GB1349938A – Polymerisation process
– Google Patents
GB1349938A – Polymerisation process
– Google Patents
Polymerisation process
Info
Publication number
GB1349938A
GB1349938A
GB4954870A
GB1349938DA
GB1349938A
GB 1349938 A
GB1349938 A
GB 1349938A
GB 4954870 A
GB4954870 A
GB 4954870A
GB 1349938D A
GB1349938D A
GB 1349938DA
GB 1349938 A
GB1349938 A
GB 1349938A
Authority
GB
United Kingdom
Prior art keywords
dispersion
water
dodecahydrate
phase inversion
solution
Prior art date
1970-10-19
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
GB4954870A
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.)
BP Chemicals Ltd
Original Assignee
BP Chemicals 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.)
1970-10-19
Filing date
1970-10-19
Publication date
1974-04-10
1970-10-19
Application filed by BP Chemicals Ltd
filed
Critical
BP Chemicals Ltd
1974-04-10
Publication of GB1349938A
publication
Critical
patent/GB1349938A/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
C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
Abstract
1349938 Graft polymerization process BP CHEMICALS Ltd 1 Oct 1971 [19 Oct 1970] 49548/70 Heading C3G A graft polymerization process comprises polymerizing a solution of a rubber in a vinyl aromatic monomer until phase inversion has occurred, forming a dispersion of the product in the presence of a surfactant and a trialkali metal orthophosphate, subsequently precipitating in the dispersion a substantially water-insoluble inorganic phosphate and continuing the polymerization under suspension polymerization conditions. In the examples, (a) a solution of polybutadiene and polystyrene in styrene was mixedwith water, benzoyl and lauroyl peroxides, heated and stirred until phase inversion occurred, whereupon mineral oil and butyl stearate were added, followed by sodium nonyl phosphate, trisodium orthophosphate dodecahydrate and disodium hydrogen phosphate dodecahydrate to yield a dispersion which was stabilized by addition of calcium nitrate tetrahydrate, whereupon calcium hydroxy apatite was precipitated; and (b) the solution as in (a) was mixed with water, sodium dodecyl benzene sulphonate, trisodium phosphate dodecahydrate and the said peroxides, the resulting mixture was heated and stirred until phase inversion occurred, butyl stearate and water were added, followed by a further amount of said sulphonate, trisodium phosphate dodecahydrate and disodium hydrogen phosphate dodecahydrate to yield a dispersion which was stabilized as in (a). Calcium chloride may be used in place of the nitrate. 1009027 Magnetic recording medium GEVAERT PHOTO-PRODUCTEN N.V. 18 April 1963 [30 April 1962] 15321/63 Index C3R 3R27 L4H C6X C13M C12 C9B C25 C8R C8P C10 L5A L5X A recording medium comprises a substrate coated with a dispersion of magnetic particles in a film-forming binder, and the substrate or binder is a polycondensate mainly consisting of a polybisphenol ester of either an aromatic dicarboxylic acid or fumaric acid. The polycondensate may also include aliphatic or cycloaliphatic dicarboxylic acids and other dihydroxy compounds such as aliphatic or cycloaliphatic glycols or diphenols which do not affect significantly the characteristics of the ester. An embodiment using an aromatic acid has 80% of its units: and 20%: An embodiment using fumaric acid is Specifications 883312 and 975813 are referred to.
GB4954870A
1970-10-19
1970-10-19
Polymerisation process
Expired
GB1349938A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB4954870
1970-10-19
Publications (1)
Publication Number
Publication Date
GB1349938A
true
GB1349938A
(en)
1974-04-10
Family
ID=10452708
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4954870A
Expired
GB1349938A
(en)
1970-10-19
1970-10-19
Polymerisation process
Country Status (7)
Country
Link
US
(1)
US3876731A
(en)
BE
(1)
BE774158A
(en)
CA
(1)
CA961189A
(en)
DE
(1)
DE2151590A1
(en)
FR
(1)
FR2111476A5
(en)
GB
(1)
GB1349938A
(en)
NL
(1)
NL7114201A
(en)
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4859745A
(en)
*
1987-12-22
1989-08-22
The Dow Chemical Company
Stratified fibrous fluoropolymer compositions and process for forming such fluoropolymers
US4937279A
(en)
*
1988-08-11
1990-06-26
The Dow Chemical Company
Extrudable polymeric compositions
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3047534A
(en)
*
1959-10-07
1962-07-31
Cosden Petroleum Corp
Graft polymerization on a rubbery polymer in aqueous suspension employing polyvinyl alcohol and a metal phosphate as suspending agents, and product obtained thereby
US3551523A
(en)
*
1966-09-22
1970-12-29
Foster Grant Co Inc
Polymerization process for preparing high impact polymers
GB1301091A
(en)
*
1969-03-12
1972-12-29
British Petroleum Co
Preparation of toughened polyvinyl aromatic compound
US3696172A
(en)
*
1970-10-19
1972-10-03
Nihon Polystyrene Kogyo Kk
Process for preparing styrene polymers having a high impact strength
1970
1970-10-19
GB
GB4954870A
patent/GB1349938A/en
not_active
Expired
1971
1971-10-04
CA
CA124,637A
patent/CA961189A/en
not_active
Expired
1971-10-07
US
US187557A
patent/US3876731A/en
not_active
Expired – Lifetime
1971-10-15
NL
NL7114201A
patent/NL7114201A/xx
unknown
1971-10-16
DE
DE19712151590
patent/DE2151590A1/en
active
Pending
1971-10-18
FR
FR7137273A
patent/FR2111476A5/fr
not_active
Expired
1971-10-19
BE
BE774158A
patent/BE774158A/en
unknown
Also Published As
Publication number
Publication date
CA961189A
(en)
1975-01-14
US3876731A
(en)
1975-04-08
FR2111476A5
(en)
1972-06-02
BE774158A
(en)
1972-04-19
DE2151590A1
(en)
1972-04-20
NL7114201A
(en)
1972-04-21
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Legal Events
Date
Code
Title
Description
1974-08-21
PS
Patent sealed [section 19, patents act 1949]
1983-05-05
PCNP
Patent ceased through non-payment of renewal fee
