JPS6477575A - Salicylic acid resin, production thereof and color developer for pressure-sensitive copying paper using the same - Google Patents

Salicylic acid resin, production thereof and color developer for pressure-sensitive copying paper using the same

Info

Publication number
JPS6477575A
JPS6477575A JP62278377A JP27837787A JPS6477575A JP S6477575 A JPS6477575 A JP S6477575A JP 62278377 A JP62278377 A JP 62278377A JP 27837787 A JP27837787 A JP 27837787A JP S6477575 A JPS6477575 A JP S6477575A
Authority
JP
Japan
Prior art keywords
structural unit
salicylic acid
acid resin
alpha
linked
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62278377A
Other languages
Japanese (ja)
Other versions
JP2938454B2 (en
Inventor
Keisaburo Yamaguchi
Yoshimitsu Tanabe
Makoto Asano
Teruhiro Yamaguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Publication of JPS6477575A publication Critical patent/JPS6477575A/en
Application granted granted Critical
Publication of JP2938454B2 publication Critical patent/JP2938454B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Color Printing (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

PURPOSE:To suppress after-yellowing during preservation and upon exposure to sunlight and ensure fastness of developed color images, by using a specified salicylic acid resin in which a specified structural unit is linked by an alpha-carbon atom of other structural unit, the other structural unit itself can be linked to a benzene ring thereof by an alpha-carbon atom, and which has a specified weight average molecular weight, and a multivalent metal salt thereof. CONSTITUTION:A salicylic acid resin in which the amount of a structural unit I of formula I is 5-40mol%, the amount of a structural unit II of formula II is 60-95mol%, the structural unit I is linked by an alpha-carbon atom of the structural unit II, the structural unit II can be linked to a benzene ring of the structural unit II by an alpha-carbon atom and which has a weight average molecular weight of 500-10000, a multivalent metal compound of the resin or a color developer for a pressure-sensitive copying paper comprising the multivalent metal compound as an effective constituent is used. The salicylic acid resin can be obtained by the condensation of salicylic acid with at least one benzyl derivative expressed in formula III in the presence of an acid catalyst.
JP62-278377A 1987-06-04 1987-11-05 Method for producing salicylic acid resin Expired - Lifetime JP2938454B2 (en)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
JP26201986 1986-11-05
JP61-262019 1986-11-05
JP621887 1987-01-16
JP62-6218 1987-01-16
JP1847287 1987-01-30
JP62-18472 1987-01-30
JP1967287 1987-01-31
JP62-19672 1987-01-31
JP11229687 1987-05-11
JP62-112296 1987-05-11
JP62-139026 1987-06-04
JP13902687 1987-06-04

Publications (2)

Publication Number Publication Date
JPS6477575A true JPS6477575A (en) 1989-03-23
JP2938454B2 JP2938454B2 (en) 1999-08-23

Family

ID=

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62261910A (en) * 1986-05-09 1987-11-14 Mitsubishi Electric Corp displacement measuring device
JPS63132857A (en) * 1986-10-17 1988-06-04 バイエル・アクチエンゲゼルシヤフト Hydroxycarboxylic acid derivatives, their preparation and their use in pressure- or heat-sensitive recording materials
JPH0796608A (en) * 1993-06-23 1995-04-11 Canon Inc Inkjet recording method and recording apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62261910A (en) * 1986-05-09 1987-11-14 Mitsubishi Electric Corp displacement measuring device
JPS63132857A (en) * 1986-10-17 1988-06-04 バイエル・アクチエンゲゼルシヤフト Hydroxycarboxylic acid derivatives, their preparation and their use in pressure- or heat-sensitive recording materials
JPH0796608A (en) * 1993-06-23 1995-04-11 Canon Inc Inkjet recording method and recording apparatus

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees