Mixtures of polymers including a halogen-containing polymer and compatibilized with a grafted aliphatic polyester
First Claim
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1. Mixtures of polymers consisting essentially of:
- one halogen-containing polymeranother polymer which has substantially no compatibility with said one halogen-containing polymer, anda grafted aliphatic polyester as compatibiizer wherein (i) the halogen-containing polymer is selected from the group consisting of PVC, chlorinated PVC, plasticized PVC, PVC-based compounds, PVDF and its copolymers and PVF3 and (ii) which include another polymer selected from the group consisting of EVOH, PB and PA.
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Abstract
The invention relates to mixtures of polymers including at least one halogen-containing polymer and compatibilized with a grafted aliphatic polyester. The compatibilizing agent may be, for example, a polycaprolactone grafted with maleic anhydride or glycidyl methacrylate.
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Citations
12 Claims
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1. Mixtures of polymers consisting essentially of:
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one halogen-containing polymer another polymer which has substantially no compatibility with said one halogen-containing polymer, and a grafted aliphatic polyester as compatibiizer wherein (i) the halogen-containing polymer is selected from the group consisting of PVC, chlorinated PVC, plasticized PVC, PVC-based compounds, PVDF and its copolymers and PVF3 and (ii) which include another polymer selected from the group consisting of EVOH, PB and PA. - View Dependent Claims (2, 3)
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4. Polymer having a substantially incompatible component consisting essentially of at least one halogen-containing polymer compatibilized with a grafted aliphatic polyester;
- said halogen-containing polymer including polyvinyl chloride, chlorinated polyvinyl chloride, plasticized polyvinyl chloride, polyvinyl chloride-based compound, polyvinyl difluoride and its copolymers and polytrifluoroethylene;
said grafted aliphatic polyester compatibilizes said halogen-containing polymer with another polymer being substantially incompatible with it;
said other polymer including ethylene vinyl alcohol copolymers, polyesters including polyethylene terephthalate, and polybutylene terephthalate, polyamides, said aliphatic polyester including linear polylactones including polyaprolactone, polycaprolactone, polypivalolactone or polyenantholactone or polycaprylolactone, and at least one monomer being grafted onto the aliphatic polyester selected from the group consisting of unsaturated carboxylic acids, their salts, their esters and their anhydrides, unsaturated products carrying epoxidized functional groups, vinyl esters, styrene and its derivatives, the grafted monomer being less than 15% by weight of the aliphatic polyesters. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
- said halogen-containing polymer including polyvinyl chloride, chlorinated polyvinyl chloride, plasticized polyvinyl chloride, polyvinyl chloride-based compound, polyvinyl difluoride and its copolymers and polytrifluoroethylene;
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12. Mixtures of polymers consisting essentially of:
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one halogen-containing polymer another polymer which has substantially no compatibility with said one halogen-containing polymer, and a grafted aliphatic polyester as compatibiizer wherein (i) the halogen-containing polymer is selected from the group consisting of PVC, chlorinated PVC, plasticized PVC, PVC-based compounds, PVDF and its copolymers and PVF3 and (ii) which include another polymer selected from the group consisting of EVOH, PBT, PS and PA.
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Specification