GB1338944A - Moulded foam plastics articles having zones of differing density - Google Patents
Moulded foam plastics articles having zones of differing densityInfo
- Publication number
- GB1338944A GB1338944A GB5311871A GB5311871A GB1338944A GB 1338944 A GB1338944 A GB 1338944A GB 5311871 A GB5311871 A GB 5311871A GB 5311871 A GB5311871 A GB 5311871A GB 1338944 A GB1338944 A GB 1338944A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zones
- differing density
- foam plastics
- nov
- foam
- 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
-
- 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
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/1209—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements by impregnating a preformed part, e.g. a porous lining
-
- 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
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
- B29C44/0415—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by regulating the pressure of the material during or after filling of the mould, e.g. by local venting
-
- 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
- B29C44/3403—Foaming under special conditions, e.g. in sub-atmospheric pressure, in or on a liquid
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Nonwoven Fabrics (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
1338944 Foamed moulded plastics BAYER AG 16 Nov 1971 [18 Nov 1970] 53118/71 Headings C3C and C3R [Also in Divisions B5] In a process of moulding a foamed plastics article having zones of differing density, a fibrous fleece, i.e. a non-woven fabric is inserted in a mould cavity and air is sucked therefrom before introducing a foam-forming reaction mixture into the cavity which reacts to form the foam. The fleece may comprise fibres of synthetic resin, metal, boron, carbon or glass and the reaction mixture may comprise a polyurethane, an epoxy resin, vinyl-formaldehyde resin or polyamide.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702056650 DE2056650A1 (en) | 1970-11-18 | 1970-11-18 | Process for the production of foam bodies with zones of different densities and foam bodies produced by the process |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1338944A true GB1338944A (en) | 1973-11-28 |
Family
ID=5788427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5311871A Expired GB1338944A (en) | 1970-11-18 | 1971-11-16 | Moulded foam plastics articles having zones of differing density |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE775437A (en) |
DE (1) | DE2056650A1 (en) |
FR (1) | FR2115240A1 (en) |
GB (1) | GB1338944A (en) |
IT (1) | IT942559B (en) |
NL (1) | NL7115930A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2642003A1 (en) * | 1989-01-21 | 1990-07-27 | Bbs Autoteile | EXPANDED PIECE CONTAINING A FELT STRIP, METHOD AND MANUFACTURING DEVICE THEREOF |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55150333A (en) * | 1979-05-11 | 1980-11-22 | Nisshinbo Ind Inc | Manufacturing of fiber reinforced resin foaming body |
-
1970
- 1970-11-18 DE DE19702056650 patent/DE2056650A1/en active Pending
-
1971
- 1971-11-16 IT IT3117271A patent/IT942559B/en active
- 1971-11-16 GB GB5311871A patent/GB1338944A/en not_active Expired
- 1971-11-17 BE BE775437A patent/BE775437A/xx unknown
- 1971-11-18 NL NL7115930A patent/NL7115930A/xx unknown
- 1971-11-18 FR FR7141336A patent/FR2115240A1/fr not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2642003A1 (en) * | 1989-01-21 | 1990-07-27 | Bbs Autoteile | EXPANDED PIECE CONTAINING A FELT STRIP, METHOD AND MANUFACTURING DEVICE THEREOF |
GB2228484A (en) * | 1989-01-21 | 1990-08-29 | Bbs Autoteile | Foamed component |
Also Published As
Publication number | Publication date |
---|---|
BE775437A (en) | 1972-03-16 |
DE2056650A1 (en) | 1972-05-25 |
FR2115240A1 (en) | 1972-07-07 |
NL7115930A (en) | 1972-05-23 |
IT942559B (en) | 1973-04-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |