Method for producing saturated polyester

Details Method for producing saturated polyester Method for producing saturated polyester

1991-11-25

1994-04-26

Kight, III, John

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

Synthetic resins

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

528272, 528302, 528308, 525437, C08F 2000

Patent

active

053067878

ABSTRACT:
A method for producing a high molecular weight saturated polyester comprising adding to a saturated polyester with the terminal group being substantially hydroxyl group, having a number average molecular weight of 5,000 or more and being in the molten state, diisocyanate containing isocyanate group the amount of which corresponds to 1/10 to 2 equivalents of the amount of the hydroxyl group.

REFERENCES:
patent: 2999851 (1961-09-01), Elmer et al.
patent: 4041208 (1977-08-01), Seeger et al.
patent: 4166873 (1979-09-01), Gilliam et al.
patent: 4912177 (1990-03-01), Skochdopole et al.
patent: 5061778 (1991-10-01), Uchida et al.
patent: 5068143 (1991-11-01), Agger et al.

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