Process for enhancing the compatibility of polyamide and polyest

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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524128, 525425, C08K 551, C08L 6702

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active

050555090

ABSTRACT:
A process for enhancing the compatibility of polyester and polyamide in blends by adding thereto an effective amount of an aryl phosphoryl azide compound as for example diphenyl phosphoryl azide, and thereafter heating the composition until the desired enhancement in compatibility is obtained as evidenced by a lower of the individual melting points of the polyester and polyamide in the blend.

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patent: 3551548 (1970-12-01), Brignac et al.
patent: 3763113 (1973-10-01), Burrows et al.
patent: 4390667 (1983-06-01), Aharoni et al.
patent: 4391956 (1983-07-01), Scheetz
patent: 4417031 (1983-11-01), Aharoni et al.
patent: 4417032 (1983-11-01), Khanna et al.
patent: 4906708 (1990-03-01), Bhattacharjee et al.
Nishi Nori et al., "Polymerization of Amino-acids or Peptides with Diphenyl Phosphoryl Azide (DPPA)", Int. J. Biol. Macromol., vol. 2, p. 53 (1980).
S. Takayuki et al., "Diphenylphosphoryl Azide. A New Convenient Reagent for a Modified Curtius Reaction and for the Peptide Synthesis", J. of the American Chemical Society, vol. 94, pp. 6203-6205 (1972).

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