IE33357L - Self-crimpable polyamide fibres - Google Patents
Self-crimpable polyamide fibresInfo
- Publication number
- IE33357L IE33357L IE691466A IE146669A IE33357L IE 33357 L IE33357 L IE 33357L IE 691466 A IE691466 A IE 691466A IE 146669 A IE146669 A IE 146669A IE 33357 L IE33357 L IE 33357L
- Authority
- IE
- Ireland
- Prior art keywords
- components
- filaments
- component
- fibres
- trans
- Prior art date
Links
- 239000004952 Polyamide Substances 0.000 title abstract 3
- 229920002647 polyamide Polymers 0.000 title abstract 3
- 239000002131 composite material Substances 0.000 abstract 3
- 239000000470 constituent Substances 0.000 abstract 3
- 229920001577 copolymer Polymers 0.000 abstract 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 2
- 230000001464 adherent effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 238000002074 melt spinning Methods 0.000 abstract 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Multicomponent Fibers (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
1,272,236. Self-crimpable composite polyamide fibres. E. I. DU PONT DE NEMOURS & CO. 12 Nov., 1969 [14 Nov., 1968], No. 55427/69. Heading B5B. [Also in Division C3] Self-crimpable composite fibres or filaments are comprised of at least two continuous adherent, longitudinally extending, eccentrically positioned synthetic polyamide components of different composition and shrinkage characteristics, each component being comprised of at least 50 mole per cent of at least one type of recurring units of the formula wherein x is 1 or 2, the symbols R which may be the same or different, represent hydrogen atoms and/or methyl groups, Y is 8-14 and S indicates a saturated ring, at least 40% by weight of the diamino constituent of the recurring units of the above formula being of a trans-trans stereoisomeric configuration and at least one of the components being a copolymer. Preferably the fibres or filaments consist of two components, x is 1 and R is hydrogen. At least one of the two components may consist essentially of recurring units of Formula (I). In this case at least 5% by weight of the diamino constitutents of one of the components may differ in stereoisomeric configuration from the diamino constituent in the other component. The trans-trans diamino constituent isomer content in one of the components (where two components are present) may be at least 10% lower than in the other component. In two component filaments one of the components may be a copolymer comprised of 50 to 95, preferably 70 to 90, mole per cent of at least one type of recurring unit of Formula (I). The components of two-component fibres or filaments may have a difference in shrinkability of 4-65%. In two component fibres or filaments one of the components may comprise 30-70% by weight of the filament. The composite filaments may be formed by melt-spinning in the usual manner, converged into a yarn, drawn at a draw ratio of up to 3.0 while passing round a heating element maintained at 120 C. and passed through a pressured jet at 120 C. to separate the filaments and produce a randomly crimped yarn.
[GB1272236A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US77567868A | 1968-11-14 | 1968-11-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE33357L true IE33357L (en) | 1970-05-14 |
| IE33357B1 IE33357B1 (en) | 1974-05-29 |
Family
ID=25105155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE1466/69A IE33357B1 (en) | 1968-11-14 | 1969-10-28 | Self-crimpable synthetic polyamide composite fibers |
Country Status (10)
| Country | Link |
|---|---|
| BE (1) | BE741354A (en) |
| CA (1) | CA938069A (en) |
| CH (1) | CH509422A (en) |
| DE (1) | DE1957431A1 (en) |
| FR (1) | FR2023301A1 (en) |
| GB (1) | GB1272236A (en) |
| IE (1) | IE33357B1 (en) |
| IL (1) | IL33257A (en) |
| LU (1) | LU59806A1 (en) |
| NL (1) | NL6916619A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4097469A (en) * | 1976-04-15 | 1978-06-27 | Phillips Petroleum Company | Process for preparing polyamides of PACP |
| TWI727738B (en) * | 2020-04-14 | 2021-05-11 | 中國石油化學工業開發股份有限公司 | Transparent copolyamide and the preparing method thereof |
-
1969
- 1969-10-27 IL IL33257A patent/IL33257A/en unknown
- 1969-10-27 CA CA065990A patent/CA938069A/en not_active Expired
- 1969-10-28 IE IE1466/69A patent/IE33357B1/en unknown
- 1969-11-04 NL NL6916619A patent/NL6916619A/xx unknown
- 1969-11-06 BE BE741354D patent/BE741354A/xx unknown
- 1969-11-10 CH CH1670969A patent/CH509422A/en not_active IP Right Cessation
- 1969-11-12 GB GB55427/69A patent/GB1272236A/en not_active Expired
- 1969-11-12 LU LU59806D patent/LU59806A1/xx unknown
- 1969-11-14 DE DE19691957431 patent/DE1957431A1/en active Pending
- 1969-11-14 FR FR6939277A patent/FR2023301A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| IL33257A0 (en) | 1969-12-31 |
| LU59806A1 (en) | 1970-01-13 |
| CA938069A (en) | 1973-12-11 |
| NL6916619A (en) | 1970-05-19 |
| IL33257A (en) | 1973-05-31 |
| DE1957431A1 (en) | 1970-06-11 |
| CH509422A (en) | 1971-06-30 |
| IE33357B1 (en) | 1974-05-29 |
| GB1272236A (en) | 1972-04-26 |
| BE741354A (en) | 1970-04-16 |
| FR2023301A1 (en) | 1970-08-07 |
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