Release agent and process for the preparation of molded polyuret

Details Release agent and process for the preparation of molded polyuret Release agent and process for the preparation of molded polyuret

1989-11-20

1991-08-27

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

528 25, 528 29, 528 15, 556479, 556462, C08G 7712

Patent

active

050434098

ABSTRACT:
In a process for the preparation of molded polyurethane or polyurea articles, especially by the RIM process, internal release agents of the general formula ##STR1## are used. In this formula R.sup.1 =is alkyl with 20 to 40 carbon atoms,

REFERENCES:
patent: 3439014 (1969-04-01), Patton et al.
patent: 4831081 (1989-05-01), King, III et al.

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