DE2118509A1 - Verfahren zur Herstellung von Schäumen aus Polyamiden - Google Patents
Verfahren zur Herstellung von Schäumen aus PolyamidenInfo
- Publication number
- DE2118509A1 DE2118509A1 DE19712118509 DE2118509A DE2118509A1 DE 2118509 A1 DE2118509 A1 DE 2118509A1 DE 19712118509 DE19712118509 DE 19712118509 DE 2118509 A DE2118509 A DE 2118509A DE 2118509 A1 DE2118509 A1 DE 2118509A1
- Authority
- DE
- Germany
- Prior art keywords
- polyamides
- polyamide
- substituents
- foams
- diamines
- 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.)
- Pending
Links
- 239000004952 Polyamide Substances 0.000 title claims description 72
- 229920002647 polyamide Polymers 0.000 title claims description 72
- 239000006260 foam Substances 0.000 title claims description 26
- 238000000034 method Methods 0.000 title claims description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 29
- 229910052757 nitrogen Inorganic materials 0.000 claims description 21
- 125000001424 substituent group Chemical group 0.000 claims description 14
- 125000004432 carbon atom Chemical group C* 0.000 claims description 11
- 150000001408 amides Chemical class 0.000 claims description 9
- 238000005187 foaming Methods 0.000 claims description 8
- 239000000155 melt Substances 0.000 claims description 7
- 125000001931 aliphatic group Chemical group 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 4
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000975 dye Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000004014 plasticizer Substances 0.000 claims description 3
- 239000003380 propellant Substances 0.000 claims description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 27
- 239000002904 solvent Substances 0.000 description 18
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 15
- 150000004985 diamines Chemical class 0.000 description 15
- 238000002844 melting Methods 0.000 description 12
- 238000009833 condensation Methods 0.000 description 11
- 230000005494 condensation Effects 0.000 description 11
- 230000008018 melting Effects 0.000 description 11
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical class NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 10
- -1 N-substituted amino compounds Chemical class 0.000 description 10
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 10
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 9
- 150000001991 dicarboxylic acids Chemical class 0.000 description 9
- 150000003839 salts Chemical class 0.000 description 9
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 8
- 230000008030 elimination Effects 0.000 description 8
- 238000003379 elimination reaction Methods 0.000 description 8
- 239000011521 glass Substances 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- 125000002947 alkylene group Chemical group 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 5
- 125000000217 alkyl group Chemical group 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 235000011037 adipic acid Nutrition 0.000 description 4
- 239000001361 adipic acid Substances 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 4
- 238000003776 cleavage reaction Methods 0.000 description 4
- 230000007017 scission Effects 0.000 description 4
- 239000004604 Blowing Agent Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- FDQSRULYDNDXQB-UHFFFAOYSA-N benzene-1,3-dicarbonyl chloride Chemical compound ClC(=O)C1=CC=CC(C(Cl)=O)=C1 FDQSRULYDNDXQB-UHFFFAOYSA-N 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- IFPNMSWNEMEYIH-UHFFFAOYSA-N 1-n,3-n-bis(2-methylpropyl)benzene-1,3-diamine Chemical compound CC(C)CNC1=CC=CC(NCC(C)C)=C1 IFPNMSWNEMEYIH-UHFFFAOYSA-N 0.000 description 2
- ALYNCZNDIQEVRV-UHFFFAOYSA-N 4-aminobenzoic acid Chemical compound NC1=CC=C(C(O)=O)C=C1 ALYNCZNDIQEVRV-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 150000004984 aromatic diamines Chemical class 0.000 description 2
- 125000003710 aryl alkyl group Chemical group 0.000 description 2
