Bonded composites of cellulose fibers polyethylene
AssigneeNovacor Chemicals Ltd.
InventorBohuslav V. Kokta
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Abstract
Composites are made from cellulose fibers dispersed in a matrix of polyethylene and an isocyanate and bonded thereto during subsequent extrusion and or molding. The isocyanate improves adhesion between the cellulose fibers and the polyethylene. The improved adhesion results in improved tensile properties in the composite.
Claims23
A composite consisting essentially of discontinuous cellulose fibers dispersed in a matrix of polyethylene and bonded thereto through a compound containing at least one isocyanate group, said polyethylene being selected from the group consisting of homopolymers of ethylene and copolymers of a major proportion of ethylene and a minor portion of a higher olefin, said compound being present in an amount of about 0.1 to about 10 wt. % of the composite.
Cellulosic fibers coated with polyethylene and bonded thereto through a compound containing at least one isocyanate group, said polyethylene being selected from the group consisting of homopolymers of ethylene and copolymers of a major proportion of ethylene and a minor portion of a higher olefin, said compound being present in an amount of about 0.1 to about 10 wt. % of the composite.
Dependencies are inferred from the claim text.