Method for preparing furan-epoxy powder-like binder

Details Method for preparing furan-epoxy powder-like binder Method for preparing furan-epoxy powder-like binder

1978-12-14

1981-03-03

Lieberman, Paul

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

Synthetic resins

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

525410, 525417, 525934, C08F28310

Patent

active

042542456

ABSTRACT:
A method for preparing a furan-epoxy powder-like binder which comprises interaction of an epoxy diane resin with a nitrogen-containing furan monomer, such as furfuramide or 3-methyl-5-furylpyrazoline at a temperature ranging from 140.degree. to 160.degree. C. at a ratio of the nitrogen-containing furan monomer to the epoxy diane resin equal to 0.2:5 to 3.4:5 expressed in parts by weight. The process may be performed in the presence of trifurylborate at the weight ratio thereof to the epoxy diane resin equal to 0.05:5 to 0.6:5 expressed in parts by weight. The resulting product is cooled to a temperature of not more than 30.degree. C. and then disintegrated to a powder-like state. The furane epoxy binder prepared by the method according to the present invention does not get clogged for 45 days and may be stored for long periods of up to 6 months without any changes in its initial properties. Vicat deformation heat-resistance of the polymeric material produced with the use of said binder is as high as 230.degree. C. Polymeric materials prepared with the binder according to the present invention may be both inflammable and non-inflammable or possess the ability of self-extinguishing.

REFERENCES:
patent: 3366595 (1968-01-01), Dereich
patent: 3491041 (1970-01-01), Dornte
patent: 4145369 (1979-03-01), Hira

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