KR910002964A - 4할로겐화비스페놀 폴리카보네이트로부터 막을 제조하는 방법 - Google Patents
4할로겐화비스페놀 폴리카보네이트로부터 막을 제조하는 방법 Download PDFInfo
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- KR910002964A KR910002964A KR1019890010695A KR890010695A KR910002964A KR 910002964 A KR910002964 A KR 910002964A KR 1019890010695 A KR1019890010695 A KR 1019890010695A KR 890010695 A KR890010695 A KR 890010695A KR 910002964 A KR910002964 A KR 910002964A
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- 239000012528 membrane Substances 0.000 title claims 18
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical class C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 title claims 8
- 229920000515 polycarbonate Polymers 0.000 title claims 8
- 239000004417 polycarbonate Substances 0.000 title claims 8
- 238000004519 manufacturing process Methods 0.000 title claims 2
- 238000000034 method Methods 0.000 claims 17
- 239000000203 mixture Substances 0.000 claims 16
- 239000000835 fiber Substances 0.000 claims 12
- 238000010791 quenching Methods 0.000 claims 10
- 239000002904 solvent Substances 0.000 claims 9
- 239000007788 liquid Substances 0.000 claims 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical class ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical class CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims 6
- 125000000217 alkyl group Chemical group 0.000 claims 5
- 239000012510 hollow fiber Substances 0.000 claims 5
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical class CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 claims 4
- 229930185605 Bisphenol Natural products 0.000 claims 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical class C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims 4
- 239000012530 fluid Substances 0.000 claims 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 4
- 239000004215 Carbon black (E152) Substances 0.000 claims 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 3
- 229930195733 hydrocarbon Natural products 0.000 claims 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims 3
- 229910052757 nitrogen Inorganic materials 0.000 claims 3
- 229910052760 oxygen Inorganic materials 0.000 claims 3
- 239000001301 oxygen Substances 0.000 claims 3
- FEWLNYSYJNLUOO-UHFFFAOYSA-N 1-Piperidinecarboxaldehyde Chemical compound O=CN1CCCCC1 FEWLNYSYJNLUOO-UHFFFAOYSA-N 0.000 claims 2
- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 claims 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 claims 2
- 229910052794 bromium Inorganic materials 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 2
- 230000000593 degrading effect Effects 0.000 claims 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims 2
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 claims 2
- 239000011874 heated mixture Substances 0.000 claims 2
- 150000002430 hydrocarbons Chemical class 0.000 claims 2
- 239000001257 hydrogen Substances 0.000 claims 2
- 229910052739 hydrogen Inorganic materials 0.000 claims 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 2
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 claims 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 claims 2
- 238000000926 separation method Methods 0.000 claims 2
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical class O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 claims 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Chemical class C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims 2
- AVQQQNCBBIEMEU-UHFFFAOYSA-N 1,1,3,3-tetramethylurea Chemical class CN(C)C(=O)N(C)C AVQQQNCBBIEMEU-UHFFFAOYSA-N 0.000 claims 1
- HVCNXQOWACZAFN-UHFFFAOYSA-N 4-ethylmorpholine Chemical compound CCN1CCOCC1 HVCNXQOWACZAFN-UHFFFAOYSA-N 0.000 claims 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims 1
