GB1202127A - Production of foamed resins - Google Patents

Production of foamed resins

Info

Publication number
GB1202127A
GB1202127A GB2623768A GB2623768A GB1202127A GB 1202127 A GB1202127 A GB 1202127A GB 2623768 A GB2623768 A GB 2623768A GB 2623768 A GB2623768 A GB 2623768A GB 1202127 A GB1202127 A GB 1202127A
Authority
GB
United Kingdom
Prior art keywords
isobutylene
mixture
lbs
blowing agent
weight
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
GB2623768A
Inventor
Stanley John Skinner
William Rees Foster
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.)
Monsanto Chemicals Ltd
Original Assignee
Monsanto Chemicals Ltd
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 Monsanto Chemicals Ltd filed Critical Monsanto Chemicals Ltd
Priority to GB2623768A priority Critical patent/GB1202127A/en
Publication of GB1202127A publication Critical patent/GB1202127A/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
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/468—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length in a plurality of parallel streams which unite during the foaming
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/141—Hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/149—Mixtures of blowing agents covered by more than one of the groups C08J9/141 - C08J9/143

Abstract

1,202,127. Extruding foamed thermoplastic synthetic resins. MONSANTO CHEMICALS Ltd. 21 April, 1969 [31 May. 19681, No. 26237/68. Addition to 1,034,120. Heading B5A. [Also in Division C3] The extrusion process for making foamed thermoplastic synthetic resin described in Specification 1,034,120 is modified in that the blowing agent used comprises an olefinic hydrocarbon, which term includes mono- and diolefinic hydrocarbons, having from three to five carbon atoms. Specifically mentioned are propylene, butylene, isobutylene, butadiene and isoprene, a preferred mixture for the process being polystytene with isobutylene. More than one of such blowing agents may be used or a mixture including a lower aliphatic hydrocarbon, e.g. isobutylene and pentane and isobutylene and trichlorofluoromethane, where the proportion of the lower aliphatic hydrocarbon may be up to 50% by weight. A list of nucleating agents is given, the resins mentioned being those given in the above-mentioned Specification. The resin/blowing agent mixture may be cooled prior to extrusion, e.g. by means of water, oil or low-pressure steam flow in a suitably disposed jacket. The extrusion dies that may be used are as described in Specifications 1,034,120, 1,098,408, 1.159,920 and 1,166,937. In ex amples, a polystyrene/isobutylene mixture having 11À5% by weight of the latter was extruded to form a board of density 1À28 lbs./cu. ft., a 1À35 lbs./cu. ft. polystyrene board was produced using a 70: 30% isobutylene/trichlorofluoromethane mixture, as blowing agent and a 1À55 lbs./cu. ft. polystyrene board was produced using 14% by weight butadiene in the foamable mixture.
GB2623768A 1968-05-31 1968-05-31 Production of foamed resins Expired GB1202127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2623768A GB1202127A (en) 1968-05-31 1968-05-31 Production of foamed resins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2623768A GB1202127A (en) 1968-05-31 1968-05-31 Production of foamed resins

Publications (1)

Publication Number Publication Date
GB1202127A true GB1202127A (en) 1970-08-12

Family

ID=10240482

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2623768A Expired GB1202127A (en) 1968-05-31 1968-05-31 Production of foamed resins

Country Status (1)

Country Link
GB (1) GB1202127A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013014452A1 (en) 2011-07-26 2013-01-31 Cambridge Enterprise Limited Supramolecular capsules
EP3209478A4 (en) * 2014-10-23 2018-07-04 3M Innovative Properties Company Foaming die and method of use
US10449702B2 (en) 2014-10-23 2019-10-22 3M Innovative Properties Company Laterally-coalesced foam slab

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013014452A1 (en) 2011-07-26 2013-01-31 Cambridge Enterprise Limited Supramolecular capsules
EP3209478A4 (en) * 2014-10-23 2018-07-04 3M Innovative Properties Company Foaming die and method of use
US10449702B2 (en) 2014-10-23 2019-10-22 3M Innovative Properties Company Laterally-coalesced foam slab

Similar Documents

Publication Publication Date Title
GB1408281A (en) Process for producing a cellular moulding
GB1046374A (en) Process for foaming thermoplastic polymers and foamed polymers obtained therewith
GB1098770A (en) Process for the preparation of fibrous, filamentous products
GB1204880A (en) Process for taking up oils
GB1098408A (en) Extrusion of resins
GB1321341A (en) Process for preparing moulded olefin polymer foam
GB1202127A (en) Production of foamed resins
GB1454579A (en) Profile extrusion process
ES553904A0 (en) A PROCEDURE FOR PRODUCING AN EXTENDED FOAM BODY, EXTRUDED FROM ALKENYL-AROMATIC THERMOPLASTIC RESIN.
GB1182964A (en) Process for the Production of Foamed or Foamable Resin Compositions.
GB1084000A (en) Extrusion of resins
GB1170803A (en) Production of Foamed Polypropylene
GB1141376A (en) Foamed resins production
GB1015872A (en) Improvements in or relating to expandable polystyrene
GB1210626A (en) Improvements in or relating to extrusion of foams of olefin polymers
GB1180980A (en) Improvements in or relating to Thermoplastic Resin Foams
GB1249220A (en) A process for producing elastic foam moulded articles
ATE233160T1 (en) COMPATIBILIZING AGENT FOR CARBON DIOXIDE FOAMED POLYOLEFINIC FOAMS
JPS5775832A (en) Extrusion foam molding
GB1190840A (en) The Manufacture of Particulate Expandable Polystyrene
JPS5738832A (en) Production of flame-retarding styrene resin foam
JPS5742739A (en) Blowing agent composition
GB1494927A (en) Styrene polymers expandable to give low density foams
IE34363L (en) Urea-formaldehyde foam
GB1300929A (en) Production of foamed thermoplastics

Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee