Melt-polymerization process for the preparation of thermoplastic

Details Melt-polymerization process for the preparation of thermoplastic Melt-polymerization process for the preparation of thermoplastic

1982-09-27

1983-12-13

Phynes, Lucille M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 85, 528480, 528501, 528502, C08G 1832

Patent

active

044206020

ABSTRACT:
A melt-polymerization process is described for the preparation of thermoplastic polyamides and polyesteramides by reaction of the appropriate organic diisocyanate and dicarboxylic acid or difunctional carboxylic acid-terminated polyol. The process, which can be conducted in a batch or continuous manner, comprises the steps of admixing the reactants (preferably in the liquid state), heating the mixed reactants at reaction temperature in a manner such that eliminated carbon dioxide can be vented freely, allowing the reaction to proceed until approximately 25-95 percent (preferably at least 50 percent) of the theoretical carbon dioxide has been eliminated and reducing the resulting intermediate to a powder before completing the reaction by melting, homogenizing, and devolatilizing.

REFERENCES:
patent: 3477094 (1969-11-01), Maahs et al.
patent: 3492791 (1970-02-01), Evans
patent: 3493031 (1970-02-01), Williams et al.
patent: 3773738 (1973-11-01), Porter et al.
patent: 3833546 (1974-09-01), Takekoshi et al.
patent: 4011198 (1977-03-01), Takekoshi et al.
patent: 4073773 (1978-02-01), Banucci et al.
patent: 4087481 (1978-05-01), Onder
patent: 4096129 (1978-06-01), Cook
patent: 4115372 (1978-09-01), Onder
patent: 4153501 (1979-05-01), Fink et al.
patent: 4156065 (1979-05-01), Onder et al.
patent: 4371684 (1983-02-01), Quiring et al.
patent: 4385171 (1983-05-01), Schnabel et al.

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