# US 9,434,143 B2 · Extensible laminar material, particularly for sanitary articles, and method of producing same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,434,143 B2 - Document ID: US9434143B2 - Status: Granted - Kind: B2 - Application number: 12/989,905 - Filed: 2009-04-24 - Published: 2011-02-17 - Granted: 2016-09-06 - Earliest claimed: 2008-04-30 - Assignees: Fameccanica.Data S.p.A. - Applicants: Gabriele Sablone - Inventors: Gabriele Sablone - Web page: https://patentgrep.com/patent/US9434143B2 ## CPC - B32B 37/1292: {selectively, e.g. in stripes, in patterns (B32B37/0076 takes precedence)} - A61F 13/15593: {having elastic ribbons fixed thereto; Devices for applying the ribbons} - A61F 13/15739: {Sealing, e.g. involving cutting} - A61F 13/15756: {Applying tabs, strips, tapes, loops; Knotting the ends of pads} - A61F 13/4902: {characterised by the elastic material} - B29C 65/08: using ultrasonic vibrations {(non-plastics element to plastics elements B29C65/645)} - B29C 65/5057: {positioned between the surfaces to be joined (B29C65/5035 takes precedence)} - B29C 65/7855: {Provisory fixing} - B29C 66/1122: {Single lap to lap joints, i.e. overlap joints (B29C66/45, B29C66/472, B29C66/52272 take precedence)} - B29C 66/21: {said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding} - B29C 66/346: {Making joints having variable thicknesses in the joint area, e.g. by using jaws having an adapted configuration} - B29C 66/436: {Joining sheets for making articles comprising cushioning or padding materials, the weld being performed through the cushioning material, e.g. car seats (joining through openings B29C66/304)} - B29C 66/7294: {Non woven mats, e.g. felt} - B29C 66/80: {General aspects of machine operations or constructions and parts thereof} - B29C 66/81431: {comprising a single cavity, e.g. a groove} - B32B 7/04: Interconnection of layers - B32B 7/05: the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection (using interposed adhesives or bonding materials applied in spaced arrangements B32B7/14) - B32B 7/08: by mechanical means - B32B 7/14: applied in spaced arrangements, e.g. in stripes - B32B 37/144: {using layers with different mechanical or chemical conditions or properties, e.g. layers with different thermal shrinkage, layers under tension during bonding (constructional features for tensioning B32B38/1825)} - B29C 65/02: by heating, with or without pressure - B29C 65/5021: {being multi-layered} - B29C 65/7847: {using vacuum to hold at least one of the parts to be joined (vacuum work holders in general B25B11/005)} - B29C 66/8322: {Joining or pressing tools reciprocating along one axis} - B29L 2031/4878: {Diapers, napkins} - B32B 2309/10: linear, e.g. length, distance, width - B32B 2310/028: using vibration, e.g. sonic or ultrasonic - B32B 2555/02: Diapers or napkins - Y10T 428/24025: Superposed movable attached layers or components - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - 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 (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract An extensible laminar material 100 includes an extensible layer 106 coupled to at least one laminar layer 102, 104. The extension of the extensible layer 106 starting from a non-extended condition determines the extension of the laminar layer(s) 102, 104 while the return of the extensible layer 106 toward the non-extended condition determines the pulling of the laminar layer(s) 102, 104 into a wrinkled condition. The extensible layer 106 and at least one laminar layer 102, 104 are connected by welding to avoid their detachment. The extensible layer 106 is anchored to at least one laminar layer 102, 104 by lines of spread adhesive 108, 108′. The welded connection is absent in correspondence of the lines of spread adhesive 108, 108′. Preferably, the material is in the form of a web 100 extensible transversally to the longitudinal extension of the web with the lines of spread adhesive 108, 108′ extending along the sides of the web. ## Claims ### Claim 1 An extensible laminar material comprising: an extensible layer configured to be extendable from a non-extended condition to an extended condition, and at least one laminar layer, the extensible layer being coupled to the at least one laminar layer by welds arranged in a selected pattern and by lines of spread adhesive applied at selected locations such that the extension of said extensible layer from the non-extended condition to the extended condition causes the extension of said at least one laminar layer and the return of said extensible layer toward said non-extended condition causes the pulling of said at least one laminar layer into a wrinkled condition, wherein said welds are absent in all the selected locations where said extensible layer and said at least one laminar layer are coupled by said lines of spread adhesive. ### Claim 2 (depends on 1) The material according to claim 1, further comprising an array of openings configured to confer aeriform-permeability characteristics to the material, wherein said openings are absent in locations where said extensible layer and said at least one laminar layer are coupled by said lines of spread adhesive. ### Claim 3 (depends on 1) The material according to claim 1, having a sandwich structure with said extensible layer interposed between two of said laminar layers. ### Claim 4 (depends on 3) The material according to claim 3, wherein said lines of spread adhesive are on both sides of said extensible layer causing it to be anchored with respect to both of said laminar layers. ### Claim 5 (depends on 1) The material according to claim 1, wherein said lines of spread adhesive have a width between 2 and 10 mm. ### Claim 6 (depends on 1) The material according to claim 1, wherein said at least one laminar layer is comprised of a material selected from the group consisting of a non-woven fabric and a film of plastic material. ### Claim 7 (depends on 1) The material according to claim 1, wherein said welds comprise ultrasound welds. ### Claim 8 (depends on 1) The material according to claim 1, wherein the material is arranged in the form of a web which is extensible transversally to a longitudinal extension of the web, and wherein said lines of spread adhesive extend along sides of the web. ### Claim 9 (depends on 3) The material according to claim 3, wherein said sandwich structure comprises: a base laminar layer with a plurality of pairs of said lines of spread adhesive applied thereto, a plurality of said extensible layers anchored to said base laminar layer by means of corresponding pairs of said lines of spread adhesive, and at least one additional laminar layer, wherein said extensible layers are interposed between said base laminar layer and said at least one additional laminar layer. ### Claim 10 (depends on 1) The material according to claim 1, configured for the manufacture of sanitary articles. ### Claim 11 (depends on 9) The material according to claim 9, further comprising an array of openings configured to confer aeriform-permeability characteristics to the material, wherein said openings are absent in locations where said extensible layer and said at least one laminar layer are coupled by said lines of spread adhesive. ### Claim 12 (depends on 1) The material according to claim 1, wherein said lines of spread adhesive have a width between 4 and 6 mm.