US5112652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formaldehyde scavenging process useful in manufacturing durable press finished fabric
Assignee: East Central Wax Co Inc
•
Filing: 1990-10-29
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Granted: 1992-05-12
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Expires: 2010-10-29
Abstract
Abstract Acetoacetamide is used as an effective formaldehyde scavenger in the manufacture of composition board using a urea formaldehyde adhesive resin and in the manufacture of durable press finished fabrics using a nitrogen containing methylol resin.
Inventors
- 👤 Jack T. Greene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:10
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; C; C09; C09J; C09J161/00; C09J161/20; C09J161/22; C09J161/24; C08; C08L; C08L2666/00; C08L2666/28; C08L2666/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
In the process of manufacturing a durable press finished fabric where cellulosic fiber fabrics are finished with a nitrogen containing methylol resin, dried and cured, the improvement comprising the step of contacting the fabric with a treatment bath containing acetoacetamide in the process of finishing it in an amount sufficient to scavenge substantially all formaldehyde without adversely affecting the durable press finished fabric.
Claim 2
Dependent Claim
63 words
In the process of manufacturing a durable press finished fabric where cellulosic fiber fabrics are finished with a nitrogen containing methylol resin, dried and cured, the improvement comprising the step of contacting the fabric with a treatment bath containing acetoacetamide in the process of finishing it in an amount sufficient to scavenge substantially all formaldehyde without adversely affecting the durable press finished fabric.
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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) | 1995-05-12 | 1995-11-11 | 1996-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-12 | 1999-11-11 | 2000-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-12 | 2003-11-11 | 2004-05-12 | $7700.00 | Window Closed / Lapsed |