Fabrication of foamed articles
839,578. Injection moulding foamed polyurethane. IMPERIAL CHEMICAL INDUSTRIES Ltd. Dec. 23, 1957 [Jan. 11, 1957], No. 1123/57. Class 87(2). Long slender articles of foamed polyurethane are made by injecting a polyurethane foam generating mixture into a hollow mould with relative motion between the i...
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| creator | WOOD JOHN FRANCIS |
| description | 839,578. Injection moulding foamed polyurethane. IMPERIAL CHEMICAL INDUSTRIES Ltd. Dec. 23, 1957 [Jan. 11, 1957], No. 1123/57. Class 87(2). Long slender articles of foamed polyurethane are made by injecting a polyurethane foam generating mixture into a hollow mould with relative motion between the injection nozzle and the mould so that the mixture is deposited along the length of the mould, and then allowing the mixture to generate polyurethane foam so as to fill the mould. The mould may be of rigid or flexible material, e.g. polyethylene, polytetrafluoroethylene natural or synthetic rubber, polyvinyl chloride and copolymers thereof, or a textile fabric composed of e:g. wool, rayon, cotton, nylon or polyester fibres. The fabric may adhere to the foam and form a reinforcement or may be slit longitudinally and removed from the foamed article. In Fig. 4, a flexible mould D of circular cross-section is compressed axially so as to be stored upon the nozzle C and withdrawn therefrom as the rnxiture is discharged. A mandrel G may be fed into the mould simultaneuosly so as to form a tubular article. Uniform distribution of the mixture is ensured by rotating the mould and mandrel. |
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Long slender articles of foamed polyurethane are made by injecting a polyurethane foam generating mixture into a hollow mould with relative motion between the injection nozzle and the mould so that the mixture is deposited along the length of the mould, and then allowing the mixture to generate polyurethane foam so as to fill the mould. The mould may be of rigid or flexible material, e.g. polyethylene, polytetrafluoroethylene natural or synthetic rubber, polyvinyl chloride and copolymers thereof, or a textile fabric composed of e:g. wool, rayon, cotton, nylon or polyester fibres. The fabric may adhere to the foam and form a reinforcement or may be slit longitudinally and removed from the foamed article. In Fig. 4, a flexible mould D of circular cross-section is compressed axially so as to be stored upon the nozzle C and withdrawn therefrom as the rnxiture is discharged. A mandrel G may be fed into the mould simultaneuosly so as to form a tubular article. Uniform distribution of the mixture is ensured by rotating the mould and mandrel.</description><language>eng</language><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; PERFORMING OPERATIONS ; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR ; SHAPING OR JOINING OF PLASTICS ; TRANSPORTING ; WORKING OF PLASTICS ; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><creationdate>1960</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19600629&DB=EPODOC&CC=GB&NR=839578A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76292</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19600629&DB=EPODOC&CC=GB&NR=839578A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WOOD JOHN FRANCIS</creatorcontrib><title>Fabrication of foamed articles</title><description>839,578. Injection moulding foamed polyurethane. IMPERIAL CHEMICAL INDUSTRIES Ltd. Dec. 23, 1957 [Jan. 11, 1957], No. 1123/57. Class 87(2). Long slender articles of foamed polyurethane are made by injecting a polyurethane foam generating mixture into a hollow mould with relative motion between the injection nozzle and the mould so that the mixture is deposited along the length of the mould, and then allowing the mixture to generate polyurethane foam so as to fill the mould. The mould may be of rigid or flexible material, e.g. polyethylene, polytetrafluoroethylene natural or synthetic rubber, polyvinyl chloride and copolymers thereof, or a textile fabric composed of e:g. wool, rayon, cotton, nylon or polyester fibres. The fabric may adhere to the foam and form a reinforcement or may be slit longitudinally and removed from the foamed article. In Fig. 4, a flexible mould D of circular cross-section is compressed axially so as to be stored upon the nozzle C and withdrawn therefrom as the rnxiture is discharged. A mandrel G may be fed into the mould simultaneuosly so as to form a tubular article. Uniform distribution of the mixture is ensured by rotating the mould and mandrel.</description><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</subject><subject>PERFORMING OPERATIONS</subject><subject>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</subject><subject>SHAPING OR JOINING OF PLASTICS</subject><subject>TRANSPORTING</subject><subject>WORKING OF PLASTICS</subject><subject>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1960</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJBzS0wqykxOLMnMz1PIT1NIy0_MTU1RSCwqyUzOSS3mYWBNS8wpTuWF0txADa4hzh66qQX58anFBYnJqXmpJfHuThbGlqbmFo7GBBUAAB26Izk</recordid><startdate>19600629</startdate><enddate>19600629</enddate><creator>WOOD JOHN FRANCIS</creator><scope>EVB</scope></search><sort><creationdate>19600629</creationdate><title>Fabrication of foamed articles</title><author>WOOD JOHN FRANCIS</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_GB839578A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1960</creationdate><topic>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</topic><topic>PERFORMING OPERATIONS</topic><topic>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</topic><topic>SHAPING OR JOINING OF PLASTICS</topic><topic>TRANSPORTING</topic><topic>WORKING OF PLASTICS</topic><topic>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</topic><toplevel>online_resources</toplevel><creatorcontrib>WOOD JOHN FRANCIS</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WOOD JOHN FRANCIS</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Fabrication of foamed articles</title><date>1960-06-29</date><risdate>1960</risdate><abstract>839,578. Injection moulding foamed polyurethane. IMPERIAL CHEMICAL INDUSTRIES Ltd. Dec. 23, 1957 [Jan. 11, 1957], No. 1123/57. Class 87(2). Long slender articles of foamed polyurethane are made by injecting a polyurethane foam generating mixture into a hollow mould with relative motion between the injection nozzle and the mould so that the mixture is deposited along the length of the mould, and then allowing the mixture to generate polyurethane foam so as to fill the mould. The mould may be of rigid or flexible material, e.g. polyethylene, polytetrafluoroethylene natural or synthetic rubber, polyvinyl chloride and copolymers thereof, or a textile fabric composed of e:g. wool, rayon, cotton, nylon or polyester fibres. The fabric may adhere to the foam and form a reinforcement or may be slit longitudinally and removed from the foamed article. In Fig. 4, a flexible mould D of circular cross-section is compressed axially so as to be stored upon the nozzle C and withdrawn therefrom as the rnxiture is discharged. A mandrel G may be fed into the mould simultaneuosly so as to form a tubular article. Uniform distribution of the mixture is ensured by rotating the mould and mandrel.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
| title | Fabrication of foamed articles |
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