DE2134668
1361242 Non woven fabrics MINNESOTA MINING & MFG CO 7 July 1971 [8 July 1970] 31988/71 Heading D1R [Also in Division B5] A sheet-like material consists of a non- woven fibrous web impregnated with an electrically-insulating, moisture-insensitive thermoset resin, the web comprising a blend of at...
Saved in:
Main Author | |
---|---|
Format | Patent |
Language | English |
Published |
23.11.1978
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Abstract | 1361242 Non woven fabrics MINNESOTA MINING & MFG CO 7 July 1971 [8 July 1970] 31988/71 Heading D1R [Also in Division B5] A sheet-like material consists of a non- woven fibrous web impregnated with an electrically-insulating, moisture-insensitive thermoset resin, the web comprising a blend of at least 15% by weight of discontinuous synthetic heat-softenable fibres, at least partially softenable at temperatures below 200‹C and from 10 to 75% by weight of discontinuous synthetic fibres resistant to temperatures in excess of 275‹C. The heat-softenable fibres are preferably monofilament staple polyethylene terephthalate fibres and the heat-resistant fibres are preferably monofilament aromatic polyamide fibres. Rayon fibres may also be used as the heat-resistant fibres. The blend may also comprise fibres which resist softening in the 150 to 250‹C range e.g. drawn polyethylene terephthalate fibres. The non-woven web may be made by air-laying or garnetting a blend of the fibres, needling the product to increase the density and preferably hot-pressing and/or calendering the needled product. The thermoset resin which may be applied by dipping may be a polyurethane, a silicone, an unsaturated polyester, an acrylic resin, an epoxy resin, a urea-aldehyde resin, a melamine-aldehyde resin or a phenol-aldehyde resin, the resin being cured by heating. The aired material may be used as a backing for an electrically conductive layer e.g. in the preparation of printed circuits. |
---|---|
AbstractList | 1361242 Non woven fabrics MINNESOTA MINING & MFG CO 7 July 1971 [8 July 1970] 31988/71 Heading D1R [Also in Division B5] A sheet-like material consists of a non- woven fibrous web impregnated with an electrically-insulating, moisture-insensitive thermoset resin, the web comprising a blend of at least 15% by weight of discontinuous synthetic heat-softenable fibres, at least partially softenable at temperatures below 200‹C and from 10 to 75% by weight of discontinuous synthetic fibres resistant to temperatures in excess of 275‹C. The heat-softenable fibres are preferably monofilament staple polyethylene terephthalate fibres and the heat-resistant fibres are preferably monofilament aromatic polyamide fibres. Rayon fibres may also be used as the heat-resistant fibres. The blend may also comprise fibres which resist softening in the 150 to 250‹C range e.g. drawn polyethylene terephthalate fibres. The non-woven web may be made by air-laying or garnetting a blend of the fibres, needling the product to increase the density and preferably hot-pressing and/or calendering the needled product. The thermoset resin which may be applied by dipping may be a polyurethane, a silicone, an unsaturated polyester, an acrylic resin, an epoxy resin, a urea-aldehyde resin, a melamine-aldehyde resin or a phenol-aldehyde resin, the resin being cured by heating. The aired material may be used as a backing for an electrically conductive layer e.g. in the preparation of printed circuits. |
