Patent US4113794A successfully refreshed from Google Patents.
US4113794A
Expired / Lapsed
US
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Copolymer of blocks of random poly(dioxa-amide) and polyamide
Assignee: Sun Ventures Inc
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Filing: 1977-03-16
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Granted: 1978-09-12
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Expires: 1997-03-16
Abstract
Abstract Novel copolymer formed by melt blending a melt spinnable polyamide, such as nylon-6, and a block of random poly(dioxa-amide), such as a copolymer prepared from the mixture of caprolactam and the salt of adipic acid and 4,7-dioxadecamethylene diamine, is disclosed. The resulting copolymer, N-30203-6/6//6, has utility as a fiber. The fiber, for example, resulting from melt blending of nylon-6 and the aforementioned random poly(dioxa-amide) has moisture absorption characteristics similar to that of cotton. Furthermore, the resulting fiber still maintains the other desirable properties of the major constituent, for example, nylon-6.
Inventors
- 👤 Robert M. Thompson
- 👤 Richard S. Stearns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:33
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/78; D01F6/82; C; C08; C08G; C08G69/00; C08G69/40
Claims Analysis
Total Claims: 64
Claim 1
Independent Claim
185 words
A copolymer having a molecular weight of about 5000-100,000 and the following two components: (a) a block component consisting of the following groups: ##STR16## and ##STR17## and one of the following: ##STR18## wherein the relative proportions of each are n = 1-10, m = 1-10, p = 0-10 and q = 0-10 and said groups within the block are randomized and wherein the ##STR19## and the ##STR20## form an amide linkage; and wherein R 1 ; R 2 and R 3 are selected from the group consisting of H, C 1 -C 14 alkyls and C 3 -C 10 isoalkyls; R 4 is selected from the group consisting of C 1 -C 10 alkylenes and C 3 -C 10 isoalkylenes; R 5 is selected from the group consisting of C 0 -C 10 alkylenes, C 3 -C 10 isoalkylenes and C 6 -C 10 arylenes; R 6 and R 7 are selected from the group consisting of C 5 -C 11 alkylenes; and wherein said block has a molecular weight of about 350-80,000; (b) and a block component consisting of ##STR21## wherein z = 4-200.
Claim 2
Dependent Claim
185 words
A copolymer having a molecular weight of about 5000-100,000 and the following two components: (a) a block component consisting of the following groups: ##STR16## and ##STR17## and one of the following: ##STR18## wherein the relative proportions of each are n = 1-10, m = 1-10, p = 0-10 and q = 0-10 and said groups within the block are randomized and wherein the ##STR19## and the ##STR20## form an amide linkage; and wherein R 1 ; R 2 and R 3 are selected from the group consisting of H, C 1 -C 14 alkyls and C 3 -C 10 isoalkyls; R 4 is selected from the group consisting of C 1 -C 10 alkylenes and C 3 -C 10 isoalkylenes; R 5 is selected from the group consisting of C 0 -C 10 alkylenes, C 3 -C 10 isoalkylenes and C 6 -C 10 arylenes; R 6 and R 7 are selected from the group consisting of C 5 -C 11 alkylenes; and wherein said block has a molecular weight of about 350-80,000; (b) and a block component consisting of ##STR21## wherein z = 4-200.
Claim 3
Dependent Claim
11 words
A copolymer according to claim 1 wherein the polymer is hydrophilic.
Claim 4
Dependent Claim
24 words
A copolymer according to claim 2 wherein the polymer has a percent moisture regain of at least 4% at a relative humidity of 65%.
Claim 5
Dependent Claim
24 words
A copolymer according to claim 1 wherein the bivalent radical polyamide is selected from the group consisting of the following: nylon-6; nylon-6,6 and PACM-12.
Claim 6
Dependent Claim
21 words
A copolymer according to claim 4 wherein the weight ratio of components (a) and (b) is such that a/b = 0.10-1.25.
Claim 7
Dependent Claim
11 words
A copolymer according to claim 5 wherein the polymer is hydrophilic.
Claim 8
Dependent Claim
24 words
A copolymer according to claim 6 wherein the polymer has a percent moisture regain of at least 4% at a relative humidity of 65%.
Claim 9
Dependent Claim
30 words
A copolymer according to claim 7 wherein R 1 , R 2 and R 3 are selected from the group consisting of H and C 1 -C 5 are alkyls.
Claim 10
Dependent Claim
16 words
A copolymer according to claim 8 wherein R 4 is a C 1 -C 5 alkylene.
Claim 11
Dependent Claim
18 words
A copolymer according to claim 9 wherein R 5 and R 6 are C 5 -C 8 alkylenes.
Claim 12
Dependent Claim
13 words
A copolymer according to claim 10 wherein the melt spinnable polyamide is nylon-6.
Claim 13
Dependent Claim
10 words
A fiber obtained by spinning the copolymer of claim 1.
Claim 14
Dependent Claim
10 words
A fiber obtained by spinning the copolymer of claim 3.
Claim 15
Dependent Claim
10 words
A fiber obtained by spinning the copolymer of claim 9.
Claim 16
Dependent Claim
10 words
A fiber obtained by spinning the copolymer of claim 11.
Claim 17
Dependent Claim
11 words
A fiber obtained by melt spinning the copolymer of claim 1.
