US3849159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet embossing in register with print
Assignee: Congoleum Corp
•
Filing: 1973-08-06
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Granted: 1974-11-19
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Expires: 1993-08-06
Abstract
Abstract Pile fabrics prepared from nylon carpet fibers having a textured or embossed surface and a process of developing the textured effect which comprises selectively contacting the surface of said carpet with a chemical fiber shrinking agent therefor, allowing the shrinking action to occur and, thereafter, effectively removing the shrinking agent from the surface, said shrinking serving to reduce the height of the pile in the treated areas and creating said textured surface.
Inventors
- 👤 L Palmer
- 👤 R Conger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:25
CPC Classifications
D; D06; D06Q; D06Q1/00; D06Q1/06; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/924; Y10S8/929
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
52 words
A PROCESS FOR PRODUCING AN EMBOSSED EFFECT ON NYLON PILE FABRIC HAVING A SURFACE OF NYLON FIBERS WHICH COMPRISES, APPLYING TO DEFINED AREAS OF THE PILE SURFACE OF SAID FABRIC A CHEMICAL EMBOSSING AGENT FOR SAID FIBERS, SAID AGENT BEING BLENDED INTO A LIQUID BASE VEHICLE AND CORRESPONDING TO THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
52 words
A PROCESS FOR PRODUCING AN EMBOSSED EFFECT ON NYLON PILE FABRIC HAVING A SURFACE OF NYLON FIBERS WHICH COMPRISES, APPLYING TO DEFINED AREAS OF THE PILE SURFACE OF SAID FABRIC A CHEMICAL EMBOSSING AGENT FOR SAID FIBERS, SAID AGENT BEING BLENDED INTO A LIQUID BASE VEHICLE AND CORRESPONDING TO THE FOLLOWING FORMULA:
Claim 3
Dependent Claim
41 words
The process of claim 1 wherein said embossing agent is dimethylthiourea with formic acid in concentrations of 5 per cent to 60 per cent dimethylthiourea and 10 per cent to 50 per cent formic acid, by weight, of total embossing composition.
Claim 4
Dependent Claim
16 words
The process of claim 2 wherein said embossing agent is incorporated in a transparent vehicle therefor.
Claim 5
Dependent Claim
33 words
The process of claim 2 wherein said embossed effect is made in register with a printed color design on said fabric and said vehicle is a dye printing paste carrying said embossing agent.
Claim 6
Dependent Claim
19 words
The process of claim 2 wherein said embossing action occurs within approximately 15 minutes at a temperature above 50*C.
Claim 7
Dependent Claim
16 words
The process in accordance with claim 5 wherein said embossing action occurs in a steam environment.
Claim 8
Dependent Claim
25 words
The process of claim 6 wherein said embossing composition is present in a concentration of about 55 to 70 per cent in the vehicle therefor.
Claim 9
Dependent Claim
14 words
The process of claim 7 wherein said embossing agent is thiourea and formic acid.
Claim 10
Dependent Claim
14 words
The process of claim 7 wherein said embossing agent is dimethylthiourea and acetic acid.
Claim 11
Dependent Claim
14 words
The process of claim 7 wherein said embossing agent is dimethylthiourea and phosphoric acid.
Claim 12
Dependent Claim
14 words
The process of claim 7 wherein said embossing agent is dimethylthiourea and oxalic acid.
Claim 13
Dependent Claim
14 words
The process of claim 7 wherein said embossing agent is dimethylthiourea and hydrochloric acid.
Claim 14
Dependent Claim
14 words
The process of claim 7 wherein said embossing agent is diethylthiourea and formic acid.
Claim 15
Dependent Claim
14 words
The process of claim 7 wherein said embossing agent is diethylthiourea and acetic acid.
Claim 16
Dependent Claim
14 words
The process of claim 7 wherein said embossing agent is diethylthiourea and phosphoric acid.
Claim 17
Dependent Claim
14 words
The process of claim 7 wherein said embossing agent is diethylthiourea and oxalic acid.
Claim 18
Dependent Claim
14 words
The process of claim 7 wherein said embossing agent is diethylthiourea and hydrochloric acid.
Claim 19
Dependent Claim
14 words
The process of claim 7 wherein said embossing agent is dimethylethylthiourea and formic acid.
Claim 20
Dependent Claim
14 words
The process of claim 7 wherein said embossing agent is trimethylthiourea and formic acid.
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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) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |