Multicomponent thermoplastic product
AssigneeCarbios
InventorsFRÉDÉRIQUE GUILLAMOT, MADIHA ALOUI DALIBEY
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Abstract
The present invention relates to a multicomponent plastic product comprising at least two different thermoplastic materials, wherein a first thermoplastic material comprises a first thermoplastic polymer, and a second thermoplastic material comprises at least a second thermoplastic polymer and at least one degrading enzyme able to degrade the first thermoplastic polymer. The second thermoplastic material has a transformation temperature lower than the transformation temperature of the first thermoplastic material, and the first and second plastic materials are at least partially adjacent in the multicomponent product.
Claims20
1-19. (canceled)
A multicomponent plastic product comprising at least two different thermoplastic materials, wherein
- a first thermoplastic material comprises a first thermoplastic polymer, and
- a second thermoplastic material comprises at least a second thermoplastic polymer and at least one degrading enzyme able to degrade the first thermoplastic polymer,
- wherein the second thermoplastic material has a transformation temperature (Tf) lower than the transformation temperature (Tf) of the first thermoplastic material and wherein the first and second plastic materials are at least partially adjacent in the multicomponent product.
A process for manufacturing a multicomponent plastic product comprising the steps:
- a) selecting a first thermoplastic material comprising a first thermoplastic polymer;
- b) selecting a degrading enzyme able to degrade the first thermoplastic polymer;
- c) mixing the degrading enzyme with a second thermoplastic polymer at a temperature at which said second thermoplastic polymer is in a partially or totally molten state, to obtain a second thermoplastic material, wherein the second thermoplastic material has a transformation temperature (Tf) lower than the transformation temperature (Tf) of the first thermoplastic material;
- and
- d) coextruding or coinjecting or extruding coating said thermoplastic materials to obtain a multicomponent product.
A process of manufacturing a multicomponent product comprising the steps:
- a) selecting a first plastic material comprising a first thermoplastic polymer;
- b) selecting a degrading enzyme able to degrade the first thermoplastic polymer;
- c) mixing the degrading enzyme with a second thermoplastic polymer at a temperature at which said second thermoplastic polymer is in a partially or totally molten state, to obtain a second plastic material;
- and
- d) processing said thermoplastic materials to obtain a multicomponent product, at processing temperatures wherein said materials are in partially or totally molten state and wherein the processing temperature for the second plastic material is lower than the processing temperature of the first thermoplastic material.
Dependencies are inferred from the claim text.