Embedding material and process for the production thereof

Details Embedding material and process for the production thereof Embedding material and process for the production thereof

1985-03-26

1986-07-01

Cockeram, Herbert S.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

2103212, 528 55, 528 58, 528 60, 528 745, B01D 1300, C08G 1822, C08G 1836

Patent

active

045981361

ABSTRACT:
Aliphatic embedding masses are disclosed, prepared by initially reacting one or more aliphatic diisocyanates with castor oil or a mixture of castor oil and further hydroxyl compounds, such as e.g., trimethylol propane into a NCO-group-displaying pre-adduct, and the pre-adduct is then hardened in a catalyzed reaction with a mixture containing castor oil, trimethylol propane and N-methyldiethanol amine. Preferably iron acetyl acetonate, dibutyl tin diacetate or titanium tetrabutylate are employed as catalysts. Isophoron diisocyanate is particularly suitable as diisocyanate.
The embedding masses are useful for the embedding of membranes, preferably membranes to be employed in medical fields. The embedding masses are bio-compatible, especially with regard to blood, and are non-toxic. They allow for the embedding of membranes with the aid of automatic machinery. The embedding masses display no or only negligible swelling when used in contact with blood, blood-like and aqueous systems.

REFERENCES:
patent: 3546148 (1970-12-01), Diamond et al.
patent: 3549569 (1970-12-01), Farah et al.
patent: 3892713 (1975-07-01), Burkus et al.
patent: 4125545 (1978-11-01), Kroplinski et al.
patent: 4224164 (1980-09-01), Brauer et al.
patent: 4256617 (1981-03-01), Kroplinski et al.
patent: 4344873 (1982-08-01), Wick
patent: 4391964 (1983-07-01), Wick et al.

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