US3959187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed synthetic ester lubricants as useful polymeric fiber lubricants
Assignee: Henkel Corp
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Filing: 1974-12-19
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Granted: 1976-05-25
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Expires: 1994-12-19
Abstract
Abstract Improved water-emulsifiable ester lubricants for polymeric and metal materials are provided which yield stable emulsions even in the absence of emulsifying agents. The ester lubricants are obtainable from a higher molecular weight di- or polycarboxylic acid and a polyalkoxylated lower alkyl alcohol.
Inventors
- 👤 Arie Dick Kardol
- 👤 Adrianus Trapman
- 👤 Gijsbert VAN DER Waal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:41
CPC Classifications
C; C10; C10M; C10M3/00; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/28; C10M2207/283; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/11; C10N; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/20; C10N2040/46; D; D06; D06M; D06M2200/00; D06M2200/40
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
178 words
A synthetic ester lubricant charactericized by having good thermal stability and emulsifiability in water comprising 25-45 % by weight of a polycarboxylic acid ester obtained from a poly(C 2 -C 3 ) alkoxylated lower C 1 -C 6 alkyl alcohol and a polycarboxylic acid containing 2-4 carboxyl groups and 20-80 carbon atoms and having the formula ##EQU5## wherein R represents a C 1 -C 6 alkyl group, R' represents a C 2 -C 3 alkylene group, n represents an integer from 4-20, R" represents a hydrocarbon group containing 20-80 carbon atoms and m represents an integer from 1-3, said polycarboxylic acid ester having an acid number and hydroxyl value less than 20, and 55-75% by weight of a monocarboxylic acid ester corresponding to the structural formula ##EQU6## in which R"" represents an alkyl group containing 6-12 carbon atoms, R'" represents an alkyl group containing 1-4 carbon atoms and p and q represent whole numbers from 0-2 and 2-4, respectively, with the proviso that p+q=4, said monocarboxylic acid ester having an acid number and hydroxyl value less than 8.
Claim 2
Dependent Claim
178 words
A synthetic ester lubricant charactericized by having good thermal stability and emulsifiability in water comprising 25-45 % by weight of a polycarboxylic acid ester obtained from a poly(C 2 -C 3 ) alkoxylated lower C 1 -C 6 alkyl alcohol and a polycarboxylic acid containing 2-4 carboxyl groups and 20-80 carbon atoms and having the formula ##EQU5## wherein R represents a C 1 -C 6 alkyl group, R' represents a C 2 -C 3 alkylene group, n represents an integer from 4-20, R" represents a hydrocarbon group containing 20-80 carbon atoms and m represents an integer from 1-3, said polycarboxylic acid ester having an acid number and hydroxyl value less than 20, and 55-75% by weight of a monocarboxylic acid ester corresponding to the structural formula ##EQU6## in which R"" represents an alkyl group containing 6-12 carbon atoms, R'" represents an alkyl group containing 1-4 carbon atoms and p and q represent whole numbers from 0-2 and 2-4, respectively, with the proviso that p+q=4, said monocarboxylic acid ester having an acid number and hydroxyl value less than 8.
Claim 3
Dependent Claim
25 words
The ester lubricant of claim 1 wherein R is a C 1 -C 3 alkyl group, n is 5-9 and R" contains 32-60 carbon atoms.
Claim 4
Dependent Claim
38 words
The ester lubricant of claim 2 wherein the acid number and hydroxyl value of the polycarboxylic acid ester are less than 15 and the acid number and hydroxyl value of the monocarboxylic acid ester are less than 3.
Claim 5
Independent Claim
178 words
A method for lubricating polymeric fibers which comprises treating the fiber with a synthetic ester containing 25-45% by weight of a polycarboxylic acid ester obtained from a poly (C 2 -C 3 ) alkoxylated lower C 1 -C 6 alcohol and a polycarboxylic acid containing 2-4 carboxyl groups and 20-80 carbon atoms and having the formula ##EQU7## wherein R represents a C.sub. 1 -C.sub. 6 alkyl group, R' represents a C.sub. 2 -C 3 alkylene group, n represents an integer from 4-29, R" represents a hydrocarbon group containing 20-80 carbon atoms and m represents an integer from 1-3, said polycarboxylic acid ester having an acid number and hydroxyl value less than 20, and 55-75% by weight of a monocarboxylic acid ester corresponding to the structural formula ##EQU8## in which R"" represents an alkyl group containing 6-12 carbon atoms, R'" represents an alkyl group containing 1-4, carbon atoms and p and q represent whole numbers from 0-2 and 2-4, respectively, with the proviso that p+q=4, said monocarboxylic acid ester having an acid number and hydroxyl value less than 8.
Claim 6
Independent Claim
178 words
A method for lubricating polymeric fibers which comprises treating the fiber with a synthetic ester containing 25-45% by weight of a polycarboxylic acid ester obtained from a poly (C 2 -C 3 ) alkoxylated lower C 1 -C 6 alcohol and a polycarboxylic acid containing 2-4 carboxyl groups and 20-80 carbon atoms and having the formula ##EQU7## wherein R represents a C.sub. 1 -C.sub. 6 alkyl group, R' represents a C.sub. 2 -C 3 alkylene group, n represents an integer from 4-29, R" represents a hydrocarbon group containing 20-80 carbon atoms and m represents an integer from 1-3, said polycarboxylic acid ester having an acid number and hydroxyl value less than 20, and 55-75% by weight of a monocarboxylic acid ester corresponding to the structural formula ##EQU8## in which R"" represents an alkyl group containing 6-12 carbon atoms, R'" represents an alkyl group containing 1-4, carbon atoms and p and q represent whole numbers from 0-2 and 2-4, respectively, with the proviso that p+q=4, said monocarboxylic acid ester having an acid number and hydroxyl value less than 8.
Claim 7
Dependent Claim
18 words
The method of claim 4 wherein the ester lubricant is applied to the fiber as an aqueous emulsion.
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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) | 1979-05-25 | 1979-11-24 | 1980-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-25 | 1983-11-24 | 1984-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-25 | 1987-11-24 | 1988-05-25 | $7700.00 | Window Closed / Lapsed |