Powdered mixture of polyamides for heat sealing by the powder po

Details Powdered mixture of polyamides for heat sealing by the powder po Powdered mixture of polyamides for heat sealing by the powder po

1984-06-01

1984-12-11

Bleutge, John C.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

427180, 428261, 428206, 428287, 525934, C08L 7702, B32B 2734, D04H 2736

Patent

active

044878958

ABSTRACT:
Powdered polyamide mixtures for use in the heat sealing of textiles by the powder point process. The polyamide homogeneous mixtures contain:
(a) about 95 to 40% by weight of at least one copolyamide with a melting point of at least about 110.degree. to 140.degree. C. and having a proportion of a basic lauryllactam monomer component of at least 20% and at most 70% by weight; and
(b) about 5 to 60% by weight of at least one copolyamide with a melting point between about 80.degree. to 110.degree. C. and having a proportion of a basic lauryllactam monomer component or lauryllactam and 11-aminoundecanoic acid copolymer of at least 25% and at most 70% by weight, where the percentages are based on the total weight of the copolyamide mixtures.

REFERENCES:
patent: 3536780 (1970-10-01), Schaaf et al.
patent: 3950297 (1976-04-01), Raabe et al.
patent: 4139613 (1979-02-01), Hefele
patent: 4196108 (1980-04-01), Hinze et al.

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