- YYLLIJHXUHJATK-UHFFFAOYSA-N Cyclohexyl acetate Chemical class CC(=O)OC1CCCCC1 YYLLIJHXUHJATK-UHFFFAOYSA-N 0.000 claims 1
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical group C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 claims 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims 1
- 125000004453 alkoxycarbonyl group Chemical group 0.000 claims 1
- 125000003118 aryl group Chemical group 0.000 claims 1
- 150000001555 benzenes Chemical class 0.000 claims 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims 1
- 125000001589 carboacyl group Chemical group 0.000 claims 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims 1
- WCKOGWVWLFJJJX-ZCXGUVEESA-N carolacton Chemical compound OC(=O)C[C@@H](OC)[C@@H](C)C(=O)[C@H](C)\C=C(/C)[C@H]1OC(=O)[C@H](O)[C@H](O)\C=C\[C@H](C)CCC[C@@H]1C WCKOGWVWLFJJJX-ZCXGUVEESA-N 0.000 claims 1
- 239000000460 chlorine Substances 0.000 claims 1
- 229910052801 chlorine Inorganic materials 0.000 claims 1
- 125000000753 cycloalkyl group Chemical group 0.000 claims 1
- LZXKYZCMLFVGQU-UHFFFAOYSA-N cyclohexanone;n,n-dimethylacetamide Chemical class CN(C)C(C)=O.O=C1CCCCC1 LZXKYZCMLFVGQU-UHFFFAOYSA-N 0.000 claims 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 claims 1
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 claims 1
- 150000002576 ketones Chemical class 0.000 claims 1
- 229960001047 methyl salicylate Drugs 0.000 claims 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims 1
- 125000004433 nitrogen atom Chemical group N* 0.000 claims 1
- 238000005191 phase separation Methods 0.000 claims 1
- 150000004040 pyrrolidinones Chemical class 0.000 claims 1
- 239000013557 residual solvent Substances 0.000 claims 1
- 239000011877 solvent mixture Substances 0.000 claims 1
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- 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
- C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/0011—Casting solutions therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
- B01D69/087—Details relating to the spinning process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/50—Polycarbonates
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/09—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
- C08J3/091—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids characterised by the chemical constitution of the organic liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/12—Oxygen
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2257/10—Single element gases other than halogens
- B01D2257/102—Nitrogen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2323/00—Details relating to membrane preparation
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Abstract
내용 없음.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (17)
- (A)(i) 25중량% 이상의 비스페놀잔기가 염소 또는 브롬에 의해 4할로겐화된 비스페놀 폴리카보네이트; 및 (ii)일반식 R3O-(CH2CH2O)r-R3[여기에서, R3은 메틸 또는 에틸이고, r은 1내지 20의 정수이다]의 클리콜에테르;알킬그룹이 독립적으로 메틸 또는 에틸인 디알킬 케톤;질소원자상에서 알킬, 포르밀 또는 알카노일 잔기에 의해 치한된 모르폴린;비치환되거나 N-C1-4알킬, N-C5-6시클로알킬 또는 N-C6-10아릴, 또는 알크아릴치환된 피롤리디논;C-1-4알콕시카보닐, 포르밀, 니트로 또는 할로겐치환된 벤젠;테트라히드로푸란;디메틸 포름아미드;시클로 헥사논;N,N-디메틸 아세트 아미드;아세토페논; 메틸렌 클로라이드;설폴란;시클로헥실 아세테이트;1,1,3,3-테트라메틸우레아;이소포톤;카르롤락톤;1-포르밀피페리딘;메틸 살리실레이트;헥사메틸포스포르아미드;페닐 에테르;또는 브로모나트탈렌을 함유하는 폴리카보네이트에 대한 용매를 혼합하고;(B)혼합물을 가열하여, 압출시킬 수 있는 균질유체를 형성하고;(C)가열된 혼합물은 막용도에 적합한 형태로 압출시키고;(D)형성된 막을, 혼합물을 상분리하고 막으로 부터 대부분의 용매가 제거되는 하나 이상의 급냉지대를 통과시키는 단계를 포함하며, 이때 형성된 막은 산소를 질소로부터 분리할 수 있는 식별부위(discrimination region)를 가짐을 특징으로 하여, 4할로겐화비스페놀 폴리카보네이트를 함유하는 막을 제조하는 방법.
- 제1항에 있어서, 폴리카보네이트가 다음 일반식(Ⅰ)의 화합물(단 식별층에 존재하는 일반식(Ⅰ)의 비스페놀로부터 유도된 잔기중 25중량% 이상은 Br 또는 C1이 아닌 R그룹을 함유한다)인 방법;상기식에서, R은 각각 독립적으로 H,CI,Br또는 C1-4알킬이고 ; R1은 카보닐, -S-, -SO2-, -O-, C1-62 가 탄화수소, C1-62가 할로겐화탄소라디칼, 또는 불활성 치환된 C1-6탄화수소라디칼이며;n은 50이상의 양의 (positive)실수이다.
