US4196107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-solid water-based coating compositions
Assignee: PPG Industries Inc
•
Filing: 1978-06-05
•
Granted: 1980-04-01
•
Expires: 1998-06-05
Abstract
Abstract This invention relates to coating compositions which are "solid" prior to application, yet, which when applied to a substrate, flow and level in a manner similar to conventional coating compositions. The coating compositions of the invention comprise a gelled coating composition, capable of application and flow on a solid substrate comprising: (a) a water reducible polymer, (b) water, (c) an electrolyte, and (d) a colloidal gelling agent, gelable by interaction with the electrolyte, in an amount sufficient, when interacted with said electrolyte, to gel the composition to form a stable semisolid and to provide a composition reducible to a coating application viscosity upon the application of a relatively small shearing force at a relatively small shearing rate; which gelled coating composition, after being sheared to a coating application viscosity, does not recover substantial colloidal gelling agent contributed gel structure.
Inventors
- 👤 James E. Jones
- 👤 Rodger G. Temple
- 👤 Jerome A. Seiner
- 👤 Sharon L. Young
- 👤 William G. Boberski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:19
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/04
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
107 words
A gelled coating composition, capable of application and flow on a solid substrate, comprising: (a) a water reducible, film-forming polymer, (b) water, (c) an electrolyte, and (d) a colloidal gelling agent, gelable by interaction with said electrolyte, in an amount sufficient, when substantially interacted with said electrolyte, to gel the composition to form a stable semi-solid or solid and to provide a composition reducible to a coating application viscosity upon the application of a relatively small shearing force, at a relatively small shearing rate, (e) which gelled coating composition, after being sheared to a coating application viscosity, does not recover substantial colloidal gelling agent-electrolyte contributed gel structure.
Claim 2
Dependent Claim
107 words
A gelled coating composition, capable of application and flow on a solid substrate, comprising: (a) a water reducible, film-forming polymer, (b) water, (c) an electrolyte, and (d) a colloidal gelling agent, gelable by interaction with said electrolyte, in an amount sufficient, when substantially interacted with said electrolyte, to gel the composition to form a stable semi-solid or solid and to provide a composition reducible to a coating application viscosity upon the application of a relatively small shearing force, at a relatively small shearing rate, (e) which gelled coating composition, after being sheared to a coating application viscosity, does not recover substantial colloidal gelling agent-electrolyte contributed gel structure.
Claim 3
Dependent Claim
13 words
A composition, as in claim 1, where the electrolyte is a polyfunctional salt.
Claim 4
Dependent Claim
16 words
A composition, as in claim 1, where the colloidal gelling agent is an anionic silica sol.
Claim 5
Dependent Claim
13 words
A composition, as in claim 3, where the electrolyte is a polyfunctional salt.
Claim 6
Dependent Claim
106 words
A gelled coating composition capable of application and flow on a solid substrate, comprising: (a) a water reducible film-forming polymer which is an electrolyte, (b) water, (c) a colloidal gelling agent, gelable by interaction with said electrolyte, in an amount sufficient, when substantially interacted with said electrolyte, to gel the composition to form a stable semi-solid or solid and to provide a composition reducible to a coating application viscosity upon application of a relatively small shearing force, at a relatively small shearing rate, (d) which gelled coating composition, after being sheared to a coating application viscosity, does not recover substantial colloidal gelling agent-electrolyte contributed gel structure.
Claim 7
Dependent Claim
106 words
A gelled coating composition capable of application and flow on a solid substrate, comprising: (a) a water reducible film-forming polymer which is an electrolyte, (b) water, (c) a colloidal gelling agent, gelable by interaction with said electrolyte, in an amount sufficient, when substantially interacted with said electrolyte, to gel the composition to form a stable semi-solid or solid and to provide a composition reducible to a coating application viscosity upon application of a relatively small shearing force, at a relatively small shearing rate, (d) which gelled coating composition, after being sheared to a coating application viscosity, does not recover substantial colloidal gelling agent-electrolyte contributed gel structure.
