EP0134624A2
Expired / Lapsed
EP
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Multiple-connector adhesive tape
Assignee: 3M Co
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Filing: 1984-06-05
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Granted: —
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Expires: 2004-06-05
Abstract
Abstract @ Multiple-connector tape has a flexible backing carrying a pattern of longitudinally electrically conductive stripes, each having an overlying adhesive band, each edge of which precisely follows an edge of the underlying conductive stripe. The adhesive bands may contain silver particles having thicknesses exceeding that of the adhesive between particles so that the terminals of an electrical device can be electrically connected through the particles to the longitudinally conductive stripes when the tape is adhered by its adhesive to the device. Electrical connections can be made in the absence of such particles when the stripes are metal foil having embossings which protrude through the adhesive.
Inventors
- 👤 James G. Minnesota Mining And Berg
- 👤 Robert S. Minnesota Mining And Reylek
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 21:17
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/17; H01B7/18; H01B7/22; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/321; H05K3/323; H01R; H01R12/00; H01R12/50; H01R12/51; H01R12/52; H05K3/36; H05K3/361; H01R4/00; H01R4/04; H05K2201/00; H05K2201/02; H05K2201/0203; H05K2201/0242; H05K2201/0245; H05K2201/03; H05K2201/0332; H05K2201/0364; H05K2201/0367; H05K2201/10; H05K2201/10613; H05K2201/10954; H05K2201/10977; H05K2203/00; H05K2203/05; H05K2203/0502; H05K2203/0522; H05K2203/0562; H05K2203/0571; H05K2203/06; H05K2203/066; H05K2203/11; H05K2203/1189; H05K3/02; H05K3/06; H05K3/061; H05K3/10; H05K3/102; H05K3/303; H05K3/305
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
56 words
l. Multiple-connector tape comprising a flexible nonconductive backing carrying a pattern of longitudinally electrically conductive stripes, each covered by a band of adhesive which affords bonds to glass plate having a shear strength exceeding 20 kPa, wherein the improvement comprises: each edge of each adhesive band precisely follows an edge of the underlying electrically conductive stripe.
Claim 2
Dependent Claim
27 words
Tape as defined in claim 1 wherein each adhesive band comprises a polymer of alkyl acrylate- having an average of 1-12 carbon atoms in its alkyl groups.
Claim 3
Dependent Claim
44 words
Tape as defined in claim 2 wherein said polymer is a copolymer of monomers, up to 50 mol% of which is at least one copolymerizable monomer selected from acrylic acid, methacrylic acid, itaconic acid, maleic acid, maleic anhydride, amides of said acids, and N-vinyl-2-pyrrolidone.
Claim 4
Dependent Claim
28 words
Tape as defined in claim 3 wherein said alkyl acrylate has an average of 4-12 carbon atoms in its alkyl groups, and the copolymer is a pressure-sensitive adhesive.
Claim 5
Dependent Claim
34 words
Tape as defined in claim 3 wherein said alkyl acrylate has an average of 1-3 carbon atoms in its alkyl group, and each adhesive band is nontacky or poorly tacky until it is heated.
Claim 6
Dependent Claim
26 words
Tape as defined in claim 1 wherein each adhesive stripe is filled with electrically-conductive particles comprising from 0.1 to 40 volume percent of each adhesive band.
Claim 7
Dependent Claim
25 words
Tape as defined in claim 6 wherein said particles are metal partiolos, the average minimum thickness of which exceeds the thickness of each adhesive band.
Claim 8
Dependent Claim
13 words
Tape as defined in claim 7 wherein said particles are flattened silver particles.
Claim 9
Dependent Claim
13 words
Tape as defined in claim 1 wherein said electrically conductive stripes are metal.
Claim 10
Dependent Claim
22 words
Tape as defined in claim 9 wherein each of said metal stripes is a foil which is adhesively bonded to the backing.
Claim 11
Dependent Claim
25 words
Tape as defined in claim 7 having a surface layer of unfilled adhesive overlying both the adhesive bands and the backing between said adhesive bands.
Claim 12
Dependent Claim
29 words
Tape as defined in claim 11 wherein the average minimum thickness of the particles approximates the total thickness of each particle-filled adhesive band and the overlying unfilled adhesive layer.
Claim 13
Dependent Claim
17 words
Tape as defined in claim 1 wherein each adhesive band has electrically-conductive particles adhered to its surface.
Claim 14
Dependent Claim
84 words
Method of making a multiple-connector tape comprising the steps of 1) applying a laterally electrically conductive layer onto a flexible nonconductive backing, 2) applying a pattern of adhesive bands onto the electrically conductive layer, which adhesive affords bonds to glass plate having a shear strength exceeding 20 kPa, anJ 3) removing the electrically conductive layer portions between adjacent adhesive bands to provide a pattern of longitudinally electrically conductive stripes, each edge of which is precisely followed by an edge of the overlying adhesive band.
Claim 15
Dependent Claim
25 words
Method as defined in claim 14 wherein the adhesive bands are filled with electrically-conductive particles comprising 0.1 to 40 volume percent of each adhesive band.
Claim 16
Dependent Claim
32 words
Method as defined in claim 15 wherein following step 3) there is a step 4) applying an unfilled adhesive layer overlying both the adhesive bands and the backing between said adhesive bands.
Claim 17
Dependent Claim
31 words
Method as defined in claim 16 wherein the average minimum thickness of said particles exceeds the total thickness of each particle-filled adhesive band and the overlying unfilled adhesive layer between particles.
Claim 18
Dependent Claim
27 words
Method as defined in claim 14 including as an additional step 4) applying electrically conductive particles to the surfaces of the adhesive bands while they are tacky.
Claim 19
Dependent Claim
28 words
Method as defined in claim 18 including as an additional step 5) applying an unfilled adhesive layer over both the particle-containing adhesive bands and the backing between them.
Claim 20
Dependent Claim
34 words
Method as defined in claim 14 wherein the adhesive bands comprise a polymer of at least one of alkyl acrylate and alkyl methacrylate having an average of 1-12 carbon atoms in the alkyl groups.
Claim 21
Dependent Claim
44 words
Method as defined in claim 20 wherein said polymer is a copolymer of monomers, up to 50 mol % which is at: least one copolymerizable monomer selected Erom acrylic acid, methacrylic acid, itaconic acid, maleic acid, maleic anhydride, amides of said acids, and N-vinyl-2-pyrrolidone.
Claim 22
Dependent Claim
28 words
Method as defined in claim 20 wherein said polymer is a pressure-sensitive adhesive polymer of alkyl acrylate having an average of 4-12 carbon atoms in its alkyl groups.
Claim 23
Dependent Claim
17 words
Method as defined in claim 20 wherein said polymer has a weight-averaged Tg of at least -10°C.
Claim 24
Dependent Claim
116 words
Method of making a multiple-connector tape comprising the steps of 1) applying a laterally electrically conductive layer onto a flexible nonconductive backing, 2) coating over the entire conductive layer a viscous monomer composition which is radiation-polymerizable to an adhesive state, 3) selectively exposing the coating to radiation to polymerize bands of the coating to a substantially tack-free adhesive state which affords bonds to glass plate having a shear strength exceeding 20 kPa, 4) removing portions of the coating between the polymerized adhesive bands, and 5) removing the laterally electrically conductive layer between adjacent polymerized bands to provide longitudinally electrically conductive strips, each edge of which is precisely followed by an edge of the overlying adhesive band.
References Cited (Backward Citations)
No citation records indexed.
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