Poly (trimethylene terephthalate) pellets and method for...

Details Poly (trimethylene terephthalate) pellets and method for... Poly (trimethylene terephthalate) pellets and method for...

2005-07-12

2005-07-12

Acquah, Samuel A. (Department: 1711)

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

C528S481000, C528S491000, C525S444000

Reexamination Certificate

active

06916535

ABSTRACT:
The present invention provides a poly(trimethylene terephthalate) pellet comprising 80 wt % or more of trimethylene terephthalate repeating units copolymerized with bis(3-hydroxypropyl) ether at a ratio in a range from 0.01 to 2 wt %, wherein an amount of terminal carboxyl groups is 25 milli-equivalent/kg or less and an intrinsic viscosity is in a range from 0.8 to 2 dl/g, which pellet has an L* value of 75 or more, a b* value in a range from −2 to 5, and a weight in a range from 1 to 50 mg/piece.

REFERENCES:
patent: 6093786 (2000-07-01), Kelsey
patent: 6242558 (2001-06-01), Kelsey
patent: 6441129 (2002-08-01), Duh et al.
patent: 2001/0056172 (2001-12-01), Duh et al.
patent: 2000159875 (2000-06-01), None
patent: 2000-159875 (2000-06-01), None
patent: WO 97/23543 (1997-07-01), None
patent: WO 98/23662 (1998-06-01), None
patent: WO 99/11709 (1999-03-01), None

Affiliated with

Also associated with

Rating

Poly (trimethylene terephthalate) pellets and method for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Poly (trimethylene terephthalate) pellets and method for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Poly (trimethylene terephthalate) pellets and method for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3393749