DD283826A5 - Verfahren zur herstellung eines polyurethanpolymers - Google Patents

Verfahren zur herstellung eines polyurethanpolymers Download PDF

Info

Publication number: DD283826A5
Authority: DD; German Democratic Republic
Prior art keywords: polymer; ethylenically unsaturated; active; formula; polyurethane polymer
Prior art date: 1986-06-25

Application number

DD87327856A

Other languages

German (de)

English (en)

Inventor

Oomman P Thomas

Robert B Turner

Original Assignee

��@��@��@��k��

Priority date (The priority date 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 date listed.)

1986-06-25

Filing date

1987-06-23

Publication date

1990-10-24

1987-06-23 Application filed by ��@��@��@��k�� filed Critical ��@��@��@��k��

1990-10-24 Publication of DD283826A5 publication Critical patent/DD283826A5/de

Links

229920000642 polymer Polymers 0.000 title claims abstract description 37
239000004814 polyurethane Substances 0.000 title claims abstract description 26
229920002635 polyurethane Polymers 0.000 title claims abstract description 16
238000004519 manufacturing process Methods 0.000 title abstract description 6
229910052739 hydrogen Inorganic materials 0.000 claims abstract description 18
239000001257 hydrogen Substances 0.000 claims abstract description 18
150000001875 compounds Chemical class 0.000 claims abstract description 16
238000000034 method Methods 0.000 claims abstract description 8
229920001228 polyisocyanate Polymers 0.000 claims abstract description 6
239000005056 polyisocyanate Substances 0.000 claims abstract description 6
229920000106 Liquid crystal polymer Polymers 0.000 claims abstract description 5
239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 claims abstract description 3
125000000217 alkyl group Chemical group 0.000 claims description 5
229910052736 halogen Inorganic materials 0.000 claims description 4
150000002367 halogens Chemical class 0.000 claims description 4
230000001413 cellular effect Effects 0.000 claims description 3
125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
239000000178 monomer Substances 0.000 claims description 3
238000002360 preparation method Methods 0.000 claims description 3
125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 claims description 2
125000003368 amide group Chemical group 0.000 claims description 2
125000003118 aryl group Chemical group 0.000 claims description 2
150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 2
125000004093 cyano group Chemical group *C#N 0.000 claims description 2
125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 2
125000004185 ester group Chemical group 0.000 claims description 2
125000001183 hydrocarbyl group Chemical group 0.000 claims description 2
150000002431 hydrogen Chemical class 0.000 claims description 2
125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
239000003431 cross linking reagent Substances 0.000 claims 2
239000004604 Blowing Agent Substances 0.000 claims 1
239000002262 Schiff base Substances 0.000 claims 1
150000004753 Schiff bases Chemical class 0.000 claims 1
125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 claims 1
239000003513 alkali Substances 0.000 claims 1
150000008378 aryl ethers Chemical class 0.000 claims 1
239000002585 base Substances 0.000 claims 1
150000001558 benzoic acid derivatives Chemical class 0.000 claims 1
230000021615 conjugation Effects 0.000 claims 1
150000003431 steroids Chemical class 0.000 claims 1
125000003011 styrenyl group Chemical class [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims 1
239000000725 suspension Substances 0.000 claims 1
229920005862 polyol Polymers 0.000 abstract description 18
150000003077 polyols Chemical class 0.000 abstract description 18
229920002396 Polyurea Polymers 0.000 abstract description 15
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 14
239000006185 dispersion Substances 0.000 abstract description 6
239000007788 liquid Substances 0.000 abstract description 5
239000004973 liquid crystal related substance Substances 0.000 abstract description 3
230000006835 compression Effects 0.000 abstract description 2
238000007906 compression Methods 0.000 abstract description 2
230000001419 dependent effect Effects 0.000 abstract 1
229920003226 polyurethane urea Polymers 0.000 description 11
229920000570 polyether Polymers 0.000 description 6
239000006260 foam Substances 0.000 description 5
230000000704 physical effect Effects 0.000 description 4
229920000728 polyester Polymers 0.000 description 4
239000002245 particle Substances 0.000 description 3
LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
239000004721 Polyphenylene oxide Substances 0.000 description 2
HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 description 2
238000001246 colloidal dispersion Methods 0.000 description 2
125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
239000000463 material Substances 0.000 description 2
125000002924 primary amino group Chemical class [H]N([H])* 0.000 description 2
125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 description 2
239000004970 Chain extender Substances 0.000 description 1
VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
239000005977 Ethylene Substances 0.000 description 1
LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical group SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
239000004990 Smectic liquid crystal Substances 0.000 description 1
150000005215 alkyl ethers Chemical class 0.000 description 1
150000004982 aromatic amines Chemical group 0.000 description 1
238000003491 array Methods 0.000 description 1
150000001735 carboxylic acids Chemical class 0.000 description 1
239000007795 chemical reaction product Substances 0.000 description 1
235000012000 cholesterol Nutrition 0.000 description 1
238000005056 compaction Methods 0.000 description 1
229920001577 copolymer Polymers 0.000 description 1
XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
210000003608 fece Anatomy 0.000 description 1
WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
238000009413 insulation Methods 0.000 description 1
239000012948 isocyanate Substances 0.000 description 1
150000002513 isocyanates Chemical class 0.000 description 1
239000000203 mixture Substances 0.000 description 1
229920000162 poly(ureaurethane) Polymers 0.000 description 1

