WO2009094375A1 - Polyesters d'acide fumarique / polyols, leur fabrication et leur utilisation - Google Patents

Polyesters d'acide fumarique / polyols, leur fabrication et leur utilisation Download PDF

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Publication number
WO2009094375A1
WO2009094375A1 PCT/US2009/031540 US2009031540W WO2009094375A1 WO 2009094375 A1 WO2009094375 A1 WO 2009094375A1 US 2009031540 W US2009031540 W US 2009031540W WO 2009094375 A1 WO2009094375 A1 WO 2009094375A1
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Prior art keywords
polyester
polyol
fumaric acid
composition
units
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Ceased
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PCT/US2009/031540
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English (en)
Inventor
Mark W. Beltz
Timothy Cooper
Susan Butler
Erin Criswell
Michael D. Harrison
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Primary Products Ingredients Americas LLC
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Tate and Lyle Ingredients Americas LLC
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Publication of WO2009094375A1 publication Critical patent/WO2009094375A1/fr
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/52—Polycarboxylic acids or polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/87—Non-metals or inter-compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/91—Polymers modified by chemical after-treatment
    • C08G63/914—Polymers modified by chemical after-treatment derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/918—Polycarboxylic acids and polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/06—Unsaturated polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/13—Phenols; Phenolates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • C08L71/02—Polyalkylene oxides

Definitions

  • the present invention relates generally to the field of polymer chemistry. More particularly, it concerns polyesters, especially biomaterial polyesters, their manufacture, and use.
  • the present invention relates to a composition containing a polyester comprising about 1 mole part polyol units derived from a polyol having m -OH groups, wherein m is an integer from 3 to 8, and from about 0.98 mole parts fumaric acid units to about 3.03 mole parts fumaric acid units.
  • the polyol units are sorbitol units.
  • the composition is in a form selected from the group consisting of a plate, a tray, a bowl, a cup, a bowl lid, a cup lid, a fork, a spoon, a knife, a jewel case, and a packaging article.
  • the present invention relates to a method of manufacturing a composition containing a polyester comprising about 1 mole part polyol units derived from a polyol having m -OH groups, wherein m is an integer from 3 to 8, and from about 0.98 mole parts fumaric acid units to about 3.03 mole parts fumaric acid units.
  • the method includes combining about 1 mole part polyol, from about 0.98 mole parts fumaric acid to about 3.03 mole parts fumaric acid, and from about 0.0002 mole parts to about 0.0020 mole parts of a polyesterfication catalyst, to yield a combination of polyol and fumaric acid; maintaining the combination of polyol and fumaric acid under an inert atmosphere at a temperature from about 130 0 C to about 190 0 C for at least about 2 hr, to yield a molten polyester; and cooling the molten polyester, to yield the polyester.
  • DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS
  • the present invention relates to a composition containing a polyester comprising about 1 mole part polyol units derived from a polyol having m -OH groups, wherein m is an integer from 3 to 8, and from about 0.98 mole parts fumaric acid units to about 3.03 mole parts fumaric acid units.
  • Fumaric acid is an organic diacid having the structure:
  • a “fumaric acid unit” is a portion of a polyester which is derived from condensation of one molecule of fumaric acid with one or more alcohols.
  • Polyol is used herein to refer to any organic molecule containing more than two - OH groups, such as three, four, five, six, seven, or eight -OH groups.
  • a "polyol unit” is a portion of a polyester which is derived from condensation of one molecule of a polyol with one or more organic acids.
  • the polyol is selected from the group consisting of sorbitol, mannitol, glycerol, and xylitol.
  • the polyol is sorbitol:
  • CH 2 -OH and the polyol units are sorbitol units.
  • the polyester has essentially the structure:
  • the polyester can be prepared by techniques known in the art. Reaction conditions that have been found to produce polyesters having properties desirable for certain uses, as well as those uses, will be discussed below.
  • the conditions of the polyesterif ⁇ cation reaction can be selected to yield a polyester having any of a number of values for any of a number of physical properties.
