Antifogging agent for plastics

Organic compounds -- part of the class 532-570 series – Organic compounds – Fatty compounds having an acid moiety which contains the...

Reexamination Certificate

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Reexamination Certificate



The invention relates to antifogging agents for plastics which are obtainable by transesterification of native oils with PEG or mixtures of PEG and other polyols, to plastics containing these antifogging agents and to the use of mixtures obtainable by transesterification of native oils with PEG or mixtures of PEG and other polyols as antifogging agents in plastics.

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patent: 3356621 (1967-12-01), Hopkins, Jr. et al.
patent: 4388307 (1983-06-01), Cavanak
patent: 5302327 (1994-04-01), Chu et al.
patent: 6294192 (2001-09-01), Patel et al.
patent: 643765 (1950-09-01), None
patent: 56-104953 (1981-08-01), None
patent: 04-279643 (1992-10-01), None
patent: 06-093139 (1994-04-01), None
Pardun, Chem. Abstr.,93:93663, 1980.
Salomon, Chem. Abstr., 54:17856A, 1960.
Plastics Additives Handbook, 5th Edition, Chapter 9, Hanser Verlag (2001), pp. 609-626.


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