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US3632422A Expired / Lapsed US ⏱️ 0.0 years remaining

Textile fabric having soil release finish and method of making same

Assignee: Burlington Industries Inc
•
Filing: 1969-12-04
•
Granted: 1972-01-04
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Expires: 1989-12-04
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Abstract

Abstract The durability and hand of a soil release finish on a textile are improved by adding a plasticizer to it. The finish is a water insoluble but highly water swellable polymer, i.e., one which absorbs at least 550 percent by weight of water when immersed for 2 minutes in an aqueous detergent solution at 140* F.

Inventors

  • 👤 Allison Maggiolo
  • 👤 Everett H Hinton Jr
  • 👤 Ray S Smith

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 20:09
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31938; Y10T442/00; Y10T442/20; Y10T442/2279

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 34 words
A textile as set forth in claim 1 in which said polymer absorbs at least 1000 percent by weight of water when immersed in an aqueous detergent solution for 2 minutes at 140* F.
Claim 2
Dependent Claim 21 words
A textile as set forth in claim 1 in which said polymer is an addition polymer of an ethylenically unsaturated acid.
Claim 3
Dependent Claim 26 words
A textile as set forth in claim 3 in which said acid is selected from the group consisting of acrylic acid, methacrylic acid and maleic acid.
Claim 4
Dependent Claim 15 words
A textile as set forth in claim 1 in which said polymer is polyacrylic acid.
Claim 5
Dependent Claim 20 words
A textile as set forth in claim 1 in which said polymer is a copolymer of styrene and acrylic acid.
Claim 6
Dependent Claim 21 words
A textile as set forth in claim 1 in which said polymer is a copolymer of ethyl acrylate and methacrylic acid.
Claim 7
Dependent Claim 21 words
A textile as set forth in claim 1 in which said polymer is a terpolymer of butadiene, methacrylic acid and styrene.
Claim 8
Dependent Claim 23 words
A textile as set forth in claim 1 in which said polymer is a terpolymer of divinyl benzene, methacrylic acid and ethyl acrylate.
Claim 9
Dependent Claim 30 words
A textile as set forth in claim 1 in which the amount of said polymer is about 0.5 to 10 percent based on the weight of textile fibers or filaments.
Claim 10
Dependent Claim 27 words
A textile as set forth in claim 1 in which the quantity of said plasticizer is 20 to 250 percent based on the weight of said polymer.
Claim 11
Dependent Claim 128 words
A textile according to claim 1 having improved soil release properties comprising textile filaments or fibers coated with about 0.5 to 10 percent, based on the weight of filaments or fibers of a water insoluble synthetic polymer which absorbs at least 550 percent by weight of water when immersed for 2 minutes at 140* F. in an aqueous detergent solution having a pH of about 8 to 12, said synthetic polymer being selected from the group consisting of polyacrylic acid, copolymer of styrene and acrylic acid, a copolymer of ethylacrylate and methacrylic acid, a terpolymer of butadiene, methacrylic acid and styrene and a terpolymer of divinyl benzene, methacrylic acid and ethyl acrylate and 20 to 250 percent by weight of said polymer of a plasticizer for said polymer.
Claim 12
Dependent Claim 16 words
A textile according to claim 1 wherein said textile material is a fabric comprising polyester fibers.
Claim 13
Dependent Claim 13 words
A textile according to claim 13 wherein said fabric is 100 percent polyester.
Claim 14
Dependent Claim 17 words
A textile according to claim 13 wherein said fabric comprises a blend of polyester and cellulosic fibers.
Claim 15
Dependent Claim 23 words
A textile according to claim 1 wherein the plasticizer is a trialkyl trimellitate having eight to 10 carbon atoms in the alkyl group.
Claim 16
Dependent Claim 12 words
A textile according to claim 16 wherein the trimellitate is triisodecyl trimellitate.
Claim 17
Dependent Claim 18 words
A textile according to claim 17 wherein the polymer is a copolymer of ethyl acrylate and methacrylate acid.
Claim 18
Dependent Claim 28 words
A textile according to claim 1 wherein the plasticizer is ethoxylated phenyl stearic acid having 8 to 23 moles of ethylene oxide per mole of phenyl stearic acid.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-01-03 1975-07-05 1976-01-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-01-03 1979-07-05 1980-01-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-01-03 1983-07-05 1984-01-04 $7700.00 Window Closed / Lapsed

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