Claims
- 1. A process for melt blowing a degradable polyolefin resin into a film comprising:
- extruding a polyethylene composition comprising 55 to 98 wt% polyethylene resin; 30 to 1 wt% a filler selected from the group consisting of an inorganic carbonate, synthetic carbonate, talc, magnesium hydroxide, mica, natural or synthetic silicas and calcined clays, having a particle size less than 150 mesh; and 15 to 1 wt% metal carboxylate through a melt blowing die;
- blowing a bubble of said composition; and
- collapsing said bubble into a film.
- 2. A process according to claim 1 wherein:
- said polyethylene resin contains
- 25 to 1 wt% filler; and
- 10 to 1 wt% metal carboxylate.
- 3. A process according to claim 1 wherein the components are:
- at least 55 wt % and up to 88 wt% polyethylene resin;
- 43 to 10 wt% filler; and
- 10 to 1 wt% metal carboxylate.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part application of U.S. patent application Ser. No. 07/933,685 filed Aug. 24, 1992 entitled "CHEMICALLY DEGRADABLE/COMPOSTABLE PLASTICS", now abandoned.
US Referenced Citations (13)
Foreign Referenced Citations (2)
Number |
Date |
Country |
9104956 |
Oct 1974 |
JPX |
3161036 |
Jul 1988 |
JPX |
Non-Patent Literature Citations (2)
Entry |
Garbage, May/Jun. 1990, "Degradable Plastics", John Donnelly, pp. 42-45. |
Degradable Materials: Perspectives, Issues & Opportunities "Introduction" Ramani Narayau, pp. 1-10. |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
933685 |
Aug 1992 |
|