Low melting polyester polymers

Details Low melting polyester polymers Low melting polyester polymers

2011-05-03

2011-05-03

Patterson, Marc A (Department: 1782)

Stock material or miscellaneous articles

Hollow or container type article

C428S034200, C428S035700, C428S035900, C428S036900

Reexamination Certificate

active

07935399

ABSTRACT:
A bulk of polyester polymer particles comprising polyester polymer comprising greater than 75% virgin polyester polymer, the particles having:A) an It.V. of at least 0.72 dl/g, andB) 10 ppm or less of residual acetaldehyde; andC) at least two melting peaks, wherein one of said at least two melting peaks is a low peak melting point within a range of 140° C. to 220° C. and having a melting endotherm area of at least the absolute value of 1 J/g.The particles may also have a degree of crystallinity within a range of 20% and a maximum degree of crystallinity Tcmaxdefined by the equation:in-line-formulae description="In-line Formulae" end="lead"?Tcmax=50%−CA−OHin-line-formulae description="In-line Formulae" end="tail"?where CA is the total mole % of all carboxylic acid residues other than terephthalic acid residues, based on 100 mole % of carboxylic acid residues, and OH is the total mole % of all hydroxyl functional compound residues other than ethylene glycol residues, based on 100 mole % of hydroxyl functional compounds residues. The preforms and bottles made from these particles can be obtained by melt processing these particles at either lower overall power, faster screw speeds, lower residence time, or lower overall cycle time to thereby reduce the level of residual acetaldehyde generated in the melt.

