Patent US4162997A successfully refreshed from Google Patents.
US4162997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-fusible pastes for printing inks, adhesives and moldings
Assignee: Hercules LLC
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Filing: 1978-03-02
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Granted: 1979-07-31
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Expires: 1998-03-02
Abstract
Abstract It has been discovered that pastes of particulate thermoplastic polymers dispersed in a soft resinous phase can be prepared which heat-set by fusion of the thermoplastic binder. Polystyrene-type and polyacrylate-type polymers have been found to be particularly useful. 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
- 👤 Robert M. Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:03
CPC Classifications
C; C09; C09J; C09J125/00; C09J125/02; C09J125/04; C09J125/06; B; B41; B41M; B41M7/00; B41M7/0054; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08L33/00; C08L33/04; C08L33/06; C08L33/08; C08L33/10; C08L33/12; C08L93/00; C08L93/04; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/106; C09J133/00; C09J133/04; C09J133/06; C09J133/08; C08L2205/00; C08L2205/14; C08L2205/18; C08L2666/00; C08L2666/02
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
121 words
A composition of matter in paste form comprising discrete solid particles of a glassy thermoplastic polymeric material, said polymeric material having been prepared from at least 51% of at least one monomer selected from the group consisting of acrylate-type monomers and monovinylidene aromatic monomers, said polymeric material having a glass transition temperature of at least about 50° C., and a particle diameter between about 0.05 micron and about 50 microns, said discrete solid particles of polymeric material being dispersed in 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
121 words
A composition of matter in paste form comprising discrete solid particles of a glassy thermoplastic polymeric material, said polymeric material having been prepared from at least 51% of at least one monomer selected from the group consisting of acrylate-type monomers and monovinylidene aromatic monomers, said polymeric material having a glass transition temperature of at least about 50° C., and a particle diameter between about 0.05 micron and about 50 microns, said discrete solid particles of polymeric material being dispersed in 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 glassy thermoplastic polymer is polystyrene.
Claim 4
Dependent Claim
13 words
The composition of claim 1 wherein the glassy thermoplastic polymer is poly(methyll methacrylate).
Claim 5
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 6
Dependent Claim
45 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 ratio of said resin to said oil being from about 1:0 to about 1:15.
Claim 7
Dependent Claim
19 words
The composition of claim 5 wherein the diluent oil has a solubility parameter between about 7.0 and about 8.5.
Claim 8
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 9
Dependent Claim
14 words
The composition of claim 7 wherein the hydrocarbon resin is an aromatic hydrocarbon resin.
Claim 10
Dependent Claim
38 words
The composition of claim 7 wherein the ester of rosin is selected from a methyl ester of rosin, methyl ester of hydrogenated rosin, methyl ester of disproportionated rosin and esters and modified esters of rosin with polybasic alcohols.
Claim 11
Dependent Claim
9 words
The composition of claim 1 further comprising coloring material.
Claim 12
Dependent Claim
19 words
The composition of claim 1 further comprising at least one hardening agent selected from drying oils and unsaturated alkyds.
Claim 13
Dependent Claim
22 words
The composition of claim 11 wherein the hardening agent is selected from linseed oil, bodied linseed oil, and long oil isophthalic alkyd.
Claim 14
Dependent Claim
117 words
A printing ink in paste form comprising (1) a colorant, (2) discrete solid particles of a glassy thermoplastic polymeric material, said polymeric material having been prepared from at least 51% of at least one monomer selected from the group consisting of acrylate-type monomers and monovinylidine aromatic monomers, said polymeric material having a glass transition temperature of at least about 50° C. and a particle diameter between about 0.05 micron and about 50 microns, and (3) 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 printing ink in a ratio of polymeric material to cohesion-increasing material of between about 1:6 to about 1:1.
Claim 15
Dependent Claim
117 words
A printing ink in paste form comprising (1) a colorant, (2) discrete solid particles of a glassy thermoplastic polymeric material, said polymeric material having been prepared from at least 51% of at least one monomer selected from the group consisting of acrylate-type monomers and monovinylidine aromatic monomers, said polymeric material having a glass transition temperature of at least about 50° C. and a particle diameter between about 0.05 micron and about 50 microns, and (3) 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 printing ink in a ratio of polymeric material to cohesion-increasing material of between about 1:6 to about 1:1.
Claim 16
Dependent Claim
120 words
An adhesive composition in paste form comprising discrete solid particles of a glassy thermoplastic polymeric material, said polymeric material having been prepared from at least 51% of at least one monomer selected from the group consisting of acrylate-type monomers and monovinylidene aromatic monomers, said polymeric material having a glass transition temperature of at least about 50° C., and a particle diameter between about 0.05 micron and about 50 microns, said discrete solid particles of polymeric material being dispersed in 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
120 words
An adhesive composition in paste form comprising discrete solid particles of a glassy thermoplastic polymeric material, said polymeric material having been prepared from at least 51% of at least one monomer selected from the group consisting of acrylate-type monomers and monovinylidene aromatic monomers, said polymeric material having a glass transition temperature of at least about 50° C., and a particle diameter between about 0.05 micron and about 50 microns, said discrete solid particles of polymeric material being dispersed in 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
121 words
A molding material composition in paste form comprising discrete solid particles of a glassy thermoplastic polymeric material, said polymeric material having been prepared from at least 51% of at least one monomer selected from the group consisting of acrylate-type monomers and monovinylidene aromatic monomers, said polymeric material having a glass transition temperature of at least about 50° C., and a particle diameter between about 0.05 micron and about 50 microns, said discrete solid particles of polymeric material being dispersed in 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
121 words
A molding material composition in paste form comprising discrete solid particles of a glassy thermoplastic polymeric material, said polymeric material having been prepared from at least 51% of at least one monomer selected from the group consisting of acrylate-type monomers and monovinylidene aromatic monomers, said polymeric material having a glass transition temperature of at least about 50° C., and a particle diameter between about 0.05 micron and about 50 microns, said discrete solid particles of polymeric material being dispersed in 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 20
Dependent Claim
146 words
A process comprising printing onto the surface of a substrate a composition in paste form comprising (1) a colorant, (2) discrete solid particles of a glassy thermoplastic polymeric material, said polymeric material having been prepared from at least 51% of at least one monomer selected from the group consisting of acrylate-type monomers and monovinylidene aromatic monomers, said polymeric material having a glass transition temperature of at least about 50° C. and a particle diameter between about 0.05 micron and about 50 microns, and (3) 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 printed surface of the substrate for a length of time at a temperature sufficient to fuse the composition.
Claim 21
Dependent Claim
146 words
A process comprising printing onto the surface of a substrate a composition in paste form comprising (1) a colorant, (2) discrete solid particles of a glassy thermoplastic polymeric material, said polymeric material having been prepared from at least 51% of at least one monomer selected from the group consisting of acrylate-type monomers and monovinylidene aromatic monomers, said polymeric material having a glass transition temperature of at least about 50° C. and a particle diameter between about 0.05 micron and about 50 microns, and (3) 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 printed surface of the substrate for a length of time at a temperature sufficient to fuse the composition.
Claim 22
Dependent Claim
12 words
The printing ink of claim 13 wherein the colorant is carbon black.
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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) | 1982-07-30 | 1983-01-29 | 1983-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-30 | 1987-01-29 | 1987-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-30 | 1991-01-29 | 1991-07-31 | $7700.00 | Window Closed / Lapsed |