JPS56129236A - Expandable composition and manufacture of expanded molding - Google Patents
Expandable composition and manufacture of expanded moldingInfo
- Publication number
- JPS56129236A JPS56129236A JP3179280A JP3179280A JPS56129236A JP S56129236 A JPS56129236 A JP S56129236A JP 3179280 A JP3179280 A JP 3179280A JP 3179280 A JP3179280 A JP 3179280A JP S56129236 A JPS56129236 A JP S56129236A
- Authority
- JP
- Japan
- Prior art keywords
- approx
- vinyl chloride
- mold
- mixture
- foaming agent
- 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.)
- Granted
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
PURPOSE: To obtain a highly expanded molding having a fine and uniform cellular structure, good compressive strength, and good dimensional stability, by adding a nitrile compound to a mixture of vinyl chloride, an organic solvent, and a foaming agent and then expanding the mixture.
CONSTITUTION: One hundred pts.wt. vinyl chloride resin (A), which may contain an inorganic filler in an amount approx. 1W9 times the weight of the vinyl chloride resin, approx. 30W80pts.wt. organic solvent (B), e.g., aromatic hydrocarbons of a boiling point of approx. 70W150°C, approx. 2W20pts.wt. foaming agent (C), e.g., N,N'-dinitrosopentamethylenetetramine, and approx. 10pts.wt. or less nitrile compound (D), e.g., acrylonitrile, nitrile rubber, etc., are mixed together. Then, the mixture is enclosed in a mold, heated uniformly to a temperature at which the foaming agent decomposes or vaporizes and also the vinyl chloride resin gells, and then cooled quickly while the mold is enclosed. Then, the mold is graudally depressurized and opened to obtain an expanded molding of an expansion ratio of approx. 2W5.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3179280A JPS56129236A (en) | 1980-03-13 | 1980-03-13 | Expandable composition and manufacture of expanded molding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3179280A JPS56129236A (en) | 1980-03-13 | 1980-03-13 | Expandable composition and manufacture of expanded molding |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56129236A true JPS56129236A (en) | 1981-10-09 |
JPS6241972B2 JPS6241972B2 (en) | 1987-09-05 |
Family
ID=12340913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3179280A Granted JPS56129236A (en) | 1980-03-13 | 1980-03-13 | Expandable composition and manufacture of expanded molding |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56129236A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59203753A (en) * | 1983-04-28 | 1984-11-17 | 有限会社林セメント工業 | Mortar or ready mixed concrete |
JP2003064232A (en) * | 2001-08-27 | 2003-03-05 | Yazaki Corp | Pvc-based resin composition |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS537944A (en) * | 1976-07-08 | 1978-01-24 | Nat Jutaku Kenzai | Rain door |
-
1980
- 1980-03-13 JP JP3179280A patent/JPS56129236A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS537944A (en) * | 1976-07-08 | 1978-01-24 | Nat Jutaku Kenzai | Rain door |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59203753A (en) * | 1983-04-28 | 1984-11-17 | 有限会社林セメント工業 | Mortar or ready mixed concrete |
JPS6256114B2 (en) * | 1983-04-28 | 1987-11-24 | Hayashi Semento Kogyo Jugen | |
JP2003064232A (en) * | 2001-08-27 | 2003-03-05 | Yazaki Corp | Pvc-based resin composition |
Also Published As
Publication number | Publication date |
---|---|
JPS6241972B2 (en) | 1987-09-05 |
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