Aqueous preparation of polyamide with catalyst mixture

Details Aqueous preparation of polyamide with catalyst mixture Aqueous preparation of polyamide with catalyst mixture

1992-09-18

1994-03-29

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

526 65, 526 66, 528335, 528347, C08G 6928

Patent

active

052985970

ABSTRACT:
A polyamide/copolyamide catalyst composition comprising a primary catalyst which comprises an alkali metal hypophosphite or an alkali-earth metal hypophosphite, and a cocatalyst which comprises an organic salt or an inorganic salt. The catalyst composition of this invention is most useful when used in conjunction with the reactive extrusion technology which requires a very fast polymerization rate to take full advantage of this evolving technology.

REFERENCES:
patent: 5194576 (1993-03-01), Poll et al.
patent: 5245006 (1993-09-01), Poll et al.

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