GB1246900A – PRODUCTION OF alpha,alpha-DISUBSTITUTED beta-PROPIOLACTONE POLYMERS
– Google Patents
GB1246900A – PRODUCTION OF alpha,alpha-DISUBSTITUTED beta-PROPIOLACTONE POLYMERS
– Google Patents
PRODUCTION OF alpha,alpha-DISUBSTITUTED beta-PROPIOLACTONE POLYMERS
Info
Publication number
GB1246900A
GB1246900A
GB62833/69A
GB6283369A
GB1246900A
GB 1246900 A
GB1246900 A
GB 1246900A
GB 62833/69 A
GB62833/69 A
GB 62833/69A
GB 6283369 A
GB6283369 A
GB 6283369A
GB 1246900 A
GB1246900 A
GB 1246900A
Authority
GB
United Kingdom
Prior art keywords
propiolactone
propene
amount
disubstituted
alpha
Prior art date
1968-12-26
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
GB62833/69A
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.)
Kanegafuchi Spinning Co Ltd
Original Assignee
Kanegafuchi Spinning Co Ltd
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.)
1968-12-26
Filing date
1969-12-24
Publication date
1971-09-22
1969-12-24
Application filed by Kanegafuchi Spinning Co Ltd
filed
Critical
Kanegafuchi Spinning Co Ltd
1971-09-22
Publication of GB1246900A
publication
Critical
patent/GB1246900A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
C08G63/78—Preparation processes
C08G63/82—Preparation processes characterised by the catalyst used
C08G63/823—Preparation processes characterised by the catalyst used for the preparation of polylactones or polylactides
Abstract
1,246,900. α,α-Disubstituted-#-propiolactone polymers. KANEGAFUCHI BOSEKI K.K. 24 Dec., 1969 [26 Dec., 1968], No. 62833/69. Heading C3R. Poly-α,α-disubstituted-#-propiolactone of controlled molecular weight is obtained by the ring opening polymerization of an α,α-disubstituted- #-propiolactone of the general formula where each of R 1 and R 2 is an alkyl group of 1-4 C atoms or an aryl group, in the presence of an anionic catalyst and a molecular weight controlling agent having the general formula where each of R 3 -R 9 is hydrogen, halogen or an alkyl group of 1-6 carbon atoms and X is halogen. The reaction is preferably carried out in an inert solvent and the amount of molecular weight controlling agent is determined by the equation where p is the desired degree of polymerization, [C] (all concentrations in mols./litre) the initial monomer concentrations, [X] 0 the amount of impurity in the monomer, [M] p the amount of polymerized monomer, [Y] the amount of M.Wt. controlling agent and alpha, beta and gamma are constants determined by the polymerization conditions. In the examples pivalolactone was polymerized in toluene using 1,3- dichloro-1-propene as M.Wt. controlling agent and as catalyst (a) tri-n-butylamine, (b) N- methylpiperidine and (c) tetra-n-butylammonium laurate, and α,α-diethyl-#-propiolactone was polymerized in toluene in the presence of tri-n-butylamine as catalyst and (a) 1,3- dichloro-2-methyl-1-propene, (b) 1,3-dibromo- 2 – methyl – 1 – propene, (c) 3 – chloro – 2 – chloromethyl – 1 – propene, (d) benzyl bromide, (e) 1-chloro-2-octene and (f) 2-chloro-2-phenyloctane as M.Wt. controlling agents.
