US5283117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminate and self-adhesive tape
Assignee: Dow Chemical Co
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Filing: 1992-01-06
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Granted: 1994-02-01
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Expires: 2012-01-06
Abstract
Abstract There are disclosed a laminate comprising (a) a biaxially oriented film of a styrenic polymer having a high degree of syndiotactic configuration of 10 to 100 (my)m in thickness and (b) a rubber-based self-adhesive layer of 5 to m in thickness and a self-adhesive tape comprising the above-mentioned laminate. The above laminate and self-adhesive tape are excellent in transparency, heat resistance, water resistance, moisture resistance, dispenser and hand cuttability, insulating properties and mechanical properties such as elasticity and nerve and can find a wide range of effective application.
Inventors
- 👤 Yosuke Arai
- 👤 Yuichi Oki
- 👤 Eiji Maemura
- 👤 Keisuke Funaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:55
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/20; C09J7/22; C09J7/24; C09J7/30; C09J7/38; C09J7/381; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/28; Y10T428/2852; Y10T428/2857; Y10T428/2878; Y10T428/2883; Y10T428/2891
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
79 words
An adhesive laminate which consists essentially of (a) a biaxially oriented film of a styrenic polymer having a syndiotacticity in which the proportion of racemic diad is at least 75% optionally blended with from 1 to 70% by weight of a compatible resin or with from 2 to 50% by weight of an incompatible resin, said film having a thickness of 10 to 100 μm and (b) a rubber-based self-adhesive layer having a thickness of 5 to 80 μm.
Claim 2
Dependent Claim
79 words
An adhesive laminate which consists essentially of (a) a biaxially oriented film of a styrenic polymer having a syndiotacticity in which the proportion of racemic diad is at least 75% optionally blended with from 1 to 70% by weight of a compatible resin or with from 2 to 50% by weight of an incompatible resin, said film having a thickness of 10 to 100 μm and (b) a rubber-based self-adhesive layer having a thickness of 5 to 80 μm.
Claim 3
Dependent Claim
43 words
The adhesive laminate of claim 1, wherein said incompatible resin is a polyolefin, a polyester, a polyamide, a polythioether, a polycarbonate, a polyarylate, a polysulfone, a polyether ketone, a polyether sulfone, a polyimide, a halogenated vinylic polymer, an acrylic polymer or polyvinyl alcohol.
Claim 4
Dependent Claim
41 words
The laminate according to claim 1, wherein said (b) rubber-based self-adhesive layer is at least one rubber selected from the group consisting of natural rubber, butadiene-styrene copolymer rubber, polyisobutylene rubber, polyacrylate, polyvinyl ether, polyvinyl isobutyl ether, chlorinated rubber and silicone rubber.
Claim 5
Dependent Claim
43 words
The adhesive laminate according to claim, 1, wherein said composition comprises said styrenic polymer and at least one additive selected from the group consisting of inorganic fine grain compound, antioxidant, antistatic agent, flame retardant and other resin than styrenic polymer having syndiotactic configuration.
Claim 6
Dependent Claim
19 words
The adhesive laminate according to claim 4, wherein said other resin is compatible with styrenic polymer having syndiotactic configuration.
Claim 7
Dependent Claim
27 words
The adhesive laminate according to claim 5, wherein said other resin is selected from the group consisting of atactic styrenic polymer, isotactic styrenic polymer and polyphenylene ether.
Claim 8
Dependent Claim
19 words
The adhesive laminate according to claim 4, wherein said other resin is incompatible with styrenic polymer having syndiotactic configuration.
Claim 9
Dependent Claim
37 words
The adhesive laminate according to claim 1, wherein said (b) rubber-based self-adhesive layer comprises a rubber as the primary ingredient and at least additive selected from the group consisting of tackifier, softener, filler, pigment, antioxidant and stabilizer.
Claim 10
Dependent Claim
37 words
The adhesive laminate according to claim 1, further comprising at best one layer selected from the group consisting of underlay layer, back release layer and release paper in addition to said (a) film and said (b) layer.
Claim 11
Dependent Claim
20 words
The adhesive laminate according to claim 1, wherein said (b) layer is attached to one side of said (a) film.
Claim 12
Dependent Claim
20 words
The adhesive laminate according to claim 1, wherein said (b) layer is attached to both sides of said (a) film.
Claim 13
Dependent Claim
19 words
The adhesive laminate according to claim 1, wherein said biaxially oriented film is a heat set biaxially oriented film.
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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) | 1997-01-31 | 1997-08-02 | 1998-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-31 | 2001-08-02 | 2002-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-31 | 2005-08-02 | 2006-02-01 | $7700.00 | Window Closed / Lapsed |