U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Fluorescent pigment concentrates

Patent 5439971 Issued on August 8, 1995. Estimated Expiration Date: Icon_subject August 2, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2119189

2938873

3922232

Process for the preparation of fluorescent brightener formulations which are stable on storage
Patent #: 4466900
Issued on: 08/21/1984
Inventor: Horlacher ,   et al.

Fluorescent pigment concentrates Patent #: 4911830
Issued on: 03/27/1990
Inventor: Bromley, et al.

Inventor

Assignee

Application

No. 284710 filed on 08/02/1994

US Classes:

524/763, Oxygen containing wax as DNRM, e.g., carnauba, montan, ceresin, bees wax, oxidized petroleum wax, etc.106/272, With filler, dye or pigment252/301.16, ORGANIC LUMINESCENT MATERIAL CONTAINING COMPOSITIONS252/301.35Synthetic resin containing

Examiners

Primary: Yoon, Tae H.

Attorney, Agent or Firm

Foreign Patent References

  • 2124384 FR. 09/23/1972
  • 2252387 FR. 06/23/1975
  • 1341602 GB. 12/23/1973

International Classes

C08L 091/06
C09K 011/06

Abstract

Disclosed are low plate-out fluorescent pigment concentrates comprising:(a) a pigment comprising a polymer selected from polyesters, melamine-formaldehyde resins and triazine-formaldehyde resins and a fluorescent dye, and(b) a copolymer of ethylene and carbon monoxide.

Other References

  • "Principles of Polymerization", Molecular Weight. p. 24 by G. Odran, 2nd Edition, 1981, John Wiley & Son
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