US4063886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mercerizing compositions
Assignee: Westvaco Corp
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Filing: 1976-06-01
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Granted: 1977-12-20
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Expires: 1996-06-01
Abstract
Abstract Disclosed herein is the mercerization of textiles with a composition comprising an aqueous caustic solution of mercerizing strength containing as a wetting agent at least 0.10% of a mixture of a nonionic surfactant and a polycarboxylic acid or salt thereof of the formula <IMAGE> wherein x and y are integers from 3 to 9, x and y together equal 12, R1 and R2 are selected from the group of hydrogen and COOM with at least one of R1 and R2 being COOM, and wherein M is a member of the group consisting of hydrogen, sodium, potassium, lithium and ammonium, the proportion of nonionic surfactant to polycarboxylic acid being between about 1:0.8 to 1:3.
Inventors
- 👤 John R. Powers
- 👤 Frances C. Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:16
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/32; D06M11/36; D06M11/38
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
126 words
In a process for mercerizing textiles, the improvement which comprises adding to an aqueous caustic solution of mercerizing strength, at least 0.10% by weight of caustic solution of a wetting agent which comprises a mixture of a nonionic surfactant and a polycarboxylic acid or salt thereof of the formula ##STR4## wherein x and y are integers from 3 to 9, x and y together equal 12, R 1 and R 2 are selected from the group of hydrogen and COOM with at least one of R 1 and R 2 being COOM, and wherein M is a member of the group consisting of hydrogen, sodium, potassium, lithium and ammonium, the proportion of nonionic surfactant to polycarboxylic acid or salt thereof being between about 1:0.8 to 1:3.
Claim 2
Dependent Claim
126 words
In a process for mercerizing textiles, the improvement which comprises adding to an aqueous caustic solution of mercerizing strength, at least 0.10% by weight of caustic solution of a wetting agent which comprises a mixture of a nonionic surfactant and a polycarboxylic acid or salt thereof of the formula ##STR4## wherein x and y are integers from 3 to 9, x and y together equal 12, R 1 and R 2 are selected from the group of hydrogen and COOM with at least one of R 1 and R 2 being COOM, and wherein M is a member of the group consisting of hydrogen, sodium, potassium, lithium and ammonium, the proportion of nonionic surfactant to polycarboxylic acid or salt thereof being between about 1:0.8 to 1:3.
Claim 3
Dependent Claim
17 words
The process according to claim 1 wherein said caustic concentration is from 14% to 28% by weight.
Claim 4
Dependent Claim
15 words
The process according to claim 1 wherein said caustic concentration is from 21% to 25%.
Claim 5
Dependent Claim
34 words
The process according to claim 2 wherein said wetting agent is present in an amount from 0.25% to about 1.0%, and the proportion of nonionic surfactant to polycarboxylic acid is from 1:1.2 to 1:1.7.
Claim 6
Dependent Claim
15 words
The process according to claim 4 wherein both R 1 and R 2 are COOM.
Claim 7
Dependent Claim
10 words
The process according to claim 5 wherein M is sodium.
Claim 8
Dependent Claim
17 words
The process according to claim 4 wherein only one of R 1 and R 2 is COOM.
Claim 9
Dependent Claim
10 words
The process according to claim 7 wherein M is sodium.
Claim 10
Dependent Claim
24 words
The process according to claim 4 wherein said non-ionic surfactant is a member of the group consisting of ethoxylated alcohols and ethoxylated alkyl phenols.
Claim 11
Dependent Claim
11 words
The process according to claim 1 wherein said textiles are cotton.
References Cited (Backward Citations)
US1970578A
Cited
US2033125A
Cited
US3748267A
Cited
US3661787A
Cited
US3734859A
Cited
US3956161A
Cited
US3966628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-19 | 1981-06-20 | 1981-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-19 | 1985-06-20 | 1985-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-19 | 1989-06-20 | 1989-12-20 | $7700.00 | Window Closed / Lapsed |