- 제2항에 있어서, 막을 압출기로부터 공기급냉지대로 통과시키고, 여기에서 일부의 용매를 제거하고 하나이상의 액체급냉지대로 통과시키며, 여기에서 실질적으로 완전히 상분리시키고, 잔류용매를 실질적으로 제거하는 방법.
- 제3항에 있어서, 막을 제1액체지대를 통과시키고, 여기에서 막이 상기 욕조(bath)에서 상당히 상분리되면 제2액체욕조를 통과시키고, 여기에서 용매를 막으로부터 실질적으로 제거하고 막의 상은 실질적으로 완전히 분리되는 방법.
- 제4항에 있어서, 일부의 R그룹이 수소 또는 C1-4알킬이고, R1은 C1-62가 탄화수소인 방법.
- 제5항에 있어서, 일부의 R그룹이 수소 또는 메틸이고, R1은 C1-6알킬리딘잔기인 방법.
- 제6항에 있어서, 식별층에 존재하는 비스페놀 잔기중 50중량% 이상이 Br 또는 C1이 아닌 R그룹을 함유하는 방법.
- 제1항에 있어서, 비스페놀이 테트라브로모 비스페놀 A인 방법.
- 제7항에 있어서, 혼합물이 40내지 60중량%의 폴리카보네이트 및 40내지 60중량%의 용매인 방법.
- 제9항에 있어서, 폴리카보네이트에 대한 용매가 N-메틸 피톨리디논, 테트라히드로푸란, 에틸렌 글리콜디메틸 에테르, 디에틸 케톤, N-에틸 모르폴린, 디메틸 포름아미드, 시클로헥사는, 비스(2-메톡시에틸 에테르), N,N-디메틸 아세트아미드, 아세토페논, 메틸렌 클로라이드, 설폴란, 또는 이들의 혼합물을 함유하는 방법.
- 제10항에 있어서, 혼합물을 50내지 200℃의 온도까지 압출시키기 전에 혼합물을 가열하고, 혼합물을 50내지 200℃의 온도에서 압출시키는 방법.
- 제11항에 있어서, 압출된 혼합물을, 0내지 30℃의 온도에서 물을 함유하는 제1액체급냉지대와 접촉시키고, 70내지 100℃의 온도에서 물을 함유하는 제2액체급냉지대와 접촉시키는 방법.
- 제12항에 있어서, 압출된 혼합물이 공기급냉지대에 체류하는 시간이 0.25내지 1초이고, 제1액체 급냉지대에서는 0.1내지 600초이며, 제2액체급냉지대에서는 1 내지 30분인 방법.
- 제13항에 있어서, 막을 제2액체급냉지대로 부터 제거한 후 막이 1.5중량%미만의 용매를 함유하는 방법.
- 제1항에 있어서, 상기 가열된 비스페놀 폴리카보네이트-용매 혼합물을 중공(hollow) 섬유형태로 압출시키고; 형성된 섬유를 하나 이상의 급냉지대를 통과시키고, 여기에서 혼합물이 상분리하며, 형성된 막으로 부터 대부분의 용매가 제거되는 한편, 코어유체는 상기 섬유가 분해되지 않도록 방지하는 섬유의 중공코어하부를 통과시키는 단계를 포함하는, 형성된 막을 중공섬유로 제조하는 방법.
- 제1항 또는 제15항에 있어서, 24℃에서 산소 및 질소에 대한 막의 분리계수가 6.0이상인 방법.
- 제1항에 있어서, (A) 40내지 60중량%의 테트라브로모비스페놀 A폴리카보네이트를 40내지 60중량%의 N-메틸 피톨리돈과 혼합시키고, 여기에서 혼합물은 혼합물이 균질한 온도에서 혼합물을 압출시키기에 충분한 점도를 가지며;(B)혼합물이 균질유체이고 혼합물을 압출시킬 수 있는 온도에서 혼합물을 50 내지 200℃의 온도까지 가열하고; (C)가열된 혼합물을 50 내지 200℃의 온도에서 중공섬유형태로 압출시키고; (D)형성된 섬유를 공기급냉지대를 통과시키고, 여기에서 섬유는 일부의 용매가 손실되는 한편, 코어유체는 섬유가 분해되지 않도록 방지하기에 충분한 조건하에서 섬유의 중공코어하부를 통과시키고, 여기에서 섬유가 공기급냉지대에 체류하는 시간은 0.25내지 1.0초이고; (E)섬유를 0내지 30℃의 온도에서 0.1내지 600초 동안 제1수(water) 급냉지대로 통과시키고, 여기에서 혼합물은 상당히 상분리하며, 형성된 섬유로부터 대부분의 N-메틸 피톨리돈이 제거되고;(F)70내지 100℃의 온도에서 2 내지 30분 동안 섬유를 제2수급냉지대로 통과시키고, 여기에서 대부분의 N-메틸 피톨리돈이 제거되고 실질적으로 상분리가 완결되는 단계를 포함하며, 여기에서 형성된 중공섬유는 분리계수가 6.0이상이고, 산소를 질소로부터 분리할 수 있는 식별부위를 갖는 비대칭섬유인 중공섬유막을 제조하는 방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/226,348 US4975228A (en) | 1988-07-29 | 1988-07-29 | Process for preparing membranes from tetrahalobisphenol polycarbonates |
| US226,348 | 1988-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR910002964A true KR910002964A (ko) | 1991-02-26 |
Family
ID=22848587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019890010695A KR910002964A (ko) | 1988-07-29 | 1989-07-28 | 4할로겐화비스페놀 폴리카보네이트로부터 막을 제조하는 방법 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4975228A (ko) |
| EP (1) | EP0352765A3 (ko) |
| JP (1) | JPH0286630A (ko) |
| KR (1) | KR910002964A (ko) |
| CN (1) | CN1043090A (ko) |
| AU (1) | AU3902989A (ko) |
| CA (1) | CA1321689C (ko) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5045325A (en) * | 1990-09-26 | 1991-09-03 | Warner-Lambert Company | Continuous production of chewing gum using corotating twin screw extruder |
| US5085676A (en) * | 1990-12-04 | 1992-02-04 | E. I. Du Pont De Nemours And Company | Novel multicomponent fluid separation membranes |
| US5141530A (en) * | 1991-08-22 | 1992-08-25 | The Dow Chemical Company | Polycarbonate, polyester, and polyestercarbonate semi-permeable gas separation membranes possessing improved gas selectivity and recovery, and processes for making and using the same |
| US5163977A (en) * | 1991-08-22 | 1992-11-17 | The Dow Chemical Company | Semi-permeable gas separation membranes containing non-ionic surfactants possessing improved resistance to thermal compaction and processes for making and using the same |
| US5156656A (en) * | 1991-09-13 | 1992-10-20 | The Dow Chemical Company | Semi-permeable membranes derived from reactive oligomers |
| US5409524A (en) * | 1992-12-01 | 1995-04-25 | The Dow Chemical Company | Membranes having improved selectivity and recovery, and process for making same |
| JP2001520685A (ja) * | 1997-02-28 | 2001-10-30 | キャンデセント・テクノロジーズ・コーポレイション | ポリカーボネート含有液体化学調合物及びポリカーボネートフィルムを形成するための方法 |
| US6500885B1 (en) | 1997-02-28 | 2002-12-31 | Candescent Technologies Corporation | Polycarbonate-containing liquid chemical formulation and methods for making and using polycarbonate film |
| US6168649B1 (en) | 1998-12-09 | 2001-01-02 | Mg Generon, Inc. | Membrane for separation of xenon from oxygen and nitrogen and method of using same |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3256675A (en) * | 1962-11-30 | 1966-06-21 | Gen Electric | Method and apparatus for gas separation by thin films or membranes |
