Patent · US Active

Method for producing a film having luminescent particles

US9816027B2 · kind B2 · utility

0Cited by

17References

7Claims

0Family size

Assignee

SEKISUI CHEMICAL CO., LTD. · JP

Inventors

Michael Labrot · Aachen, DE
Monique Elmer · Emsdetten, DE
Jean Sablayrolles · Survilliers, FR
Frédéric Clabau · Paris, FR

Key dates

Filing date	Feb 10, 2012
Grant date	Nov 14, 2017
Priority date	—
Expiry date	Feb 5, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31616
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A method for producing a film having luminescent particles is described. The method has steps a) mixing a thermoplastic and a luminescent pigment containing a hydroxyalkyl terephthalate of the formulate: R1—COO—P(OH)x-COO—R2 and obtaining a thermoplastic mixture; and b) homogenizing the thermoplastic mixture to 150° C. to 200° C. in an extruder, by way of an extrusion nozzle, and obtaining a thermoplastic film.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.