  • One such physical property is the molecular weight of the polyester.
  • a polyester' s molecular weight can be defined as the weight- average molecular weight (MWw) or the number-average molecular weight (MWn).
  • MFI melt flow index
  • Still another physical property is the glass transition temperature (Tg).
  • the composition can contain other components.
  • the composition contains at least one component selected from the group consisting of a plasticizer, a pigment, and an oxidation inhibitor.
  • the composition can comprise two or more of these components.
  • the plasticizer can be any material that renders the composition less brittle than it would be in the absence of the material.
  • the plasticizer is a polyethylene glycol.
  • the polyester in dry, solid form, typically has a white color. If the composition is intended for uses where a different color is desired, a pigment can be included. Any pigment known in the art for use in a polyester composition can be used.
  • the fumaric acid units contain a carbon-carbon double bond. This double bond is susceptible to oxidation, which can lead to degradation of the polyester molecule or cross- linking of polyester molecules.
  • the oxidation inhibitor can be any material that renders the fumaric acid units less susceptible to oxidation. In one embodiment, the oxidation inhibitor is selected from the group consisting of 2,5-di-te/t-butyl hydroquinone and vitamin E.
  • the proportions of the polyester and the at least one component selected from the group consisting of a plasticizer, a pigment, and an oxidation inhibitor are not critical.
  • the composition contains from about 5 weight parts to about 90 weight parts polyester; if included, from about 0.1 weight parts to about 20 weight parts plasticizer; if included, from about 0.1 weight parts to about 1 weight part pigment, and, if included, from about 0.1 weight parts to about 1 weight part oxidation inhibitor.
  • the plasticizer is a polyethylene glycol and the oxidation inhibitor is 2,5-di-te/t-butyl hydroquinone.
  • the composition can also comprise other polymers in addition to the polyester in the form of a non-coreacted blend.
  • a non-coreacted blend can be identified by contacting the putative blend with a solvent in which one of the polymers is soluble and the other is not; if greater than or equal to 5 wt% of the soluble polymer is removed from the putative blend, a non-coreacted blend is indicated.
  • a non-coreacted blend can be identified as having two glass transition temperatures (Tgs) as measured by differential scanning calorimetry (DSC), although this technique may not be effective in situations in which the Tgs of the two polymers are close enough to have overlapping DSC peaks.
  • non-coreacted blends of two polymers are also contemplated.
  • the composition further comprises a starch. In one embodiment, the composition further comprises polylactic acid.
  • the proportions of the polyester and the starch or polylactic acid are not critical.
  • the composition contains from about 5 weight parts to about 90 weight parts polyester and from about 10 weight parts to about 95 weight parts of a second polymer selected from the group consisting of starch or polylactic acid.
  • the composition contains from about 5 weight parts to about 50 weight parts polyester and from about 50 weight parts to about 95 weight parts polylactic acid.
  • the composition contains from about 10 weight parts to about 30 weight parts polyester and from about 70 weight parts to about 90 weight parts polylactic acid.
  • the polyol and fumaric acid, and their corresponding units in the polyester are derived from biomass.
  • “Derived from biomass” means that substantially all the carbon atoms in the polyol and the fumaric acid were fixed from atmospheric carbon dioxide within about one hundred years before production of the polyester, such as within about ten years, about two years, or about one year.
  • fumaric acid can be extracted from fumitory (Fumaria officinalis), bolete mushrooms (e.g., Boletus fomentarius var. pseudo- igniarius), lichen, and Iceland moss, or it can be produced by the oxidation of furfural, which reactant can be derived from bran, corn cob, or wood.
  • An exemplary polyol, sorbitol can be extracted from drupes (stone fruit) or berries of the genus Sorbus.
  • the present invention relates to a method of manufacturing a composition containing a polyester comprising about 1 mole part polyol units derived from a polyol having m -OH groups, wherein m is an integer from 3 to 8, and from about 0.98 mole parts fumaric acid units to about 3.03 mole parts fumaric acid units.
