IT1261827B - Procedimento per l'isolamento di policarbonati dalle loro soluzioni. - Google Patents

Procedimento per l'isolamento di policarbonati dalle loro soluzioni.

Info

Publication number
IT1261827B
IT1261827B ITRM930467A ITRM930467A IT1261827B IT 1261827 B IT1261827 B IT 1261827B IT RM930467 A ITRM930467 A IT RM930467A IT RM930467 A ITRM930467 A IT RM930467A IT 1261827 B IT1261827 B IT 1261827B
Authority
IT
Italy
Prior art keywords
polycarbonates
insulation
procedure
solutions
water vapor
Prior art date
Application number
ITRM930467A
Other languages
English (en)
Inventor
Wolfgang Alewelt
Hermann Kauth
Original Assignee
Bayer Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of ITRM930467A0 publication Critical patent/ITRM930467A0/it
Publication of ITRM930467A1 publication Critical patent/ITRM930467A1/it
Application granted granted Critical
Publication of IT1261827B publication Critical patent/IT1261827B/it

Links

Classifications

    • 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
    • C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/40—Post-polymerisation treatment
    • C08G64/403—Recovery of the polymer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)

Abstract

Oggetto della presente invenzione è un procedimento per l'isolamento di policarbonati, nel quale una soluzione di policarbonato viene divisa in un solvente organico per mezzo di vapore acqueo e il quale è caratterizzato dal fatto che la sospensione di particelle di policarbonato, di acqua condensata e di vapore acqueo/di solventi formatasi viene successivamente essiccata in un tubo, il quale presenta restringimenti della sua sezione.
ITRM930467A 1992-07-21 1993-07-14 Procedimento per l'isolamento di policarbonati dalle loro soluzioni. IT1261827B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4224025A DE4224025C2 (de) 1992-07-21 1992-07-21 Verfahren zur Isolierung von Polycarbonaten aus ihren Lösungen

Publications (3)

Publication Number Publication Date
ITRM930467A0 ITRM930467A0 (it) 1993-07-14
ITRM930467A1 ITRM930467A1 (it) 1995-01-14
IT1261827B true IT1261827B (it) 1996-06-03

Family

ID=6463754

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM930467A IT1261827B (it) 1992-07-21 1993-07-14 Procedimento per l'isolamento di policarbonati dalle loro soluzioni.

Country Status (6)

Country Link
US (1) US5317083A (it)
JP (1) JPH06157740A (it)
BE (1) BE1007243A3 (it)
DE (1) DE4224025C2 (it)
IT (1) IT1261827B (it)
NL (1) NL194799C (it)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19608521A1 (de) * 1996-03-06 1997-09-11 Bayer Ag Verfahren zur Herstellung von Polycarbonatagglomerat
DE19718724A1 (de) * 1997-05-02 1998-11-05 Buna Sow Leuna Olefinverb Gmbh Verfahren zur Gewinnung von Polymeren aus ihrer Lösung
US6362304B1 (en) 2000-11-29 2002-03-26 General Electric Company Resin preheating for steam precipitation jet polycarbonate resin isolation
TWI239340B (en) * 2001-12-06 2005-09-11 Nippon Catalytic Chem Ind Process for production of water-soluble (meth)acrylic polymers, water-soluble (meth)acrylic polymers, and use thereof
EP2170962B1 (en) 2007-07-03 2012-05-16 Dow Global Technologies LLC Process for recovering brominated butadiene polymers from solution
WO2009061600A1 (en) * 2007-11-07 2009-05-14 Dow Global Technologies, Inc. Partial solvent stripping process for recovering brominated butadiene polymers from solution
CN107107389B (zh) 2014-11-07 2020-05-19 沙特基础工业全球技术有限公司 用于制造致密聚合物粉末的方法、以及熔融处理致密聚合物粉末的方法
KR101818727B1 (ko) 2014-11-25 2018-01-15 사빅 글로벌 테크놀러지스 비.브이. 폴리카보네이트 제조 공정에서 필터 정열
CN107405586A (zh) 2015-03-20 2017-11-28 沙特基础工业全球技术公司 改善的干燥系统
WO2017077446A1 (en) 2015-11-05 2017-05-11 Sabic Global Technologies B.V. Process for manufacturing a polymer composition comprising a densified polymer and a conversion material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1094162B (it) * 1978-02-22 1985-07-26 Montedison Spa Processo in continuo per il recupero del policarbonato da sue soluzioni
US4423207A (en) * 1980-12-18 1983-12-27 General Electric Company Process for recovery of solid thermoplastic resins from solutions thereof in organic solvents
US4568418A (en) * 1981-08-12 1986-02-04 The Dow Chemical Company Process for converting polymer solutions into granules

Also Published As

Publication number Publication date
JPH06157740A (ja) 1994-06-07
ITRM930467A1 (it) 1995-01-14
ITRM930467A0 (it) 1993-07-14
DE4224025C2 (de) 1996-11-14
DE4224025A1 (de) 1994-01-27
NL194799C (nl) 2003-03-04
NL9301220A (nl) 1994-02-16
US5317083A (en) 1994-05-31
NL194799B (nl) 2002-11-01
BE1007243A3 (fr) 1995-05-02

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960708