Claim 18
Dependent Claim
11 words
A fiber obtained by melt spinning the copolymer of claim 3.
Claim 19
Dependent Claim
11 words
A fiber obtained by melt spinning the copolymer of claim 9.
Claim 20
Dependent Claim
11 words
A fiber obtained by melt spinning the copolymer of claim 11.
Claim 21
Dependent Claim
10 words
A monofilament obtained by extruding the copolymer of claim 1.
Claim 22
Dependent Claim
10 words
A monofilament obtained by extruding the copolymer of claim 3.
Claim 23
Dependent Claim
10 words
A monofilament obtained by extruding the copolymer of claim 9.
Claim 24
Dependent Claim
10 words
A monofilament obtained by extruding the copolymer of claim 11.
Claim 25
Dependent Claim
12 words
A yarn obtained by twisting fibers of the copolymer of claim 1.
Claim 26
Dependent Claim
12 words
A yarn obtained by twisting fibers of the copolymer of claim 3.
Claim 27
Dependent Claim
12 words
A yarn obtained by twisting fibers of the copolymer of claim 9.
Claim 28
Dependent Claim
12 words
A yarn obtained by twisting fibers of the copolymer of claim 11.
Claim 29
Dependent Claim
12 words
A fabric obtained by weaving yarn of the copolymer of claim 1.
Claim 30
Dependent Claim
12 words
A fabric obtained by weaving yarn of the copolymer of claim 3.
Claim 31
Dependent Claim
12 words
A fabric obtained by weaving yarn of the copolymer of claim 9.
Claim 32
Dependent Claim
12 words
A fabric obtained by weaving yarn of the copolymer of claim 11.
Claim 33
Dependent Claim
12 words
A fabric obtained by knitting yarn of the copolymer of claim 1.
Claim 34
Dependent Claim
12 words
A fabric obtained by knitting yarn of the copolymer of claim 3.
Claim 35
Dependent Claim
12 words
A fabric obtained by knitting yarn of the copolymer of claim 9.
Claim 36
Dependent Claim
12 words
A fabric obtained by knitting yarn of the copolymer of claim 11.
Claim 37
Dependent Claim
12 words
A fabric obtained by knitting monofilament of the copolymer of claim 1.
Claim 38
Dependent Claim
12 words
A fabric obtained by knitting monofilament of the copolymer of claim 3.
Claim 39
Dependent Claim
12 words
A fabric obtained by knitting monofilament of the copolymer of claim 9.
Claim 40
Dependent Claim
12 words
A fabric obtained by knitting monofilament of the copolymer of claim 11.
Claim 41
Dependent Claim
11 words
A nonwoven fabric obtained by laminating the copolymer of claim 1.
Claim 42
Dependent Claim
11 words
A nonwoven fabric obtained by laminating the copolymer of claim 3.
Claim 43
Dependent Claim
11 words
A nonwoven fabric obtained by laminating the copolymer of claim 9.
Claim 44
Dependent Claim
11 words
A nonwoven fabric obtained by laminating the copolymer of claim 11.
Claim 45
Dependent Claim
8 words
A fiber comprising the polymer of claim 1.
Claim 46
Dependent Claim
8 words
A fiber comprising the polymer of claim 3.
Claim 47
Dependent Claim
8 words
A fiber comprising the polymer of claim 9.
Claim 48
Dependent Claim
8 words
A fiber comprising the polymer of claim 11.
Claim 49
Dependent Claim
8 words
A monofilament comprising the polymer of claim 1.
Claim 50
Dependent Claim
8 words
A monofilament comprising the polymer of claim 3.
Claim 51
Dependent Claim
8 words
A monofilament comprising the polymer of claim 9.
Claim 52
Dependent Claim
8 words
A monofilament comprising the polymer of claim 11.
Claim 53
Dependent Claim
8 words
A yarn comprising the polymer of claim 1.
Claim 54
Dependent Claim
8 words
A yarn comprising the polymer of claim 3.
Claim 55
Dependent Claim
8 words
A yarn comprising the polymer of claim 9.
Claim 56
Dependent Claim
8 words
A yarn comprising the polymer of claim 11.
Claim 57
Dependent Claim
8 words
A fabric comprising the polymer of claim 1.
Claim 58
Dependent Claim
8 words
A fabric comprising the polymer of claim 3.
Claim 59
Dependent Claim
8 words
A fabric comprising the polymer of claim 9.
Claim 60
Dependent Claim
8 words
A fabric comprising the polymer of claim 11.
Claim 61
Dependent Claim
9 words
A nonwoven fabric comprising the polymer of claim 1.
Claim 62
Dependent Claim
9 words
A nonwoven fabric comprising the polymer of claim 3.
Claim 63
Dependent Claim
9 words
A nonwoven fabric comprising the polymer of claim 9.
Claim 64
Dependent Claim
9 words
A nonwoven fabric comprising the polymer of claim 11.
References Cited (Backward Citations)
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GB562370A
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GB615954A
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GB1030344A
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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) | 1981-09-11 | 1982-03-13 | 1982-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-11 | 1986-03-13 | 1986-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-11 | 1990-03-13 | 1990-09-12 | $7700.00 | Window Closed / Lapsed |