Shaped parts out of intumescent mixtures and a method for the ma

Details Shaped parts out of intumescent mixtures and a method for the ma Shaped parts out of intumescent mixtures and a method for the ma

1998-10-30

1999-09-07

Foelak, Morton

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

Synthetic resins

Processes of preparing a desired or intentional composition...

521 54, 521 82, 521 92, 521 98, 523218, 523219, C09K 2114, C08J 932

Patent

active

059488344

ABSTRACT:
The invention relates to a mixture for the manufacture of intumescent shaped parts with a composition containing in percentage by weight, 30-60% thermoplastic, 40-70% expandable graphite and 5-40% filler mixture. The mixture does not attack processing machines and has an improved foaming behavior. A particular characteristic of the mixture is that the filler mixture forms OH.sup.- ions when it contacts moisture.

REFERENCES:
patent: 4694030 (1987-09-01), von Bonin et al.
patent: 4945015 (1990-07-01), Milner et al.
patent: 5508321 (1996-04-01), Brebner

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