Hot melt adhesives comprising copolymeric polyamides

Details Hot melt adhesives comprising copolymeric polyamides Hot melt adhesives comprising copolymeric polyamides

1973-09-13

1976-11-02

Phynes, Lucille M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

156331, 260 78A, 260857R, 264176F, 264177R, 427412, C08G 6936

Patent

active

039896781

ABSTRACT:
A hot melt adhesive which comprises a copolyamide consisting essentialy of (1) .epsilon.-caprolactam, (2)(a) hexamethylenediamine and (b) at least one straight chain, saturated aliphatic dicarboxylic acid having 6 to 20 carbon atoms in a substantially equimolar ratio and (3)(a) at least one of 2,2,4-trimethylhexamethylenediamine and 2,4,4-trimethylhexamethylenediamine and (b) at least one straight chain, saturated aliphatic dicarboxylic acid having 6 to 20 carbon atoms in a substantially equimolar ratio, the proportion of [A] the constituent unit essentially consisting of the component (1), [B] the contituent unit essentially consisting of the components (2)(a) and (2)(b) and [C] the constituent unit essentially consisting of the components (3)(a) and (3)(b) therein being within a pentagon circumscribed by the lines connecting the points P (82/17/1), Q (52/47/1), R (0/65/35), S (0/50/50) and T (86/7/7) in the graph as shown in FIG. 1 of the accompanying drawing (the numerals in the parenthesis following P, Q, R, S and T indicating the molar percentages of the constituent units [A], [B] and [C], respectively).

REFERENCES:
patent: 2252555 (1941-08-01), Carothers
patent: 3322731 (1967-05-01), Cook et al.
patent: 3703595 (1972-11-01), Falkenstein et al.
patent: 3734887 (1973-05-01), Schmitt et al.
patent: 3784495 (1974-01-01), Sprauer
patent: 3839121 (1974-10-01), Schmitt
patent: 3850887 (1974-11-01), Halas et al.

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