US2018119310A1PendingUtilityA1
Synthetic fibers with enhanced soil resistance and methods for production and use thereof
Est. expiryMay 5, 2035(~8.8 yrs left)· nominal 20-yr term from priority
Inventors:Mansour Abdulbaki
D01F 6/62D01F 6/04D01D 5/253D01F 6/44D01F 6/88D01F 1/10D01F 6/60
22
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Claims
Abstract
Synthetic fibers with enhanced soil resistance, yarns and carpets prepared from these fibers and compounds and methods for their production are provided.
Claims
exact text as granted — not AI-modified1 . A synthetic fiber comprising:
a) a first fiber forming polymer; and b) a soil resistance-affecting additive present in the fiber at a range from about 0.1 to 10 percent by weight.
2 . The synthetic fiber of claim 1 wherein at least a portion of the soil resistance-affecting additive is present on the surface of the fiber.
3 . (canceled)
4 . (canceled)
5 . The synthetic fiber of claim 1 wherein at least a portion of the soil resistance-affecting additive has bloomed to the surface of the fiber.
6 . (canceled)
7 . The synthetic fiber of claim 1 , wherein the fiber has a multilobal cross section and at least 75 percent by weight of the soil resistance-affecting additive present on the surface of the fiber is located in the area between the lobes.
8 . (canceled)
9 . The synthetic fiber of claim 1 wherein the first fiber forming polymer is selected from the group consisting of a polyamide, a polyester, and a polyolefin, and combinations thereof.
10 . (canceled)
11 . The synthetic fiber of claim 5 wherein the polyester is selected from the group consisting of polyethylene terephthalate, polypropylene terephthalate and polybutylene terephthalate, and combinations thereof.
12 . The synthetic fiber of claim 1 wherein the soil resistance-affecting additive is an aromatic sulfonate or an alkali metal salt thereof.
13 . (canceled)
14 . (canceled)
15 . A yarn formed from the synthetic fiber of claim 1 .
16 . A carpet formed from the yarn of claim 15 .
17 . A fabric formed from the synthetic fiber of claim 1 .
18 . A synthetic fiber of claim 1 further comprising:
(a) a first fiber forming polymer present in a range from about 80 to 99 percent by weight;
(b) a second polymer present in a range from about 0.2 to 10 percent by weight; and
(c) a soil resistance-affecting additive present in the fiber at a range from about 0.1 to 10 percent by weight.
19 . (canceled)
20 . (canceled)
21 . (cancelled)
22 . (cancelled)
23 . (cancelled)
24 . (cancelled)
25 . The synthetic fiber of claim 11 wherein the second polymer has a melting point which is less than the melting point of the first fiber forming polymer.
26 . The synthetic fiber of claim 11 wherein the presence of the second polymer does not cause the synthetic fiber to fibrillate.
27 . (canceled)
28 . (canceled)
29 . The synthetic fiber of claim 18 wherein the second polymer is selected from the group consisting of a polyolefin, a polylactic acid and a polystyrene, and combinations thereof.
30 . The synthetic fiber of claim 18 wherein the second polymer is an unmodified polyolefin.
31 . The synthetic fiber of claim 18 wherein the second polymer is polypropylene.
32 . (canceled)
33 . (canceled)
34 . (canceled)
35 . A yarn formed from the synthetic fiber of claim 11 .
36 . A carpet formed from the yarn of claim 17 .
37 . A fabric formed from the synthetic fiber of claim 11 .
38 . A process for forming a synthetic fiber, said process comprising the steps of:
a) forming a polymer melt comprising a first fiber forming polymer and a masterbatch compound, wherein the masterbatch compound comprises a second polymer and a soil resistance-affecting additive, and wherein the first fiber forming polymer is present in a range from about 80 to 99 percent by weight, and the masterbatch compound is present in a range from about 0.2 to 20 percent by weight; and b) forming a synthetic fiber from the polymer melt.
39 . (canceled)
40 . (canceled)
41 . (canceled)
42 . (canceled)
43 . (canceled)
44 . (canceled)
45 . (canceled)
46 . (canceled)
47 . The process of claim 20 wherein the second polymer is present in the masterbatch compound in a range from about 20 to 80 percent by weight.
48 . The process of claim 20 wherein the second polymer is selected from the group consisting of a polyolefin, a polylactic acid and a polystyrene, and combinations thereof.
49 . The process of claim 20 wherein the second polymer is an unmodified polyolefin.
50 . The process of claim 20 wherein the second polymer is polypropylene.
51 . The process of claim 20 wherein the first fiber forming polymer is selected from the group consisting of a polyamide, a polyester, and a polyolefin, and combinations thereof.
52 . (canceled)
53 . The process of claim 20 wherein the soil resistance-affecting additive is present in the masterbatch compound in a range from about 20 to 80 percent by weight.
54 . (canceled)
55 . (canceled)
56 . (canceled)
57 . A synthetic fiber formed from the process of claim 38 .
58 . A fabric formed from the synthetic fiber of claim 27 .
59 . A yarn formed from the synthetic fiber of claim 27 .
60 . A carpet formed from the yarn of claim 29 .Join the waitlist — get patent alerts
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