×

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
First Claim
Patent Images

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.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×