Process for preparation of molding resins

Details Process for preparation of molding resins Process for preparation of molding resins

1977-04-11

1979-08-21

Person, Sandra M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

264140, 525440, 525410, 525411, 525445, 525466, 525467, C08K 334, C08K 340

Patent

active

041653076

ABSTRACT:
The present invention relates to a process for preparation of molding resins comprising heating and kneading an isocyanate prepolymer derived from a hydroxyl-terminated polymer and a polyfunctional isocyanate with a hydroxyl-terminated low-molecular-weight polybutylene terephthalate in the presence of reinforcing filler by means of an extruder.

REFERENCES:
patent: 2751363 (1956-06-01), Martin
patent: 2943072 (1960-06-01), Forsythe
patent: 4009043 (1977-02-01), Preis
patent: 4034016 (1977-07-01), Baron et al.
patent: 4062825 (1977-12-01), Watabe et al.

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