4-Styryl-4'-vinylbiphenyls, the production thereof and use there

Details 4-Styryl-4'-vinylbiphenyls, the production thereof and use there 4-Styryl-4'-vinylbiphenyls, the production thereof and use there

1984-01-23

1985-04-02

Childs, S. L.

Compositions

Organic luminescent material containing compositions

Optical brightening compositions

8648, 25230127, 260465R, 260465D, 260465G, 427158, 428480, 560 51, 560 81, 585 25, 585469, B32B 904

Patent

active

045087849

ABSTRACT:
The invention relates to novel 4-styryl-4'-vinylbiphenyls of the formula ##STR1## wherein the benzene rings A, B and C can carry non-chromophoric substituents and R.sub.3 is a second order non-chromophoric substituent, and R.sub.4 is hydrogen or a non-chromophoric substituent which cannot be a second order substituent, and also a process for obtaining them. These novel compounds can be used as fluorescent whitening agents for treating organic material of high molecular weight, preferably textile material, most preferably polyester fibres. The invention also discloses novel intermediates of the formula ##STR2## wherein A, B and C are as defined above, which are formed during the production of the novel 4-styryl-4'-vinylbiphenyls, and also a process for obtaining them.

REFERENCES:
patent: 3984399 (1976-10-01), Weber et al.
patent: 4118560 (1978-10-01), Weber
patent: 4147648 (1979-04-01), Gunter et al.

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