Process for the production of polyester resins

Details Process for the production of polyester resins Process for the production of polyester resins

1981-11-09

1982-07-13

Foelak, Morton

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

Synthetic resins

From reactant which is a cellular material derived from...

521100, 521109, 521154, 528 44, 527300, 527311, 527105, 527103, 527305, 527313, 527314, C08L 100

Patent

active

043393667

ABSTRACT:
Polyester resins are produced by chemically reacting a broken-down alkali metal lignin-cellulose polymer, a substituted organic hydroxy compound and a polycarboxylic acid compound and/or a polycarboxylic acid anhydride. Polyester resins may be used as molding powder, as coating agents and to produce polyurethane foams.

REFERENCES:
patent: 4260696 (1981-04-01), Blount
patent: 4281110 (1981-07-01), Blount
patent: 4283311 (1981-08-01), Blount

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