Author | GROFF, GAYLORD L., ST. PAUL, MINN. (V.ST.A.) |
Author_xml | – fullname: GROFF, GAYLORD L., ST. PAUL, MINN. (V.ST.A.) |
BookMark | eNrjYmDJy89L5WTgdHE1MjQ2MTOz4GFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8XD1TkbGRCgBAH01HDU |
ContentType | Patent |
DBID | EVB |
DatabaseName | esp@cenet |
DatabaseTitleList | |
Database_xml | – sequence: 1 dbid: EVB name: esp@cenet url: http://worldwide.espacenet.com/singleLineSearch?locale=en_EP sourceTypes: Open Access Repository |
DeliveryMethod | fulltext_linktorsrc |
Discipline | Medicine Chemistry Sciences |
ExternalDocumentID | DE2134668B2 |
GroupedDBID | EVB |
ID | FETCH-epo_espacenet_DE2134668B23 |
IEDL.DBID | EVB |
IngestDate | Fri Jul 19 15:37:24 EDT 2024 |
IsOpenAccess | true |
IsPeerReviewed | false |
IsScholarly | false |
Language | English |
LinkModel | DirectLink |
MergedId | FETCHMERGED-epo_espacenet_DE2134668B23 |
Notes | Application Number: DE19712134668 |
OpenAccessLink | https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19781123&DB=EPODOC&CC=DE&NR=2134668B2 |
ParticipantIDs | epo_espacenet_DE2134668B2 |
PublicationCentury | 1900 |
PublicationDate | 19781123 |
PublicationDateYYYYMMDD | 1978-11-23 |
PublicationDate_xml | – month: 11 year: 1978 text: 19781123 day: 23 |
PublicationDecade | 1970 |
PublicationYear | 1978 |
RelatedCompanies | MINNESOTA MINING AND MANUFACTURING CO., SAINT PAUL, MINN. (V.ST.A.) |
RelatedCompanies_xml | – name: MINNESOTA MINING AND MANUFACTURING CO., SAINT PAUL, MINN. (V.ST.A.) |
Score | 2.3487885 |
Snippet | 1361242 Non woven fabrics MINNESOTA MINING & MFG CO 7 July 1971 [8 July 1970] 31988/71 Heading D1R [Also in Division B5] A sheet-like material consists of a... |
SourceID | epo |
SourceType | Open Access Repository |
SubjectTerms | BRAIDING CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS COTTON-WOOL ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS KNITTING LACE-MAKING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS NON-WOVEN FABRICS PRINTED CIRCUITS TEXTILES TRIMMINGS WADDING |
Title | DE2134668 |
URI | https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19781123&DB=EPODOC&locale=&CC=DE&NR=2134668B2 |
hasFullText | 1 |
inHoldings | 1 |
isFullTextHit | |
isPrint | |
link | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwY2BQSTS2NE5Ks0jVNbG0SNY1MQdmqURjI1Nd0Ha9ZGCiMTRIBu1G9vUz8wg18YowjWBiyITthQGfE1oOPhwRmKOSgfm9BFxeFyAGsVzAayuL9ZMygUL59m4hti5qKZDtYqBtk0bGai5Otq4B_i7-zmrOzrYurmp-Qbagg8vMzCycgKU1K6gVDTpm3zXMCbQppQC5RnETZGALABqWVyLEwJSaJ8zA6Qy7eE2YgcMXOt8NZEKzXrEIA6eLK9R0UQYFN9cQZw9doJnxcPfHw-WdjIzFGFiA3fpUCQaFNLM0k1TLRBMjwxQjE-Mky0QjU4tUQ6MU8-RU0IE0hpIMkjiNkcIjJ83AZQjuGhrqGhnLMLCUFJWmygIrzpIkObCXAXd3bho |
link.rule.ids | 230,309,786,891,25594,76903 |
linkProvider | European Patent Office |
linkToHtml | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwfV1dS8MwFL2MKc43nYrzcw_St6JN0q-HIrRpqbp2Q6rsrfQjhb3M4Sr-fW9iN33Rt5DAIYGce7lJzgnATUFdWjaO0JnrVDqzkVIFJaYu5XoVbhrjrpJq5CS14hf2ODfnPVhstDDKJ_RTmSMioyrke6vi9ernEIurt5Xr23KBXW_3UeZxrf6Wi0nZJKEa971wNuXTQAsCj4da-uxJ4zLLcnyM1js2VoSqUnr1pShl9TujRAewO0OwZXsIPbEcwiDYfLw2hL2ku-_GZke99REMeNihH8M4CrMg1hEz384_3477hJ5AH8t6cQrjxmqYcAtGjJowWroFMR1hkNquhDSkMUYw-hPm7J-xaxjEWTLJJw_p0znsG6pMNHRCL6Dfvn-IS0yibXmllv8FwRZxBA |
openUrl | ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Apatent&rft.title=DE2134668&rft.inventor=GROFF%2C+GAYLORD+L.%2C+ST.+PAUL%2C+MINN.+%28V.ST.A.%29&rft.date=1978-11-23&rft.externalDBID=B2&rft.externalDocID=DE2134668B2 |