WO1983002465A1 - Process for producing fire-retarded cellulosic fibres - Google Patents
Process for producing fire-retarded cellulosic fibres Download PDFInfo
- Publication number
- WO1983002465A1 WO1983002465A1 PCT/FI1982/000071 FI8200071W WO8302465A1 WO 1983002465 A1 WO1983002465 A1 WO 1983002465A1 FI 8200071 W FI8200071 W FI 8200071W WO 8302465 A1 WO8302465 A1 WO 8302465A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blend
- polymer
- cellulose
- chlorous
- fibres
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 85
- 229920002678 cellulose Polymers 0.000 claims abstract description 67
- 239000001913 cellulose Substances 0.000 claims abstract description 67
- 229920000642 polymer Polymers 0.000 claims abstract description 67
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims abstract description 48
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 28
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 24
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims abstract description 12
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920002689 polyvinyl acetate Polymers 0.000 claims abstract description 8
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 229940117958 vinyl acetate Drugs 0.000 claims abstract description 7
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims abstract description 4
- 239000005033 polyvinylidene chloride Substances 0.000 claims abstract description 4
- 239000003960 organic solvent Substances 0.000 claims abstract description 3
- 229940073577 lithium chloride Drugs 0.000 claims abstract 6
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 20
- 239000002904 solvent Substances 0.000 claims description 11
- 239000002244 precipitate Substances 0.000 abstract description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 43
- 239000003063 flame retardant Substances 0.000 description 16
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 14
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- -1 brome- Chemical compound 0.000 description 7
- 229960001760 dimethyl sulfoxide Drugs 0.000 description 7
- 239000004753 textile Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 229920000297 Rayon Polymers 0.000 description 6
- 229920002866 paraformaldehyde Polymers 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000009987 spinning Methods 0.000 description 5
- 229920003043 Cellulose fiber Polymers 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 3
- 150000002825 nitriles Chemical class 0.000 description 3
- 229920002959 polymer blend Polymers 0.000 description 3
- KKEBXNMGHUCPEZ-UHFFFAOYSA-N 4-phenyl-1-(2-sulfanylethyl)imidazolidin-2-one Chemical compound N1C(=O)N(CCS)CC1C1=CC=CC=C1 KKEBXNMGHUCPEZ-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 235000018185 Betula X alpestris Nutrition 0.000 description 2
- 235000018212 Betula X uliginosa Nutrition 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- WFPZPJSADLPSON-UHFFFAOYSA-N dinitrogen tetraoxide Chemical compound [O-][N+](=O)[N+]([O-])=O WFPZPJSADLPSON-UHFFFAOYSA-N 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000004079 fireproofing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 2
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- 229920002101 Chitin Polymers 0.000 description 1
- 239000004801 Chlorinated PVC Substances 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- 229940048053 acrylate Drugs 0.000 description 1
- 229940114077 acrylic acid Drugs 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- ZRIUUUJAJJNDSS-UHFFFAOYSA-N ammonium phosphates Chemical class [NH4+].[NH4+].[NH4+].[O-]P([O-])([O-])=O ZRIUUUJAJJNDSS-UHFFFAOYSA-N 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical group BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- MCWXGJITAZMZEV-UHFFFAOYSA-N dimethoate Chemical compound CNC(=O)CSP(=S)(OC)OC MCWXGJITAZMZEV-UHFFFAOYSA-N 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007775 late Effects 0.000 description 1
- 230000003505 mutagenic effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 150000003003 phosphines Chemical class 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 229940080818 propionamide Drugs 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 108700012359 toxins Proteins 0.000 description 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical class [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 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
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/02—Cellulose; Modified cellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/18—Homopolymers or copolymers of nitriles
- C08L33/20—Homopolymers or copolymers of acrylonitrile
Definitions
- the present invention relates to a process for producing fire-retarded blended fibres of cellulose and chlorous polymers.
- Cellulose fibres such as cotton or viscose, are as such highly inflammable and burn fast.
- the combustibility of textiles primarily the extinction properties, can be described by their LOI value (Limiting Oxygen Index).
- LOI value Liting Oxygen Index
- the smallest oxygen content required for the combustion of a material is determined using a blend of oxygen and nitrogen. If the LOI value is clearly higher than the oxygen content of air (21 %) , the combustion will cease by itself.
