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1. WO2022010986 - MELT DISPERSION PROCESS FOR MAKING POLYMER POLYOLS

Publication Number WO/2022/010986
Publication Date 13.01.2022
International Application No. PCT/US2021/040639
International Filing Date 07.07.2021
IPC
C08F 212/08 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
212Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
02Monomers containing only one unsaturated aliphatic radical
04containing one ring
06Hydrocarbons
08Styrene
C08F 216/12 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
216Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical
12by an ether radical
C08J 3/09 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
3Processes of treating or compounding macromolecular substances
02Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
09in organic liquids
C08J 3/21 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
3Processes of treating or compounding macromolecular substances
20Compounding polymers with additives, e.g. colouring
205in the presence of a liquid phase
21the polymer being premixed with a liquid phase
C08L 71/02 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
71Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
02Polyalkylene oxides
C08L 25/08 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
25Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
02Homopolymers or copolymers of hydrocarbons
04Homopolymers or copolymers of styrene
08Copolymers of styrene
Applicants
  • DOW GLOBAL TECHNOLOGIES LLC [US]/[US]
Inventors
  • CLAESSENS, Sven
  • BARNES, Kathleen
  • BLOXOM, Stephanie A.
  • THOMAES, Niek
  • DE SMET, Antoon
  • SCHAFFER, Nicholas B.
Agents
  • COHN, Gary C.
Priority Data
63/049,14308.07.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) MELT DISPERSION PROCESS FOR MAKING POLYMER POLYOLS
(FR) PROCÉDÉ DE DISPERSION À L'ÉTAT FONDU POUR LA FABRICATION DE POLYOLS POLYMÈRES
Abstract
(EN) A preformed thermoplastic polymer is dispersed into a polyol via a mechanical dispersion process. A stabilizer is present to stabilize the dispersed polymer particles. An antisolvent is also present. The antisolvent has been found to lead to smaller particle size and increased dispersion stability.
(FR) Un polymère thermoplastique préformé est dispersé dans un polyol par l'intermédiaire d'un procédé de dispersion mécanique. Un stabilisant est présent pour stabiliser les particules de polymère dispersées. Un anti-solvant est également présent. L'antisolvant s'est avéré conduire à une taille de particules plus petite et à une stabilité de dispersion accrue.
Latest bibliographic data on file with the International Bureau