Modification of virgin and/or recycled construction polymers, using poly vinyl butyral (PVB), or recycled PVB from industrial waste streams and an alloying copolymer
AssigneeShark Solutions Aps
InventorsJens Holmegaard, Frank Mundt
Life of this patent
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Abstract
Plasticizer composition for a construction polymers. The plasticizer composition includes 35-65% (by weight) of polyvinylbutyral and 65-35% (by weight) of one or more alloying copolymers. The construction polymer is e.g. polyvinyl chloride, polypropylene, poly urethane, acryl butadiene styrene or polyethylene and/or mixtures thereof. The resulting polymer construction polymer constitutes 25-90% by weight and the plasticizer composition constitutes 10-75% by weight of the polymer blend composition. The components of the plasticizer composition are non-migrating and provide surprising physical properties of the final polymer composition.
Claims17
A polymer composition comprising a construction polymer and a plasticizer composition, wherein the construction polymer comprises 25-90% by weight and the plasticizer composition comprises 10-75% by weight of the polymer composition;
- and wherein said plasticizer composition comprises 35-65% (by weight) of polyvinylbutyral (PVB) and 65-35% (by weight) of one or more alloying copolymers, wherein the one or more alloying copolymers includes an Ethylene vinyl alcohol Copolymer Resin.
A method of modifying a construction polymer comprising the steps of:
- mixing 25-90% by weight of the construction polymer and 10-75% by weight of a plasticizer composition, wherein the plasticizer composition comprises 35-65% (by weight) of polyvinylbutyral (PVB) and 65-35% (by weight) of one or more alloying copolymers, wherein the one or more alloying copolymers includes an Ethylene vinyl alcohol Copolymer Resin;
- heating the mixed construction polymer and plasticizer composition above a melting point;
- and
- shaping the heated mixed construction polymer and plasticizer composition.
A method for providing a polymer composition, the polymer composition comprising a construction polymer and a plasticizer composition, wherein the construction polymer comprises 25-90% by weight and the plasticizer composition comprises 10-75% by weight of the polymer composition, and wherein the plasticizer composition comprises 35-65% (by weight) of polyvinylbutyral (PVB) and 65-35% (by weight) of at least one alloying copolymer, wherein the at least one alloying copolymer includes an Ethylene vinyl alcohol Copolymer Resin, the method comprising:
- modifying the construction polymer by mixing 25-90% by weight of the construction polymer and 10-75% by weight of the plasticizer composition, heating the mixed construction polymer and plasticizer composition above a melting point and shaping the heated mixed construction polymer and plasticizer composition.
Dependencies are inferred from the claim text.