Patent · US Active

Dual-layer heat-sensitive imageable elements with a polyvinyl acetal top layer

US7781148B2 · kind B2 · utility

0Cited by

2References

22Claims

0Family size

Assignee

Kodak Graphic Communications GmbH · DE

Inventors

Celin Savariar-Hauck · Badenhausen, DE
Gerhard Hauck · Badenhausen, DE
Horst Glatt · Munich, DE
Dietmar Frank · Northeim, DE

Key dates

Filing date	Aug 1, 2006
Grant date	Aug 24, 2010
Priority date	—
Expiry date	Aug 1, 2026

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41C2210/262
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Thermally imagable elements are described comprising on a substrate with hydrophilic surface (a) a first layer comprising a first polymer soluble or swellable in aqueous alkaline developer and insoluble in organic solvents with low polarity and (b) a second layer comprising a second polymer soluble or swellable in aqueous alkaline developer, wherein the first polymer is different from the second polymer and the second polymer comprises vinyl acetal repeating units and pendant acidic groups selected from COOH, —SO3H, —PO3H2, —PO4H2, aromatic OH and groups having acidic amide or imide groups.

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