GB1342381A – Process for the mannufacture of paste-forming vinyl chloride polymers
– Google Patents
GB1342381A – Process for the mannufacture of paste-forming vinyl chloride polymers
– Google Patents
Process for the mannufacture of paste-forming vinyl chloride polymers
Info
Publication number
GB1342381A
GB1342381A
GB1753171A
GB1753171A
GB1342381A
GB 1342381 A
GB1342381 A
GB 1342381A
GB 1753171 A
GB1753171 A
GB 1753171A
GB 1753171 A
GB1753171 A
GB 1753171A
GB 1342381 A
GB1342381 A
GB 1342381A
Authority
GB
United Kingdom
Prior art keywords
vinyl chloride
paste
emulsifier
drying
residual moisture
Prior art date
1970-05-27
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
GB1753171A
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.)
Wacker Chemie AG
Original Assignee
Wacker Chemie 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.)
1970-05-27
Filing date
1971-05-27
Publication date
1974-01-03
1971-05-27
Application filed by Wacker Chemie AG
filed
Critical
Wacker Chemie AG
1974-01-03
Publication of GB1342381A
publication
Critical
patent/GB1342381A/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
C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
C08J3/00—Processes of treating or compounding macromolecular substances
C08J3/12—Powdering or granulating
C08J3/16—Powdering or granulating by coagulating dispersions
C—CHEMISTRY; METALLURGY
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
C08J2327/06—Homopolymers or copolymers of vinyl chloride
Abstract
1342381 Producing powdered polymers WACKER-CHEMIE GmbH 27 May 1971 [27 May 1970] 17531/71 Heading C3P Paste-forming powders of vinyl chloride polymers and copolymers are formed by (1) polymerizing a stable monomer dispersion produced by pre-homogenization in the presence of an emulsifier and an oil-soluble catalyst, (2) feeding the resulting polymer dispersion via an applicator roller to a roller drier and drying it at 90- 110 C. to a residual moisture content of 3-12 wt. per cent, and (3) grinding the resulting powder at 20-40 C. in a stream of air with simultaneous removal of residual moisture down to a water content of at most 0À3%. In examples, powders are formedby drying vinyl chloride, vinyl chloride/vinyl acetate (90/10) and vinyl chloride/propylene (99/1) polymer dispersions obtained by polymerization in the presence of lauroyl peroxide or a mixture thereof with diethylhexyl peroxydicarbonate as catalyst, the emulsifier being sodium dodecylbenzene sulphonate, sodium lauryl sulphate or “Mersolat” (Trade Mark).
GB1753171A
1970-05-27
1971-05-27
Process for the mannufacture of paste-forming vinyl chloride polymers
Expired
GB1342381A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE2026023A
DE2026023C3
(en)
1970-05-27
1970-05-27
Process for the production of vinyl chloride polymers or copolymers
Publications (1)
Publication Number
Publication Date
GB1342381A
true
GB1342381A
(en)
1974-01-03
Family
ID=5772308
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1753171A
Expired
GB1342381A
(en)
1970-05-27
1971-05-27
Process for the mannufacture of paste-forming vinyl chloride polymers
Country Status (11)
Country
Link
US
(1)
US3696079A
(en)
JP
(1)
JPS4931747B1
(en)
BE
(1)
BE767640A
(en)
CA
(1)
CA940674A
(en)
CH
(1)
CH542252A
(en)
DE
(1)
DE2026023C3
(en)
FR
(1)
FR2093770A5
(en)
GB
(1)
GB1342381A
(en)
NL
(1)
NL7107254A
(en)
NO
(1)
NO134559C
(en)
SE
(1)
SE366323B
(en)
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE2911333A1
(en)
*
1979-03-22
1980-10-02
Wacker Chemie Gmbh
METHOD FOR POLYMERIZING VINYL CHLORIDE BY THE MICROSUSPENSION METHOD
DE4240716C2
(en)
*
1992-12-03
1996-06-20
Wacker Chemie Gmbh
Process for drying vinyl chloride polymers by convective direct current drying
1970
1970-05-27
DE
DE2026023A
patent/DE2026023C3/en
not_active
Expired
1971
1971-05-25
BE
BE767640A
patent/BE767640A/en
unknown
1971-05-26
FR
FR7119112A
patent/FR2093770A5/fr
not_active
Expired
1971-05-26
NL
NL7107254A
patent/NL7107254A/xx
not_active
Application Discontinuation
1971-05-26
NO
NO1985/71A
patent/NO134559C/no
unknown
1971-05-26
SE
SE06815/71A
patent/SE366323B/xx
unknown
1971-05-26
CA
CA113,943A
patent/CA940674A/en
not_active
Expired
1971-05-27
JP
JP46036637A
patent/JPS4931747B1/ja
active
Pending
1971-05-27
GB
GB1753171A
patent/GB1342381A/en
not_active
Expired
1971-05-27
CH
CH779271A
patent/CH542252A/en
not_active
IP Right Cessation
1971-05-27
US
US147657A
patent/US3696079A/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
CH542252A
(en)
1973-09-30
NO134559B
(en)
1976-07-26
DE2026023B2
(en)
1975-01-23
BE767640A
(en)
1971-11-25
NO134559C
(en)
1976-11-03
NL7107254A
(en)
1971-11-30
SE366323B
(en)
1974-04-22
FR2093770A5
(en)
1972-01-28
CA940674A
(en)
1974-01-29
DE2026023C3
(en)
1978-08-31
JPS4931747B1
(en)
1974-08-24
US3696079A
(en)
1972-10-03
DE2026023A1
(en)
1971-12-09
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Legal Events
Date
Code
Title
Description
1974-05-15
PS
Patent sealed [section 19, patents act 1949]
1980-01-16
PCNP
Patent ceased through non-payment of renewal fee
