Claims
- 1. In an improved process for the extrusion processing of a thermo plastic polymer formulation using extrusion aids the improvement comprising utilizing an extrusion aid prepared by mixing a paraffinic hydrocarbon wax and calcium salt of a fatty acid while heating to a temperature of at least 150.degree.C and thereafter cooling to recover a solid, glass-like, friable composition, said paraffinic hydrocarbon wax having a drop melting point of at least 110.degree.F, an oil content of not greater than 50 percent by weight and a needle penetration value at 77.degree.F in the range of 1 mm to 20 mm, and said fatty acid being a C.sub.16 -C.sub.24 aliphatic hydrocarbon monocarboxylic acid or mixtures thereof.
- 2. The invention of claim 1 wherein the composition contains additional processing aids.
- 3. The invention of claim 1 wherein at least 30 weight percent calcium salt is employed in preparing the composition
- 4. The invention of claim 1 wherein the composition is prepared using a paraffinic hydrocarbon wax having a drop melting point of at least 145.degree.F, an oil content of not greater than 20 weight percent, and an needle penetration value at 77.degree.F in the range of 1 mm to 10 mm.
- 5. The invention of claim 1 wherein the composition is prepared using a fatty acid selected from the group consisting of palmitic acid, stearic acid, oleic acid, linoleic acid, eicosanic acid, behenic acid, tall oil fatty acid, or mixtures thereof.
Parent Case Info
This is a division of application Ser. No. 465,789, filed May 1, 1974, now U.S. Pat. No. 3,883,363.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
2716073 |
Cunder |
Aug 1955 |
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Divisions (1)
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Number |
Date |
Country |
Parent |
465789 |
May 1974 |
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