Binders for printing inks

• US 3,929,701 A
• Filed: 09/16/1974
• Issued: 12/30/1975
• Est. Priority Date: 09/16/1974
• Status: Expired due to Term

• Current Assignee: AKZO NV (Nouryon BV)
• Original Assignee: Claude E. Hall, Louis L. Stalvey
• Inventors: Hall, Claude E., Stalvey, Louis L.
• Primary Examiner(s): Jacobs, Lewis T.
• Application Number:
  US05/506,484
• Time in Patent Office: 470 Days
• Field of Search: 260/23ST,23S,88.1R,27R,22CQ,29.6R 106/28
• US Class Current: 524/145
• CPC Class Codes: C09D 11/106 containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

Abstract

Binders for printing inks comprising an ester of a styrene allyl alcohol copolymer.

Claims

1. A BINDER FOR WATER BASE FLEXOGRAPHIC OR GRAVURE INKS COMPRISING A MAJOR AMOUNT OF AN ESTER OF A COPOLYMER OF AN ETHYLENICALLY UNSATURATED ALCOHOL AND A STYRENE MONOMER;

SAID ESTERIFIED COPOLYMER BEING A COPOLYMER OF;

A. AN ETHYLENICALLY UNSATURATED ALCOHOL SELECTED FROM THE GROUP CONSISTING OF ALLYL ALCOHOL, METHALLYL ALCOHOL AND MIXTURE THEREOF, AND B. STYRENE MONOMER SELECTED FROM THE GROUP CONSISTING OF STYRENE, ALPHA- AND BETA-SUBSTITUTED STYRENE, MONO- AND DI-ALKYL, CHLORO AND CHLOROALKYL STYRENE AND MIXTURE THEREOF;

WHEREIN SAID COPOLYMER BEFORE ESTERIFICATION HAS A HYDROXYL GROUP CONTENT OF FROM ABOUT 4-7.5 PERCENT BY WEIGHT;

FROM 50 TO 85 PERCENT OF SAID HYDROXYL GROUPS BEING ESTERIFIED WITH C. A ROSIN MATERIAL, AND FROM 1 TO 10 PERCENT OF SAID HYDROXYL GROUPS BEING ESTERIFIED WITH D. A MODIFIED DRYING OIL;

SAID BINDER HAVING AN ACID NUMBER OF FROM 70 TO 225 AND A MELTING POINT OF FROM ABOUT 115* TO 160*C.

2. an antifoaming agent or mixture of anti-foaming agents.

3. A resinous binder according to claiM 2 wherein said binder additionally contains an antifoaming agent.

4. A binder according to claim 2 wherein the rosin material is fumaric acid fortified tall oil rosin, a fumaric fortified gum rosin, or mixtures thereof.

5. A resinous binder according to claim 2 which additionally contains tributyl phosphate as an antifoaming agent.

6. A binder for water base flexographic or gravure inks consisting essentially of

7. A binder according to claim 6 wherein the anti-foaming agent is tributylphosphate.

8. A ink vehicle for flexographic and gravure printing inks comprising water in an amount of from about 45 percent to about 53 percent by weight;

the binder of claim 1 in an amount of from about 15 percent to about 22 percent, and a volatile base in an amount to provide a pH of from about 7.5 to 8.5.

9. A printing ink for gravure and flexographic printing comprising the ink vehicle of claim 4 in an amount of from about 55 to 70 percent by weight, water in an amount of from about 15 to 30 percent, and pigment in an amount of from about 2 to 60 percent by weight.