DE2116502A1 - Falschdrallgekräuseltes Polyester garn und Verfahren zu seiner Herstellung - Google Patents
Falschdrallgekräuseltes Polyester garn und Verfahren zu seiner HerstellungInfo
- Publication number
- DE2116502A1 DE2116502A1 DE19712116502 DE2116502A DE2116502A1 DE 2116502 A1 DE2116502 A1 DE 2116502A1 DE 19712116502 DE19712116502 DE 19712116502 DE 2116502 A DE2116502 A DE 2116502A DE 2116502 A1 DE2116502 A1 DE 2116502A1
- Authority
- DE
- Germany
- Prior art keywords
- yarn
- yarns
- polyester
- false twist
- twist
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 229920000728 polyester Polymers 0.000 title claims description 90
- 238000000034 method Methods 0.000 title claims description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 230000008569 process Effects 0.000 title description 7
- 238000009998 heat setting Methods 0.000 claims description 8
- 230000010181 polygamy Effects 0.000 claims 1
- 238000004043 dyeing Methods 0.000 description 32
- 238000012545 processing Methods 0.000 description 21
- 238000010438 heat treatment Methods 0.000 description 19
- 238000002788 crimping Methods 0.000 description 17
- 239000000975 dye Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000002425 crystallisation Methods 0.000 description 11
- 230000008025 crystallization Effects 0.000 description 11
- 238000004040 coloring Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 230000000704 physical effect Effects 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 5
- -1 polyethylene terephthalate Polymers 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- QMKYBPDZANOJGF-UHFFFAOYSA-N benzene-1,3,5-tricarboxylic acid Chemical compound OC(=O)C1=CC(C(O)=O)=CC(C(O)=O)=C1 QMKYBPDZANOJGF-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- YPFDHNVEDLHUCE-UHFFFAOYSA-N propane-1,3-diol Chemical compound OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000010186 staining Methods 0.000 description 2
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 1
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- MMINFSMURORWKH-UHFFFAOYSA-N 3,6-dioxabicyclo[6.2.2]dodeca-1(10),8,11-triene-2,7-dione Chemical group O=C1OCCOC(=O)C2=CC=C1C=C2 MMINFSMURORWKH-UHFFFAOYSA-N 0.000 description 1
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical compound C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 description 1
- 101100434846 Caenorhabditis elegans lap-1 gene Proteins 0.000 description 1
- 229920001634 Copolyester Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920004934 Dacron® Polymers 0.000 description 1
- 235000003403 Limnocharis flava Nutrition 0.000 description 1
- 244000278243 Limnocharis flava Species 0.000 description 1
- 101100216020 Mus musculus Anpep gene Proteins 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- ORLQHILJRHBSAY-UHFFFAOYSA-N [1-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1(CO)CCCCC1 ORLQHILJRHBSAY-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- NJBYKVMTNHHDJE-UHFFFAOYSA-N heptane;tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl.CCCCCCC NJBYKVMTNHHDJE-UHFFFAOYSA-N 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- QQVIHTHCMHWDBS-UHFFFAOYSA-L isophthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC(C([O-])=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-L 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0286—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist characterised by the use of certain filaments, fibres or yarns
-
- 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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
- D02G1/022—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting while simultaneously drawing the yarn
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Artificial Filaments (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2923670 | 1970-04-06 | ||
| NL7113594A NL7113594A (en) | 1970-04-06 | 1971-10-04 | Mfg false twisted or modified false twisted polyester yarns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2116502A1 true DE2116502A1 (de) | 1971-10-21 |
Family
ID=36951532
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712116502 Ceased DE2116502A1 (de) | 1970-04-06 | 1971-04-05 | Falschdrallgekräuseltes Polyester garn und Verfahren zu seiner Herstellung |
| DE19712166906 Pending DE2166906A1 (de) | 1970-04-06 | 1971-04-05 | Falschdrallgekraeuseltes polyestergarn |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712166906 Pending DE2166906A1 (de) | 1970-04-06 | 1971-04-05 | Falschdrallgekraeuseltes polyestergarn |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3797221A (enExample) |
| CA (1) | CA945844A (enExample) |
| CH (1) | CH525298A (enExample) |
| DE (2) | DE2116502A1 (enExample) |
| FR (1) | FR2089237A5 (enExample) |
| GB (1) | GB1333679A (enExample) |
| HK (1) | HK7877A (enExample) |
| MY (1) | MY7700177A (enExample) |
