US4587156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Directly printable pressure-sensitive adhesive tape
Assignee: 3M Co
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Filing: 1985-01-22
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Granted: 1986-05-06
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Expires: 2005-01-22
Abstract
Abstract A directly printable backsize coating composition for a pressure-sensitive adhesive tape comprising a layer of a low adhesion backsize compound, an ink anchoring resin, and a primer resin wherein the surface free energy of the ink anchoring resin and the primer are within about 10 percent of the surface free energy of the low adhesion backsize compound.
Inventors
- 👤 Maan-shii S. Wu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:30
CPC Classifications
C; C09; C09J; C09J133/00; C09J133/04; C09J133/06; B; B05; B05D; B05D5/00; B05D5/04; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/5254; C09J7/00; C09J7/20; C09J7/201; C09J7/22; C09J2301/00; C09J2301/30; C09J2301/302; C09J2401/00; C09J2401/005; C09J2423/00; C09J2423/04; C09J2423/043; C09J2423/10; C09J2423/106; C09J2427/00; C09J2427/003; C09J2427/005; C09J2427/006; C09J2433/00; C09J2433/005; C09J2467/00; C09J2467/003; C09J2467/005; C09J2467/006; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24901; Y10T428/28; Y10T428/2839; Y10T428/2848; Y10T428/2852; Y10T428/2878; Y10T428/2891; Y10T428/31504; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31909; Y10T428/31913
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
236 words
A pressure-sensitive tape comprising a non-fibrous backing, a layer of normally tacky and pressure-sensitive adhesive coated over and firmly adherently bonded to the face side of said backing, and a low adhesion backsize composition coated over and firmly adherently bonded to the backside of said backing, said low adhesion backsize composition being a mixture of at least one low adhesion backsize compound, wherein said low adhesive backsize compound comprises at least about 10 percent by weight of said composition and is selected from the group consisting of (A) a higher-alkyl acrylate or higher-alkyl methacrylate ester copolymerized with at least one ethylenically unsaturated monomer, and (B) a terpolymer of (1) an ethylenically unsaturated monomer containing a fluoroalkyl group of at least 6 carbon atoms, (2) an ethylenically unsaturated monomer containing a free carboxylic acid group, and (3) an ethylenically unsaturated monomer containing a functional group which forms a conjugated system with its ethylenically unsaturated bond and is hydrolyzable to a free carboxylic group, an ink anchoring resin, comprising a cellulose ester having at least about 0.5 percent by weight of hydroxyl groups and comprising from about 5 to about 50 percent by weight of said composition, and a primer selected from the group consisting of chlorinated polyolefin and copolyester resin, wherein said ink anchoring resin and said primer have free surface energies within about 10 percent of the free surface energy of said low adhesion backsize compound.
Claim 2
Dependent Claim
236 words
A pressure-sensitive tape comprising a non-fibrous backing, a layer of normally tacky and pressure-sensitive adhesive coated over and firmly adherently bonded to the face side of said backing, and a low adhesion backsize composition coated over and firmly adherently bonded to the backside of said backing, said low adhesion backsize composition being a mixture of at least one low adhesion backsize compound, wherein said low adhesive backsize compound comprises at least about 10 percent by weight of said composition and is selected from the group consisting of (A) a higher-alkyl acrylate or higher-alkyl methacrylate ester copolymerized with at least one ethylenically unsaturated monomer, and (B) a terpolymer of (1) an ethylenically unsaturated monomer containing a fluoroalkyl group of at least 6 carbon atoms, (2) an ethylenically unsaturated monomer containing a free carboxylic acid group, and (3) an ethylenically unsaturated monomer containing a functional group which forms a conjugated system with its ethylenically unsaturated bond and is hydrolyzable to a free carboxylic group, an ink anchoring resin, comprising a cellulose ester having at least about 0.5 percent by weight of hydroxyl groups and comprising from about 5 to about 50 percent by weight of said composition, and a primer selected from the group consisting of chlorinated polyolefin and copolyester resin, wherein said ink anchoring resin and said primer have free surface energies within about 10 percent of the free surface energy of said low adhesion backsize compound.
