US4654256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article containing microencapsulated materials
Assignee: 3M Co
•
Filing: 1985-02-08
•
Granted: 1987-03-31
•
Expires: 2005-02-08
Abstract
Abstract Articles comprising a thermoplastic substrate bearing rupturable microcapsules in a binder on at least one surface thereof. These articles can be applied by means of heat and pressure to porous objects. The process of applying the articles to porous objects further results in partially embedding the microcapsules in the substrate. Thermoplastic substrates having rupturable microcapsules partially embedded therein, but not having a binder, are another aspect of this invention.
Inventors
- 👤 Richard H. Doree
- 👤 Josef V. Ugro, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:13
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/02; B01J13/025; B44; B44C; B44C1/00; B44C1/16; B44C1/165; B44C1/17; B44C1/1712; D; D06; D06N; D06N7/00; D06N7/0005; D06N7/0039; D06N7/0052; F; F28; F28D; F28D20/00; F28D20/02; F28D20/023; Y; Y02; Y02E; Y02E60/00; Y02E60/14; Y10; Y10S; Y10S428/00; Y10S428/905; Y10T; Y10T428/00; Y10T428/20; Y10T428/249921; Y10T428/249953; Y10T428/249994; Y10T428/249995; Y10T428/249997; Y10T428/25; Y10T428/254; Y10T428/29; Y10T428/2982; Y10T428/2984; Y10T428/2985; Y10T428/2987; Y10T428/31504; Y10T428/31855; Y10T428/31935; Y10T428/31938
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
13 words
An article comprising a thermoplastic polymeric substrate having rupturable microcapsules partially embedded therein.
Claim 2
Dependent Claim
13 words
An article comprising a thermoplastic polymeric substrate having rupturable microcapsules partially embedded therein.
Claim 3
Dependent Claim
20 words
The article of claim 1 wherein said substrate is selected from the group consisting of polyolefin polymers and polyvinyl polymers.
Claim 4
Dependent Claim
10 words
The article of claim 1 wherein said microcapsules comprise gelatin.
Claim 5
Dependent Claim
19 words
The article of claim 3 wherein said microcapsules have an average diameter between about 3 and about 30 micrometers.
Claim 6
Dependent Claim
11 words
The article of claim 1 wherein said microcapsules comprise aminoplast resin.
Claim 7
Dependent Claim
19 words
The article of claim 5 wherein said microcapsules have an average diameter between about 3 and about 30 micrometers.
Claim 8
Dependent Claim
19 words
The article of claim 1 wherein said microcapsules have an average diameter between about 3 and about 30 micrometers.
Claim 9
Dependent Claim
24 words
Article comprising: (a) a porous substrate, and (b) a patch adhered thereto, said patch comprising a thermoplastic substrate having rupturable microcapsules partially embedded therein.
Claim 10
Dependent Claim
24 words
Article comprising: (a) a porous substrate, and (b) a patch adhered thereto, said patch comprising a thermoplastic substrate having rupturable microcapsules partially embedded therein.
References Cited (Backward Citations)
US4493869A
Cited
US4528226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-30 | 1990-09-29 | 1991-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-30 | 1994-09-29 | 1995-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-30 | 1998-09-29 | 1999-03-31 | $7700.00 | Window Closed / Lapsed |