight ratio.
3 more elements
Dependencies are inferred from the claim text.