Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Reexamination Certificate
2005-07-12
2005-07-12
Smith, Zandra V. (Department: 2877)
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrometer
C356S319000
Reexamination Certificate
active
06917424
ABSTRACT:
An improved process for making pigment dispersions containing a single pigment that match the tinting strength of a standard dispersion. The process employs a faster and more accurate wet measurement technique for analyzing and matching the dispersions to a standard that utilizes the spectral transmittance of the wet dispersions over the visible spectrum.
REFERENCES:
patent: 4279512 (1981-07-01), Tunstall
patent: 4403866 (1983-09-01), Falcoff et al.
patent: 4511251 (1985-04-01), Falcoff et al.
patent: 4692481 (1987-09-01), Kelly
patent: 4887217 (1989-12-01), Sherman et al.
patent: 4890920 (1990-01-01), Niziolek et al.
patent: 4936685 (1990-06-01), Taylor et al.
patent: 5022758 (1991-06-01), Schulz
patent: 6288783 (2001-09-01), Auad
patent: PI9800361-5 (1998-02-01), None
patent: 25 25 701 (1976-12-01), None
patent: 240 075 (1986-10-01), None
patent: 0 732 577 (1996-09-01), None
patent: 2 594 131 (1987-08-01), None
patent: 865 114 (1961-04-01), None
patent: 1 589 705 (1981-05-01), None
patent: 364877 (1973-11-01), None
patent: WO 99/48602 (1999-09-01), None
patent: WO 00/45152 (2000-08-01), None
ANONYMOUS, Colour measuring of wet coating compositions, Research Disclosure—Nov. 1991, RD 33196.
Spehl J. et al., Application of backpropagation nets for color recipe prediction as a nonlinear approximation problem, Jun. 27, 1994, 3336-3341, vol. 5.
International Search Report dated Oct. 21, 2002.
Martino Anthony Joseph
Rodrigues Allan Blase Joseph
Schermacher Ken Stephen
Spahr Douglas E.
Benjamin Steven C.
E. I. du Pont de Nemours and Company
Smith Zandra V.
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