GB539786A - Improvements in and relating to the production of porous or spongy articles of rubberand rubber-like material - Google Patents
Improvements in and relating to the production of porous or spongy articles of rubberand rubber-like materialInfo
- Publication number
- GB539786A GB539786A GB315940A GB315940A GB539786A GB 539786 A GB539786 A GB 539786A GB 315940 A GB315940 A GB 315940A GB 315940 A GB315940 A GB 315940A GB 539786 A GB539786 A GB 539786A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- container
- froth
- rubber
- fabric
- 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
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
- B29C44/586—Moulds with a cavity increasing in size during foaming
-
- 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
- B29C44/58—Moulds
- B29C44/588—Moulds with means for venting, e.g. releasing foaming gas
-
- 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
- B29K2021/00—Use of unspecified rubbers as moulding 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- 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
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
-
- 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
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
539,786. Moulding rubber froth. TALALAY, J. A. Feb. 19, 1940, No. 3159. [Class 87 (ii)] Rubber froth is allowed to contract in a container at least one wall of which is free to move in one of the directions of contraction of the froth. The container a has an inner perforated plate g suspended on bolts d passing through holes e in an outer lid b. A sheet of fabric c is secured to the plate g and to the edges of the box. The fabric may be disposed above the plate g. Latex is poured in the container through a funnel j, is frothed as by pressure reduction, expands and pushes out the plate g, and on gelling contracts, the plate g following the descending surface of the froth. The latex may be frothed before introduction into the container, and may contain fibrous material. The fabric c may be impregnated with a coagulating agent such as ammonium nitrate. In a modification the bolts d are omitted and the plate g is replaced by a ring. Specification 484,798 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB315940A GB539786A (en) | 1940-02-19 | 1940-02-19 | Improvements in and relating to the production of porous or spongy articles of rubberand rubber-like material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB315940A GB539786A (en) | 1940-02-19 | 1940-02-19 | Improvements in and relating to the production of porous or spongy articles of rubberand rubber-like material |
Publications (1)
Publication Number | Publication Date |
---|---|
GB539786A true GB539786A (en) | 1941-09-24 |
Family
ID=9753047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB315940A Expired GB539786A (en) | 1940-02-19 | 1940-02-19 | Improvements in and relating to the production of porous or spongy articles of rubberand rubber-like material |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB539786A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2770864A (en) * | 1952-12-10 | 1956-11-20 | Weese Harry | Method for producing a surface of desired contour on a moldable substance |
US3056168A (en) * | 1959-03-31 | 1962-10-02 | Stubnitz Greene Corp | Method of molding polyether urethane foam articles |
US3080613A (en) * | 1960-01-28 | 1963-03-12 | Gen Motors Corp | Method of molding a polyurethane foam object having a relatively flat top surface |
US4014967A (en) * | 1974-01-28 | 1977-03-29 | Osterreichische Heraklith Aktiengesellschaft | Method and mold for the discontinuous production of foam plastic parts |
CN102529008A (en) * | 2010-12-31 | 2012-07-04 | 广州拜尔冷链聚氨酯科技有限公司 | Bulk foam foaming mould and bulk foam foaming method |
-
1940
- 1940-02-19 GB GB315940A patent/GB539786A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2770864A (en) * | 1952-12-10 | 1956-11-20 | Weese Harry | Method for producing a surface of desired contour on a moldable substance |
US3056168A (en) * | 1959-03-31 | 1962-10-02 | Stubnitz Greene Corp | Method of molding polyether urethane foam articles |
US3080613A (en) * | 1960-01-28 | 1963-03-12 | Gen Motors Corp | Method of molding a polyurethane foam object having a relatively flat top surface |
US4014967A (en) * | 1974-01-28 | 1977-03-29 | Osterreichische Heraklith Aktiengesellschaft | Method and mold for the discontinuous production of foam plastic parts |
CN102529008A (en) * | 2010-12-31 | 2012-07-04 | 广州拜尔冷链聚氨酯科技有限公司 | Bulk foam foaming mould and bulk foam foaming method |
CN102529008B (en) * | 2010-12-31 | 2016-03-30 | 广州拜尔冷链聚氨酯科技有限公司 | Bulk frostproof froth n mould and foaming method thereof |
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