GB804285A - Improvements in or relating to the production of aqueous dispersions of vinylidene chloride copolymers and of moistureproof sheet wrapping materials produced therefrom - Google Patents
Improvements in or relating to the production of aqueous dispersions of vinylidene chloride copolymers and of moistureproof sheet wrapping materials produced therefromInfo
- Publication number
- GB804285A GB804285A GB2815255A GB2815255A GB804285A GB 804285 A GB804285 A GB 804285A GB 2815255 A GB2815255 A GB 2815255A GB 2815255 A GB2815255 A GB 2815255A GB 804285 A GB804285 A GB 804285A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphonate
- sodium
- water
- vinylidene chloride
- mixture
- 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
Links
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
- C08F214/00—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
- C08F214/02—Monomers containing chlorine
- C08F214/04—Monomers containing two carbon atoms
- C08F214/08—Vinylidene chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
Abstract
An aqueous dispersion of a vinylidene chloride copolymer is made by polymerizing an emulsified monomeric mixture of 90 parts by weight of vinylidene chloride and 10 parts of another ethylenic monomer in an aqueous medium in the presence of a polymerization catalyst, e.g. a redox system and a mixture of dispersing agents comprising at least one water-soluble or water-dispersible alkali metal salt or ammonium salt of a long straight-chain alkyl or alkylene sulphate or sulphonate, or an n-alkyl aryl sulphonate which contains between 12 and 30 carbon atoms in the alkyl radical, and a water-soluble or water-dispersible condensation product of formaldehyde with a naphthalene sulphonic and/or alkyl substituted naphthalene sulphonic acid or with an alkali metal or ammonium salt thereof. The other monomer may be acrylonitrile, methacrylonitrile, methyl, ethyl, butyl, or isobutyl acrylate, or methacrylate, methyl vinyl ketone, vinyl chloride, or vinyl acetate. If desired the emulsified monomeric mixture may contain a very minor amount of citraconic acid or anhydride, itaconic acid or anhydride, or mixtures. The specified catalyst is a mixture of ammonium persulphate and sodium metabisulphite. Dispersing agents mentioned are sodium cetyl sulphate, ammonium octadecyl sulphate, sodium n-dodecyl benzene sulphonate, and condensates of formaldehyde and sodium naphthalene beta-sulphonate or sodium isopropylnaphthalene beta - sulphonate. The aqueous copolymer dispersion may be used for making self-supporting films and for coating organic, non-fibrous hydrophilic sheet materials. Specification 693,496 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2815255A GB804285A (en) | 1955-10-03 | 1955-10-03 | Improvements in or relating to the production of aqueous dispersions of vinylidene chloride copolymers and of moistureproof sheet wrapping materials produced therefrom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2815255A GB804285A (en) | 1955-10-03 | 1955-10-03 | Improvements in or relating to the production of aqueous dispersions of vinylidene chloride copolymers and of moistureproof sheet wrapping materials produced therefrom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB804285A true GB804285A (en) | 1958-11-12 |
Family
ID=10271114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2815255A Expired GB804285A (en) | 1955-10-03 | 1955-10-03 | Improvements in or relating to the production of aqueous dispersions of vinylidene chloride copolymers and of moistureproof sheet wrapping materials produced therefrom |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB804285A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2118864A (en) * | 1982-04-26 | 1983-11-09 | Us Energy | Composite polymeric film |
-
1955
- 1955-10-03 GB GB2815255A patent/GB804285A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2118864A (en) * | 1982-04-26 | 1983-11-09 | Us Energy | Composite polymeric film |
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