公开(公告)号：DE1796015A1

公开(公告)日：1972-03-23

申请号：DE1796015

申请日：1968-08-16

Applicant: IBM

Inventor： JOSEPH LAZZARINI DONALD ,  JOHN SABAD JOSEPH ,  TAYLOR WILEY ROBERT

IPC: B41M5/10 ,  C08K13/02 ,  C09D5/23 ,  G11B5/702 ,  B41M5/02

Abstract: 1,218,249. Cellulose ester ink compositions. INTERNATIONAL BUSINESS MACHINES CORP. 4 July, 1968 [21 Aug., 1967], No. 32074/68. Heading C3F. [Also in Divisions H1 and D2] An ink transfer coating composition comprises a resin selected from cellulose acetate-butyrate, cellulose acetatepropionate and half-second or alcohol soluble cellulose butyrate; a plasticizer selected from dioctyl azelate, glyceryl monoricinoleate, and di-(2-ethylhexyl) azelate; a solvent selected from n-propyl acetate, methyl ethyl ketone and ethanol; and a pigment capable of being dispersed in the resin/plasticizer/ solvent system. Specified pigments are carbon black, zinc oxide, magnetic iron oxide, iron and nickel alloys and ferrites. The iron oxide is preferably an alpha acicular oxide of particle size about 1 Á. The composition may be coated on backings of polyester, polyethylene or polypropylene film for use as a typewriter ribbon.

公开(公告)号：IT7925325D0

公开(公告)日：1979-08-29

申请号：IT2532579

申请日：1979-08-29

Applicant: IBM

Inventor： JOHN KENNEY EUGENE ,  JOSEPH LAZZARINI DONALD ,  JOHN WINTERS ROBERT

IPC: B23K35/22 ,  H05K3/28 ,  H05K

Abstract: Screen-printing composition containing an epoxy novolac, a phenoxy polymer, a liquid anhydride, colloidal silica, and a diluent. The composition is useful for coating substrates such as printed circuits and serves as a solder mask.