Lactic acid residue containing polymer composition and product h

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

528361, 525413, 525415, C08G 6308

Patent

active

061144959

ABSTRACT:
The invention relates to a lactic acid residue containing polymer composition and product having improved stability and to methods for the preparation and use thereof. The lactic acid residue containing polymer preferably includes a polylactide polymer having a number average molecular weight of between about 25,000 and about 200,000, lactide, if present at all, present in a concentration of less than 0.5 wt % based on the weight of the composition, and deactivating agents. Articles which can be manufactured from the lactic acid residue containing polymer composition include fibers, coated paper, films, moldings, and foam.

REFERENCES:
patent: 5142023 (1992-08-01), Gruber et al.
patent: 5180765 (1993-01-01), Sinclair
patent: 5216050 (1993-06-01), Sinclair
patent: 5247059 (1993-09-01), Gruber et al.
patent: 5252642 (1993-10-01), Sinclair et al.
patent: 5274073 (1993-12-01), Gruber et al.
patent: 5319038 (1994-06-01), Tunc
patent: 5338822 (1994-08-01), Gruber et al.
patent: 5359026 (1994-10-01), Gruber
patent: 5382617 (1995-01-01), Kelly, Jr. et al.
patent: 5386004 (1995-01-01), Obuchi et al.
patent: 5424346 (1995-06-01), Sinclair
patent: 5444113 (1995-08-01), Sinclair et al.
patent: 5475080 (1995-12-01), Gruber et al.
patent: 5484881 (1996-01-01), Gruber et al.
patent: 5496923 (1996-03-01), Suizu et al.
patent: 5502158 (1996-03-01), Sinclair et al.
patent: 5525706 (1996-06-01), Gruber et al.
patent: 5536807 (1996-07-01), Gruber et al.
patent: 5594095 (1997-01-01), Gruber et al.
patent: 5616783 (1997-04-01), Yoshida et al.
patent: 5679767 (1997-10-01), Suizu et al.
patent: 5686540 (1997-11-01), Kakizawa
patent: 5688530 (1997-11-01), Bodmer et al.
patent: 5714573 (1998-02-01), Randall et al.
patent: 5726220 (1998-03-01), Tokushige et al.
patent: 5760119 (1998-06-01), Rafler et al.
patent: 5770682 (1998-06-01), Ohara et al.
patent: 5844066 (1998-12-01), Kakizawa
Muller, "Chapter 2--Metal Deactivators, " Plastic Additives Handbook, 3rd Edition, cover pages and pp. 105-128, Copyright.COPYRGT.Carl Hanser Verlag Muhchen Wien (1990).
Cam, D. et al., "Influence of residual monomers and metals on poly (L-lactide) thermal stability", Polymer 38(8):1879-1884 (1997).
Soderg.ang.rd, A. et al., "Changes in peroxide melt-modified poly(L-lactide)", Ind. Eng. Chem. Res. 34:1203-1207 (1995).
Soderg.ang.rd, A., "Chemical and morphological changes in peroxide-stabilized poly(L-lactide)", Chapter 9, Hydrogels and Biodegradable Polymers for Bioapplications, Ottenbrite et al., Eds., from a symposium sponsored by the Division of Polymer Chemistry, Inc., at the 208th National Meeting of the American Chemical Society, Washington, D. C., Aug. 21-26, 1994; pp. 103-117.
Soderg.ang.rd, A., "A Stability study of poly(L-lactide) in the melt", Annual Translations of the Nordic Rheology Society, 3:6-8 (1995).
Soderg.ang.rd, A. et al., "Stabilization of poly(L-lactide) in the melt" (source publication illegible), .COPYRGT.1994 Elsevier Science Limited, #0141-3910/94; pp. 25-30.
Soderg.ang.rd, A. et al., "A XPS study of the catalytic tin in poly(L-lactide)", Polymer Reprints 37(1):685-686 (1996).
Wachsen, O. et al., "Thermal degradation of of poly-L-lactide--studies on kinetics, modelling and melt stabilisation", Polymer Degradation and Stability 57;87-94 (1997)
Witzke, D. et al., "Reversible kinetics and thermodynamics of the homopolymerization of L-lactide with 2-ethylhexanoic acid tin(II) salt", Macromolecules 30:7075-7085 (1997).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Lactic acid residue containing polymer composition and product h does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lactic acid residue containing polymer composition and product h, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lactic acid residue containing polymer composition and product h will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2213271

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.