EP0298448A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Radiation-curable adhesive tape
Assignee: Furukawa Electric Co Ltd
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Filing: 1988-07-06
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Granted: —
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Expires: 2008-07-06
Abstract
Abstract There is provided a radiation-curable adhesive tape comprising a radiation-curable adhesive layer which is formed on a radiation transmitting-substrate. The radiation-curable adhesive layer is composed of an acrylic adhesive and radiation-curable compound having carbon-carbon double bonds. The radiation-curable tape can be used preferably in processing steps for the production of semiconductor wafer, ceramics and glass employing a direct picking-up system.
Inventors
- 👤 Shinichi Ishiwata
- 👤 Michio 3-410 Rune-Kamihoshikawa Ueyama
- 👤 Hiroyuki Nakae
- 👤 Yoshiyuki Funayama
- 👤 Kazushige Iwamoto
- 👤 Isamu Noguchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 21:37
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/20; C09J7/29; H; H10; H10P; H10P72/00; H10P72/70; H10P72/74; H10P72/7402; C09J4/00; C09J4/06; C09J7/30; C09J7/38; C09J7/381; C09J7/385; H10W; H10W72/00; H10W72/701; C09J2203/00; C09J2203/326; C09J2301/00; C09J2301/10; C09J2301/16; C09J2301/162; H10P72/7416; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2809; Y10T428/2848; Y10T428/2852; Y10T428/2878; Y10T428/2896
Claims Analysis
Total Claims: 47
Claim 1
Independent Claim
56 words
A radiation-curable adhesive tape which comprises a radiation-transmitting substrate, and a radiation-curable adhesive layer formed thereon containing 100 parts by weight of an acrylic adhesive and 5 to 500 parts by weight of at least one compound selected from the group consisting of cyanurate compounds and isocyanurate compounds having carbon-carbon double bonds other than triallyl cyanurate.
Claim 2
Dependent Claim
56 words
A radiation-curable adhesive tape which comprises a radiation-transmitting substrate, and a radiation-curable adhesive layer formed thereon containing 100 parts by weight of an acrylic adhesive and 5 to 500 parts by weight of at least one compound selected from the group consisting of cyanurate compounds and isocyanurate compounds having carbon-carbon double bonds other than triallyl cyanurate.
Claim 3
Dependent Claim
39 words
The radiation-curable adhesive tape as claimed in claim 1, wherein the cyanurate or isocyanurate compounds contains, between the carbon-carbon double bond and the triazine ring or isotriazine ring, a linking group including a connecting group that can rotate freely.
Claim 4
Dependent Claim
39 words
The radiation-curable adhesive tape as claimed in claim 1, wherein the cyanurate or isocyanurate compounds contains, between the carbon-carbon double bond and the triazine ring or isotriazine ring, a linking group including -O-, -OCO-, -COO-, -NHCO- or -NHCOO- bond.
Claim 5
Dependent Claim
26 words
The radiation-curable adhesive tape as claimed in claim 1, wherein the cyanurate or isocyanurate compound is selected from those containing an acryloxy group or methacryloxy group.
Claim 6
Dependent Claim
24 words
The radiation-curable adhesive tape as claimed in claim 1, wherein the radiation-transmitting substrate is a multilayer film composed of at least two different layers.
Claim 7
Dependent Claim
35 words
The radiation-curable adhesive tape as claimed in claim 1, wherein the radiation-transmitting substrate is a multilayer film made of at least three radiation-transmitting resin layers with a soft poly(vinyl chloride) used as the intermediate layer.
Claim 8
Dependent Claim
33 words
The radiation-curable adhesive tape as claimed in claim 1, wherein the radiation-transmitting substrate is a multilayer film made of at least three radiation-transmitting resin layers with an elastomer used as the intermediate layer.
Claim 9
Dependent Claim
27 words
The radiation-curable adhesive tape as claimed in claim 1, wherein the multilayer film is composed of different resin layers, at least one of the layers being polyethylene.
Claim 10
Dependent Claim
30 words
The radiation-curable adhesive tape as claimed in claim 1, wherein the multilayer film is composed of different resin layers, at least one of the layers being high-density polyethylene or polypropylene.
Claim 11
Dependent Claim
23 words
The radiation-curable adhesive tape as claimed in claim 1, wherein Vicat softening point of the high-density polyethylene or polypropylene is 120°C or over.
Claim 12
Dependent Claim
34 words
The radiation-curable adhesive tape as claimed in claim 1, wherein the radiation-curable adhesive layer further comprises 0.01 to 20 parts by weight of silicone acrylate compound for 100 parts by weight of acrylic adhesive.