REFERENCES:
patent: 3451971 (1969-06-01), Lazarus
patent: 3624040 (1971-11-01), Rath et al.
patent: 3631153 (1971-12-01), Carter et al.
patent: 3953404 (1976-04-01), Borman
patent: 3960807 (1976-06-01), McTaggart
patent: 4100142 (1978-07-01), Schaefer et al.
patent: 4260735 (1981-04-01), Bander et al.
patent: 4267310 (1981-05-01), Landoll
patent: 4289871 (1981-09-01), Rowan et al.
patent: 4501878 (1985-02-01), Adams
patent: 4613664 (1986-09-01), Tate et al.
patent: 4619987 (1986-10-01), Saiki et al.
patent: 4647650 (1987-03-01), Sasaki et al.
patent: 5409750 (1995-04-01), Hamada et al.
patent: 5442036 (1995-08-01), Beavers et al.
patent: 5444144 (1995-08-01), Tanaka et al.
patent: 5474111 (1995-12-01), Williamson et al.
patent: 5540868 (1996-07-01), Stouffer et al.
patent: 5573820 (1996-11-01), Harazoe et al.
patent: 5648032 (1997-07-01), Nelson et al.
patent: 5714262 (1998-02-01), Stouffer et al.
patent: 5744074 (1998-04-01), Stouffer et al.
patent: 5886133 (1999-03-01), Hilbert et al.
patent: 5898058 (1999-04-01), Nichols et al.
patent: 5902539 (1999-05-01), Schmidt et al.
patent: 5980797 (1999-11-01), Shelby et al.
patent: 6048957 (2000-04-01), Ekart et al.
patent: 6066713 (2000-05-01), Mrose et al.
patent: 6090898 (2000-07-01), Tsunekawa et al.
patent: 6099778 (2000-08-01), Nelson et al.
patent: 6194536 (2001-02-01), Schmidt et al.
patent: 6200659 (2001-03-01), Fujimori et al.
patent: 6235228 (2001-05-01), Nicholl et al.
patent: 6316584 (2001-11-01), Seidel et al.
patent: 6320014 (2001-11-01), Takahashi et al.
patent: 6335422 (2002-01-01), Schiavone
patent: 6339109 (2002-01-01), Day et al.
patent: 6344539 (2002-02-01), Palmer
patent: 6384180 (2002-05-01), Jernigan et al.
patent: 6395865 (2002-05-01), Schmidt et al.
patent: 6472500 (2002-10-01), Dhawan et al.
patent: 6500915 (2002-12-01), Fujimori et al.
patent: 6517762 (2003-02-01), Tsunekawa et al.
patent: 6559271 (2003-05-01), Schaaf et al.
patent: 6586558 (2003-07-01), Schmidt et al.
patent: 6613259 (2003-09-01), Takahashi et al.
patent: 6616968 (2003-09-01), Bostrom et al.
patent: 6669986 (2003-12-01), Mushiake et al.
patent: 6703474 (2004-03-01), Fujimori et al.
patent: 6710158 (2004-03-01), Edwards et al.
patent: 6903154 (2005-06-01), Stafford et al.
patent: 2001/0034431 (2001-10-01), Schiavone
patent: 2002/0128427 (2002-09-01), Schaaf et al.
patent: 2003/0144459 (2003-07-01), Fujimori et al.
patent: 2005/0065318 (2005-03-01), Jernigan et al.
patent: 2005/0085620 (2005-04-01), Bruckmann
patent: 2005/0154183 (2005-07-01), Ekart et al.
patent: 2005/0196566 (2005-09-01), Colhoun et al.
patent: 2005/0215753 (2005-09-01), Otto et al.
patent: 2006/0046004 (2006-03-01), Ekart et al.
patent: 2006/0149026 (2006-07-01), Jernigan et al.
patent: 2007/0135614 (2007-06-01), Ekart et al.
patent: 1950553 (1970-04-01), None
patent: 0492999 (1992-09-01), None
patent: 661326 (1995-07-01), None
patent: 0699700 (1996-03-01), None
patent: 0774477 (1997-05-01), None
patent: 1337751 (1973-11-01), None
patent: 46-41025 (1971-12-01), None
patent: 46041033 (1971-12-01), None
patent: 47039497 (1972-11-01), None
patent: 47042989 (1972-12-01), None
patent: 48005798 (1973-01-01), None
patent: 48007272 (1973-03-01), None
patent: 48026955 (1973-04-01), None
patent: 48031991 (1973-10-01), None
patent: 48079898 (1973-10-01), None
patent: 48038634 (1973-11-01), None
patent: 48038635 (1973-11-01), None
patent: 48038637 (1973-11-01), None
patent: 49005918 (1974-01-01), None
patent: 49010834 (1974-01-01), None
patent: 49006835 (1974-02-01), None
patent: 49006839 (1974-02-01), None
patent: 49009116 (1974-03-01), None
patent: 48045015 (1974-04-01), None
patent: 49045014 (1974-04-01), None
patent: 50039711 (1975-04-01), None
patent: 51042795 (1976-04-01), None
patent: 51127195 (1976-11-01), None
patent: 52123489 (1977-10-01), None
patent: 52129798 (1977-10-01), None
patent: 52129799 (1977-10-01), None
patent: 53051294 (1978-05-01), None
patent: 53051295 (1978-05-01), None
patent: 53052595 (1978-05-01), None
patent: 53105591 (1978-09-01), None
patent: 54135896 (1979-10-01), None
patent: 54163996 (1979-12-01), None
patent: 55089332 (1980-07-01), None
patent: 55149320 (1980-11-01), None
patent: 56008431 (1981-01-01), None
patent: 57038609 (1982-08-01), None
patent: 58109532 (1983-06-01), None
patent: 60-219226 (1985-11-01), None
patent: 62-297318 (1987-12-01), None
patent: 3-146707 (1991-06-01), None
patent: 3-161509 (1991-07-01), None
patent: 05-070567 (1993-03-01), None
patent: 1993070567 (1993-03-01), None
patent: 7001447 (1995-01-01), None
patent: 1996003301 (1996-01-01), None
patent: 1996283398 (1996-10-01), None
patent: 8-325364 (1996-12-01), None
patent: 1999152324 (1999-06-01), None
patent: 2000128970 (2000-05-01), None
patent: 2000128971 (2000-05-01), None
patent: 2000204145 (2000-07-01), None
patent: 2002322258 (2002-11-01), None
patent: 1997-0007952 (1997-05-01), None
patent: 2001-0089942 (2001-10-01), None
patent: 7113206 (1972-03-01), None
patent: WO 92/02569 (1992-02-01), None
patent: WO 01/14452 (2001-03-01), None
Syang-Peng Rwei, Properties of Poly(Ethylene Terephthalate)/Poly(Ethylene Naphthalate) Blends, Polymer Engineering and Science, Dec. 1999, vol. 39, No. 12, pp. 2475-2481.
Stefanos L. Sakellarides, The Effect of Isophthalic Acid Modification on the Thermal Crystallization of PET, Antec 1996, pp. 938-942.
Yoshitsugu Maruhashi, Primary Structure and Physical Properties of Poly(ethylene terephthalate)/Poly(ethylene naphthalate) Resin Blends, Polymer Engineering and Science, Jan. 2003, vol. 43, No. 1.
N. Torres, J.J. Rob, B. Boutevin, Study of thermal and mechanical properties of virgin and recycled poly(ethylene terephthalate) before and after injection molding, European Polymer Journal, 1999, pp. 2075-2080.
Darwin PR Kint, Antxon Martinex De Ilarduy, Abdelilah Alla, Sabastian Munoz-Guerra, Poly(ethylene terephthalate) Terpolyesters Containing Isophthalic and 5-tert-Buylisophthalic Units, 2002, pp. 124-134.
Darwin PR Kint, Antxon Martinez De Ilarduya, Sebastian Munoz-Guerra, Poly(ethylene terephthalate) Copolymers Containing 5-tert-Butyl Isophthalic Units, 2001, pp. 1994-2004.
Darwin PR Kint, Abdelilah Alla, Elise Deloret, Josefina L. Campos, Sebastian Munoz-Guerra, Synthesis, characterization and properties of poly(ethylene terephthalate)/poly(1,4-butylene succinate) block copolymers, 2002, pp. 1321-1330.
Darwin PR Kint, Antxou Martinez De Ilarduya, Antoni Sansalvado, Josep Ferrer, Jose I. Iribarren, Sebastian Munoz-Guerra, Structural Characterization and Thermal Properties of Poly(ethylene terephthalate) Copolymers Containing 2-Butyl-2-ethyl-1,3-propanediol, Journal of Applied Polymer Science, vol. 86 1077-1086, 2002, Wiley Periodicals, Inc.
Yongjian Liu, Crystallization and Melting Behavior of Liquid Crystalline Co-

Affiliated with

Also associated with

Rating

Low melting polyester polymers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low melting polyester polymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low melting polyester polymers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2678204