Classifications

- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- 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
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
- C08G18/635—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers onto unsaturated polymers
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
- C08G18/638—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers characterised by the use of compounds having carbon-to-carbon double bonds other than styrene and/or olefinic nitriles
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/81—Unsaturated isocyanates or isothiocyanates
- C08G18/8108—Unsaturated isocyanates or isothiocyanates having only one isocyanate or isothiocyanate group
- C08G18/8116—Unsaturated isocyanates or isothiocyanates having only one isocyanate or isothiocyanate group esters of acrylic or alkylacrylic acid having only one isocyanate or isothiocyanate group
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/38—Polymers
- C09K19/3833—Polymers with mesogenic groups in the side chain
- C09K19/3885—Polyurethanes
- 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
- C08G2250/00—Compositions for preparing crystalline polymers
- 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
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Medicinal Chemistry (AREA)
Polymers & Plastics (AREA)
Health & Medical Sciences (AREA)
Materials Engineering (AREA)
Engineering & Computer Science (AREA)
Crystallography & Structural Chemistry (AREA)
Polyurethanes Or Polyureas (AREA)
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Steroid Compounds (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

DD87327856A 1986-06-25 1987-06-23 Verfahren zur herstellung eines polyurethanpolymers DD283826A5 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US87846086A	1986-06-25	1986-06-25

Publications (1)

Publication Number	Publication Date
DD283826A5 true DD283826A5 (de)	1990-10-24

Family

ID=25372077

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
DD87327856A DD283826A5 (de)	1986-06-25	1987-06-23	Verfahren zur herstellung eines polyurethanpolymers
DD87304095A DD268967A5 (de)	1986-06-25	1987-06-23	Loesung oder dispersion eines fluessigkristallien polymers

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
DD87304095A DD268967A5 (de)	1986-06-25	1987-06-23	Loesung oder dispersion eines fluessigkristallien polymers

Country Status (17)

Country	Link
EP (1)	EP0260388B1 (pt)
JP (1)	JPH0764906B2 (pt)
KR (1)	KR900003417B1 (pt)
AR (1)	AR242970A1 (pt)
AT (1)	ATE55143T1 (pt)
AU (1)	AU606064B2 (pt)
BR (1)	BR8703199A (pt)
CA (1)	CA1309202C (pt)
DD (2)	DD283826A5 (pt)
DE (1)	DE3764049D1 (pt)
DK (1)	DK325987A (pt)
ES (1)	ES2016824B3 (pt)
FI (1)	FI95142C (pt)
NO (1)	NO170027C (pt)
NZ (1)	NZ220702A (pt)
YU (2)	YU46055B (pt)
ZA (1)	ZA874400B (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AU612707B2 (en) *	1987-10-12	1991-07-18	Nippon Paint Co., Ltd.	Thermosetting polyester resin and powder coating resinous composition containing the same
EP0464886A3 (en) *	1990-07-06	1992-09-02	General Motors Corporation	Self-reinforcing polyurethane compositions
EP1892260B1 (en) *	2005-06-16	2013-06-12	Nissan Motor Co., Ltd.	Article undergoing stimulus-responsive deformation and vehicle part using the same
EP2416658A4 (en) *	2009-04-09	2012-10-17	Philadelphia Children Hospital	PHOTOACTIVATED FIXATION OF CHOLESTEROL TO POLYURETHANE SURFACES FOR ENDOTHELIAL CELL ADHESION
JP6473242B2 (ja) *	2015-12-17	2019-02-20	ＴｏｙｏＴｉｒｅ株式会社	熱応答性材料、熱応答性材料の製造方法、及び熱制御装置
CN116063655B (zh) *	2023-02-28	2025-07-25	北京大学	基于螺烯类分子马达的光响应多模式形变聚氨酯液晶弹性体及其制备方法和应用