  • the method includes combining about 1 mole part polyol, from about 0.98 mole parts fumaric acid to about 3.03 mole parts fumaric acid, and from about 0.0002 mole parts to about 0.0020 mole parts of a polyesterfication catalyst, to yield a combination of polyol and fumaric acid; maintaining the combination of polyol and fumaric acid under an inert atmosphere at a temperature from about 130 0 C to about 190 0 C for at least about 2 hr, to yield a molten polyester; and cooling the molten polyester, to yield the polyester.
  • the polyesterification catalyst can be any material known in the art for catalysis of esterification.
  • the polyesterification catalyst is selected from the group consisting of tin(II) chloride, tin(II) octonate, sulfuric acid, n-butyl stannoic acid, p-toluene sulfonic acid, and mixtures thereof.
  • the combining step can be performed in any appropriate reaction vessel known in the art.
  • the materials can be combined in any order.
  • the result of the combining step is a combination of polyol and fumaric acid.
  • the combination of polyol and fumaric acid is maintained under an inert atmosphere at a temperature from about 130 0 C to about 190 0 C for at least about 2 hr.
  • the temperature is from about 130 0 C to about 165°C. It should be borne in mind that electrical heaters can produce hot spots having local temperatures greater than about 190 0 C even if the electrical heater is set to a nominal temperature below about 190 0 C, such as about 165°C. Therefore, it is desirable to heat the reaction vessel non-electrically.
  • the inert atmosphere can be nitrogen, argon, or a mixture thereof.
  • the duration and temperature are typically enough to yield a molten polyester.
  • the molten polyester is then cooled, such as to ambient temperature, to yield the polyester.
  • the cooling step can be performed in the reaction vessel or in another vessel.
  • the cooling step involves extrusion of the molten polyester to yield a sheet of cooled polyester.
  • the sheet can be produced by any technique known in the art of monolayer or coextrusion. Such techniques include sheet extrusion either as a single extruded layer or a plurality of coextruded layers.
  • molten material from an extruder flows through a flat die to form a sheet which is passed through a chill roll stack.
  • Chill roll stacks typically consist of at least three cooled rolls.
  • the sheet produced has a thickness of between about 5 mils and about 20 mils.
  • the molten polyester is coextruded with a second polymer selected from the group consisting of starch or polylactic acid, as described above.
  • the molten polyester is coextruded with at least one component selected from the group consisting of a plasticizer, a pigment, and an oxidation inhibitor, as described above.
  • the sheet can be stored until later use.
  • the sheet of the composition is molded to form a plate, a tray, a bowl, a cup, a bowl lid, a cup lid, a fork, a spoon, a knife, a jewel case, and a packaging article. Molding techniques are known in the art.
  • the composition is heat resistant.
  • “Heat resistant” herein means the composition will have a heat deflection temperature (HDT), as can be measured according to ASTM Method D 648-06, of at least about 60 0 C.
  • the composition is heat resistant and has a melting temperature (Tm), such as can be measured by differential scanning calorimetry (DSC), such that a plate, a tray, a bowl, a cup, a bowl lid, a cup lid, a fork, a spoon, a knife, a jewel case, and a packaging article formed from the composition to be used in the packaging of hot foods and beverages or to be readily stored and transported at high temperatures (such as from about 40 0 C to about 50 0 C), such as those that may prevail during summer in the southern or western United States and comparable or warmer climates.
  • the polyester has a Tg of at least about 50 0 C, such as from about
  • a polyester derived from the stated compositions can be reacted with a chain extending agent to link one chain to another and/or to alter the physical properties of the polyester.
  • the physical properties that can be altered by the use of a chain extending agent include, but are not limited to, molecular weight and MFI.
  • the chain extending agent can be any one known to be useful in the art for polyester chain extension.
  • the chain extending agent is selected from the group consisting of isocyanates, epoxides, acyl chlorides, anhydrides, acrylics, aziridines, phosphate esters, multivalent metals, polyacids, polyols, oxazo lines, polymers or copolymers containing any of the foregoing functional groups, and mixtures thereof.
