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UST959010I4 Expired / Lapsed US ⏱️ 0.0 years remaining

Printing ink resin composition

Assignee: David R. Hansen
•
Filing: 1976-08-19
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Granted: 1977-06-07
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Expires: 1996-08-19
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Abstract

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° 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.

Inventors

  • 👤 David R. Hansen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 11:18
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/106; C08; C08L; C08L53/00; C08L53/02; C08L53/025

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-06-06 1980-12-06 1981-06-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-06-06 1984-12-06 1985-06-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-06-06 1988-12-06 1989-06-07 $7700.00 Window Closed / Lapsed

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