Claims
- 1. Plexifilamentary film-fibril strands, consisting of poly(1,3-propylene terephthalate) and copolymers thereof.
- 2. Plexifilamentary film-fibril strands, consisting of a blend of poly(1,3-propylene terephthalate) and copolymers thereof with a polyolefin selected from the group consisting of polyethylene and polypropylene.
- 3. The plexifilamentary film-fibril strands of claim 2, wherein the poly(1,3-propylene terephthalate) is present at 95 to 5 wgt % and the polyolefin is present at 5 to 95 wgt %, based on the weight of the blend.
- 4. Plexifilamentary film-fibril strands, consisting of poly(1,3-propylene terephthalate) and copolymers thereof made by flash spinning in a spin agent selected from the group consisting of 1,1,2-trichloro-2,2-difluoroethane, isomers thereof; 1,2-dichloroethylene; and dichloromethane.
- 5. Plexifilamentary film-fibril strands, consisting of a blend of poly(1,3-propylene terephthalate) and copolymers thereof with a polyolefin selected from the group consisting of polyethylene and polypropylene made by flash spinning in a spin agent of dichloromethane.
- 6. The plexifilamentary film-fibril strands of claim 5, wherein the poly(1,3-propylene terephthalate) is present at 95 to 5 wgt % and the polyolefin is present at 5 to 95 wgt %, based on the weight of the blend.
REFERENCES TO RELATED APPLICATIONS
This is a divisional application of U.S. patent application Ser. No. 09/533,397 filed Mar. 22, 2000, now U.S. Pat. No. 6,458,304.
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