| 摘要 |
A composition having application as coatings on paper or cardboard, is obtained by degrading a composition of a naturally occurring wax and a polyolefin. Specified waxes are paraffin, microcrystalline, soft wax from de-oiled paraffin, fractionated microcrystalline, ozokerite, candelilla, esparto, ceresine, Utah, beeswax, Chinese inset, montan and carnauba. The products may be blended with waxes or polymers.ALSO:A composition having application as coatings on paper or cardboard, is obtained by degrading a composition of a polyolefin and a naturally occurring wax. Degradation may be effected by heating, by mechanical degradation or by the use of high shear, and optionally hydrogen may be present. Specified waxes are paraffin, microstystalline, soft wax from deoiled paraffin, fractionated microcrystalline, ozokerite, candelilla, esparto, ceresine, Utah, beeswax, Chinese insect, montan and carnauba. The products may be blended with waxes or polymers.ALSO:A composition for use as a coating on paper or cardboard used in making milk cartons, comprises the product of the degradation of a composition of a polyolefin and a naturally occurring wax. In Example 4 polyethylene blended with microcrystalline wax is degraded by heating at 350 DEG C. The product with/without paraffin is used for dip-coating milk carton stock. |