- the LOI values of different fibre qualities are given in the following table (L.
- Cotton/polyester 50/50 18,0 The combustibility of a fibre blend cannot be determined out of the combustibility of the separate components, but the determination must always be made out of the blend.
- Phosphor-, chlorine-, brome-, antimony-, tungsten- or boracium-bearing compounds are used as fire retardants for cellulosic fibres. These compounds are added to the fibre usually in the finishing stage. Brome-bearing organic compounds have also been blended with viscose prior to the spinning of the fibre.
- the disadvantage of these substances is their water solubility.
- the material loses its fire retardant properties after being washed with water.
- Tris-dibromepropylphosphate blended with viscose prior to spinning (approx. 15 % of the amount of cellulose)
- the present invention is based on the observation that by using a new solvent of cellulose, a blend of lithium chloride and dimethylacetamide (DMAC) or of lithium chloride and l-methyl-2-pyrrolidone (DOS 30 27 033) certain chlorous polymers can be blended into the cellulose in the solution in such proportions that when the blend is spun into fibres, it yields a product which has considerable improved ⁇ fire- retardant properties in comparison with cellulosic fibres.
- DMAC dimethylacetamide
- DOS 30 27 033 lithium chloride and l-methyl-2-pyrrolidone
- German Patent Application DOS 30 27 033 discloses the possibility to blend polyamides, polyesthers, polyethers, chitin and urethanes to LiCl/DMAc or LiCl/MP solutions of cellulose and to manufacture shaped products out of the blends. As it can be seen from the test results presented in Table 2, the above mentioned solutions are not, however, usually spinnable. Thus they are not suitable for preparing fibres according to the invention.
- Polymer Blend proportion (cellulose/polymer) 90/10 70/30 50/50 30/70 10/90
- EVA Ethylene and vinylacetate - blend polymer
- CMC Carboxymethyl cellulose
- PAA Polyacrylic acid
- PE Polyethylene
- PC Polycarbonate
- Polyvinyl chloride post- chlorinated (CPVC) Polymer Blend proportion (cellulose/polymer) 90/10 70/30 50/50 30/70 10/90
- Vinyldene chloride and vinylchloride 90/10 blend polymer PVDC/PVC
- Vinylchloride and vinyl ⁇ + + acetate 87/13 blend poly ⁇ mer (PVC/PVAc)
- blend polymer of acrylo ⁇ nitrile and vinyldene chloride modacrylate
- polyvinyl chloride PVC
- PVDC/PVC blend polymer of vinyldene chloride and vinylacetate
- PVC/PVAc blend polymer of vinylchloride and vinylacetate
- the solutions according to the invention contain 10 - 60 % by weight of chlorous polymer or polymers based on the total amount ofcellulose and chlorous polymers in the solution.
- the chlorous polymer can either be dissolved straight in the cellulose solution or first in a suitable organic solvent which is then mixed with the cellulose solution.
- Fibers are manufactured out of the obtained clear blend solution by feeding it to a solution in which cellulose and the chlorous polymer precipitate in the form of fibres. This method yields fibre, the LOI value of which is at least 21 % 0 2 , and subsequently its fire-retardant properties are consider ⁇ ably better than those of pure cellulosic fibre.
- the invention has the following advantages over the known methods for fire-proofing of cellulosic fibres:
- the method yields a product in which the fire-retardant is "built-in” .
- the blend is homogenous throughout the fibre, b) the fire-retardant does not dissolve in the spin bath when processing fibre, but precipitates completely together with the cellulose fibre.
- Example 2 Preparation of a cellulose solution using a
- Example 3 Preparation of cellulose/PVC (60/40) blend fibres
- Example 5 Preparation of cellulose/vinylchloride-vinyl acetate (40/60) blend fibres
- Example 7 Preparation of cellulose/vinyldenechloride- vinylchloride blend polymer/modacrylate (70/20/10) blend fibres
- Example 8 Preparation of cellulose/modacrylate (90/10) blend fibres
- the blend solution was spun to fibre as set forth in example 3.
- the blend fibre felt pleasant and continued to burn slowly in air after the flame was removed. Its LOI value was 21 - 22 % O p . The strength of the fibre was good.