| US3615024A (en) * | 1968-08-26 | 1971-10-26 | Amicon Corp | High flow membrane |
| US3709774A (en) * | 1970-05-13 | 1973-01-09 | Gen Electric | Preparation of asymmetric polymer membranes |
| US3945926A (en) * | 1971-10-18 | 1976-03-23 | Chemical Systems, Inc. | Integral microporous high void volume polycarbonate membranes and a dry process for forming same |
| US4048271A (en) * | 1972-10-02 | 1977-09-13 | Chemical Systems, Inc. | Dry process for forming polycarbonate membranes |
| DE2248818C2 (de) * | 1972-10-05 | 1981-10-15 | Bayer Ag, 5090 Leverkusen | Dünne porenfreie Polycarbonatfolien und -filme |
| US4075108A (en) * | 1974-03-26 | 1978-02-21 | The United States Of America As Represented By The Department Of Health, Education And Welfare | Polycarbonate membranes and production thereof |
| GB1507921A (en) * | 1974-04-01 | 1978-04-19 | Gen Electric | Membranes |
| SU529183A1 (ru) * | 1974-10-14 | 1976-09-25 | Предприятие П/Я Г-4236 | Способ получени полисилоксанполикарбонатных сополимеров |
| US4374891A (en) * | 1974-12-26 | 1983-02-22 | General Electric Company | Ultrathin polymer membranes |
| JPS6038166B2 (ja) * | 1976-07-30 | 1985-08-30 | 東ソー株式会社 | 複合膜の製造方法 |
| CA1127472A (en) * | 1977-11-25 | 1982-07-13 | Robert L. Riley | Gas separation membranes and process for the preparation thereof |
| JPS588511A (ja) * | 1981-07-09 | 1983-01-18 | Toyobo Co Ltd | 選択性分離膜 |
| JPS58223411A (ja) * | 1982-06-21 | 1983-12-26 | Matsushita Electric Ind Co Ltd | 選択性気体透過複合膜 |
| JPS5922724A (ja) * | 1982-07-29 | 1984-02-06 | Asahi Glass Co Ltd | 薄膜の製造方法 |
| JPS59120206A (ja) * | 1982-12-27 | 1984-07-11 | Agency Of Ind Science & Technol | 選択性分離膜 |
| DE3408804A1 (de) * | 1983-09-30 | 1985-04-18 | Bayer Ag, 5090 Leverkusen | Polyether-copolycarbonate fuer dialysemembranen |
| JPS626909A (ja) * | 1985-06-26 | 1987-01-13 | Idemitsu Kosan Co Ltd | 中空繊維の製造方法 |
| AU594755B2 (en) * | 1986-04-14 | 1990-03-15 | Dow Chemical Company, The | Semi-permeable membranes comprising predominantly of polycarbonates derived from tetrahalbisphenols |
| US4772392A (en) * | 1987-11-06 | 1988-09-20 | The Dow Chemical Company | Process for preparing POWADIR membranes from tetrahalobisphenol A polycarbonates |
-
1988
- 1988-07-29 US US07/226,348 patent/US4975228A/en not_active Expired - Fee Related
-
1989
- 1989-07-26 EP EP89113782A patent/EP0352765A3/en not_active Withdrawn
- 1989-07-27 AU AU39029/89A patent/AU3902989A/en not_active Abandoned
- 1989-07-27 CA CA000606770A patent/CA1321689C/en not_active Expired - Fee Related
- 1989-07-27 CN CN89107305A patent/CN1043090A/zh active Pending
- 1989-07-28 JP JP1194403A patent/JPH0286630A/ja active Pending
- 1989-07-28 KR KR1019890010695A patent/KR910002964A/ko not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0286630A (ja) | 1990-03-27 |
| EP0352765A3 (en) | 1990-05-30 |
| US4975228A (en) | 1990-12-04 |
| CN1043090A (zh) | 1990-06-20 |
| CA1321689C (en) | 1993-08-31 |
| EP0352765A2 (en) | 1990-01-31 |
| AU3902989A (en) | 1990-02-01 |
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