GB855933A - Improvements in the production of cellular materials - Google Patents
Improvements in the production of cellular materialsInfo
- Publication number
- GB855933A GB855933A GB3383557A GB3383557A GB855933A GB 855933 A GB855933 A GB 855933A GB 3383557 A GB3383557 A GB 3383557A GB 3383557 A GB3383557 A GB 3383557A GB 855933 A GB855933 A GB 855933A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkaryl
- calcium
- specified
- plastisol
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0033—Use of organic additives containing sulfur
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
In making foamed plastisols, an inert gas or a volatile inert liquid is dispersed under superatmospheric pressure in a closed container throughout the plastisol which comprises, in addition to a vinyl chloride polymer and a plasticizer, a small proportion of an alkali metal or alkaline earth metal alkaryl sulphonate soluble in the plasticizer. The plastisol is discharged from the container, by the pressure, in the form of an ungelled foam, which is then gelled by heat, e.g. incompletely gelled by radio-frequency heating and then completely gelled in a hot-air or infra-red oven. The polymer may be polyvinyl chloride or a copolymer of vinyl chloride with a minor proportion of vinyl acetate or vinylidene chloride. Specified inert gases are: carbon dioxide, nitrous oxide, dichlorodifluoromethane and dichlorotetrafluoroethane. Specified inert liquids are: monofluorotrichloromethane, 1, 1, 2-trifluoro-1, 2, 2-trichloroethane and dichlorodifluoromethane at a temperature of 5 DEG C. and a pressure of 40 lb. sq. inch. Specified plasticizers are: tricresyl phosphate, n-butanol diesters of adipic, sebacic and phthalic acid, 2-ethyl hexanol, 3. 5, 5-trimethylhexanol, a mixture of aliphatic alcohols containing seven to nine carbon atoms per molecule, polypropylene adipate and sebacate, and a dispersion of calcium stearate in dinonylphthalate. Calcium carboxate may be added to the plastisol. The alkaryl sulphonate is, preferably, in solution in a light mineral oil. The amount of alkaryl sulphonate may be between 0,5 and 6% by weight of the vinyl chloride polymer. Specified alkaryl sulphonates are: a solution containing 40% by weight of the calcium salt of an alkaryl sulphonic acid obtained as a by-product in the sulphuric acid refining of petroleum, a solution containing a mixture of the sodium, calcium or barium salts of di-o- and di-p-dodecyl benzene monosulphonic acids and a solution containing the calcium salts of a mixture of dodecyl benzene sulphonates. Specification 737,367 is referred to.ALSO:In making foamed plastisols, an inert gas or a volatile inert liquid is dispersed under super-atmospheric pressure in a closed container throughout the plastisol which comprises, in addition to a vinyl chloride polymer and a plasticiser, a small proportion of an alkali metal or alkaline earth metal alkaryl sulphonate soluble in the plasticiser. The plastisol is discharged from the container, by the pressure, in the form of an ungelled foam, which is then gelled by heat, e.g. incompletely gelled by radio-frequency heating and then completely gelled in a hot-air or infra-red oven. The polymer may be polyvinyl chloride or a copolymer of vinyl chloride with a minor proportion of vinyl acetate or vinylidene chloride. Specified inert gases are: carbon dioxide, nitrous oxide dichlorodifluoromethane and dichlorotetrafluoroethane. Specified inert liquids are: monofluorotrichloromethane, 1.1.2-trifluoro- 1.2.2-trichloroethane and dichlorodifluoromethane at a temperature of 5 DEG C. and a pressure of 40 lb. sq. in. Specified plasticisers are: tricresyl phosphate, n-butanol diesters of adipic, sebacic and phthalic acid, 2-ethyl hexanol, 3, 5, 5-trimethylhexanol, a mixture of aliphatic alcohols containing seven to nine carbon atoms per molecule, polypropylene adipate and sebacate, and a dispersion of calcium stearate in dinonylphthalate. Calcium carbonate may be added to the plastisol. The alkaryl sulphonate is, preferably, in solution in a light mineral oil. The amount of alkaryl sulphonate may be between 0,5 and 6% by weight of the vinyl chloride polymer. Specified alkaryl sulphonates are: a solution containing 40% by weight of the calcium salt of an alkaryl sulphonic acid obtained as a by-product in the sulphuric acid refining of p petroleum, a solution containing a mixture of the sodium, calcium or barium salts of di-o- and di-p-dodecyl benzene monosulphonic acids and a solution containing the calcium salts of a mixture of dodecyl benzene sulphonates. Specification 737,367 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3383557A GB855933A (en) | 1957-10-30 | 1957-10-30 | Improvements in the production of cellular materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3383557A GB855933A (en) | 1957-10-30 | 1957-10-30 | Improvements in the production of cellular materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB855933A true GB855933A (en) | 1960-12-14 |
Family
ID=10358070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3383557A Expired GB855933A (en) | 1957-10-30 | 1957-10-30 | Improvements in the production of cellular materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB855933A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3280288A (en) * | 1963-03-28 | 1966-10-18 | Bbc Brown Boveri & Cie | Compressed gas circuit breaker with closed gas circuit |
-
1957
- 1957-10-30 GB GB3383557A patent/GB855933A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3280288A (en) * | 1963-03-28 | 1966-10-18 | Bbc Brown Boveri & Cie | Compressed gas circuit breaker with closed gas circuit |
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