US3859151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet with microcapsules containing volatile flame-retardant
Assignee: Champion International Corp
•
Filing: 1973-08-22
•
Granted: 1975-01-07
•
Expires: 1993-08-22
Abstract
Abstract A flame-resistant, tufted carpet is prepared by providing the primary backing support for the tufted yarn with microcapsules containing a volatile flame-retardant agent. The microcapsules are heat activatable so as to release the flame-retarding agent under the action of heat and form a flame-resistant atmosphere that surrounds the protruding tufts. The microcapsles may be coated onto either side of the primary backing support so as to penetrate said support and be positioned closely adjacent the yarn tufts. Additionally, the microcapsules may be incorporated into an adhesive layer which is superposed over the side of the primary backing support opposite the protruding yarn tufts to give further flame resistance to the carpet.
Inventors
- 👤 David N Vincent
- 👤 Ronald Golden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:27
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/08; D05; D05C; D05C17/00; D05C17/02; D05C17/023; D06M13/244; D06M13/282; D06M13/292; D06M13/298; D06M23/00; D06M23/12; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23921
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
93 words
A FLAME-RESISTANT, TUFTED PRODUCT, WHICH COMPRISES A PRIMARY BACKING SUBSTRATE HAVING A FIRST SIDE AND A SECOND SIDE, YARN TUFTED TO SAID FIRST SIDE OF SAID PRIMARY BACKING SUBSTRATE AND PROJECTING THROUGH SAID PRIMARY BACKING SUBSTRATE TO FORM A PILE ON SAID FIRST SIDE, AN ADHESIVE LAYER SUPER POSED OVER SAID SECOND SIDE OF SAID PRIMARY BACKING SUBSTRATE, SAID PRIMARY BACKING SUBSTRATE BEARING MICROCAPSULES CONTAINING A FLAME-RETARDING AGENT, SAID FLAME-RETARDING AGENT BEING RELEASABLE FROM SAID MICROCAPSULES UNDER THE ACTION OF HEAT ON SAID MICROCAPSULES TO FORM A FLAME-RESISTANT ATMOSPHERE SURROUNDING SAID YARN TUFTS.
Claim 2
Dependent Claim
93 words
A FLAME-RESISTANT, TUFTED PRODUCT, WHICH COMPRISES A PRIMARY BACKING SUBSTRATE HAVING A FIRST SIDE AND A SECOND SIDE, YARN TUFTED TO SAID FIRST SIDE OF SAID PRIMARY BACKING SUBSTRATE AND PROJECTING THROUGH SAID PRIMARY BACKING SUBSTRATE TO FORM A PILE ON SAID FIRST SIDE, AN ADHESIVE LAYER SUPER POSED OVER SAID SECOND SIDE OF SAID PRIMARY BACKING SUBSTRATE, SAID PRIMARY BACKING SUBSTRATE BEARING MICROCAPSULES CONTAINING A FLAME-RETARDING AGENT, SAID FLAME-RETARDING AGENT BEING RELEASABLE FROM SAID MICROCAPSULES UNDER THE ACTION OF HEAT ON SAID MICROCAPSULES TO FORM A FLAME-RESISTANT ATMOSPHERE SURROUNDING SAID YARN TUFTS.
Claim 3
Dependent Claim
20 words
The flame-resistant tufted product of claim 1 wherein additional microcapsules containing a flame-retardant agent are incorporated into said adhesive layer.
Claim 4
Dependent Claim
30 words
The flame-resistant product of claim 1 wherein said microcapsules are present in a coating on said primary backing substrate which is between said primary backing substrate and said adhesive layer.
Claim 5
Dependent Claim
23 words
The flame-resistant product of claim 1 wherein said microcapsules are present in a coating on said first side of said primary backing substrate.
Claim 6
Dependent Claim
18 words
The flame-resistant product of claim 1 wherein said microcapsules have walls comprising a partially condensed formaldehyde condensation product.
Claim 7
Dependent Claim
17 words
The flame-resistant product of claim 5 wherein said partially condensed formaldehyde condensation product is urea-formaldehyde or melamine-formaldehyde.
Claim 8
Dependent Claim
13 words
The flame-resistant product of claim 1 wherein said primary backing substrate is jute.
Claim 9
Dependent Claim
14 words
The flame-resistant product of claim 1 wherein said secondary backing layer is a latex.
Claim 10
Dependent Claim
16 words
The flame-resistant product of claim 1 wherein said yarn is a polyester, nylon or a polyolefin.
Claim 11
Dependent Claim
13 words
The flame-resistant product of claim 1 wherein said flame-retarding agent is highly volatile.
Claim 12
Dependent Claim
12 words
The flame-resistant product of claim 10 wherein said flame-retarding agent is tetrabromoethane.
Claim 13
Dependent Claim
20 words
The flame-resistant product of claim 1 wherein said microcapsules have an average particle diameter between 10 and about 20 microns.
Claim 14
Dependent Claim
101 words
A process for the production of a flame-resistant, tufted product, which comprises providing a primary backing substrate having a first side and a second side, contacting said substrate with a dispeRsion comprising microcapsules containing a volatile flame-retarding agent so as to provide a uniform coating of said capsules over said substrates, said flame-retarding agent being releasable from said microcapsules under the action of heat on said microcapsules, tufting said primary backing substrate with a flammable yarn so as to provide tufts extending from said first side of said substrate, and coating said second side of said substrate with an adhesive layer.
Claim 15
Dependent Claim
101 words
A process for the production of a flame-resistant, tufted product, which comprises providing a primary backing substrate having a first side and a second side, contacting said substrate with a dispeRsion comprising microcapsules containing a volatile flame-retarding agent so as to provide a uniform coating of said capsules over said substrates, said flame-retarding agent being releasable from said microcapsules under the action of heat on said microcapsules, tufting said primary backing substrate with a flammable yarn so as to provide tufts extending from said first side of said substrate, and coating said second side of said substrate with an adhesive layer.
Claim 16
Dependent Claim
20 words
The process of claim 13 wherein said primary backing substrate is a fibrous material, and said microcapsules penetrate said substrate.
Claim 17
Dependent Claim
12 words
The process of claim 14 wherein said primary backing substrate is jute.
Claim 18
Dependent Claim
12 words
The process of claim 13 wherein said adhesive layer is a latex.
Claim 19
Dependent Claim
11 words
The process of claim 13 wherein said flame-retardant agent is tetrabromoethane.
Claim 20
Dependent Claim
17 words
The process of claim 13 wherein said microcapsules have walls comprising a partially condensed formaldehyde condensation product.
Claim 21
Dependent Claim
14 words
The process of claim 18 wherein said micro-capsules have walls comprising urea-formaldehyde or melamine-formaldehyde.
Claim 22
Dependent Claim
21 words
The process of claim 13 wherein said micro-capsules have an average particle diameter of between about 10 and about 20 microns.
References Cited (Backward Citations)
US3418656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |