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US5149586A
Expired / Lapsed
US
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Radiation-curable adhesive tape
Assignee: Furukawa Electric Co Ltd
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Filing: 1990-12-21
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Granted: 1992-09-22
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Expires: 2010-12-21
Abstract
Abstract There is 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 Ueyama
- 👤 Hiroyuki Nakae
- 👤 Yoshiyuki Funayama
- 👤 Kazushige Iwamoto
- 👤 Isamu Noguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:41
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/70; H10P72/74; H10P72/7402; C; C09; C09J; C09J4/00; C09J4/06; C09J7/00; C09J7/20; C09J7/29; C09J7/30; C09J7/38; C09J7/381; C09J7/385; 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; Y10T428/2891; Y10T428/2896
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
105 words
A radiation-curable adhesive tap which comprises a multi-layer radiation-transmitting substrate comprising at least three radiation-transmitting resin layers with a soft poly(vinyl chloride) used as an intermediate layer; the substrate having a radiation-curable adhesive layer formed thereon which comprises: 100parts by weight of an acrylic adhesive; 5 to 500 parts by weight of at least one isocyanurate compound selected from the group consisting of: tris (acryloxyethyl) isocyanurate, tris (methacryloxyethyl) isocyanurate, tris-4-(acryloxy-n-butylisocyanurate, tris (1,3-diacryloxy-2-propyloxycarbonylamino-n-hexyl) isocyanurate, tris (1-acryloxy-3-methacryloxy-2-propyloxycarbonylamino-n-hexyl) isocyanurate, and bis (2-acryloxyethyl-2-(5-acryloxy)hexyloxyethyl isocyanurate; and 0.5 to 100 parts by weight of a urethane acrylate compound having carbon-carbon double bonds, per 100 parts by weight of the acrylic adhesive.
Claim 2
Dependent Claim
105 words
A radiation-curable adhesive tap which comprises a multi-layer radiation-transmitting substrate comprising at least three radiation-transmitting resin layers with a soft poly(vinyl chloride) used as an intermediate layer; the substrate having a radiation-curable adhesive layer formed thereon which comprises: 100parts by weight of an acrylic adhesive; 5 to 500 parts by weight of at least one isocyanurate compound selected from the group consisting of: tris (acryloxyethyl) isocyanurate, tris (methacryloxyethyl) isocyanurate, tris-4-(acryloxy-n-butylisocyanurate, tris (1,3-diacryloxy-2-propyloxycarbonylamino-n-hexyl) isocyanurate, tris (1-acryloxy-3-methacryloxy-2-propyloxycarbonylamino-n-hexyl) isocyanurate, and bis (2-acryloxyethyl-2-(5-acryloxy)hexyloxyethyl isocyanurate; and 0.5 to 100 parts by weight of a urethane acrylate compound having carbon-carbon double bonds, per 100 parts by weight of the acrylic adhesive.
Claim 3
Dependent Claim
33 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 the acrylic adhesive.
Claim 4
Dependent Claim
35 words
The radiation-curable adhesive tape as claimed in claim 1, wherein the radiation-curable adhesive layer comprises 10 to 100 parts by weight of the urethane acrylate compound for 100 parts by weight of the acrylic adhesive.
Claim 5
Dependent Claim
38 words
The radiation-curable adhesive tape as claimed in claim 1, wherein the urethane acrylate compound after curing by irradiation has a tensile strength of 100 kg/cm 2 or below, and a tensile elongation at breaking of at least 50%.
Claim 6
Dependent Claim
106 words
A radiation-curable adhesive tape which comprises a radiation-transmitting substrate having a radiation-curable adhesive layer formed thereon which comprises: 100 parts by weight of an acrylic adhesive; 5 to 500 parts by weight of at least one isocyanurate compound selected from the group consisting of: tris (acryloxyethyl) isocyanurate, tris (methacryloxyethyl) isocyanurate, tris-4-acryloxy-n-butylisocyanurate, tris (1,3-diacryloxy-2-propyloxycarbonylamino-n-hexyl) isocyanurate, tris (1-acryloxy-3-methacryloxy-2-propyloxycarbonylamino-n-hexyl) isocyanurate, and bis (2-acryloxyethyl)-2-(5-acryloxy)hexyloxyethyl isocyanurate; 0.5 to 100 parts by weight of a urethane acrylate compound having carbon-carbon double bonds, per 100 parts by weight of the acrylic adhesive; and 0.01 to 20 parts by weight of a silicone acrylate compound, per 100 parts by weight of the acrylic adhesive.
Claim 7
Dependent Claim
106 words
A radiation-curable adhesive tape which comprises a radiation-transmitting substrate having a radiation-curable adhesive layer formed thereon which comprises: 100 parts by weight of an acrylic adhesive; 5 to 500 parts by weight of at least one isocyanurate compound selected from the group consisting of: tris (acryloxyethyl) isocyanurate, tris (methacryloxyethyl) isocyanurate, tris-4-acryloxy-n-butylisocyanurate, tris (1,3-diacryloxy-2-propyloxycarbonylamino-n-hexyl) isocyanurate, tris (1-acryloxy-3-methacryloxy-2-propyloxycarbonylamino-n-hexyl) isocyanurate, and bis (2-acryloxyethyl)-2-(5-acryloxy)hexyloxyethyl isocyanurate; 0.5 to 100 parts by weight of a urethane acrylate compound having carbon-carbon double bonds, per 100 parts by weight of the acrylic adhesive; and 0.01 to 20 parts by weight of a silicone acrylate compound, per 100 parts by weight of the acrylic adhesive.
Claim 8
Dependent Claim
24 words
The radiation-curable adhesive tape as claimed in claim 5, wherein the radiation-transmitting substrate is a multi-layer film composed of at least two different layers.
Claim 9
Dependent Claim
33 words
The radiation-curable adhesive tape as claimed in claim 5, wherein the radiation-transmitting substrate is a multi-layer film made of at least three radiation-transmitting resin layers with an elastomer used as an intermediate layer.
Claim 10
Dependent Claim
33 words
The radiation-curable adhesive tape as claimed in claim 5, wherein the radiation-curable adhesive layer comprises 60-150 parts by weight of cyanurate or isocyanurate compounds for 100 parts by weight of the acrylic adhesive.
Claim 11
Dependent Claim
35 words
The radiation-curable adhesive tape as claimed in claim 5, wherein the radiation-curable adhesive layer comprises 10 to 100 parts by weight of the urethane acrylate compound for 100 parts by weight of the acrylic adhesive.
Claim 12
Dependent Claim
38 words
The radiation-curable adhesive tape as claimed in claim 5, wherein the urethane acrylate compound after curing by irradiation has a tensile strength of 100 kg/cm 2 or below, and a tensile elongation at breaking of at least 50%.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-09-22 | 1996-03-23 | 1996-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-22 | 2000-03-23 | 2000-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-22 | 2004-03-23 | 2004-09-22 | $7700.00 | Window Closed / Lapsed |