Patent · US Expired

Imaging member containing switchable polymers and method for use

US6146812A · kind A · utility

21Cited by
13References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 17, 1999
Grant dateNov 14, 2000
Priority date
Expiry dateSep 17, 2019

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S430/145
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

An imaging member is prepared by applying to a support a heat-sensitive imaging layer which comprises at least one heat-sensitive polymer capable of undergoing transformation from a hydrophilic to hydrophobic state or hydrophobic to hydrophilic state, wherein the transformation occurs such that the activation energy Ea and the Arrhenius pre-exponential factor A associated with the transformation simultaneously fulfill the relationships: ln (A).gtoreq.0.4 Ea+8.84 and ln (A).ltoreq.1.69 Ea-14.37. The imaging member is useful in processless thermal lithographic printing.

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