Patent · US Active

Preparation of norbornane-based PAC ballasts

US8530133B2 · kind B2 · utility

2Cited by
4References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 28, 2011
Grant dateSep 10, 2013
Priority date—
Expiry dateSep 28, 2031

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03F7/40
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Embodiments in accordance with the present invention provide for norbornane-type ballast materials, norbornane-type photoactive compounds derived from such ballast materials and alkali-soluble positive-tone polymer compositions that encompass such norbornane-type photoactive compounds and one of a PBO or PNB resin.

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