- Example 10 Preparation of cellulose/PVAc 40/60 blend fibres in a DMSO/PF solvent
- DMSO and 125 g vinylchloride-vinylacetate blend polymer were blended with a filtrated cellulose solution prepared as set forth in example 9.
- the blend darkened rapidly, gelled and it was not possible to produce fibres out of it.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58500439A JPS58502225A (ja) | 1982-01-13 | 1982-12-31 | 難燃化セルロ−ス系繊維の製造方法 |
| DE19823249335 DE3249335T1 (de) | 1982-01-13 | 1982-12-31 | Verfahren zur Herstellung von feuergeschützten Zellulosefasern |
| GB08320768A GB2123840B (en) | 1982-01-13 | 1982-12-31 | Process for producing fire-retarded cellulosic fibres |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI820103A FI64404C (fi) | 1982-01-13 | 1982-01-13 | Foerfarande foer framstaellning av brandskyddade cellulosafibrer |
| FI820103820113 | 1982-01-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1983002465A1 true WO1983002465A1 (en) | 1983-07-21 |
Family
ID=8515014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FI1982/000071 WO1983002465A1 (en) | 1982-01-13 | 1982-12-31 | Process for producing fire-retarded cellulosic fibres |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS58502225A (enrdf_load_stackoverflow) |
| DE (1) | DE3249335T1 (enrdf_load_stackoverflow) |
| FI (1) | FI64404C (enrdf_load_stackoverflow) |
| FR (1) | FR2519659B1 (enrdf_load_stackoverflow) |
| GB (1) | GB2123840B (enrdf_load_stackoverflow) |
| IT (1) | IT1162813B (enrdf_load_stackoverflow) |
| WO (1) | WO1983002465A1 (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10027717A1 (de) * | 2000-06-03 | 2001-12-06 | Semmelroth Consulting Gmbh | Verfahren zur Herstellung eines Feuerschutzmittels für brennbare Materialien |
| DE102011101321A1 (de) * | 2011-05-12 | 2012-11-15 | Glanzstoff Bohemia S.R.O. | Flammhemmende Celluloseregeratfilamentfasern und Verfahren zu dessen Herstellung |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI60578B (fi) * | 1980-03-28 | 1981-10-30 | Valtion Teknillinen | Foerfarande foer tillverkning av brandskyddade cellulosafibrer |
| US4302252A (en) * | 1979-07-25 | 1981-11-24 | International Telephone And Telegraph Corp. | Solvent system for cellulose |
-
1982
- 1982-01-13 FI FI820103A patent/FI64404C/fi not_active IP Right Cessation
- 1982-12-31 WO PCT/FI1982/000071 patent/WO1983002465A1/en active Application Filing
- 1982-12-31 DE DE19823249335 patent/DE3249335T1/de active Granted
- 1982-12-31 JP JP58500439A patent/JPS58502225A/ja active Pending
- 1982-12-31 GB GB08320768A patent/GB2123840B/en not_active Expired
-
1983
- 1983-01-11 FR FR8300319A patent/FR2519659B1/fr not_active Expired
- 1983-01-12 IT IT67023/83A patent/IT1162813B/it active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4302252A (en) * | 1979-07-25 | 1981-11-24 | International Telephone And Telegraph Corp. | Solvent system for cellulose |
| FI60578B (fi) * | 1980-03-28 | 1981-10-30 | Valtion Teknillinen | Foerfarande foer tillverkning av brandskyddade cellulosafibrer |
Also Published As
| Publication number | Publication date |
|---|---|
| FI64404C (fi) | 1983-11-10 |
| FR2519659B1 (fr) | 1987-01-16 |
| IT8367023A0 (it) | 1983-01-12 |
| JPS58502225A (ja) | 1983-12-22 |
| IT1162813B (it) | 1987-04-01 |
| FI64404B (fi) | 1983-07-29 |
| GB2123840A (en) | 1984-02-08 |
| FR2519659A1 (fr) | 1983-07-18 |
| GB2123840B (en) | 1985-09-11 |
| GB8320768D0 (en) | 1983-09-01 |
| DE3249335C2 (enrdf_load_stackoverflow) | 1992-01-09 |
| DE3249335T1 (de) | 1984-02-23 |
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