  • isocyanate compounds include 4,4'-methylene diphenyl diisocyanate (MDI), toluene diisocyanate (TDI), hexamethylene diisocyanate (HDI or HDMI), isophorone diisocyanate (IPDI), lysine diisocyanate (LDI), trimethylxylene diisocyanate (TMDI or TMXDI), polyisocyanate compounds (such as Desmodur® polyisocyanates manufactured by Bayer A. G), and mixtures thereof.
  • MDI 4,4'-methylene diphenyl diisocyanate
  • TDI toluene diisocyanate
  • HDI or HDMI hexamethylene diisocyanate
  • IPDI isophorone diisocyanate
  • LLI lysine diisocyanate
  • TMDI trimethylxylene diisocyanate
  • TMDI trimethylxylene diisocyanate
  • polyisocyanate compounds such as Desmodur
  • the chain extending agent is introduced into a molten polyester. This can be done either in a continuous process such as extrusion or in a batch process such as a batch reactor.
  • the molten polyester can be still molten from its polymerization or can be a remelt of already- formed and cooled polyester.
  • the chain-extended polymer may exhibit an increase in molecular weight and a concomitant increase in viscosity of the molten material.
  • the resulting polymer may also exhibit a significant improvement in mechanical properties over the non-chain-extended polymer, including improved impact strength, tensile strength, and elongation until break. A significant increase in flexibility may also be observed.
  • the following example is included to demonstrate preferred embodiments of the invention. It should be appreciated by those of skill in the art that the techniques disclosed in the example which follows represent techniques discovered by the inventor to function well in the practice of the invention, and thus can be considered to constitute preferred modes for its practice. However, those of skill in the art should, in light of the present disclosure, appreciate that many changes can be made in the specific embodiments which are disclosed and still obtain a like or similar result without departing from the spirit and scope of the invention.
  • Sorbitol (313.90 g, 1.732 mol), 600.00 g (5.169 mol) of fumaric acid, and 0.51 g (2.25 x 10 "3 mol) of Tin (II) Chloride (0.07 wt %) were charged into a 1-L resin kettle equipped with a mechanical stirrer, heating mantle with thermocouple temperature control, nitrogen inlet, and condenser with a moisture trap.
  • liquid monomers or the lowest-melting-point monomers were loaded first into the reactor to help solublize the other monomers and prevent charring.
  • the / ⁇ g was calculated to be 3 and the critical extent of reaction (p c ) was 0.667.
  • the theoretical water of polymerization was 186-mL, therefore the polymerization needed to be stopped at 124 mL water (186*0.667) to prevent cross- linking.
  • the polymerization was then heated to 160 0 C under a low nitrogen flow. After approximately 1.0 h, the mixture was at 160 0 C and 40 mL of water had been collected. The polymerization was held for 15 min at 160 0 C and an additional 5 mL of water (total water 45 mL) were collected. The temperature was then increased to 170 0 C and a total of 60 mL of water were collected. The temperature was then increased to 180 0 C, and. after 15 min a total of 84 mL of water had been collected.
  • the polymerization was then stopped due to the high viscosity of polymer.
  • the heat was turned off, the reactor taken apart, and the polymer resin poured in to a silicon baking pan and cooled.
  • the polymer was weighed (722.52 g, 98% yield) broken up, and stored. Samples were removed for testing by differential scanning calorimetry (DSC), TGA, and GPC.
  • the cooled product then underwent DSC, which determined the glass transition temperature (Tg) is dependent on the amount of water removed. For example, one polymer which had a total of 74 mL of water removed had a Tg of 53°C and a second polymer which had a total of 84 mL of water removed had a Tg of 84°C. However, both polymers were thermally stable to 218 0 C.
  • Polymer 2A 1 mole part glycerol units/1 mole part fumaric acid units
  • Polymer 2B 2 mole parts glycerol units/3 mole parts fumaric acid units
  • Polymer 2C 1 mole part sorbitol units/2 mole parts fumaric acid units
  • Polymer 2D 1 mole part sorbitol units/3 mole parts fumaric acid units The polymers were observed and some underwent DSC to determine their Tg values.