Claim 3
Dependent Claim
19 words
The tape of claim 1 further containing flexographic ink indicia firmly adhered to the surface of said backsize coating.
Claim 4
Dependent Claim
27 words
The tape of claim 1 wherein said cellulose ester is selected from the group consisting of cellulose acetate, cellulose acetate propionate, cellulose acetate butyrate, and cellulose nitrate.
Claim 5
Dependent Claim
36 words
The tape of claim 1 wherein said backing is polypropylene, said primer is a chlorinated polyolefin and is present in said backsize coating at a concentration of from about 30 to about 60 percent by weight.
Claim 6
Dependent Claim
37 words
The tape of claim 1 wherein said backing is polyethylene terephthalate, said primer is a copolyester resin, and is present in said backsize coating at a concentration of from about 15 to about 50 percent by weight.
Claim 7
Dependent Claim
38 words
The tape of claim 1 wherein said backing is unplasticized polyvinyl chloride, said primer is a chlorinated polyolefin and is present in said backsize coating at a concentration of from about 30 to about 60 percent by weight.
Claim 8
Dependent Claim
216 words
A composition capable of providing a backsize coating on the backing of a pressure-sensitive adhesive tape comprising a mixture of at least one low adhesion backsize compound, wherein said low adhesion backsize compound comprises at least about 10 percent by weight of said composition and is selected from the group consisting of (A) a higher-alkyl acrylate or higher-alkyl methacrylate ester copolymerized with at least one ethylenically unsaturated monomer, and (B) a terpolymer of (1) an ethylenically unsaturated monomer containing a fluoroalkyl group of at least 6 carbon atoms, (2) an ethylenically unsaturated monomer containing a free carboxylic acid group, and (3) an ethylenically unsaturated monomer containing a functional group which forms a conjugated system with its ethylenically unsaturated bond and is hydrolyzable to a free carboxylic group, an ink anchoring resin, comprising a cellulose ester having at least about 0.5 percent by weight of hydroxyl groups and comprising from about 5 to about 50 percent by weight of said composition, and a primer selected from the group consisting of chlorinated polyolefin and copolyester resin, said mixture being capable of providing a directly printable surface on said backing, wherein the surface free energy of said ink anchoring resin and said primer are within about 10 percent of the surface free energy of said low adhesion backsize compound.
Claim 9
Dependent Claim
216 words
A composition capable of providing a backsize coating on the backing of a pressure-sensitive adhesive tape comprising a mixture of at least one low adhesion backsize compound, wherein said low adhesion backsize compound comprises at least about 10 percent by weight of said composition and is selected from the group consisting of (A) a higher-alkyl acrylate or higher-alkyl methacrylate ester copolymerized with at least one ethylenically unsaturated monomer, and (B) a terpolymer of (1) an ethylenically unsaturated monomer containing a fluoroalkyl group of at least 6 carbon atoms, (2) an ethylenically unsaturated monomer containing a free carboxylic acid group, and (3) an ethylenically unsaturated monomer containing a functional group which forms a conjugated system with its ethylenically unsaturated bond and is hydrolyzable to a free carboxylic group, an ink anchoring resin, comprising a cellulose ester having at least about 0.5 percent by weight of hydroxyl groups and comprising from about 5 to about 50 percent by weight of said composition, and a primer selected from the group consisting of chlorinated polyolefin and copolyester resin, said mixture being capable of providing a directly printable surface on said backing, wherein the surface free energy of said ink anchoring resin and said primer are within about 10 percent of the surface free energy of said low adhesion backsize compound.
Claim 10
Dependent Claim
27 words
The composition of claim 1 wherein said cellulose ester is selected from the group consisting of cellulose acetate, cellulose acetate propionate, cellulose acetate butyrate, and cellulose nitrate.
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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) | 1989-05-05 | 1989-11-04 | 1990-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-05 | 1993-11-04 | 1994-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-05 | 1997-11-04 | 1998-05-06 | $7700.00 | Window Closed / Lapsed |