US4248746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat fusible poly(vinyl acetate) dispersions
Assignee: Hercules LLC
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Filing: 1979-06-22
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Granted: 1981-02-03
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Expires: 1999-06-22
Abstract
Abstract It has been discovered that pastes of particulate, thermoplastic, poly(vinyl acetate) type polymers dispersed in a soft resinous phase can be prepared which heat-set by fusion of the thermoplastic binder. When pigmented or otherwise colored, these formulations have utility as printing inks. When uncolored, they can be used as clear overprint coatings. In addition, these fusible pastes have utility as specialty coatings in adhesives and can be fabricated into self-supporting shapes.
Inventors
- 👤 Richard W. Greiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:54
CPC Classifications
C; C09; C09D; C09D131/00; C09D131/02; C09D131/04; C09D11/00; C09D11/02; C09D11/10; C09D11/106; C09J; C09J131/00; C09J131/02; C09J131/04; C08; C08L; C08L2205/00; C08L2205/14; C08L2205/18; C08L2666/00; C08L2666/02; C08L93/00; C08L93/04; Y; Y10; Y10S; Y10S524/00; Y10S524/904
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
94 words
A composition of matter consisting essentially of (1) discrete solid particles of a thermoplastic polymeric material, said polymeric material having been prepared from at least 60% of vinyl acetae, said thermoplastic polymeric material having a particle diameter between about 0.05 micron to about 50 microns, said thermoplastic polymeric particles being dispersed in (2) a tackifying, cohesion-increasing material whose softening point is at or below room temperature, said polymeric material and said cohesion-increasing material being present in said composition in a ratio of polymeric material to cohesion-increasing material of between about 1:6 to about 1:1.
Claim 2
Dependent Claim
94 words
A composition of matter consisting essentially of (1) discrete solid particles of a thermoplastic polymeric material, said polymeric material having been prepared from at least 60% of vinyl acetae, said thermoplastic polymeric material having a particle diameter between about 0.05 micron to about 50 microns, said thermoplastic polymeric particles being dispersed in (2) a tackifying, cohesion-increasing material whose softening point is at or below room temperature, said polymeric material and said cohesion-increasing material being present in said composition in a ratio of polymeric material to cohesion-increasing material of between about 1:6 to about 1:1.
Claim 3
Dependent Claim
12 words
The composition of claim 1 wherein the thermoplastic polymer is poly(vinyl acetate).
Claim 4
Dependent Claim
26 words
The composition of claim 1 wherein the tackifying, cohesion-increasing material comprises a resin or mixture of resins whose softening point is at or below room temperature.
Claim 5
Dependent Claim
42 words
The composition of claim 1 wherein the tackifying, cohesion-increasing material comprises a mixture of at least one resin and at least one diluent oil as a softening point lowering agent, the softening point of such mixture being at or below room temperature.
Claim 6
Dependent Claim
19 words
The composition of claim 4 wherein the diluent oil has a solubility parameter between about 7.0 to about 8.5.
Claim 7
Dependent Claim
23 words
The composition of claim 1 wherein the tackifying, cohesion-increasing material is selected from a hydrocarbon resin, an ester of rosin and mixtures thereof.
Claim 8
Dependent Claim
14 words
The composition of claim 6 wherein the hydrocarbon resin is an aromatic hydrocarbon resin.
Claim 9
Dependent Claim
38 words
The composition of claim 6 wherein the ester of rosin is selected from a methyl ester of rosin, hydrogenated, methyl ester of rosin, methyl ester of disproportionated rosin and esters and modified esters of rosin with polybasic alcohols.
Claim 10
Dependent Claim
9 words
The composition of claim 1 further comprising coloring material.
Claim 11
Dependent Claim
19 words
The composition of claim 1 further comprising at least one hardening agent selected from drying oils and unsaturated alkyds.
Claim 12
Dependent Claim
22 words
The composition of claim 10 wherein the hardening agent is selected from linseed oil, bodies linseed oil, and long oil isophthalic alkyd.
Claim 13
Dependent Claim
96 words
A printing ink vehicle consisting essentially of (1) discrete solid particles of a thermoplastic polymeric material consisting of poly(vinyl acetate) or a copolymer containing at least 60 mole percent vinyl acetate, said thermoplastic polymeric material having a particle diameter between about 0.5 micron and about 50 microns, said thermoplastic polymeric particles being dispersed in (2) a tackifying cohesion-increasing material whose softening point is at or below room temperature, said polymeric material and said cohesion-increasing material being present in said composition in a ratio of polymeric material to cohesion-increasing material of between about 1:6 to about 1:1.
