Photographic element containing non-diffusing polymeric development accelerators

Abstract

Abstract A POLYESTER IS DISCLOSED WHICH COMPRISES THE CONDENSATION PRODUCT OF: (A) A BIFUNCTIONAL COMPOUND HAVING THE FORMULA X-CO-R-CO-X1 WHEREIN R IS AN ALKYLENE GROUP, A THIA-ALKYLENE GROUP OR A DITHIA-ALKYLENE GROUP AND X AND X1 ARE INDEPENDENTLY SELECTED AND ARE -OH, -OR1 WHERE R1 IS AN ALKYL GROUP, OR A HALOGEN, OR ARE TAKEN TOGETHER AND CONSTITUTE AN ETHER OXYGEN BRIDGE COMPLETING A HETEROCYCLIC RING; (B) A THIA-ALKYLENE GLYCOL HAVING AN ALKYLENE CHAIN OF 5 TO 24 ATOMS INCLUDING 1 OR 2 THIOETHER SULFUR ATOMS OR AN OXATHIA-ALKYLENE CHAIN OF 2 TO 24 ATOMS WHICH CONTAINS AT LEAST ONE OXYGEN ATOM AND AT LEAST TWO SULFUR ATOMS, EACH OXYGEN ATOM AND SULFUR ATOM BEING BIVALENTLY LINKED TO ADJOINING CARBON ATOMS; AND (C) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF: (1) GLYCOLS OF THE FORMULA HO-R2-OH WHEREIN R2 IS AN ARYLENEDIALKYLENE GROUP, AN ARYLENEBIS(THIA-ALKYLENE) GROUP OR AN AZAALKYLENE GROUP OF 5-11 ATOMS INCLUDING AT LEAST ONE NITROGEN ATOM HAVING A (R3,R4-PHENYL)-CH2- GROUP ATTACHED THERETO, R3 AND R4 BEING INDEPENDENTLY SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, LOWER ALKYL OF 1-5 CARBON ATOMS, LOWER ALKOXY OF 1-5 CARBON AND HALOGEN; AND (2) A SECOND BIFUNCTIONAL COMPOUND HAVING THE FORMULA: X-CO-R5-CO-X1 WHEREIN R5 REPRESENTS THE BIVALENT GROUP: -(CH2)P-O-(R3,R4-1,4-PHENYLENE)-O-(CH2)P- X, X1, R3 AND R4 ARE AS DESCRIBED ABOVE AND P IS AN INTEGER OF FROM 1 TO 6.

Inventors

• 👤 L Minsk
• 👤 J Staples

Bibliographic Details