Copolymer and photothermographic material containing the same
AssigneeKonica Minolta Medical & Graphic, Inc.
InventorsRie Sakuragi, Osamu Ishige, Kiyoshi Fukusaka
Life of this patent
Estimating the term…
Abstract
Disclosed is a photothermographic material comprising on support a light-insensitive silver salt of an aliphatic carboxylic acid, a light-sensitive silver halide and a reducing agent for silver ions, wherein the photothermographic material further comprises a copolymer comprising a backbone comprising a chain having a monomeric repeating unit, represented by formula (1) and a chain having a monomeric repeating unit, represented by formula (2).
Claims13
A photothermographic material comprising on a support a light-insensitive silver salt of an aliphatic carboxylic acid, a light-sensitive silver halide and a reducing agent for silver ions, wherein the photothermographic material further comprises a copolymer comprising a backbone comprising a chain having a monomeric repeating unit, represented by formula (1) and a chain having a monomeric repeating unit, represented by formula (2):
- wherein in formula (1), m is 2 or 3 and p is an integer of 5 to 1000;
- in formula (2), q is an integer of 5 to 1000, Ra is a hydrogen atom or an alkyl group, and Rb is a hydrogen atom or a substituent.
A photothermographic material comprising on a support a light-insensitive silver salt of an aliphatic carboxylic acid, a light-sensitive silver halide and a reducing agent for silver ions, wherein the photothermographic material further comprises a copolymer comprising a backbone comprising a chain having a monomeric repeating unit, represented by formula (1), a chain having a monomeric repeating unit, represented by formula (3) and a chain having a monomeric repeating unit, represented by formula (4):
- wherein in formula (1), m is 2 or 3 and p is an integer of 5 to 1000;
- in formula (3), R31 and R32, are each a hydrogen atom or a substituent, Ra is a hydrogen atom or an alkyl group and q1 is an integer of 5 to 1000;
- in formula (4), R41 is a hydrogen atom or a substituent, Ra is a hydrogen atom or an alkyl group and q2 is an integer of 5 to 1000.
A photothermographic material comprising on a support a light-insensitive silver salt of an aliphatic carboxylic acid, a light-sensitive silver halide and a reducing agent for silver ions, wherein the photothermographic material further comprises a copolymer comprising a backbone comprising a chain having a monomeric repeating unit, represented by formula (1) and a chain having a monomeric repeating unit, represented by formula (5):
- wherein in formula (1), m is 2 or 3 and p is an integer of 5 to 1000;
- in formula (5), R51 is a hydrogen atom or a substituent, w is an integer of 3 to 300, Ra is a hydrogen atom or an alkyl group, and q3 is an integer of 5 to 1000.
A copolymer comprising a backbone comprising a chain having a monomeric repeating unit, represented by formula (1) and a chain having a monomeric repeating unit, represented by formula (5):
- wherein in formula (1), m is 2 or 3 and p is an integer of 5 to 1000;
- in formula (5), R51 is a hydrogen atom or a substituent, w is an integer of 3 to 300, Ra is a hydrogen atom or an alkyl group, and q3 is an integer of 5 to 1000.
Dependencies are inferred from the claim text.