Liquid additive composition
A liquid additive composition containing a fluoropolymer; an organophosphite antioxidant; a sterically hindered phenol antioxidant; and one or more hydrocarbon polymer dispersants provided improved processing and product appearance in film applications, extrusion blow molding and as a masterbatch enhancer.
1. A liquid additive composition, comprising:
a fluoropolymer;
an organophosphite antioxidant;
a sterically hindered phenol antioxidant;
two different polymerized C4-olefin dispersants;
a polymeric dispersant that is not a polymerized C4-olefin;
a micronized polyethylene or polyethylene-containing wax; and
silica.
2. The liquid additive composition according to claim 1 , wherein the fluoropolymer is present in an amount of 10 to 25 wt %.
3. The liquid additive composition according to claim 1 , wherein the organophosphite antioxidant is present in an amount of 15 to 35 wt %.
4. The liquid additive composition according to claim 1 , wherein the sterically hindered phenol antioxidant is present in an amount of 0.5 to 10 wt %.
5. The liquid additive composition according to claim 1 , wherein the two different polymerized C4-olefin dispersants are present in an amount of 30 to 75 wt %.
6. The liquid additive composition according to claim 1 , wherein the fluoropolymer is a polyvinylidene fluoride.
7. The liquid additive composition according to claim 1 , further comprising an additional antioxidant.
8. A liquid additive composition, consisting of:
a fluoropolymer;
an organophosphite antioxidant;
a sterically hindered phenol antioxidant;
two different polymerized C4-olefin dispersants;
a polymeric dispersant that is not a polymerized C4-olefin;
a micronized polyethylene or polyethylene-containing wax; and
silica.
9. An article comprising the liquid additive composition according to claim 1 .
10. A film comprising the liquid additive composition according to claim 1 .
11. An extruded blow molded article comprising the liquid additive composition according to claim 1 .
12. A masterbatch comprising the liquid additive composition according to claim 1 .
13. A process for improving the surface appearance of a film, comprising adding to the film or a precursor to the film the liquid additive composition according to claim 1 .
14. A method of preparing a film that includes a step of adding the liquid additive composition according to claim 1 .
15. The liquid additive composition according to claim 1 , wherein the polymeric dispersant that is not a polymerized C4-olefin is present in an amount of 0.1 to 5 wt %.
16. The liquid additive composition according to claim 8 , wherein the fluoropolymer is present in an amount of 10 to 25 wt %.
17. The liquid additive composition according to claim 8 , wherein the organophosphite antioxidant is present in an amount of 15 to 35 wt %.
18. The liquid additive composition according to claim 8 , wherein the sterically hindered phenol antioxidant is present in an amount of 0.5 to 10 wt %.
19. The liquid additive composition according to claim 8 , wherein the two different polymerized C4-olefin dispersants are present in an amount of 30 to 75 wt %.
20. The liquid additive composition according to claim 8 , wherein the fluoropolymer is a polyvinylidene fluoride.