| NL (1) | NL7113594A (enExample) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4867533A (enExample) * | 1971-12-20 | 1973-09-14 | ||
| JPS4955919A (enExample) * | 1972-09-29 | 1974-05-30 | ||
| JPS49134926A (enExample) * | 1973-05-09 | 1974-12-25 | ||
| JPS50111315A (enExample) * | 1971-08-24 | 1975-09-02 | Du Pont | |
| JPS5167423A (en) * | 1971-08-24 | 1976-06-11 | Du Pont | Tekusuchayaanno seizoho |
| DE2626115A1 (de) * | 1975-06-11 | 1976-12-30 | Toray Industries | Texturierte polyester-garne und verfahren zu deren herstellung |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3936999A (en) * | 1970-04-06 | 1976-02-10 | Teijin Ltd. | False twist-crimped polyester yarns production |
| DE2211843A1 (de) * | 1972-03-11 | 1973-09-20 | Hoechst Ag | Verwendung unverstreckter polyaethylenterephthalatfaeden |
| DD104328A1 (enExample) * | 1972-06-28 | 1974-03-05 | ||
| JPS4936921A (enExample) * | 1972-08-17 | 1974-04-05 | ||
| DE2254998B2 (de) * | 1972-11-10 | 1975-07-10 | Barmag Barmer Maschinenfabrik Ag, 5600 Wuppertal | Verfahren zur Herstellung von Kord aus Chemiefasern |
| JPS5327387B2 (enExample) * | 1973-12-05 | 1978-08-08 | ||
| DE2623904A1 (de) * | 1976-05-28 | 1977-12-15 | Metallgesellschaft Ag | Textilmaterial aus synthetischem garn |
| US4296058A (en) * | 1978-10-23 | 1981-10-20 | Celanese Corporation | Process for enhancing the uniformity of dye uptake of false twist texturized polyethylene terephthalate fibrous materials |
| JPS5777333A (en) * | 1980-10-30 | 1982-05-14 | Kanebo Ltd | Production of extensible polyester yarn |
| DE3115759A1 (de) * | 1981-04-18 | 1982-11-04 | Hoechst Ag, 6000 Frankfurt | "verfahren zur herstellung von texturiertem profilgarn und die dabei erhaltenen garne" |
| US4539805A (en) * | 1982-02-19 | 1985-09-10 | Asahi Kasei Kogyo Kabushiki Kaisha | Process and apparatus for producing easily dyeable polyester false-twisted yarns |
| US5308564A (en) * | 1986-10-31 | 1994-05-03 | E. I. Du Pont De Nemours And Company | Polyester fiber process |
| US5234645A (en) * | 1986-10-31 | 1993-08-10 | E. I. Du Pont De Nemours And Company | Polyester fiber process |
| US5313776A (en) * | 1987-11-17 | 1994-05-24 | Rhone-Poulenc Viscosuisse Sa | Process for manufacturing an elastic bulk yarn |
| US20230295841A1 (en) * | 2020-08-19 | 2023-09-21 | Hyosung TNC Corporation | Polyester yarn and method for manufacturing same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB746992A (en) * | 1953-04-16 | 1956-03-21 | Heberlein & Co Ag | Improvements in or relating to a process and device for the manufacture of permanently crimped or waved yarn from fully synthetic organic textile fibres |
| GB777625A (en) * | 1955-01-28 | 1957-06-26 | Ici Ltd | Process for the manufacture of improved yarns |
| US2980492A (en) * | 1958-05-27 | 1961-04-18 | Du Pont | Process for preparing textile yarns |
| US3587220A (en) * | 1967-09-13 | 1971-06-28 | Ici Ltd | Differential shrinkage yarn and fabric made therefrom |
| US3458986A (en) * | 1968-04-12 | 1969-08-05 | Eastman Kodak Co | Composite yarn |
| GB1274854A (en) * | 1968-07-12 | 1972-05-17 | Ici Ltd | Improvements in or relating to the drawing and bulking of synthetic filament yarns |
| US3534541A (en) * | 1969-07-15 | 1970-10-20 | Du Pont | Crimped yarn and process of making same |
-
1971
- 1971-04-05 DE DE19712116502 patent/DE2116502A1/de not_active Ceased
- 1971-04-05 US US00131242A patent/US3797221A/en not_active Expired - Lifetime
- 1971-04-05 DE DE19712166906 patent/DE2166906A1/de active Pending
- 1971-04-06 CH CH497571A patent/CH525298A/de not_active IP Right Cessation
- 1971-04-06 FR FR7112077A patent/FR2089237A5/fr not_active Expired
- 1971-04-06 CA CA109,769A patent/CA945844A/en not_active Expired
- 1971-04-19 GB GB2636471*A patent/GB1333679A/en not_active Expired
- 1971-10-04 NL NL7113594A patent/NL7113594A/xx not_active Application Discontinuation
-
1977
- 1977-02-10 HK HK78/77A patent/HK7877A/xx unknown
- 1977-12-30 MY MY177/77A patent/MY7700177A/xx unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50111315A (enExample) * | 1971-08-24 | 1975-09-02 | Du Pont | |
| JPS5167423A (en) * | 1971-08-24 | 1976-06-11 | Du Pont | Tekusuchayaanno seizoho |
| JPS4867533A (enExample) * | 1971-12-20 | 1973-09-14 | ||
| JPS4955919A (enExample) * | 1972-09-29 | 1974-05-30 | ||
| JPS49134926A (enExample) * | 1973-05-09 | 1974-12-25 | ||
| DE2626115A1 (de) * | 1975-06-11 | 1976-12-30 | Toray Industries | Texturierte polyester-garne und verfahren zu deren herstellung |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1333679A (en) | 1973-10-10 |
| US3797221A (en) | 1974-03-19 |
| CA945844A (en) | 1974-04-23 |
| DE2166906A1 (de) | 1976-06-24 |
| MY7700177A (en) | 1977-12-31 |
| HK7877A (en) | 1977-02-17 |
| NL7113594A (en) | 1973-04-06 |
| FR2089237A5 (enExample) | 1972-01-07 |
| CH525298A (de) | 1972-03-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8131 | Rejection |