Stock material or miscellaneous articles – Composite – Of polyester
Patent
1978-08-01
1981-01-13
Willis, Jr., P. E.
Stock material or miscellaneous articles
Composite
Of polyester
25230128, 252543, 427158, 428 90, 428265, 428290, 548224, B32B 2736, D06L 312, C11D 944
Patent
active
042450071
ABSTRACT:
New 1,4-bis-[azol-2'-yl]-naphthalene compounds, a process for their preparation as well as a process for optically brightening organic materials on using said compounds are disclosed.
REFERENCES:
patent: 3336330 (1967-08-01), Schinzel et al.
patent: 3575996 (1971-04-01), Liechti et al.
patent: 3641051 (1972-02-01), Frischkorn et al.
patent: 3709896 (1973-01-01), Frischkorn et al.
patent: 3993659 (1976-11-01), Meyer
patent: 4048185 (1977-09-01), Pintschovious et al.
Almaula Prabodh I.
Ciba-Geigy Corporation
McC. Roberts Edward
Willis, Jr. P. E.
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