GB1225094A - - Google Patents
Info
- Publication number
- GB1225094A GB1225094A GB1225094DA GB1225094A GB 1225094 A GB1225094 A GB 1225094A GB 1225094D A GB1225094D A GB 1225094DA GB 1225094 A GB1225094 A GB 1225094A
- Authority
- GB
- United Kingdom
- Prior art keywords
- envelope
- polyurethane
- heating
- shrunk
- feb
- 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
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/82—Post-polymerisation treatment
-
- 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
- B29C61/003—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor characterised by the choice of material
-
- 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
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
1,225,094. Shrinkable polyurethane films. KABEL - UND METALLWERKE GUTEHOFFNUNGSHUTTE A.G. 12 Feb., 1969 [17 Feb., 1968], No. 7603/69. Heading B5B. A shrunk-on envelope is made by using as the envelope forming material a polyurethane which has not been cross-linked by irradiation at any stage in its production. A hollow body comprising the said polyurethane may be prepared by heating it to a temperature between 50‹ and 100‹ C., preferably to about 80‹ C., stretching at that temperature if not stretched before heating, cooling in the stretched condition and then shrinking to form the shrunk-on envelope by heating above 100‹ C., preferably about 170‹ C.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681704160 DE1704160A1 (en) | 1968-02-17 | 1968-02-17 | Use of polyurethane containing C-O and N-H groups as material for shrink articles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1225094A true GB1225094A (en) | 1971-03-17 |
Family
ID=5688683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1225094D Expired GB1225094A (en) | 1968-02-17 | 1969-02-12 |
Country Status (8)
Country | Link |
---|---|
AT (1) | AT294424B (en) |
BE (1) | BE727719A (en) |
CH (1) | CH514649A (en) |
DE (1) | DE1704160A1 (en) |
FR (1) | FR2002129A1 (en) |
GB (1) | GB1225094A (en) |
NL (1) | NL6901757A (en) |
SE (1) | SE351802B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62501778A (en) * | 1985-01-04 | 1987-07-16 | ソラテツク ラボラトリ−ス コ−ポレ−シヨン | Composition that softens at a predetermined temperature and its manufacturing method |
JPH0739506B2 (en) * | 1988-09-30 | 1995-05-01 | 三菱重工業株式会社 | Shape memory polymer foam |
JP2502132B2 (en) * | 1988-09-30 | 1996-05-29 | 三菱重工業株式会社 | Shape memory polyurethane elastomer molded body |
JPH066349B2 (en) * | 1988-10-18 | 1994-01-26 | 三菱重工業株式会社 | Shape memory tubular body and construction method thereof |
JPH02113016A (en) * | 1988-10-21 | 1990-04-25 | Mitsubishi Heavy Ind Ltd | Heat insulating material consisting of shape memorizing polymer foam |
-
1968
- 1968-02-17 DE DE19681704160 patent/DE1704160A1/en active Pending
-
1969
- 1969-01-31 AT AT100069A patent/AT294424B/en not_active IP Right Cessation
- 1969-01-31 BE BE727719D patent/BE727719A/xx unknown
- 1969-02-04 NL NL6901757A patent/NL6901757A/xx unknown
- 1969-02-04 CH CH166169A patent/CH514649A/en not_active IP Right Cessation
- 1969-02-12 SE SE191169A patent/SE351802B/xx unknown
- 1969-02-12 GB GB1225094D patent/GB1225094A/en not_active Expired
- 1969-02-17 FR FR6903920A patent/FR2002129A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
SE351802B (en) | 1972-12-11 |
AT294424B (en) | 1971-11-25 |
NL6901757A (en) | 1969-08-19 |
FR2002129A1 (en) | 1969-10-03 |
CH514649A (en) | 1971-10-31 |
DE1704160A1 (en) | 1971-04-22 |
BE727719A (en) | 1969-07-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |