METHOD FOR PREPARING IMPACT-RESISTANT BLOCK COPOLYETHERAMIDE Russian patent published in 1998 - IPC

Abstract RU 2110531 C1

FIELD: building industry. SUBSTANCE: mixture of lactam, basic lactam polymerization catalyst and polymeric activator of structural formula: wherein Z is polyoxyalkylene polyoxyl having molecular weight from 2000 to 6000 and functionality of 2 or 3; Ar is 1,3-or 1,4-phenylene; n is within 0.3 to 1.5; n+m is 2 or 3; d is 5 or 3; Q is wherein R is alkyl having 1 to 8 carbon atoms at molar ratios of (1.0-1.4):(0.01- 0.02):(0.3-0.8), respectively. EFFECT: more efficient preparation method. 2 cl, 2 tbl

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RU 2 110 531 C1

Authors

Frolov V.G.

Demina M.I.

Gladkovskij G.A.

Zejberlikh F.N.

Dates

1998-05-10—Published

1995-06-22—Filed