USPatentGranted
I4

Printing ink resin composition

Granted 7 Jun 1977 · no office action yet

Assignee:

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Inventors: David R. Hansen · Examiner: · AU 142 · TC 1400

Application
715953
filed 19 Aug 1976
Publication
Not published
not published
Patent· this page
US T959010
granted 7 Jun 1977

Life of the patent

2 dated events
⤢ drag to zoomJul 1976Oct 1976Jan 1977Apr 1977Jul 1977Prosecution
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Abstract

a resin composition for use in printing ink compositions comprises (a) a block copolymer having at least two polymer end blocks A and at least one polymer mid block B, each block A being a non-elastomeric polymer block of a monoalkenyl arene and each block B being an elastomeric hydrogenated polymer block of a conjugated diene; and (b) an end block compatible resin having a softening point above about 100.degree. C, said end block compatible resin being selected from the group consisting of coumarone-indene resins, vinyl toluene-alphamethyl styrene copolymers, alphamethyl styrene homopolymers, polyindene resins and polystyrene resins. The above resin composition when employed in printing ink compositions results in a much improved adhesion of the printing ink to certain wire coatings comprising the above block copolymer along with various fillers, extending oils, polymeric alphaolefins, and fire retardants.

Classifications

4 codes
IPC · International Patent Classification
Section C — Chemistry; metallurgy
  • C08L53/02
  • C09D11/10
USPC · US Patent Classification
260/829260/876.B

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0.8 y
292 days filing → grant
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