Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1988-08-26
1989-10-17
Lusignan, Michael
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
427387, 428447, 528 38, B32B 700, B32B 2500, C08G 7726
Patent
active
048746622
ABSTRACT:
The invention is a process wherein organic fibers are impregnated with organopolysiloxane (1) containing, in addition to diorganosiloxane units in which the two SiC-bonded organic radicals are monovalent hydrocarbon radicals, at least two monovalent SiC-bonded radicals containing basic nitrogen, at least some of the SiC-bonded radical containing basic nitrogen comprising SiC-bonded N-cyclohexylaminoalkyl radicals. The SiC-bonded N-cyclohexylaminoalkyl radicals are in monoorganosiloxane and/or diorganosiloxane and/or triorganosiloxane units. The preferred SiC-bonded N-cyclohexylaminoalkyl radical is the SiC-bonded N-cyclohexyl-3-aminopropyl radical. The organopolysiloxane (1) contains optionally condensable groups which are bonded directly to silicon. The organopolysiloxane (1) containing condensable groups bonded directly to silicon can be employed together with an organopolysiloxane (2a) containing at least 3 Si-bonded hydrogen atoms per molecule, or together with trialkoxy- or tetraalkoxysilanes (2b), and if appropriate, together with a catalyst (3) for the condensation of condensable groups bonded directly to silicon.
REFERENCES:
patent: 4247592 (1981-01-01), Kalinowski
patent: 4559385 (1985-12-01), Huhn et al.
Lusignan Michael
Wacker-Chemie GmbH
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