Polyolefin-based adhesive resins and method of making adhesive resins
AssigneeMSI Technology LLC.
InventorMitsuzo Shida
Life of this patent
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Abstract
A method for producing polyolefin-based adhesive resins having improved physical and optical properties and the improved adhesive resins thereby produced, eliminates at least one reheating and melting of polyolefin polymer, comprises polymerizing a monomer composition of at least one olefin, mixing the polymerization product without pelletizing the polyolefin polymer with at least one graft polymer or copolymer in a heated mixing device at a temperature above the melting point of the components, and recovering the resulting polyolefin-based adhesive resin.
Claims34
A method for producing improved polyolefin-based adhesive resin, comprising:
- a. polymerizing a monomer composition of at least one olefin to a pelletizable polyolefin;
- b. mixing with shear mixing, while minimizing cross-linking, at least 50% by weight based on the polyolefin-based adhesive resin of the polymerization product following polymerization without first pelletizing the pelletizable polyolefin with at least one graft polymer or copolymer in a heated mixing device at a temperature above the melting point of the components;
- and
- c. recovering the resulting polyolefin-based adhesive resin.
A method for producing improved polyolefin-based adhesive resin, comprising:
- a. polymerizing a monomer composition to a pelletizable polyolefin selected from the group consisting of an olefin having from 2 to 8 carbon atoms, a mixture of an olefin having from 2 to 8 carbon atoms with a second, different olefin having from 2 to 8 carbon atoms, a mixture of said olefin with at least one other unsaturated aliphatic hydrocarbon, a mixture of said olefin having from 2 to 8 carbon atoms with a second, different olefin having from 2 to 8 carbon atoms and at least one other unsaturated aliphatic hydrocarbon, a mixture of said olefin with at least one ethylenically unsaturated ester or acid, and mixtures thereof;
- b. mixing with shear mixing, while minimizing cross-linking, at least 50% by weight based on the polyolefin-based adhesive resin of the pelletizable polyolefin polymerization product following polymerization without first pelletizing with at least one graft polymer or copolymer in a heated mixing device at a temperature above the melting point of the components;
- and
- c. recovering the resulting polyolefin-based adhesive resin.
Dependencies are inferred from the claim text.