- 125000000732 arylene group Chemical group 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 125000000753 cycloalkyl group Chemical group 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 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
- ZZKUNJARGOJVQS-UHFFFAOYSA-N n-[[4-[(tert-butylamino)methyl]phenyl]methyl]-2-methylpropan-2-amine Chemical compound CC(C)(C)NCC1=CC=C(CNC(C)(C)C)C=C1 ZZKUNJARGOJVQS-UHFFFAOYSA-N 0.000 description 2
- DMCTVRQBJMBEDT-UHFFFAOYSA-N phenol;1,1,1,2-tetrachloroethane Chemical compound ClCC(Cl)(Cl)Cl.OC1=CC=CC=C1 DMCTVRQBJMBEDT-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- AOJFQRQNPXYVLM-UHFFFAOYSA-N pyridin-1-ium;chloride Chemical compound [Cl-].C1=CC=[NH+]C=C1 AOJFQRQNPXYVLM-UHFFFAOYSA-N 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- LNGJOYPCXLOTKL-WHFBIAKZSA-N (1s,3s)-cyclopentane-1,3-dicarboxylic acid Chemical compound OC(=O)[C@H]1CC[C@H](C(O)=O)C1 LNGJOYPCXLOTKL-WHFBIAKZSA-N 0.000 description 1
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 description 1
- XFDUHJPVQKIXHO-UHFFFAOYSA-N 3-aminobenzoic acid Chemical compound NC1=CC=CC(C(O)=O)=C1 XFDUHJPVQKIXHO-UHFFFAOYSA-N 0.000 description 1
- DGNHGRLDBKAPEH-UHFFFAOYSA-N 3-azaniumyl-2,2-dimethylpropanoate Chemical compound NCC(C)(C)C(O)=O DGNHGRLDBKAPEH-UHFFFAOYSA-N 0.000 description 1
- NEQFBGHQPUXOFH-UHFFFAOYSA-N 4-(4-carboxyphenyl)benzoic acid Chemical compound C1=CC(C(=O)O)=CC=C1C1=CC=C(C(O)=O)C=C1 NEQFBGHQPUXOFH-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- PXGZQGDTEZPERC-IZLXSQMJSA-N OC(=O)[C@H]1CC[C@H](C(O)=O)CC1 Chemical class OC(=O)[C@H]1CC[C@H](C(O)=O)CC1 PXGZQGDTEZPERC-IZLXSQMJSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- HTALOEFRFXMCFB-BQBZGAKWSA-N [(1S,3S)-3-(aminomethyl)cyclopentyl]methanamine Chemical compound NC[C@@H]1C[C@H](CC1)CN HTALOEFRFXMCFB-BQBZGAKWSA-N 0.000 description 1
- BDYVWDMHYNGVGE-YUMQZZPRSA-N [(1r,2r)-2-(aminomethyl)cyclohexyl]methanamine Chemical compound NC[C@@H]1CCCC[C@H]1CN BDYVWDMHYNGVGE-YUMQZZPRSA-N 0.000 description 1
- QWBXSHYNFZGYAM-UHFFFAOYSA-N [3-(aminomethyl)-2,4-dimethylphenyl]methanamine Chemical compound CC1=CC=C(CN)C(C)=C1CN QWBXSHYNFZGYAM-UHFFFAOYSA-N 0.000 description 1
- FDLQZKYLHJJBHD-UHFFFAOYSA-N [3-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=CC(CN)=C1 FDLQZKYLHJJBHD-UHFFFAOYSA-N 0.000 description 1
- AJSMFLLYPNSHIV-UHFFFAOYSA-N [4-(aminomethyl)-2,5-dimethylphenyl]methanamine Chemical compound CC1=CC(CN)=C(C)C=C1CN AJSMFLLYPNSHIV-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000002318 adhesion promoter Substances 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 229960004050 aminobenzoic acid Drugs 0.000 description 1
- 239000000010 aprotic solvent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- MPFLRYZEEAQMLQ-UHFFFAOYSA-N dinicotinic acid Chemical compound OC(=O)C1=CN=CC(C(O)=O)=C1 MPFLRYZEEAQMLQ-UHFFFAOYSA-N 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012433 hydrogen halide Substances 0.000 description 1
- 229910000039 hydrogen halide Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229940018564 m-phenylenediamine Drugs 0.000 description 1
- 150000004988 m-phenylenediamines Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical class C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 1
- DFFZOPXDTCDZDP-UHFFFAOYSA-N naphthalene-1,5-dicarboxylic acid Chemical compound C1=CC=C2C(C(=O)O)=CC=CC2=C1C(O)=O DFFZOPXDTCDZDP-UHFFFAOYSA-N 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 150000004989 p-phenylenediamines Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- GKXVJHDEWHKBFH-UHFFFAOYSA-N xylylenediamine group Chemical group C=1(C(=CC=CC1)CN)CN GKXVJHDEWHKBFH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/48—Polymers modified by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/02—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by the reacting monomers or modifying agents during the preparation or modification of macromolecules