Claim 8
Dependent Claim
13 words
A composition, as in claim 5, where the polymeric electrolyte is a salt.
Claim 9
Dependent Claim
16 words
A composition, as in claim 5, where the colloidal gelling agent is an anionic silica sol.
Claim 10
Dependent Claim
13 words
A composition, as in claim 7, where the polymeric electrolyte is a salt.
Claim 11
Dependent Claim
42 words
A composition, as in claims 1 or 5, containing a water insoluble solvent which is not a solvent for the film forming polymer and whose presence contributes increased hiding by the creation of microvoids in a dried film produced from said composition.
Claim 12
Dependent Claim
11 words
A composition, as in claims 1 or 5, containing pigment particles.
Claim 13
Dependent Claim
15 words
A composition, as in claims 1 or 5, containing dispersed pigment particles carrying a charge.
Claim 14
Dependent Claim
14 words
A composition, as in claims 1 or 5, containing polymeric particles carrying a charge.
Claim 15
Independent Claim
108 words
A method of forming a gelled coating composition capable of application and flow on a solid substrate, which coating composition, after being sheared to a coating application viscosity, does not recover substantial colloidal gelling agent-electrolyte contributed gel structure, which method comprises admixing with a preformed water-based coating composition: an electrolyte, and a colloidal gelling agent, gelable by interaction with said electrolyte in an amount sufficient, when substantially interacted with said electrolyte, to gel the composition to form a stable semi-solid or solid, and to provide a composition reducible to a coating application viscosity upon the application of a relatively small shearing force, at a relatively small shearing rate.
Claim 16
Independent Claim
108 words
A method of forming a gelled coating composition capable of application and flow on a solid substrate, which coating composition, after being sheared to a coating application viscosity, does not recover substantial colloidal gelling agent-electrolyte contributed gel structure, which method comprises admixing with a preformed water-based coating composition: an electrolyte, and a colloidal gelling agent, gelable by interaction with said electrolyte in an amount sufficient, when substantially interacted with said electrolyte, to gel the composition to form a stable semi-solid or solid, and to provide a composition reducible to a coating application viscosity upon the application of a relatively small shearing force, at a relatively small shearing rate.
Claim 17
Dependent Claim
32 words
A method, as in claim 13, wherein the composition is heated at a temperature and for a time sufficient to cause the substantial completion of the interaction between the electrolyte and colloid.
Claim 18
Independent Claim
109 words
A method of forming a gelled coating composition capable of application and flow on a solid substrate, which coating composition, after being sheared to a coating application viscosity, does not recover substantial colloidal gelling agent-electrolyte contributed gel structure, which method comprises admixing with a preformed water-based coating composition, containing an electrolyte: a colloidal gelling agent, gelable by interaction with said electrolyte, in an amount sufficient, when substantially interacted with said electrolyte, to gel the composition to form a viscosity stable semi-solid or solid, and to provide a composition reducible to a coating application viscosity upon the application of a relatively small shearing force, at a relatively small shearing rate.
Claim 19
Independent Claim
109 words
A method of forming a gelled coating composition capable of application and flow on a solid substrate, which coating composition, after being sheared to a coating application viscosity, does not recover substantial colloidal gelling agent-electrolyte contributed gel structure, which method comprises admixing with a preformed water-based coating composition, containing an electrolyte: a colloidal gelling agent, gelable by interaction with said electrolyte, in an amount sufficient, when substantially interacted with said electrolyte, to gel the composition to form a viscosity stable semi-solid or solid, and to provide a composition reducible to a coating application viscosity upon the application of a relatively small shearing force, at a relatively small shearing rate.
Claim 20
Dependent Claim
32 words
A method, as in claim 15, wherein the composition is heated at a temperature and for a time sufficient to cause the substantial completion of the interaction between the electrolyte and colloid.
