Patent ID: 6500883
Filing Date: 2002-12-31
Classification: C08K

Abstract:
A filler surface-modified by treatment with an organosilane- and/or organosiloxane-containing agent A and optionally agent B for use in preparing a filled polyamide,whereagent A comprises at least one bisaminosilane, or comprises at least one tertiary aminosilane, or comprises a mixture of primary and secondary and/or tertiary aminosilanes, or aminosiloxanes which are obtained by hydrolysis, condensation or cocondensation of primary, secondary and/or tertiary aminosilanes, where the average degree of oligomerization of the aminosiloxanes is from 2 to 20: agent B i) comprises at least one amino-functional silicon compound of the general formula II Râ€”Si(CH3)x(Z)3âˆ’xâ€ƒâ€ƒ(II) in which the groups Z are identical or different and Z is an alkoxy group having from 1 to 3 carbon atoms or a hydroxyl group or a chlorine atom, x is 0 or 1 and R is an amino group of the formula H2Nâ€”((CH2)2NH)y(CH2)3â€”, where y is 0, 1 or 2, â€ƒand/or â€ƒcomprises at least one secondary aminosilane, â€ƒand/or â€ƒcomprises at least one tertiary aminosilane, â€ƒand ii) comprises at least one alkyl-functional silicon compound of the general formula III Râ€²â€”Si(CH3)x(Z)3âˆ’xâ€ƒâ€ƒ(III) in which the groups Z are identical or different and Z is an alkoxy group having from 1 to 3 carbon atoms or a hydroxyl group or a chlorine atom, x is 0 or 1 and Râ€² is a linear or branched or cyclic, if desired fluorine-substituted, alkyl group having from 1 to 16 carbon atoms, or â€ƒcomprises at least one alkenyl-functional silicon compound of the general formula IV CH2&boxH;CHâ€”(CH2)nâ€”Si(CH3)x(Z)3âˆ’xâ€ƒâ€ƒ(IV) in which the groups Z are identical or different and Z is an alkoxy group having from 1 to 3 carbon atoms or a hydroxyl group or a chlorine atom, x is 0 or 1 and n is an integer from 0 to 20, or â€ƒcomprises a polyether-functional silicon compound of the general formula V Râ€”(Oâ€”CH2â€”CHRâ€²)nâ€”Oâ€”(CH2)mâ€”Si(CH3)x(Z)3âˆ’xâ€ƒâ€ƒ(V) in which the groups Z are identical or different, Z is an alkoxy group having from 1 to 3 carbon atoms or a hydroxyl group or a chlorine atom, R is a linear or branched alkyl group having from 1 to 4 carbon atoms, Râ€² is a hydrogen atom or a CH3 group, n is an integer from 5 to 20, m is 2 or 3 and x is 0 or 1, and/or iii) optionally, comprises siloxanes which are obtained by hydrolysis, condensation or cocondensation of compounds of the general formula II, of the secondary aminosilanes, of the tertiary aminosilanes, bisaminosilanes, compounds of the general formula III, IV or V, where the average degree of oligomerization of the siloxanes is from 2 to 20.