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1. WO2000039205 - RECOVERY OF RECYCLABLE MATERIAL FROM A PHYSICAL COMBINATION OF IT AND NORMALLY SOLID POLY(ALKYLENE CARBONATE) MATERIAL

Publication Number WO/2000/039205
Publication Date 06.07.2000
International Application No. PCT/US1999/031132
International Filing Date 29.12.1999
IPC
C08J 11/04 2006.01
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
11Recovery or working-up of waste materials
04of polymers
CPC
C08J 11/04
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
11Recovery or working-up of waste materials
04of polymers
Y02P 20/143
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
20Technologies relating to chemical industry
10General improvement of production processes causing greenhouse gases [GHG] emissions
14Reagents; Educts; Products
141Feedstock
143the feedstock being recycled plastics
Y02W 30/70
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
30Technologies for solid waste management
50Reuse, recycling or recovery technologies
70Recovery of polymers other than plastics or rubbers
Applicants
  • PAC POLYMERS INC. [US/US]; 100 Interchange Boulevard #100 Newark, DE 19711-3549, US (AllExceptUS)
  • GIACCO, Alexander, F. [US/US]; US (UsOnly)
  • SANT'ANGELO, Joseph, G. [US/US]; US (UsOnly)
  • CHEN, Xiaomao [CN/US]; US (UsOnly)
Inventors
  • GIACCO, Alexander, F.; US
  • SANT'ANGELO, Joseph, G.; US
  • CHEN, Xiaomao; US
Agents
  • HOPKINS, George, H.; 217 Hitching Post Drive Wilmington, DE 19903-1914, US
Priority Data
60/114,23630.12.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) RECOVERY OF RECYCLABLE MATERIAL FROM A PHYSICAL COMBINATION OF IT AND NORMALLY SOLID POLY(ALKYLENE CARBONATE) MATERIAL
(FR) EXTRACTION D'UN MATERIAU RECYCLABLE D'UNE COMBINAISON PHYSIQUE LE CONTENANT AINSI QUE DU POLY (ALKYLENE CARBONATE) NORMALEMENT SOLIDE
Abstract
(EN)
Disclosed is the recovery of normally solid recyclable material from a physical combination of it and normally solid poly(alkylene carbonate) by (1) subjecting a mixture of the combination and normally liquid hydroxy material to heat and pressure until the poly(alkylene carbonate) degrades to a liquid, and (2) separating the recyclable material from the liquid portion of the resulting mixture. Separation of lower molecular weight poly(alkylene carbonate), alkylene carbonate, or a mixture thereof from the liquid portion is disclosed also.
(FR)
L'invention porte sur un procédé d'extraction d'un matériau recyclable normalement solide d'une combinaison physique le contenant ainsi que du poly(alkylène carbonate) et consistant (1) à soumettre un mélange de ladite combinaison et d'un matériau hydroxy normalement liquide à une certaine température et à une certaine pression jusqu'à ce que le poly(alkylène carbonate) se soit dégradé en liquide, et (2) à séparer le matériau recyclable de la partie liquide du mélange résultant. L'invention porte également sur le processus de séparation du poly(alkylène carbonate) de poids moléculaire moindre, de l'alkylène carbonate ou de leur mélange, d'avec le liquide.
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