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US 2003/0153726 A1Published application
Catalyst constituent
Assignee3M Deutschland GmbH
InventorsGunther Eckhardt, Erich Wanek, Bernd Kuppermann
Life of this patent
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Assignee3M Deutschland GmbH
InventorsGunther Eckhardt, Erich Wanek, Bernd Kuppermann
Estimating the term…
The invention relates to catalyst components, containing: (A) at least one Brönsted acid, (B) water, (C) at least one antacid-acting compound from the group consisting of the oxides, hydroxides, carbonates and/or carboxylates of the elements aluminium, chromium, copper, germanium, manganese, lead, antimony, tin, tellurium, titanium and/or zinc, (D) optionally at least one inert diluent, (E) optionally at least one modifier, the mixture of one part by weight of the catalyst component with three parts by weight bisaziridino polyether with an average imino equivalent mass of 3100, preparable from a polyetherdiol which comprises ethylene oxide and tetrahydrofuran units in the molar ratio 1:3.5 solidifying within 0.5 to 20 minutes to a solid elastomer material which has a shore A hardness of at least 20 according to DIN 53505 after 24 hours' storage time at room temperature.
Catalyst component, containing:
Catalyst component according to one of the previous claims, 0.5 to 2.0 base equivalents of the antacid-acting compound being used per acid equivalent of the Brönsted acid.
Catalyst component according to one of the previous claims, the antacid-acting compound comprising zinc oxide.
Catalyst component according to one of the previous claims, constituent (A) being selected from:
Catalyst component according to one of the previous claims, constituent (A) comprising p-toluenesulphonic acid or dodecylbenzenesulphonic acid.
Process for the preparation of a catalyst component according to one of the previous claims, the Brönsted acid being dissolved together with water at 20° C. to 70° C. in a part of the inert diluent according to constituent (D) and a suspension of the antacid-acting compounds being added to the solution.
Dependencies are inferred from the claim text.