Composite having more than one layer
First Claim
1. A thermoplastic composite having a multiplicity of layers and comprising:
- I) a layer of a polyamide molding composition, II) a layer of a polyester molding composition, and III) a layer of an adhesion promoter adherent to I and II consisting of a blend of;
a) from 20 to 80% by weight of a polyamide, prepared from α
) at least one diamine having from 6 to 12 carbon atoms, and β
) an essentially stoichiometrically equivalent amount of at least one dicarboxylic acid comprising at least 5 mol % of a dicarboxylic acid having from 10 to 36 carbon atoms, andb) from 80 to 20% by weight of a polyester, prepared from α
) a mixture of from 30 to 95 mol % of an aromatic dicarboxylic acid having from 6 to 20 carbon atoms and from 70 to 5 mol % of the same dicarboxylic acid as in the polyamide of the adhesion promoter, having from 10 to 36 carbon atoms, and β
) at least one diol having from 2 to 12 carbon atoms.
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Abstract
A thermoplastic composite having a multiplicity of layers and comprising:
I) a layer of a polyamide molding composition,
II) a layer of a polyester molding composition, and
III) a layer of an adhesion promoter adherent to I and II comprising at least 50% by weight of a blend of:
a) from 20 to 80% by weight of a polyamide, prepared from
α) at least one diamine having from 6 to 12 carbon atoms, and
β) an essentially stoichiometrically equivalent amount of at least one dicarboxylic acid comprising at least 5 mol % of a dicarboxylic acid having from 10 to 36 carbon atoms,
and
b) from 80 to 20% by weight of a polyester, prepared from
α) a mixture of from 30 to 95 mol % of an aromatic dicarboxylic acid having from 6 to 20 carbon atoms and from 70 to 5 mol % of the same dicarboxylic acid as in the polyamide of the adhesion promoter, having from 10 to 36 carbon atoms, and
β) at least one diol having from 2 to 12 carbon atoms.
107 Citations
51 Claims
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1. A thermoplastic composite having a multiplicity of layers and comprising:
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I) a layer of a polyamide molding composition, II) a layer of a polyester molding composition, and III) a layer of an adhesion promoter adherent to I and II consisting of a blend of;
a) from 20 to 80% by weight of a polyamide, prepared from α
) at least one diamine having from 6 to 12 carbon atoms, andβ
) an essentially stoichiometrically equivalent amount of at least one dicarboxylic acid comprising at least 5 mol % of a dicarboxylic acid having from 10 to 36 carbon atoms,and b) from 80 to 20% by weight of a polyester, prepared from α
) a mixture of from 30 to 95 mol % of an aromatic dicarboxylic acid having from 6 to 20 carbon atoms and from 70 to 5 mol % of the same dicarboxylic acid as in the polyamide of the adhesion promoter, having from 10 to 36 carbon atoms, andβ
) at least one diol having from 2 to 12 carbon atoms.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A thermoplastic composite having a multiplicity of layers and comprising:
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I) a layer of a polyamide molding composition, II) a layer of a polyester molding composition, and III) a layer of an adhesion promoter adherent to I and II comprising at least 50% by weight of a blend of;
a) from 20 to 80% by weight of a polyamide, prepared from α
) at least one diamine having from 6 to 12 carbon atoms, andβ
) an essentially stoichiometrically equivalent amount of at least one dicarboxylic acid comprising at least 5 mol % of a dicarboxylic acid having from 10 to 36 carbon atoms,and b) from 80 to 20% by weight of a polyester, prepared from α
) a mixture of from 30 to 95 mol % of an aromatic dicarboxylic acid having from 6 to 20 carbon atoms and from 70 to 5 mol % of the same dicarboxylic acid as in the polyamide of the adhesion promoter, having from 10 to 36 carbon atoms, andβ
) at least one diol having from 2 to 12 carbon atoms;
wherein said polyester component and said polyamide component of said adhesion promoter form an interpenetrating network. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A thermoplastic composite having a multiplicity of layers and comprising:
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I) a layer of a polyamide molding composition, II) a layer of a polyester molding composition, and III) a layer of an adhesion promoter adherent to I and II comprising at least 50% by weight of a blend of;
a) from 20 to 80% by weight of a polyamide, prepared from α
) at least one diamine having from 6 to 12 carbon atoms, andβ
) an essentially stoichiometrically equivalent amount of at least one dicarboxylic acid comprising at least 5 mol % of a dicarboxylic acid having from 10 to 36 carbon atoms,and b) from 80 to 20 % by weight of a polyester, prepared from α
) a mixture of from 30 to 95 % of an aromatic dicarboxylic acid having from 6 to 20 carbon atoms and from 70 to 5 mol % of the same dicarboxylic acid as in the polyamide of the adhesion promoter, having from 10 to 36 carbon atoms, andβ
) at least one diol having from 2 to 12 carbon atoms;
wherein said polyamide component of said adhesion promoter is polymerized from at least one monomer selected from the group consisting of caprolactam, laurolactam, ω
-aminoundecane, and mixtures thereof.- View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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Specification