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...
Patent
1978-02-03
1979-10-16
Welsh, Maurice J.
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...
521129, 528 78, 528 85, C08G 1832
Patent
active
041714199
ABSTRACT:
The present invention relates to a two-compartment cartridge which is suitable for securing stay bars in bore holes by means of polyurethane resins and which is destructible by the stay bar, containing a polyisocyanate component on the one hand and a polyol component on the other hand, distinguished by the fact that the polyisocyanate component used is an aromatic polyisocyanate or a mixture of aromatic polyisocyanates, while the polyol component used is a polyol containing tertiary amine nitrogen and having a molecular weight of from about 119 to 3000 or a polyol mixture containing at least one such polyol. The present invention also relates to a process for securing stay bars in bore holes by introducing into the bore hole a two-compartment cartridge which contains components capable of forming a synthetic resin and which is destructible by driving in the stay bar and subsequently driving in the stay bar, distinguished by the fact that a cartridge of the type described above is used as the two-compartment cartridge.
REFERENCES:
patent: 3277027 (1966-10-01), Hennig et al.
patent: 3792023 (1974-02-01), Havenith et al.
Kubens Rolf
Meyer Frank
Winkelmann Martin
Bayer Aktiengesellschaft
Bergwerksverband GmbH
Colen Frederick H.
Harsh Gene
Pope Lawrence S.
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