Agent for surface modification of fillers for polyamide composition comprises selected functionalized silane compounds

摘要

An agent for the surface modification of fillers for polyamide compositions comprises: (A) an amino-functional silane, a bis-aminosilane a tertiary aminosilane or an oligomer of these; (B) a mixture of an amino-functional silane, bis-aminosilane and/or tertiary aminosilane and an alkyl-, alkenyl- or polyether-functional silane and optionally an oligomer of these; or (C) a mixture of an alkyl-functional silane and an alkenyl-functional silane and optionally an oligomer of these. An agent for the surface modification of fillers for polyamide compositions comprises either: (A) an agent comprising: (i) an amino-functional silane of formula (Ia); (ii) a bis-aminosilane (Ib); (iii) a tertiary aminosilane (Ic); or an oligomer of (Ia)-(Ic) with a degree of oligomerization (DO) of 2-20; (B) a mixture of: (i) a component comprising (a) an amino-functional silane of formula (IIa), (b) a secondary aminosilane (IIb) and/or (c) a tertiary aminosilane (IIc); and (ii) a component comprising either (a) an alkyl-functional silane of formula (III), (b) an alkenyl-functional silane of formula (IV), (c) a polyether-functional silane of formula (V); and optionally (iii) an oligomer of (IIa)-(IIc) and (III)-(V) with a DO of 2-20; or (C) a mixture of: (i) an alkyl-functional silane of formula (IIIa); and (ii) an alkyl-functional silane of formula (IV); and optionally (iii) an oligomer of (IIIa) and (IV) with a DO of 2-20. RNH-(CH2)3-Si(Me)x(Z)3-x (Ia) Z = 1-3C alkoxy, OH or Cl; x = 0 or 1; and R = 1-20C alkyl, 5-12C cycloalkyl or 6-12C aryl. R-Si(Me)x(Z)3-x (IIa) Z = 1-3C alkoxy, OH or Cl; x = 0 or 1; R = H2N((CH2)2NH)y(CH2)3; and y = 0-2. R'-Si(Me)x(Z)3-x (IIIa) Z = 1-3C alkoxy, OH or Cl; x = 0-1; and R' = optionally fluorinated 1-16C alkyl or cycloalkyl. CH2=CH(CH2)n-Si(Me)x(Z)3-x (IV) Z = 1-3C alkoxy, OH or Cl; x = 0 or 1; and n = 0-20. R(OCH2CHR')nO(CH2)mSi (Me)x(Z)3-x (V) z = 1-3C alkoxy, OH or Cl; x = 0 or ; R = 1-4C alkyl; R' = H or Me; n = 5-20; and m = 2 or 3. Independent claims are also included for the following: (1) a filler surface-modified with the above agent; (2) an article comprising the surface-modified filler; (3) a filled polyamide composition produced using the surface-modified filler; and (4) an article based on the filled polyamide composition.