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1. WO2018075594 - CRYSTAL NUCLEATING AGENTS FOR POLYHYDROXYALKANOATES

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Publication Number WO/2018/075594
Publication Date 26.04.2018
International Application No. PCT/US2017/057110
International Filing Date 18.10.2017
IPC
C08G 63/06 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
63Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
02Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds
06derived from hydroxy carboxylic acids
C08K 5/00 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
5Use of organic ingredients
C08G 63/88 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
63Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
88Post-polymerisation treatment
CPC
C08G 2250/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
2250Compositions for preparing crystalline polymers
C08G 63/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
63Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
02Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
06derived from hydroxycarboxylic acids
C08G 63/88
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
63Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
88Post-polymerisation treatment
C08K 13/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUse of inorganic or non-macromolecular organic substances as compounding ingredients
13Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
02Organic and inorganic ingredients
C08K 2201/002
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUse of inorganic or non-macromolecular organic substances as compounding ingredients
2201Specific properties of additives
002Physical properties
C08K 5/0083
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUse of inorganic or non-macromolecular organic substances as compounding ingredients
5Use of organic ingredients
0008Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
0083Nucleating agents promoting the crystallisation of the polymer matrix
Applicants
  • MEREDIAN BIOPLASTICS, INC.
Inventors
  • ARNOLD, Rachelle
  • JOHNSON, Adam
Agents
  • GONCE, J., David
  • NEELY, Andrew, S.
  • BARNES, JR., Richard, W.
  • FOX, Robert, O.
  • LAROSE, David, E.
Priority Data
62/409,54018.10.2016US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) CRYSTAL NUCLEATING AGENTS FOR POLYHYDROXYALKANOATES
(FR) AGENTS DE NUCLÉATION DE CRISTAUX POUR POLYHYDROXYALCANOATES
Abstract
(EN) This invention relates to compositions and methods for increasing the crystallization rate and/or processing speed of polyhydroxyalkanoate (PHA) polymers. PHA polymers are notorious for slow crystallization rates, reducing the practicality for using PHA for consumer products. Compounds that have similar crystal structures to PHA and have a melting point higher than that of the PHA, such as pentaerythritol, as well as compounds that undergo a crystal structure change at or below the melting point of the polymer, such as sulfur or selenium, act as good crystal nucleators for PHA.
(FR) La présente invention concerne des compositions et des procédés pour augmenter la vitesse de cristallisation et/ou la vitesse de traitement de polymères de polyhydroxyalcanoate (PHA). Les vitesses de cristallisation des polymères PHA sont notoirement lentes, ce qui réduit l'utilisation pratique des PHA pour des produits de consommation. Des composés qui ont des structures cristallines similaires à celle des PHA et ont un point de fusion supérieur à celui des PHA, tels que le pentaérythritol, ainsi que des composés qui subissent une modification de structure cristalline au niveau ou au-dessous du point de fusion du polymère, tels que le soufre ou le sélénium, agissent en tant que bons agents de nucléation de cristaux pour les PHA.
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