Production of high-molecular polytetramethylene adipamide pellet

Details Production of high-molecular polytetramethylene adipamide pellet Production of high-molecular polytetramethylene adipamide pellet

1986-11-26

1988-07-12

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

525420, 528502, C08G 6946

Patent

active

047571314

ABSTRACT:
The invention relates to a method for the production of high-molecular polytetramethylene adipamide in a two-step process in which the prepolymer particles obtained in the first process step are compressed into pellets which are subjected to the after-condensation reaction. The obtained high-molecular polytetramethylene adipamide pellets can be used without further shaping through e.g. melt extrusion.

REFERENCES:
patent: 4408036 (1983-10-01), Gaymans et al.
patent: 4446304 (1984-05-01), Gaymans et al.
patent: 4460762 (1984-07-01), Gaymans et al.

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