GB699655A - Improvements in apparatus and methods for producing latex foam - Google Patents

Improvements in apparatus and methods for producing latex foam

Info

Publication number
GB699655A
GB699655A GB12405/51A GB1240551A GB699655A GB 699655 A GB699655 A GB 699655A GB 12405/51 A GB12405/51 A GB 12405/51A GB 1240551 A GB1240551 A GB 1240551A GB 699655 A GB699655 A GB 699655A
Authority
GB
United Kingdom
Prior art keywords
latex
passes
pipe
cup
froth
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
Application number
GB12405/51A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Uniroyal Inc
Original Assignee
United States Rubber Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by United States Rubber Co filed Critical United States Rubber Co
Publication of GB699655A publication Critical patent/GB699655A/en
Expired legal-status Critical Current

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
    • B29C44/3442—Mixing, kneading or conveying the foamable 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

Abstract

699,655. Foaming latex. UNITED STATES RUBBER CO. May 28, 1951 [June 8, 1950], No. 12405/51. Class 70 [Also in Group II] A foamed latex is produced continuously by injecting a gas into a frothing liquid in a closed receptacle at above atmospheric pressure, feeding the formed froth under such pressure through a discharge passage and mixing latex therewith. In operation, gas passes through a metering pump 25 into the receptacle 13 through needles 17 into the frothing liquid e.g. a soap solution which has been delivered through a metering pump 22. Froth is formed and passes through a pipe 18 into a casing 27 which contains a shearing device, consisting of a series of fixed 29, 31, and rotatable 28 bands on a rotor 32. Latex is metered through a pump 41 and passes to a distributing cup 44 situated in a pipe 43 extending downwardly from the housing 27. A gelling agent e.g. sodium or potasium silicofluoride is metered through a pump 53 and mixes with the latex. Froth leaves the housing 27 through apertures 33 in the bands and passes into and over the lip of the cup 44 where it mixes with the latex, mainly in the annulus formed between the outer periphery of the cup 44 and the inner walls of the pipe 43. Mixing is furthered by a feed screw 55 which passes the mixture through conduits into a mould 56, 57, which when filled is placed in vulcanizing apparatus. An alternative feeding mechanism for the mixture is shown in Fig. 3 consisting of discs 66 and blades 67 which squeeze and scrape the latex foam from the pipe 43.
GB12405/51A 1950-06-08 1951-05-28 Improvements in apparatus and methods for producing latex foam Expired GB699655A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US699655XA 1950-06-08 1950-06-08

Publications (1)

Publication Number Publication Date
GB699655A true GB699655A (en) 1953-11-11

Family

ID=22092285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12405/51A Expired GB699655A (en) 1950-06-08 1951-05-28 Improvements in apparatus and methods for producing latex foam

Country Status (1)

Country Link
GB (1) GB699655A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5382397A (en) * 1988-03-30 1995-01-17 Nordson Corporation Method of forming closed cell foam seals for automotive body seams
GB2304717A (en) * 1995-09-06 1997-03-26 Lancastria Ltd Foam manufacturing method and apparatus
CN107891567A (en) * 2017-12-28 2018-04-10 重庆坤钰映辉汽车零部件有限公司 A kind of macromolecule raw material foam device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5382397A (en) * 1988-03-30 1995-01-17 Nordson Corporation Method of forming closed cell foam seals for automotive body seams
GB2304717A (en) * 1995-09-06 1997-03-26 Lancastria Ltd Foam manufacturing method and apparatus
CN107891567A (en) * 2017-12-28 2018-04-10 重庆坤钰映辉汽车零部件有限公司 A kind of macromolecule raw material foam device
CN107891567B (en) * 2017-12-28 2024-04-12 重庆坤钰映辉汽车零部件有限公司 Polymer raw material foaming device

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