Claim 14
Dependent Claim
96 words
A printing ink vehicle consisting essentially of (1) discrete solid particles of a thermoplastic polymeric material consisting of poly(vinyl acetate) or a copolymer containing at least 60 mole percent vinyl acetate, said thermoplastic polymeric material having a particle diameter between about 0.5 micron and about 50 microns, said thermoplastic polymeric particles being dispersed in (2) a tackifying cohesion-increasing material whose softening point is at or below room temperature, said polymeric material and said cohesion-increasing material being present in said composition in a ratio of polymeric material to cohesion-increasing material of between about 1:6 to about 1:1.
Claim 15
Dependent Claim
95 words
An adhesive composition consisting essentially of (1) discrete solid particles of a thermoplastic polymeric material consisting of poly(vinyl acetate) or a copolymer containing at least 60 mole percent vinyl acetate, said thermoplastic polymeric material having a particle diameter between about 0.05 micron and about 50 microns, said thermoplastic polymeric particles being dispersed in (2) a tackifying cohesion-increasing material whose softening point is at or below room temperature, said polymeric material and said cohesion-increasing material being present in said composition in a ratio of polymeric material to cohesion-increasing material of between about 1:6 to about 1:1.
Claim 16
Dependent Claim
95 words
An adhesive composition consisting essentially of (1) discrete solid particles of a thermoplastic polymeric material consisting of poly(vinyl acetate) or a copolymer containing at least 60 mole percent vinyl acetate, said thermoplastic polymeric material having a particle diameter between about 0.05 micron and about 50 microns, said thermoplastic polymeric particles being dispersed in (2) a tackifying cohesion-increasing material whose softening point is at or below room temperature, said polymeric material and said cohesion-increasing material being present in said composition in a ratio of polymeric material to cohesion-increasing material of between about 1:6 to about 1:1.
Claim 17
Dependent Claim
95 words
A molding material consisting essentially of (1) discrete solid particles of a thermoplastic polymeric material consisting of poly(vinyl acetate) or a copolymer containing at least 60 mole percent vinyl acetate, said thermoplastic polymeric material having a particle diameter between about 0.5 micron and about 50 microns, said thermoplastic polymeric particles being dispersed in (2) a tackifying cohesion-increasing material whose softening point is at or below room temperature, said polymeric material and said cohesion-increasing material being present in said composition in a ratio of polymeric material to cohesion-increasing material of between about 1:6 to about 1:1.
Claim 18
Dependent Claim
95 words
A molding material consisting essentially of (1) discrete solid particles of a thermoplastic polymeric material consisting of poly(vinyl acetate) or a copolymer containing at least 60 mole percent vinyl acetate, said thermoplastic polymeric material having a particle diameter between about 0.5 micron and about 50 microns, said thermoplastic polymeric particles being dispersed in (2) a tackifying cohesion-increasing material whose softening point is at or below room temperature, said polymeric material and said cohesion-increasing material being present in said composition in a ratio of polymeric material to cohesion-increasing material of between about 1:6 to about 1:1.
Claim 19
Dependent Claim
126 words
A process comprising selectively coating onto the surface of a substrate a composition consisting essentially of (1) discrete solid particles of a thermoplastic polymeric material consisting of poly(vinyl acetate) or a copolymer containing at least 60 mole percent vinyl acetate, said thermoplastic polymeric material having a particle diameter between about 0.05 micron and about 50 microns, said thermoplastic polymeric particles being dispersed in (2) a tackifying cohesion-increasing material whose softening point is at or below room temperature, said polymeric material and said cohesion-increasing material being present in said composition in a ratio of polymeric material to cohesion-increasing material of between about 1:6 to about 1:1; and heating the coated surface of the substrate for a length of time at a temperature sufficient to fuse the coating.
Claim 20
Dependent Claim
126 words
A process comprising selectively coating onto the surface of a substrate a composition consisting essentially of (1) discrete solid particles of a thermoplastic polymeric material consisting of poly(vinyl acetate) or a copolymer containing at least 60 mole percent vinyl acetate, said thermoplastic polymeric material having a particle diameter between about 0.05 micron and about 50 microns, said thermoplastic polymeric particles being dispersed in (2) a tackifying cohesion-increasing material whose softening point is at or below room temperature, said polymeric material and said cohesion-increasing material being present in said composition in a ratio of polymeric material to cohesion-increasing material of between about 1:6 to about 1:1; and heating the coated surface of the substrate for a length of time at a temperature sufficient to fuse the coating.
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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) | 1984-02-03 | 1984-08-04 | 1985-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-03 | 1988-08-04 | 1989-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-03 | 1992-08-04 | 1993-02-03 | $7700.00 | Window Closed / Lapsed |