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Polymers containing silane groups

  • US 20040109884A1
  • Filed: 11/25/2002
  • Published: 06/10/2004
  • Est. Priority Date: 11/28/2001
  • Status: Abandoned Application
First Claim
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1. Hyperbranched silane-functional polyamide-urethane, which can be obtained by condensation of A) from 40 to 100 parts by weight of one or more amino acids having at least two amino groups and one carboxyl group and/or lactams thereof, B) from 0 to 60 parts by weight of one or more amino acids having one amino group and one carboxyl group and/or lactams thereof, and C) from 0 to 60 parts by weight of diamines of Formula (I), H2N-R-NH2



  • (I)  

    in which R stands for a C2-C36 alkylene or cycloalkylene radical, a C8-C20 alkylenearylene radical, or a radical of Formula (II), —

    R1(-X—

    CH2

    C(R2)H—

    )n

    X—

    R1- 



    (II)  

    in which R1 is an ethylene, propylene or butylene radical, R2 is a methyl group or a hydrogen atom, X is an oxygen atom or an NH group, and n is a natural number from 1 to 100, in the melt and subsequent reaction of the melt condensation product with from 1 to 20% by weight, expressed in terms of the melt condensation product, of an isocyanatosilane of Formula (III), O═

    C═

    N—

    CH2

    CH2

    CH2

    Si(OR4)3



    (III) in which R4 is a C1-C4 alkyl radical or a methoxyethyl radical.

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