Claim 21
Independent Claim
112 words
A method of forming a gelled coating composition capable of application and flow on a solid substrate, which coating composition, after being sheared to a coating viscosity, does not recover substantial colloidal gelling agent-electrolyte contributed gel structure, which method comprising admixing with a water-based coating composition during the formulation of its ingredients: an electrolyte, and a colloidal gelling agent, gelable by interaction with said electrolyte, in an amount sufficient, when substantially interacted with said electrolyte, to gel the composition to form a stable semi-solid or solid and to provide a composition reducible to a coating application viscosity upon the application of a relatively small shearing force, at a relatively small shearing rate.
Claim 22
Independent Claim
112 words
A method of forming a gelled coating composition capable of application and flow on a solid substrate, which coating composition, after being sheared to a coating viscosity, does not recover substantial colloidal gelling agent-electrolyte contributed gel structure, which method comprising admixing with a water-based coating composition during the formulation of its ingredients: an electrolyte, and a colloidal gelling agent, gelable by interaction with said electrolyte, in an amount sufficient, when substantially interacted with said electrolyte, to gel the composition to form a stable semi-solid or solid and to provide a composition reducible to a coating application viscosity upon the application of a relatively small shearing force, at a relatively small shearing rate.
Claim 23
Dependent Claim
32 words
A method, as in claim 17, wherein the composition is heated at a temperature and for a time sufficient to cause the substantial completion of the interaction between the electrolyte and colloid.
Claim 24
Independent Claim
114 words
A method of forming a gelled coating composition capable of application and flow on a solid substrate, which coating composition, after being sheared to a coating viscosity, does not recover substantial colloidal gelling agent-electrolyte contributed gel structure, which method comprises admixing with a water-based coating composition, comprising a film-forming polymeric electrolyte, during the formulation of its ingredients: a colloidal gelling agent, gelable by interaction with said electrolyte, in an amount sufficient, when substantially interacted with said electrolyte, to gel the composition to form a stable semi-solid or solid and to provide a composition reducible to a coating application viscosity upon the application of a relatively small shearing force, at a relatively small shearing rate.
Claim 25
Independent Claim
114 words
A method of forming a gelled coating composition capable of application and flow on a solid substrate, which coating composition, after being sheared to a coating viscosity, does not recover substantial colloidal gelling agent-electrolyte contributed gel structure, which method comprises admixing with a water-based coating composition, comprising a film-forming polymeric electrolyte, during the formulation of its ingredients: a colloidal gelling agent, gelable by interaction with said electrolyte, in an amount sufficient, when substantially interacted with said electrolyte, to gel the composition to form a stable semi-solid or solid and to provide a composition reducible to a coating application viscosity upon the application of a relatively small shearing force, at a relatively small shearing rate.
Claim 26
Dependent Claim
32 words
A method, as in claim 18, where the composition is heated at a temperature and for a time sufficient to cause the substantial completion of the interaction between the electrolyte and colloid.
Claim 27
Independent Claim
28 words
A method as in claims 13, 14, 15, 16, 17, 18, 19 or 20 wherein a gel structure is formed after the composition is placed in a container.
Claim 28
Independent Claim
28 words
A method as in claims 13, 14, 15, 16, 17, 18, 19 or 20 wherein a thin polymeric film is placed upon the surface of the coating composition.
Claim 29
Independent Claim
25 words
A method as in claims 13, 14, 15, 16, 17, 18, 19 or 20 wherein the resultant gel is cut and placed into a container.
References Cited (Backward Citations)
GB833583A
Cited
US3280050A
Cited
GB1068715A
Cited
GB1029723A
Cited
US3810784A
Cited
US4097430A
Cited
USRE28957E
Cited
GB1413126A
Cited
GB1430866A
Cited
US3928676A
Cited
US3993510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-01 | 1983-10-01 | 1984-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-01 | 1987-10-01 | 1988-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-01 | 1991-10-01 | 1992-04-01 | $7700.00 | Window Closed / Lapsed |