Process for the continuous preparation of two-component...

Details Process for the continuous preparation of two-component... Process for the continuous preparation of two-component...

2005-06-28

2005-06-28

Peng, Kuo-Liang (Department: 1712)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C528S032000, C528S014000, C528S031000

Reexamination Certificate

active

06911495

ABSTRACT:
A process for the continuous preparation of addition-crosslinking silicone rubbers from a base composition containing at least one polyvinyl polysiloxane and at least 10% by weight, based on the liquid silicone rubber, of hydrophobicized filler, by removing the base composition from a container whose volume reduces proportionally with the amount removed, and conveying the composition by way of a pump with a positive pressure difference to two further pumps (4) which convey the base composition onward, so a component A is prepared continuously by admixing at least one metal catalyst with one stream of the base composition, and a component B is prepared continuously and simultaneously by admixing the crosslinker and inhibitor with a second stream of the base composition, where the metal catalyst, crosslinker, and inhibitor are fed by way of a feed unit which meters in each of the substances.

REFERENCES:
patent: 5057151 (1991-10-01), Schuster et al.
patent: 6218495 (2001-04-01), Braun et al.
patent: 6313217 (2001-11-01), Barthel et al.
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English Derwent Abstract AN 1993—353028 [45] corresp. to EP 0 568 891.
English Derwent Abstract AN 1999-481056 [41] corresp. to DE 198 09 548.
English Derwent Abstract AN 1991-260784 [36] corresp. to DE 4 005 823.
English Derwent Abstract AN 1990-172169 [23] corresp. to EP 378 785.
English Derwent Abstract AN 1993-353028 [45] corresp. to EP 05 68 891 A1.
English Derwent Abstract AN 1993-353028 [45] corresp. to DE 04 215 205.
English derwent Abstract AN 1994-209481 [46] corresp. to DE 4 242 833.

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