US4670335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blanking strip for electrolytic processes
Assignee: Beiersdorf AG
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Filing: 1985-11-12
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Granted: 1987-06-02
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Expires: 2005-11-12
Abstract
Abstract A blanking strip, made of paper or film, for the partial blanking of objects to be electroplated, such as printed circuit boards, coated with an adhesive composition based on a plastomer, a hard resin and a plasticizer.
Inventors
- 👤 Klaus Grah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:10
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/22; H05K3/24; H05K3/243; C; C09; C09J; C09J7/00; C09J7/30; C09J7/35; C25; C25D; C25D5/00; C25D5/02; C25D5/022; H05K2203/00; H05K2203/01; H05K2203/0191; H05K3/0073; H05K3/0076; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2852; Y10T428/2878; Y10T428/2891; Y10T428/2896
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
130 words
A non-self adhesive, heat-activatable electroplating blanking strip for partial blanking of objects to be electroplated, comprising: (a) a carrier substrate selected from the group consisting of paper and film, and (b) an adhesive composition coated on said substrates, said composition comprising: (i) 10 to 60% by weight of plastomer component selected from the group consisting of a solvent-soluble cellulose derivative, polyvinyl acetate, copolymers of ethylene and vinyl acetate, polyacrylates and polymethacrylates, said component having softening temperatures ranging from 100° to 140° C., (ii) 70 to 30% by weight of a hard resin component selected from the group consisting of maleate, benzoate, terpene and natural resins such as rosin, (iii) 60 to 10% of a plasticizer component selected from the group consisting of phthalate, adipate, methyl resinates and liquid urea resins.
Claim 2
Dependent Claim
130 words
A non-self adhesive, heat-activatable electroplating blanking strip for partial blanking of objects to be electroplated, comprising: (a) a carrier substrate selected from the group consisting of paper and film, and (b) an adhesive composition coated on said substrates, said composition comprising: (i) 10 to 60% by weight of plastomer component selected from the group consisting of a solvent-soluble cellulose derivative, polyvinyl acetate, copolymers of ethylene and vinyl acetate, polyacrylates and polymethacrylates, said component having softening temperatures ranging from 100° to 140° C., (ii) 70 to 30% by weight of a hard resin component selected from the group consisting of maleate, benzoate, terpene and natural resins such as rosin, (iii) 60 to 10% of a plasticizer component selected from the group consisting of phthalate, adipate, methyl resinates and liquid urea resins.
Claim 3
Dependent Claim
39 words
The blanking strip as claimed in claim 1, comprising a carrier made of PVC film, coated with a composition containing 50% by weight of ethyl-cellulose, 30% by weight of maleate resin and 20% by weight of liquid urea resin.
Claim 4
Dependent Claim
36 words
The blanking strip as claimed in claim 1, comprising a paper carrier, coated with a composition containing 40% by weight of polyvinyl acetate, 40% by weight of rosin and 20% by weight of polymeric phthalic ester.
Claim 5
Dependent Claim
18 words
A blanking strip according to claim 1, wherein the content of plasticizer is 30 to 5% by weight.
Claim 6
Dependent Claim
18 words
A blanking strip according to claim 1, wherin the content of plasticizer is 10 to 20% by weight.
Claim 7
Dependent Claim
23 words
A blank strip according to claim 1, wherein said cellulose derivative is selected from the group consisting of ethyl cellulose and cellulose acetobutyrate.
Claim 8
Dependent Claim
13 words
A blanking strip according to claim 1, wherein said plastomer is polyvinyl acetate.
Claim 9
Dependent Claim
12 words
A blanking strip according to claim 1, wherein the resin is rosin.
Claim 10
Dependent Claim
14 words
A blanking strip according to claim 8, wherein the plasticizer is hydrogenated methyl resinate.
Claim 11
Dependent Claim
29 words
A blanking strip according to claim 1, wherein said hard resin is a maleate resin selected from the group consisting of glycerol ester, and pentaerythritol ester of maleic acid.
Claim 12
Dependent Claim
18 words
A blanking strip according to claim 1, wherein said liquid urea resin is a modified urea formaldehyde resin.
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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) | 1990-06-01 | 1990-12-01 | 1991-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-01 | 1994-12-01 | 1995-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-01 | 1998-12-01 | 1999-06-02 | $7700.00 | Window Closed / Lapsed |