GB682050A - Process for making microporous objects form vinyl chloride polymers - Google Patents
Process for making microporous objects form vinyl chloride polymersInfo
- Publication number
- GB682050A GB682050A GB3332/51A GB333251A GB682050A GB 682050 A GB682050 A GB 682050A GB 3332/51 A GB3332/51 A GB 3332/51A GB 333251 A GB333251 A GB 333251A GB 682050 A GB682050 A GB 682050A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filler
- chloride
- briquette
- particles
- polyvinyl chloride
- 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
- C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
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
Microporous polyvinyl chloride is made by mixing particles of polyvinyl chloride and particles of a filler of an average size of 100 microns together with a plasticizer, shaping the mixture into the form of a briquette which is heated in the open atmosphere, preferably at 350-380 DEG F., to form a gel, and soaking the briquette in a solvent for the filler, which is inert to the polyvinyl chloride, to leach out the filler particles. The filler may be sodium sulphate, chloride or nitrate, potassium chloride or lithium chloride, all of which may be washed out of the briquette by water. The plasticizer may be one or more of dioctyl phthalate, diisooctyl phthalate, tricresyl phosphate, dibutyl tetrachloro-phthalate, dioctyl sebacate, butyl benzyl sebacate and tetrahydrofurfuryl oleate. A stabilizer may also be incorporated.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US682050XA | 1950-02-15 | 1950-02-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB682050A true GB682050A (en) | 1952-11-05 |
Family
ID=22081082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3332/51A Expired GB682050A (en) | 1950-02-15 | 1951-01-30 | Process for making microporous objects form vinyl chloride polymers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB682050A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0188114A2 (en) * | 1984-12-19 | 1986-07-23 | Scimat Limited | Microporous films |
-
1951
- 1951-01-30 GB GB3332/51A patent/GB682050A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0188114A2 (en) * | 1984-12-19 | 1986-07-23 | Scimat Limited | Microporous films |
EP0188114A3 (en) * | 1984-12-19 | 1987-11-11 | Raychem Limited | Microporous films |
EP0397222A3 (en) * | 1984-12-19 | 1991-02-27 | Scimat Limited | Microporous films |
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