Process of making poly(trimethylene terephthalate) bulked...

Details Process of making poly(trimethylene terephthalate) bulked... Process of making poly(trimethylene terephthalate) bulked...

2006-04-18

2006-04-18

Tentoni, Leo B. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

With incorporating dye susceptible material or dyeing workpiece

C264S103000, C264S168000, C264S177130

Reexamination Certificate

active

07029611

ABSTRACT:
This invention relates to a poly(trimethylene terephthalate) BCF carpet yarn having a Y-shaped cross-section that has an modification ratio and a arm angle within a specific range, and a method for preparing it. The BCF carpet yarn has excellent bulk property and spinning efficiency, and a carpet made from it has good appearance, sense of touch, and tufting efficiency.

REFERENCES:
patent: 4492731 (1985-01-01), Bankar et al.
patent: 5662980 (1997-09-01), Howell et al.

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