Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1985-02-19
1986-07-15
Welsh, Maurice J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521163, 524718, 528 49, 528 52, 528 73, C08G 1814
Patent
active
046007296
ABSTRACT:
The invention relates to a process for the preparation of aliphatic-aromatic polyamide-imides in the absence of phenols.
REFERENCES:
patent: 3658773 (1972-04-01), Zecher et al.
patent: 3752791 (1973-08-01), Zecher et al.
patent: 3758434 (1973-09-01), Kunyel et al.
Reinking Klaus
Zecher Wilfried
Bayer Aktiengesellschaft
Welsh Maurice J.
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