Patent · US Active

Photochromic polyurethane laminate

US9440419B2 · kind B2 · utility

2Cited by
5References
28Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 15, 2013
Grant dateSep 13, 2016
Priority date—
Expiry dateMar 15, 2033

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31554
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Photochromic polyurethane laminates and methods for the formation of same wherein a photochromic polyurethane layer of the laminate is interposed between two primer coated transparent resin sheets.

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