CA1106532A - Methode de preparation de polycarbonates - Google Patents

Methode de preparation de polycarbonates

Info

Publication number
CA1106532A
CA1106532A CA314,544A CA314544A CA1106532A CA 1106532 A CA1106532 A CA 1106532A CA 314544 A CA314544 A CA 314544A CA 1106532 A CA1106532 A CA 1106532A
Authority
CA
Canada
Prior art keywords
accordance
carbonate
stage
alkylene carbonate
carried out
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA314,544A
Other languages
English (en)
Inventor
Kwo-Hrong Lai
Harold N. Silvers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beatrice Companies Inc
Original Assignee
Beatrice Foods Co
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 Beatrice Foods Co filed Critical Beatrice Foods Co
Priority to CA314,544A priority Critical patent/CA1106532A/fr
Application granted granted Critical
Publication of CA1106532A publication Critical patent/CA1106532A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)
CA314,544A 1978-10-27 1978-10-27 Methode de preparation de polycarbonates Expired CA1106532A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA314,544A CA1106532A (fr) 1978-10-27 1978-10-27 Methode de preparation de polycarbonates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA314,544A CA1106532A (fr) 1978-10-27 1978-10-27 Methode de preparation de polycarbonates

Publications (1)

Publication Number Publication Date
CA1106532A true CA1106532A (fr) 1981-08-04

Family

ID=4112729

Family Applications (1)

Application Number Title Priority Date Filing Date
CA314,544A Expired CA1106532A (fr) 1978-10-27 1978-10-27 Methode de preparation de polycarbonates

Country Status (1)

Country Link
CA (1) CA1106532A (fr)

Similar Documents

Publication Publication Date Title
US4131731A (en) Process for preparing polycarbonates
US6646100B2 (en) Aliphatic polycarbonate homo-and co-polymers produced by DMC catalysis and the process for their production
US6818784B2 (en) Process for producing aliphatic oligocarbonate diols
CA2466255C (fr) Acetylacetonate d'ytterbium(iii) utilise comme catalyseur pour la preparation de polyols d'oligocarbonates aliphatiques
JPS6312896B2 (fr)
US5847069A (en) Process for the preparation of polycarbonate copolyether polyols
EP0849303A2 (fr) Procédé de préparation de polycarbonate-copolyester diols
KR101241248B1 (ko) 지환식 구조를 갖는 폴리카보네이트 디올의 폴리머 및 그제조방법
JP2006070269A (ja) エステル交換触媒としての金属アセチルアセトネート
JP2003192783A (ja) 脂肪族オリゴカーボネートの調製における触媒の使用
JPH0784515B2 (ja) ポリカーボネートの製造方法
US20040143130A1 (en) Process for producing aliphatic oligocarbonate diols
CA1106532A (fr) Methode de preparation de polycarbonates
JP2879685B2 (ja) ポリカーボネートジオール
Rokicki et al. Synthesis of six-membered cyclic carbonate monomers by disproportionation of 1, 3-bis (alkoxycarbonyloxy) propanes and their polymerization
JP7827751B2 (ja) ポリカーボネートジオールの製造方法、ポリカーボネートジオール及びエステル交換触媒
US3359242A (en) Process for producing high molecular weight (cyclo) aliphatic polyesters of carbonicacid with (cyclo) glycols
JP2884358B2 (ja) ポリウレタン
KR101500430B1 (ko) 폴리에스터(Polyester), 폴리우레탄(Polyurethane)의 물성 개선을 위한 카보네이트 디올 단량체, 이의 합성 방법 및 이를 이용한 중합체
US3506623A (en) Process for producing high molecular weight (cyclo) aliphatic polyesters of carbonic acid with (cyclo) glycols
Berti et al. New route to poly (alkylene terephthalate) s by reaction of dimethyl terephthalate with cyclic carbonates
US3432473A (en) Process for the production of aliphatic or cycloaliphatic polyesters of carbonic acid
EP0227819A4 (fr) Procede destine a augmenter le poids moleculaire des poly(carbonates d'alkylene) polyols.
CN118660923A (zh) 聚碳酸酯二醇的制造方法、聚碳酸酯二醇和酯交换催化剂
HK1085229B (en) Process for preparing oligocarbonate polyols

Legal Events

Date Code Title Description
MKEX Expiry