Claim 13
Dependent Claim
34 words
The radiation-curable adhesive tape as claimed in claim 1, wherein the radiation-curable adhesive layer comprises 60 - 150 parts by weight of cyanurate or isocyanurate compounds for 100 parts by weight of acrylic adhesive.
Claim 14
Dependent Claim
34 words
The radiation-curable adhesive tape as claimed in claim 1, wherein the radiation-curable adhesive layer further comprises 0.5 to 4 parts by weight of silicone acrylate compound for 100 parts by weight of acrylic adhesive.
Claim 15
Dependent Claim
19 words
The radiation-curable adhesive tape as claimed in claim 1, which comprises a separator film on the radiation-curable adhesive layer.
Claim 16
Dependent Claim
15 words
The radiation-curable adhesive tape as claimed in claim 1, wherein the radiation is ultraviolet ray.
Claim 17
Dependent Claim
67 words
A radiation-curable adhesive tape which comprises a radiation-transmitting substrate, and a radiation-curable adhesive layer formed thereon and containing 100 parts by weight of an acrylic adhesive, 5 to 500 parts by weight of at least one compound selected from the group consisting of cyanurate compounds and isocyanurate compounds having carbon-carbon double bonds and 0.5 - 100 parts by weight of urethane acrylate compounds having carbon-carbon double bonds.
Claim 18
Dependent Claim
67 words
A radiation-curable adhesive tape which comprises a radiation-transmitting substrate, and a radiation-curable adhesive layer formed thereon and containing 100 parts by weight of an acrylic adhesive, 5 to 500 parts by weight of at least one compound selected from the group consisting of cyanurate compounds and isocyanurate compounds having carbon-carbon double bonds and 0.5 - 100 parts by weight of urethane acrylate compounds having carbon-carbon double bonds.
Claim 19
Dependent Claim
24 words
The radiation-curable adhesive tape as claimed in claim 16, wherein the radiation-transmitting substrate is a multilayer film composed of at least two different layers.
Claim 20
Dependent Claim
35 words
The radiation-curable adhesive tape as claimed in claim 16, wherein the radiation-transmitting substrate is a multilayer film made of at least three radiation-transmitting resin layers with a soft poly(vinyl chloride) used as the intermediate layer.
Claim 21
Dependent Claim
33 words
The radiation-curable adhesive tape as claimed in claim 16, wherein the radiation-transmitting substrate is a multilayer film made of at least three radiation-transmitting resin layers with an elastomer used as the intermediate layer.
Claim 22
Dependent Claim
34 words
The radiation-curable adhesive tape as claimed in claim 16, wherein the radiation-curable adhesive layer further comprises 0.01 to 20 parts by weight of silicone acrylate compound for 100 parts by weight of acrylic adhesive.
Claim 23
Dependent Claim
34 words
The radiation-curable adhesive tape as claimed in claim 16, wherein the radiation-curable adhesive layer comprises 60 - 150 parts by weight of cyanurate or isocyanurate compounds for 100 parts by weight of acrylic adhesive.
Claim 24
Dependent Claim
33 words
The radiation-curable adhesive tape as claimed in claim 16, wherein the radiation-curable adhesive layer comprises 10 to 100 parts by weight of urethane acrylate compound for 100 parts by weight of acrylic adhesive.
Claim 25
Dependent Claim
37 words
The radiation-curable adhesive tape as claimed in claim 16, wherein the urethane acrylate compounds after curing by irradiation have the tensile strength of 100 kg/cm² or below, and the tensile elongation at break of at least 50%.
Claim 26
Dependent Claim
19 words
The radiation-curable adhesive tape as claimed in claim 16, which comprises a separator film on the radiation-curable adhesive layer.
Claim 27
Dependent Claim
15 words
The radiation-curable adhesive tape as claimed in claim 16, wherein the radiation is ultraviolet ray.
Claim 28
Dependent Claim
55 words
A radiation-curable adhesive tape which comprises a radiation-curable adhesive layer which is formed on a radiation transmitting substrate composed of a multilayer film having at least two different layers, and which contains 100 parts by weight of an acrylic adhesive and 5 to 500 parts by weight of a compound having carbon- carbon double bonds.
Claim 29
Dependent Claim
55 words
A radiation-curable adhesive tape which comprises a radiation-curable adhesive layer which is formed on a radiation transmitting substrate composed of a multilayer film having at least two different layers, and which contains 100 parts by weight of an acrylic adhesive and 5 to 500 parts by weight of a compound having carbon- carbon double bonds.
