Thermoplastic multilayer composites
AssigneeHuels Aktiengesellschaft
InventorsStefan Rober, Roland Feinauer, Hans Jadamus
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Abstract
The present invention relates to a composite material having improved thermal and mechanical properties which comprises at least: (I) an outer layer made of a molding composition based on polyvinylidene fluoride, and (II) an intermediate layer which neighbors the inner layer and is made of a molding composition based on a mixture of (a) from 40-90% by weight a polyamide and (b) from 60-10% by weight a polyglutarimide, wherein the two layers (I) and (II) are adhesively bonded to one another.
Claims16
A thermoplastic multilayer composite which comprises at least:
- (I) a layer formed from a polyvinylidene fluoride molding composition, and
- (II) a second layer adjacent to said layer (I) formed from a molding composition consisting essentially of a mixture of
- (a) from 40-90% by weight polyamide, and
- (b) from 60-10% by weight polyglutarimide, wherein the two layers (I) and (II) adhesively bond to each other, said polyglutarimide component (IIb) consisting of the following building blocks:
- i) a maximum of 98.8% by weight, based on the total weight of component (IIb) of ##STR5## ii) greater than 0% by weight to a maximum of 98.8% by weight, based on the total weight of component (IIb), of ##STR6## iii) <20% by weight, based on the total weight of component (IIb), of ##STR7## iv) from 1.2 to 20% by weight, based on the total weight of component (IIb), of ##STR8## wherein alkyl is methyl, ethyl, propyl, butyl, or hexyl;
- and R.sub.1 to R.sub.5, identical or different, are hydrogen or (C.sub.n H.sub.2n+1) where n is an integer of from 1 to 6.
A molding comprising a thermoplastic multilayer composite which comprises at least:
- (I) a layer formed from a polyvinylidene fluoride molding composition, and
- (II) a second layer adjacent to said layer (I) formed from a molding composition consisting essentially of a mixture of
- (a) from 40-90% by weight polyamide, and
- (b) from 60-10% by weight polyglutarimide, wherein the two layers (I) and (II) adhesively bond to each other, said polyglutarimide component (IIb) consisting of the following building blocks:
- i) a maximum of 98.8% by weight, based on the total weight of component (IIb), of ##STR13## ii) greater than 0% by weight to a maximum of 98.8% by weight, based on the total weight of component (IIb), of ##STR14## iii) <20% by weight, based on the total weight of component (IIb), of ##STR15## iv) from 1.2 to 20% by weight, based on the total weight of component (IIb), of ##STR16## wherein alkyl is methyl, ethyl, propyl, butyl, or hexyl;
- and R.sub.1 to R.sub.5, identical or different, are hydrogen or (C.sub.n H.sub.2n+1) where n is an integer of from 1 to 6.
A hollow article comprising a thermoplastic multilayer composite which comprises at least:
- (I) a layer formed from a polyvinylidene fluoride molding composition, and
- (II) a second layer adjacent to said layer (I) formed from a molding composition consisting essentially of a mixture of
- (a) from 40-90% by weight polyamide, and
- (b) from 60-10% by weight polyglutarimide, wherein the two layers (I) and (II) adhesively bond to each other, said polyglutarimide component (IIb) consisting of the following building blocks:
- i) a maximum of 98.8% by weight, based on the total weight of component (IIb) of ##STR21## ii) a maximum of 98.8% by weight, based on the total weight of component (IIb), of ##STR22## iii) <20% by weight, based on the total weight of component (IIb), of ##STR23## iv) from 1.2 to 20% by weight, based on the total weight of component (IIb), of ##STR24## wherein alkyl is methyl, ethyl, propyl, butyl, or hexyl;
- and R.sub.1 to R.sub.5, identical or different, are hydrogen or (C.sub.n H.sub.2n+1) where n is an integer of from 1 to 6.
Dependencies are inferred from the claim text.