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Polyamides (AREA)
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712118509 DE2118509A1 (de) | 1971-04-16 | 1971-04-16 | Verfahren zur Herstellung von Schäumen aus Polyamiden |
| NL7204824A NL7204824A (enExample) | 1971-04-16 | 1972-04-11 | |
| AT327072A AT314839B (de) | 1971-04-16 | 1972-04-14 | Verfahren zur Herstellung von Schäumen aus Polyamiden |
| US00244282A US3770669A (en) | 1971-04-16 | 1972-04-14 | Process for the manufacture of cellular plastics from polyamides |
| CA139,683A CA987050A (en) | 1971-04-16 | 1972-04-14 | Process for the manufacture of cellular plastics from n-substituted polyamides |
| ZA722516A ZA722516B (en) | 1971-04-16 | 1972-04-14 | Process for the manufacture of cellular plastics from polyamides |
| IT7251/72A IT953314B (it) | 1971-04-16 | 1972-04-14 | Processo per la preparazione di espansi da poliammidi |
| FR7213388A FR2133808B1 (enExample) | 1971-04-16 | 1972-04-17 | |
| BE782217A BE782217A (fr) | 1971-04-16 | 1972-04-17 | Fabrication de materiaux cellulaires en polyamides |
| GB1769472A GB1392113A (en) | 1971-04-16 | 1972-04-17 | Process for the manufacture of cellular polyamides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712118509 DE2118509A1 (de) | 1971-04-16 | 1971-04-16 | Verfahren zur Herstellung von Schäumen aus Polyamiden |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2118509A1 true DE2118509A1 (de) | 1972-10-26 |
Family
ID=5804911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712118509 Pending DE2118509A1 (de) | 1971-04-16 | 1971-04-16 | Verfahren zur Herstellung von Schäumen aus Polyamiden |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3770669A (enExample) |
| AT (1) | AT314839B (enExample) |
| BE (1) | BE782217A (enExample) |
| CA (1) | CA987050A (enExample) |
| DE (1) | DE2118509A1 (enExample) |
| FR (1) | FR2133808B1 (enExample) |
| GB (1) | GB1392113A (enExample) |
| IT (1) | IT953314B (enExample) |
| NL (1) | NL7204824A (enExample) |
| ZA (1) | ZA722516B (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4178419A (en) * | 1978-02-27 | 1979-12-11 | E. I. Du Pont De Nemours And Company | Process and product |
| US4226949A (en) * | 1979-08-01 | 1980-10-07 | E. I. Du Pont De Nemours And Company | Wholly aromatic polyamide foam |
| JPS58201826A (ja) * | 1982-05-19 | 1983-11-24 | Teijin Ltd | 気泡含有芳香族ポリアミド成型品及びその製造法 |
| US4801657A (en) * | 1987-04-02 | 1989-01-31 | E. I. Du Pont De Nemours And Company | Process for producing polyarylethers by forming an alkylated intermediate |
| US5968598A (en) * | 1997-09-15 | 1999-10-19 | E.I. Du Pont De Nemours And Company | PPD-T structural composites |
| FR2818790B1 (fr) * | 2000-12-21 | 2003-03-21 | Transnucleaire | Dispositif de conditionnement, pour le transport en vrac de matieres fissiles uraniferes |
-
1971
- 1971-04-16 DE DE19712118509 patent/DE2118509A1/de active Pending
-
1972
- 1972-04-11 NL NL7204824A patent/NL7204824A/xx unknown
- 1972-04-14 ZA ZA722516A patent/ZA722516B/xx unknown
- 1972-04-14 IT IT7251/72A patent/IT953314B/it active
- 1972-04-14 CA CA139,683A patent/CA987050A/en not_active Expired
- 1972-04-14 US US00244282A patent/US3770669A/en not_active Expired - Lifetime
- 1972-04-14 AT AT327072A patent/AT314839B/de not_active IP Right Cessation
- 1972-04-17 BE BE782217A patent/BE782217A/xx unknown
- 1972-04-17 GB GB1769472A patent/GB1392113A/en not_active Expired
- 1972-04-17 FR FR7213388A patent/FR2133808B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2133808A1 (enExample) | 1972-12-01 |
| BE782217A (fr) | 1972-10-17 |
| FR2133808B1 (enExample) | 1976-10-29 |
| ZA722516B (en) | 1973-02-28 |
| GB1392113A (en) | 1975-04-30 |
| US3770669A (en) | 1973-11-06 |
| AT314839B (de) | 1974-04-25 |
| IT953314B (it) | 1973-08-10 |
| NL7204824A (enExample) | 1972-10-18 |
| CA987050A (en) | 1976-04-06 |
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