Polyester compositions of low residual aldehyde content

Details Polyester compositions of low residual aldehyde content Polyester compositions of low residual aldehyde content

2006-11-21

2006-11-21

Moore, Margaret G. (Department: 1712)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C428S480000, C525S176000

Reexamination Certificate

active

07138457

ABSTRACT:
A mixture of a polyester, such as poly(ethylene terephthalate) PET, and a suitable stabilizer selected from the group consisting of polyhydric alcohol-containing polymers and copolymers derived from 2-propenoic acid ester monomers, when extrusion compounded exhibits a lower residual acetaldehyde content than does PET alone when similarly treated. The invention pertains to any polyester used in the manufacture of bottles or containers which in turn are used to store consumer materials, especially food, beverages and most especially water.

REFERENCES:
patent: 4361681 (1982-11-01), Bernhardt
patent: 4394470 (1983-07-01), Werner et al.
patent: 4837115 (1989-06-01), Igarashi et al.
patent: 4873279 (1989-10-01), Nelson
patent: 5258233 (1993-11-01), Mills et al.
patent: 5266413 (1993-11-01), Mills et al.
patent: 5340884 (1994-08-01), Mills et al.
patent: 5459224 (1995-10-01), Pruett et al.
patent: 5648032 (1997-07-01), Nelson et al.
patent: 5650469 (1997-07-01), Long et al.
patent: 5656221 (1997-08-01), Schumann et al.
patent: 5681879 (1997-10-01), Yamamoto et al.
patent: 5856385 (1999-01-01), Mehrer et al.
patent: 6013415 (2000-01-01), Sakurai et al.
patent: 6191209 (2001-02-01), Andrews et al.
patent: 6790499 (2004-09-01), Andrews et al.
patent: 6936204 (2005-08-01), Al-Malaika
patent: 2003/0032737 (2003-02-01), Andrews et al.
patent: 2005/0176859 (2005-08-01), Tinkl et al.
patent: 0191701 (1986-08-01), None
patent: 0714832 (1996-06-01), None
patent: 0826713 (1998-03-01), None
patent: 93/20147 (1993-10-01), None
patent: 93/23474 (1993-11-01), None
patent: 98/07786 (1998-02-01), None
patent: 98/39388 (1998-09-01), None
Derwent Abstract of JP 04-089829, Tokita et al. Mar. 1992.
Derwent Abstr. 1986:182855 for JP 60235061 (1985).
Chem. Abstr. 108:151810 for JP 62257959 (1987).

Affiliated with

Also associated with

Rating

Polyester compositions of low residual aldehyde content does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyester compositions of low residual aldehyde content, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyester compositions of low residual aldehyde content will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3705272