DE2904943C2 - - Google Patents
Info
- Publication number
- DE2904943C2 DE2904943C2 DE19792904943 DE2904943A DE2904943C2 DE 2904943 C2 DE2904943 C2 DE 2904943C2 DE 19792904943 DE19792904943 DE 19792904943 DE 2904943 A DE2904943 A DE 2904943A DE 2904943 C2 DE2904943 C2 DE 2904943C2
- Authority
- DE
- Germany
- 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
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/56—After-treatment of articles, e.g. for altering the shape
- B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
- B29C44/5636—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching with the addition of heat
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US87673678A | 1978-02-10 | 1978-02-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2904943A1 DE2904943A1 (de) | 1979-08-16 |
DE2904943C2 true DE2904943C2 (fi) | 1987-04-09 |
Family
ID=25368461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19792904943 Granted DE2904943A1 (de) | 1978-02-10 | 1979-02-09 | Verfahren zum verdichten von offenzelligem polyurethan-schaumstoff |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS54163969A (fi) |
DE (1) | DE2904943A1 (fi) |
GB (1) | GB2014168B (fi) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4041864A1 (de) * | 1990-12-27 | 1992-07-02 | Helmut Pelzer | Wiederverwertung duroplastischer polyurethanschaumteile |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4260575A (en) * | 1979-11-05 | 1981-04-07 | Koss Corporation | Method for molding ear cushions |
JPS5695976A (en) * | 1979-12-28 | 1981-08-03 | Toray Silicone Co Ltd | Application of two_component silicone sealant |
JPS59199222A (ja) * | 1983-04-27 | 1984-11-12 | Sekisui Chem Co Ltd | 熱可塑性樹脂発泡体の製造方法およびその製造装置 |
GB8912701D0 (en) * | 1989-06-02 | 1989-07-19 | Hyman Int Ltd | Production of porous materials |
US5702652A (en) * | 1990-05-31 | 1997-12-30 | Crain Industries, Inc. | Controlled cooling of porous materials |
US5171756A (en) * | 1991-07-31 | 1992-12-15 | Crain Industries, Inc. | Three stage cooling of porous materials |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3475525A (en) * | 1966-09-22 | 1969-10-28 | Timothy V Peters | Process of reticulating polyurethane foams |
US3577519A (en) * | 1968-11-29 | 1971-05-04 | Olin Mathieson | Process for controlling the amount of densification in polyurethane foams and products produced thereby |
-
1979
- 1979-02-08 JP JP1287179A patent/JPS54163969A/ja active Pending
- 1979-02-08 GB GB7904451A patent/GB2014168B/en not_active Expired
- 1979-02-09 DE DE19792904943 patent/DE2904943A1/de active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4041864A1 (de) * | 1990-12-27 | 1992-07-02 | Helmut Pelzer | Wiederverwertung duroplastischer polyurethanschaumteile |
Also Published As
Publication number | Publication date |
---|---|
JPS54163969A (en) | 1979-12-27 |
GB2014168B (en) | 1982-07-21 |
DE2904943A1 (de) | 1979-08-16 |
GB2014168A (en) | 1979-08-22 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
AG | Has addition no. |
Ref country code: DE Ref document number: 2943859 Format of ref document f/p: P |
|
D2 | Grant after examination | ||
AG | Has addition no. |
Ref country code: DE Ref document number: 2943859 Format of ref document f/p: P |
|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |