Compositions – Preservative agents – Anti-corrosion
Patent
1992-09-23
1993-07-06
Foelak, Morton
Compositions
Preservative agents
Anti-corrosion
521 91, 521 92, 521 97, C09K 300, C08J 908
Patent
active
052251071
ABSTRACT:
The invention relates to new nucleating agents for the preparation of directly gassed thermoplastic foams. The new agents comprise a combination of citric acid, the salts or esters thereof and carbonate or bicarbonate and talc.
REFERENCES:
patent: 4456572 (1984-06-01), Euguchi et al.
patent: 4522955 (1985-06-01), Fukushima
patent: 4632942 (1986-12-01), Ito et al.
patent: 4638015 (1987-01-01), Bertrand
Hilgert Karl-Heinz
Kretzschmann Gunther
Scholz Dieter
Boehringer Ingelheim GmbH
Foelak Morton
Frankhouser D. E.
Stempel A. R.
Timbers M-E. M.
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