JPS57156225A - Preparation of thermally shrinkable molded body with deformed shape - Google Patents
Preparation of thermally shrinkable molded body with deformed shapeInfo
- Publication number
- JPS57156225A JPS57156225A JP4201981A JP4201981A JPS57156225A JP S57156225 A JPS57156225 A JP S57156225A JP 4201981 A JP4201981 A JP 4201981A JP 4201981 A JP4201981 A JP 4201981A JP S57156225 A JPS57156225 A JP S57156225A
- Authority
- JP
- Japan
- Prior art keywords
- cross
- linking
- thermally shrinkable
- coated
- assistant
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
- B29C61/06—Making preforms having internal stresses, e.g. plastic memory
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/24—Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised
Landscapes
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
PURPOSE:To make a partial change for shrinking forms and to obtain easily a thermally shrinkable molded body of special form by coating part of a thermally shrinkable molded part with cross-linking agent or cross-linking assistant accelerator to conduct a repeated cross-linking treatment and then to give a thermal shrinkage. CONSTITUTION:Part of a thermally shrinkable molded part which is not desired to be shrunk is coated with cross-linking accelerator and heated or coated with electronic ray cross-linking assistant agent to conduct a repeated cross-linking treatment by use of reirradiation of electronic beams or the like. In this method the coated part does not shrink or hardly shrinks even after heated and a thermally shrinkable part of special form can be obtained. Besides, it is preferable that the part coated with cross-linking agent, cross-linking assistant accelerator is wound by rubber, plastic tape, etc. under pressure and then cross-linked. Dicumaric peroxide for the cross-linking agent, triaryl isocyanolate for the electronic cross-linking assistant etc. are used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4201981A JPS57156225A (en) | 1981-03-23 | 1981-03-23 | Preparation of thermally shrinkable molded body with deformed shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4201981A JPS57156225A (en) | 1981-03-23 | 1981-03-23 | Preparation of thermally shrinkable molded body with deformed shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57156225A true JPS57156225A (en) | 1982-09-27 |
Family
ID=12624452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4201981A Pending JPS57156225A (en) | 1981-03-23 | 1981-03-23 | Preparation of thermally shrinkable molded body with deformed shape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57156225A (en) |
-
1981
- 1981-03-23 JP JP4201981A patent/JPS57156225A/en active Pending
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