  • Polymer 2 A formed a stiff rubbery solid.
  • Polymer 2B formed a hard crystalline solid.
  • Polymer 2C formed a hard crystalline solid with a Tg of about 6O 0 C.
  • Polymer 2D formed a hard crystalline solid with a Tg of about 83°C.
  • a polymerization starting with a set of reactants as described above is performed in a reactor able to handle high viscosity material, able to generate a vacuum of less than 1 mm Hg, and able to remove frictional heat from mixing a viscous material.
  • the monomers are added and heated to 160 0 C to remove 85-90% of the water of condensation.
  • the vessel contents are then put under vacuum by gradually going from atmospheric pressure to 1 mm Hg over a 1 hour period while maintaining the temperature at 160 0 C.
  • the reactor removes the excess heat and maintains the internal polymerization temperature between 163-165°C until the desired viscosity is reached.
  • compositions and methods disclosed and claimed herein can be made and executed without undue experimentation in light of the present disclosure. While the compositions and methods of this invention have been described in terms of preferred embodiments, it will be apparent to those of skill in the art that variations may be applied to the compositions and methods and in the steps or in the sequence of steps of the methods described herein without departing from the concept, spirit and scope of the invention. More specif ⁇ cally, it will be apparent that certain agents which are both chemically and physiologically related may be substituted for the agents described herein while the same or similar results would be achieved. All such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the spirit, scope and concept of the invention as defined by the appended claims.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention concerne une composition contenant un polyester comprenant, d'une part des unités d'environ 1 partie en mole de polyol dérivé d'un polyol comportant m groupes -OH, m étant un entier de 3 à 8, et d'autre part des unités d'environ 0,98 à 3,03 parties en mole d'acide fumarique. Dans un mode de réalisation, les unités polyol sont des unités sorbitol. Dans un autre mode de réalisation, la composition se prête à la formation de plaques, plateaux, bols, tasses, couvercles de bols, couvercles de tasses, fourchettes, cuillères, couteaux, boîtes à bijoux, et articles d'emballage. L'invention concerne également un procédé de fabrication de la composition. Le procédé consiste, d'abord à effectuer une combinaison entre environ 1 partie en mole de polyol, 0,98 à 3,03 parties en mole d'acide fumarique, et environ 0,0002 à 0,0020 parties en mole d'un catalyseur de polyestérification, de façon à obtenir une combinaison de polyol et d'acide fumarique, puis à maintenir sous atmosphère inerte la combinaison de polyol et d'acide fumarique pendant au moins environ 2 heures à une température d'environ 130°C à 190°C de façon à obtenir un polyester fondu, et enfin à refroidir le polyester fondu de façon à obtenir le polyester.
PCT/US2009/031540 2008-01-23 2009-01-21 Polyesters d'acide fumarique / polyols, leur fabrication et leur utilisation Ceased WO2009094375A1 (fr)

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US2288708P 2008-01-23 2008-01-23
US61/022,887 2008-01-23
US35502309A 2009-01-16 2009-01-16
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US20190091343A1 (en) * 2016-03-30 2019-03-28 William Marsh Rice University Poly(diol fumarates) and poly(diol fumarate-co-succinates)
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005263928A (ja) * 2004-03-17 2005-09-29 Asahi Kasei Chemicals Corp ポリアセタール樹脂の組成物
CN103819754A (zh) * 2014-02-19 2014-05-28 福建工程学院 一种高韧性淀粉基热塑性塑料及其制备方法
CN103819754B (zh) * 2014-02-19 2015-10-28 福建工程学院 一种高韧性淀粉基热塑性塑料及其制备方法
US10319089B2 (en) 2016-03-04 2019-06-11 Panasonic intellectual property Management co., Ltd Component mounter
US20190091343A1 (en) * 2016-03-30 2019-03-28 William Marsh Rice University Poly(diol fumarates) and poly(diol fumarate-co-succinates)
US10835614B2 (en) * 2016-03-30 2020-11-17 William Marsh Rice University Poly(diol fumarates) and poly(diol fumarate-co-succinates)

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