Patent US3821147A successfully refreshed from Google Patents.
US3821147A
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US
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Composition for imparting non-permanent soil-release characteristics comprising an aqueous solution of polycarboxylate copolymer and water-soluble amine
Assignee: Colgate Palmolive Co
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Filing: 1972-03-24
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Granted: 1974-06-28
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Expires: 1992-03-24
Abstract
Abstract A composition for applying non-permanent soil-release finish to fabrics from dilute solution comprising a polycarboxylate polymer having an acid equivalent weight of from about 110 to 175, and a water-soluble amine. A preferred polycarboxylate polymer is a copolymer of 2/3 methacrylic acid/ 1/3 ethylacrylate. The composition is particularly useful for applying a soil-release finish in the rinse cycle of a home laundry process.
Inventors
- 👤 R Dickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:09
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0036; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2279
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
15 words
The composition of claim 1 wherein the copolymer has an acid equivalent weight of 125.
Claim 2
Dependent Claim
18 words
The composition of claim 1 wherein the copolymer consists of about 2/3 methacrylic acid and about 1/3 ethylacrylate.
Claim 3
Dependent Claim
17 words
The composition of claim 1 wherein the ratio of amine to polymer is from 1:1 to 30:1.
Claim 4
Dependent Claim
11 words
The composition of claim 1 wherein the amine is tetramethylene diamine.
Claim 5
Dependent Claim
12 words
The composition of claim 1 wherein the amine is tris (2-aminoethyl) amine.
Claim 6
Dependent Claim
11 words
The Composition of claim 1 wherein the amine is N,N-dimethyl, N'',N''-diethanolethylene-diamine.
Claim 7
Dependent Claim
16 words
The composition of claim 1 wherein the molecular weight of the copolymer is about one million.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |