US4225646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating fibers and fabrics
Assignee: Pat-Chem Inc
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Filing: 1979-05-09
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Granted: 1980-09-30
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Expires: 1999-05-09
Abstract
Abstract A method of improving the dimensional stability, crease resistance and surface appearance of fibers, fabrics and textile products of cotton, polyester-cotton blends, polyesters and polyester-synthetic blends comprises applying to the fiber, fabric or textile product, to a level of 2-4% by weight of added solids, a resin obtained in a two-step process from phthalic or isophthalic acid, trimethylolpropane and trimellitic anhydride and an alkanoic acid of 10-20 carbon atoms or a polyether glycol of molecular weight 500-700 and neopentyl glycol.
Inventors
- 👤 James E. Cashion, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:12
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/507; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T442/00; Y10T442/20; Y10T442/2369; Y10T442/2393; Y10T442/2762; Y10T442/2861
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
128 words
A method of improving the dimensional stability, crease resistance and surface appearance of fibers, fabrics and textile products of cotton, polyester-cotton blends, polyesters and polyester-synthetic blends, comprising applying to the fiber, fabric or textile product, to a level of 2-4% by weight of added solids, a resin obtained from reaction between (a) 30-35% by weight of phthalic or isophthalic acid, 50-55% by weight of polyether glycol of molecular weight 500-700, 8-12% by weight of neopentyl glycol and 2-5% by weight of trimethylolpropane heated at 120-130 degrees C to produce an intermediate having an acid number of 1-17 and from a further reaction of the thus-produced intermediate with (b) 3-6% by weight of trimellitic anhydride at 160-190 degrees C to produce the resin having an acid number of 1-50.
Claim 2
Independent Claim
128 words
A method of improving the dimensional stability, crease resistance and surface appearance of fibers, fabrics and textile products of cotton, polyester-cotton blends, polyesters and polyester-synthetic blends, comprising applying to the fiber, fabric or textile product, to a level of 2-4% by weight of added solids, a resin obtained from reaction between (a) 30-35% by weight of phthalic or isophthalic acid, 50-55% by weight of polyether glycol of molecular weight 500-700, 8-12% by weight of neopentyl glycol and 2-5% by weight of trimethylolpropane heated at 120-130 degrees C to produce an intermediate having an acid number of 1-17 and from a further reaction of the thus-produced intermediate with (b) 3-6% by weight of trimellitic anhydride at 160-190 degrees C to produce the resin having an acid number of 1-50.
Claim 3
Dependent Claim
23 words
The method of claim 1, wherein the intermediate has an acid number of 13-17 and the resin has an acid number of 35-50.
Claim 4
Dependent Claim
12 words
The method of claim 1, wherein the polyethyer glycol is polyethylene glycol.
Claim 5
Dependent Claim
38 words
The method of claim 1, wherein the resin is obtained from 32-34% by weight of phthalic or isophthalic acid, 50-55% by weight of polyethylene glycol, 9-11% by weight of neopentyl glycol and 2-4% by weight of trimellitic anhydride.
Claim 6
Dependent Claim
23 words
The method of claim 4, wherein the intermediate has an acid number of 13-17 and the resin has an acid number of 35-50.
Claim 7
Dependent Claim
31 words
The method of claim 4, wherein the resin is obtained from isophthalic acid and the intermediate has an acid number of 13-17 and the resin has an acid number of 35-50.
Claim 8
Independent Claim
118 words
A method of improving the dimensional stability, crease resistance and surface appearance of fibers, fabrics and textile products of cotton, polyester-cotton blends, polyesters and polyester-synthetic blends, comprising applying to the fiber, fabric of textile product to a level of 2-4% by weight of added solids a resin obtained from reaction between (a) 1.4-1.8 moles of phthalic or isophthalic acid, 1.0-1.25 moles of at least one alkanoic acid of 10-20 carbon atoms and 2.0-2.4 moles of trimethylolpropane heated at 120-130 degrees C, to produce an acid number of 1-17 and from a further reaction of the thus-produced intermediate with (b) 0.4-0.5 moles of trimellitic anhydride at 160-190 degrees C to produce a resin having an acid number of 40-70.
Claim 9
Independent Claim
118 words
A method of improving the dimensional stability, crease resistance and surface appearance of fibers, fabrics and textile products of cotton, polyester-cotton blends, polyesters and polyester-synthetic blends, comprising applying to the fiber, fabric of textile product to a level of 2-4% by weight of added solids a resin obtained from reaction between (a) 1.4-1.8 moles of phthalic or isophthalic acid, 1.0-1.25 moles of at least one alkanoic acid of 10-20 carbon atoms and 2.0-2.4 moles of trimethylolpropane heated at 120-130 degrees C, to produce an acid number of 1-17 and from a further reaction of the thus-produced intermediate with (b) 0.4-0.5 moles of trimellitic anhydride at 160-190 degrees C to produce a resin having an acid number of 40-70.
Claim 10
Dependent Claim
23 words
The method of claim 7, wherein the intermediate has an acid number of 1-10 and the resin has an acid number of 50-65.
Claim 11
Dependent Claim
18 words
The method of claim 7, wherein the alkanoic acid is lauric acid, stearic acid or a mixture thereof.
Claim 12
Dependent Claim
33 words
The method of claim 7, wherein the resin is obtained from 1.5-1.7 moles of phthalic or isophthalic acid, 1.1-1.2 moles of alkanoic acid, 2.1-2.3 moles of trimethylolpropane and 0.45-0.5 moles of trimellitic anhydride.
Claim 13
Dependent Claim
23 words
The method of claim 10, wherein the intermediate has an acid number of 1-10 and the resin has an acid number of 50-65.
Claim 14
Dependent Claim
36 words
The method of claim 10, wherein the intermediate has an acid number of 1-10 and the resin has an acid number of 50-65 and the alkanoic acid is lauric acid, stearic acid, or a mixture thereof.
Claim 15
Dependent Claim
43 words
The method of claim 10, wherein the resin is obtained from isophthalic acid; the intermediate has an acid number of 1-10 and the resin has an acid number of 50-65; and the alkanoic acid is lauric acid, stearic acid or a mixture thereof.
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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) | 1983-09-30 | 1984-03-31 | 1984-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-30 | 1988-03-31 | 1988-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-30 | 1992-03-31 | 1992-09-30 | $7700.00 | Window Closed / Lapsed |