GB970115A - Process for improving aqueous dispersions - Google Patents
Process for improving aqueous dispersionsInfo
- Publication number
- GB970115A GB970115A GB31509/60A GB3150960A GB970115A GB 970115 A GB970115 A GB 970115A GB 31509/60 A GB31509/60 A GB 31509/60A GB 3150960 A GB3150960 A GB 3150960A GB 970115 A GB970115 A GB 970115A
- Authority
- GB
- United Kingdom
- Prior art keywords
- copolymer
- styrene
- ester
- salt
- polymers
- 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
- C08F222/00—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 carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/12—Esters of phenols or saturated alcohols
- C08F222/16—Esters having free carboxylic acid groups, e.g. monoalkyl maleates or fumarates
-
- 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
- C08F8/00—Chemical modification by after-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L35/00—Compositions 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 carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L35/06—Copolymers with vinyl aromatic monomers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions 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 an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/08—Copolymers of styrene
- C08L25/10—Copolymers of styrene with conjugated dienes
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Aqueous dispersions are stabilized with an agent comprising a water-soluble salt of a synthetic copolymer of a half-ester of an unsaturated dicarboxylic acid with an ethylenic hydrocarbon which copolymer has an intrinsic viscosity in acetone between 0.01 and 0.1. The half-ester may be a C1- 12 alkyl or an aralkyl ester of maleic, fumaric, citraconic, mesaconic, itaconic or glutaconic acid; ortho hydrocarbon may be ethylene, propylene, butylene, styrene, alpha-methylstyrene or vinyl toluene; and the salt may be an alkali metal, ammonium or amine salt. It is stated that polymers of the specified intrinsic viscosity result from slow mass polymerization at temperatures not above 120 DEG C. in the presence of a chain modifier which may be an amine, Schiff's base, nitro-compound, hydrazine, diazoamino-compound, haloalkane, thiuram or xanthic disulphide, or a mercaptan, thioglycollic acid or an ester thereof, or sulphur, selenium or phosphine. In specific examples monobutyl maleate is copolymerized with styrene using benzoyl peroxide as catalyst, in Example 1 alone and in Example 2 with di-t-butyl peroxide, the modifier being beta-nitrostyrene in Example 1 and t-dodecylmercaptan in Example 2. Both polymers are converted to the sodium salt. The copolymer salts are used in amounts of 0.1 to 5% by weight of solids to stabilize dispersions of pigments in paints or polymer latices e.g. of natural rubber or of a polymer or copolymer of isoprene, butadiene, isobutylene, styrene and acrylonitrile. The examples illustrate the stabilization of a styrene-butadiene copolymer latex. Specification 929,239 is referred to.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB31509/60A GB970115A (en) | 1960-09-13 | 1960-09-13 | Process for improving aqueous dispersions |
FR873017A FR1300048A (en) | 1960-09-13 | 1961-09-12 | Improved method of stabilizing aqueous dispersions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB31509/60A GB970115A (en) | 1960-09-13 | 1960-09-13 | Process for improving aqueous dispersions |
Publications (1)
Publication Number | Publication Date |
---|---|
GB970115A true GB970115A (en) | 1964-09-16 |
Family
ID=10324153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB31509/60A Expired GB970115A (en) | 1960-09-13 | 1960-09-13 | Process for improving aqueous dispersions |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB970115A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0402563A1 (en) * | 1989-05-17 | 1990-12-19 | Sika AG, vorm. Kaspar Winkler & Co. | Hydrosoluble polymers, process for their preparation and their use as dispersing agents in suspensions of solid materials |
-
1960
- 1960-09-13 GB GB31509/60A patent/GB970115A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0402563A1 (en) * | 1989-05-17 | 1990-12-19 | Sika AG, vorm. Kaspar Winkler & Co. | Hydrosoluble polymers, process for their preparation and their use as dispersing agents in suspensions of solid materials |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2416440A (en) | Polymerization of butadiene-1, 3 hydrocarbons | |
GB753758A (en) | Improvements in or relating to freeze-resistant polymer-containing latex paint | |
GB970115A (en) | Process for improving aqueous dispersions | |
US3808183A (en) | Process for the instantaneous peptization of polychloroprene latex | |
ES482364A1 (en) | Process for the production of rubber latices free from specks and having a high surface tension. | |
US2661340A (en) | Manufacture of cyclized rubber | |
US3518236A (en) | Acceleration of sulfur-vulcanization of rubber with sulfinic acids and derivatives | |
US2386447A (en) | Rubberlike copolymers and method of making same | |
GB836996A (en) | Method of stabilising polyolefines and compositions so obtained | |
US3318832A (en) | Process for peptising sulphur modified chloroprene latex | |
GB572475A (en) | An improved manufacture of vulcanisable polymers from diolefins | |
US2574020A (en) | Shortstopping an emulsion polymerization reaction with alkyl polysulfide | |
GB806142A (en) | Improvements in or relating to elastomers | |
GB886823A (en) | Compositions for the production of articles having high impact and notch impact strength | |
US2397146A (en) | Emulsion polymerization process | |
US2380405A (en) | Polymerization of conjugated diene hydrocarbons | |
US2106465A (en) | Mercapto-thiazole derivatives | |
US2376337A (en) | Polymerization of conjugated dienes | |
US2380426A (en) | Polymerization of conjugated diene hydrocarbons | |
US2161038A (en) | Manufacture of rubberlike polymerization products | |
US2484425A (en) | Treatment of synthetic rubber latices | |
US2514928A (en) | Polymerizing branch-chain hexadienes | |
US3320201A (en) | Process for peptising sulphur modified chloroprene latex | |
GB621467A (en) | Improvements in aqueous emulsion polymerization processes | |
US2366326A (en) | Polymerization of butadiene-1,3 |