Process for the manufacture of polyaddition products containing

Details Process for the manufacture of polyaddition products containing Process for the manufacture of polyaddition products containing

1974-12-18

1977-07-26

Schofer, Joseph L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 47CZ, 260 57R, 260 793M, 260844, C08G 7310, C08F22240

Patent

active

040382516

ABSTRACT:
According to the invention, polyaddition products containing imide groups are manufactured by reacting certain polyimides (preferably maleimides) with polyhydric phenols in the presence of basic compounds. The preferred embodiment (A) relates to the use of catalysts as basic compounds. In particular, tertiary, secondary or mixed tertiary-secondary amines can be used. A further embodiment (B) relates to the use of primary polyamines as basic compounds. In the latter case, the polyamine participates in the polyaddition mechanism, that is to say the molecules are incorporated into the polyaddition products. In this latter case, catalysts can also be used additionally.
The invention can be utilized particularly in the fields of surface protection, the electrical industry, laminating processes and the manufacture of foamed plastics, and in the building industry.

REFERENCES:
patent: 3741942 (1973-06-01), Crivello
patent: 3821164 (1974-06-01), Relles et al.
patent: 3840495 (1974-10-01), Balme et al.
patent: 3849374 (1974-11-01), Renner et al.
patent: 3960812 (1976-06-01), Renner et al.

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