GB62833/69A
1968-12-26
1969-12-24
PRODUCTION OF alpha,alpha-DISUBSTITUTED beta-PROPIOLACTONE POLYMERS
Expired
GB1246900A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP9622568
1968-12-26
Publications (1)
Publication Number
Publication Date
GB1246900A
true
GB1246900A
(en)
1971-09-22
Family
ID=14159275
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB62833/69A
Expired
GB1246900A
(en)
1968-12-26
1969-12-24
PRODUCTION OF alpha,alpha-DISUBSTITUTED beta-PROPIOLACTONE POLYMERS
Country Status (4)
Country
Link
US
(1)
US3624047A
(en)
DE
(1)
DE1964541C3
(en)
GB
(1)
GB1246900A
(en)
NL
(1)
NL156420B
(en)
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US5518907A
(en)
*
1989-06-07
1996-05-21
Center For Innovative Technology
Cloning and expression in Escherichia coli of the Alcaligenes eutrophus H16 poly-beta-hydroxybutyrate biosynthetic pathway
US5334520A
(en)
*
1990-05-25
1994-08-02
Center For Innovative Technology
Production of poly-beta-hydroxybutyrate in transformed escherichia coli
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3407181A
(en)
*
1965-04-23
1968-10-22
Du Pont
alpha-methyl-alpha-dichlorophenyl-beta-propiolactones and polymers thereof
NL6608706A
(en)
*
1966-06-23
1967-12-27
1969
1969-12-23
DE
DE1964541A
patent/DE1964541C3/en
not_active
Expired
1969-12-23
US
US887780A
patent/US3624047A/en
not_active
Expired – Lifetime
1969-12-23
NL
NL6919275.A
patent/NL156420B/en
unknown
1969-12-24
GB
GB62833/69A
patent/GB1246900A/en
not_active
Expired
Also Published As
Publication number
Publication date
NL6919275A
(en)
1970-06-30
US3624047A
(en)
1971-11-30
DE1964541C3
(en)
1975-04-30
DE1964541B2
(en)
1974-09-05
DE1964541A1
(en)
1970-07-09
NL156420B
(en)
1978-04-17
Similar Documents
Publication
Publication Date
Title
Bengough et al.
1963
The thermal degradation of polyvinylchloride in solution. I. The kinetics of the dehydrochlorination reaction
US3689460A
(en)
1972-09-05
Interpolymers of carbon monoxide and process for preparing same
ES426885A1
(en)
1976-09-01
Process for polymerizing {60 -olefines
GB921636A
(en)
1963-03-20
Polymerisation of propylene and catalysts therefor
ES448202A1
(en)
1977-07-01
Dry polymerization of olefins in reaction vessels arranged in series
GB1413783A
(en)
1975-11-12
Alkylaryloxyphosphazene polymers
GB1163605A
(en)
1969-09-10
The polymerisation of vinyl chloride at low temperatures.
GB837301A
(en)
1960-06-09
Process for preparing crystalline high polymers of olefins
US3371076A
(en)
1968-02-27
Process of copolymerization of ethylene and alpha-olefines with fluorinated unsaturated monomers
GB1246900A
(en)
1971-09-22
PRODUCTION OF alpha,alpha-DISUBSTITUTED beta-PROPIOLACTONE POLYMERS
US4529780A
(en)
1985-07-16
Process for polymerizing alpha olefins with phenolic compound containing catalysts
US3418259A
(en)
1968-12-24
Crystalline polybenzyls and process of producing same
KR930023375A
(en)
1993-12-18
Catalyst systems that can be used for stereospecific polymerization of α-olefins, polymerization methods thereof, and polymers obtained
GB1164331A
(en)
1969-09-17
Process for the Polymerisation of Mixtures of Different Delta<2>-Oxazolines
US3232919A
(en)
1966-02-01
Three-component catalyst containing polymeric methyl halide metal reaction product and titanium compound for olefin polymerization
US3431247A
(en)
1969-03-04
Chemical process and products
KR880011207A
(en)
1988-10-27
Process for producing polyethylene having a medium molecular weight distribution
US3442883A
(en)
1969-05-06
Palladium catalyzed polymerization of allene
US2927104A
(en)
1960-03-01
Preparation of high molecular weight polyisobutylene
GB1392365A
(en)
1975-04-30
Friable distearyl pentaerythitol diphosphite
KR910009735A
(en)
1991-06-28
Ziegler-Natta catalyst system
US3048575A
(en)
1962-08-07
Process for the manufacture of ethylene polymers
GB938780A
(en)
1963-10-09
Process for polymerising aliphatic alpha-mono-olefins
GB903014A
(en)
1962-08-09
Improvements in or relating to the production of polymers
US3852218A
(en)
1974-12-03
SiCl{11 -AlCl{11 {0 COCATALYST SYSTEM
None