Claim 30
Dependent Claim
27 words
The radiation-curable adhesive tape as claimed in claim 26, wherein the multilayer film is composed of different resin layers, at least one of the layers being polyethylene.
Claim 31
Dependent Claim
30 words
The radiation-curable adhesive tape as claimed in claim 26, wherein the multilayer film is composed of different resin layers, at least one of the layers being high-density polyethylene or polypropylene.
Claim 32
Dependent Claim
23 words
The radiation-curable adhesive tape as claimed in claim 26, wherein Vicat softening point of the high-density polyethylene or polypropylene is 120°C or over.
Claim 33
Dependent Claim
30 words
The radiation-curable adhesive tape as claimed in claim 26, wherein the compound having carbon-carbon double bonds is selected from cyanurate or isocyanurate compounds and polyacrylates or polymethacrylates of aliphatic polyols.
Claim 34
Dependent Claim
36 words
The radiation-curable adhesive tape as claimed in claim 26, wherein the radiation-transmitting substrate is a multilayer film made of at least three radiation-transmitting resin layers with a soft poly(vinyl chloride) resin used as the intermediate layer.
Claim 35
Dependent Claim
33 words
The radiation-curable adhesive tape as claimed in claim 26, wherein the radiation-transmitting substrate is a multilayer film made of at least three radiation-transmitting resin layers with an elastomer used as the intermediate layer.
Claim 36
Dependent Claim
34 words
The radiation-curable adhesive tape as claimed in claim 26, wherein the radiation-curable adhesive layer further comprises 0.01 to 20 parts by weight of silicone acrylate compound for 100 parts by weight of acrylic adhesive.
Claim 37
Dependent Claim
34 words
The radiation-curable adhesive tape as claimed in claim 26, wherein the radiation-curable adhesive layer comprises 60 - 150 parts by weight of cyanurate or isocyanurate compounds for 100 parts by weight of acrylic adhesive.
Claim 38
Dependent Claim
34 words
The radiation-curable adhesive tape as claimed in claim 26, wherein the radiation-curable adhesive layer further comprises 0.5 to 4 parts by weight of silicone acrylate compound for 100 parts by weight of acrylic adhesive.
Claim 39
Dependent Claim
19 words
The radiation-curable adhesive tape as claimed in claim 26, which comprises a separator film on the radiation-curable adhesive layer.
Claim 40
Dependent Claim
15 words
The radiation-curable adhesive tape as claimed in claim 26, wherein the radiation is ultraviolet ray.
Claim 41
Dependent Claim
53 words
The radiation-curable adhesive tape which comprises a radiation-curable adhesive layer that is formed on a radiation-transmitting substrate that contains 100 parts by weight of an acrylic adhesive, 5 to 500 parts by weight of a compound having a carbon-carbon double bond, and 0.01 to 20 parts by weight of a silicone acrylate compound.
Claim 42
Dependent Claim
53 words
The radiation-curable adhesive tape which comprises a radiation-curable adhesive layer that is formed on a radiation-transmitting substrate that contains 100 parts by weight of an acrylic adhesive, 5 to 500 parts by weight of a compound having a carbon-carbon double bond, and 0.01 to 20 parts by weight of a silicone acrylate compound.
Claim 43
Dependent Claim
30 words
The radiation-curable adhesive tape as claimed in claim 38, wherein the compound having carbon-carbon double bonds is selected from cyanurate or isocyanurate compounds and polyacrylates or polymethacrylates of aliphatic polyols.
Claim 44
Dependent Claim
33 words
The radiation-curable adhesive tape as claimed in claim 38, the radiation-curable adhesive layer comprises 60 - 150 parts by weight of cyanurate or isocyanurate compound for 100 parts by weight of acrylic adhesive.
Claim 45
Dependent Claim
34 words
The radiation-curable adhesive tape as claimed in claim 38, wherein the radiation-curable adhesive layer further comprises 0.5 to 4 parts by weight of silicone acrylate compound for 100 parts by weight of acrylic adhesive.
Claim 46
Dependent Claim
19 words
The radiation-curable adhesive tape as claimed in claim 38, which comprises a separator film on the radiation-curable adhesive layer.
Claim 47
Dependent Claim
15 words
The radiation-curable adhesive tape as claimed in claim 38, wherein the radiation is ultraviolet ray.
References Cited (Backward Citations)
No citation records indexed.
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