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3872050A (en) *	1972-07-19	1975-03-18	William J Benton	Polyurethane liquid crystal dispersion system and devices
DE2442176A1 (de) *	1973-09-07	1975-03-13	Takeda Chemical Industries Ltd	Temperaturempfindliche polymermassen
US4182700A (en) *	1976-07-20	1980-01-08	Benton William J	Elastomeric polyurethane film containing dispersed discrete aggregates of liquid crystal and method of making the same

1987
- 1987-06-11 CA CA000539420A patent/CA1309202C/en not_active Expired - Fee Related
- 1987-06-12 AU AU74169/87A patent/AU606064B2/en not_active Ceased
- 1987-06-16 NZ NZ220702A patent/NZ220702A/xx unknown
- 1987-06-18 ZA ZA874400A patent/ZA874400B/xx unknown
- 1987-06-23 FI FI872779A patent/FI95142C/fi not_active IP Right Cessation
- 1987-06-23 DD DD87327856A patent/DD283826A5/de not_active IP Right Cessation
- 1987-06-23 DD DD87304095A patent/DD268967A5/de not_active IP Right Cessation
- 1987-06-24 JP JP62155607A patent/JPH0764906B2/ja not_active Expired - Lifetime
- 1987-06-24 EP EP87109114A patent/EP0260388B1/en not_active Expired - Lifetime
- 1987-06-24 DE DE8787109114T patent/DE3764049D1/de not_active Expired - Fee Related
- 1987-06-24 ES ES87109114T patent/ES2016824B3/es not_active Expired - Lifetime
- 1987-06-24 NO NO872637A patent/NO170027C/no unknown
- 1987-06-24 YU YU117887A patent/YU46055B/sh unknown
- 1987-06-24 AT AT87109114T patent/ATE55143T1/de not_active IP Right Cessation
- 1987-06-24 BR BR8703199A patent/BR8703199A/pt unknown
- 1987-06-25 DK DK325987A patent/DK325987A/da unknown
- 1987-06-25 KR KR1019870006448A patent/KR900003417B1/ko not_active Expired
- 1987-06-25 AR AR87307961A patent/AR242970A1/es active
1988
- 1988-08-11 YU YU155488A patent/YU47012B/sh unknown

Also Published As

Publication number	Publication date
NZ220702A (en)	1990-08-28
EP0260388A3 (en)	1988-04-06
AU7416987A (en)	1988-01-07
NO872637D0 (no)	1987-06-24
EP0260388B1 (en)	1990-08-01
ES2016824B3 (es)	1990-12-01
AR242970A1 (es)	1993-06-30
BR8703199A (pt)	1988-03-08
YU47012B (sh)	1994-11-15
KR880000487A (ko)	1988-03-26
NO170027B (no)	1992-05-25
FI95142B (fi)	1995-09-15
NO872637L (no)	1987-12-28
DE3764049D1 (de)	1990-09-06
DK325987D0 (da)	1987-06-25
FI872779A0 (fi)	1987-06-23
ATE55143T1 (de)	1990-08-15
ZA874400B (en)	1989-02-22
YU117887A (en)	1989-02-28
YU155488A (en)	1990-02-28
DK325987A (da)	1987-12-26
EP0260388A2 (en)	1988-03-23
CA1309202C (en)	1992-10-20
NO170027C (no)	1992-09-02
FI95142C (fi)	1995-12-27
YU46055B (sh)	1992-12-21
JPH0764906B2 (ja)	1995-07-12
FI872779A7 (fi)	1987-12-26
JPS6322820A (ja)	1988-01-30
AU606064B2 (en)	1991-01-31
KR900003417B1 (ko)	1990-05-18
DD268967A5 (de)	1989-06-14

Legal Events

Date	Code	Title	Description
1998-07-02	ENJ	Ceased due to non-payment of renewal fee

Publication	Publication Date	Title
DE69220338T2 (de)	1997-11-06	Polyurethanschäume
DE69030278T2 (de)	1997-08-14	Isocyanatzusammensetzung und Verfahren zur Herstellung davon abgeleiteter flexibler Schaumstoffe
DE69123821T2 (de)	1997-04-10	Prepolymer mit Isocyanatendgruppen und daraus hergestellter flexibler Polyurethanschaum
DE1251019C2 (de)	1973-03-22	Verfahren zur herstellung von polyurethanschaumstoffen
DE69626890T2 (de)	2003-11-13	Polyurethanelastomere die verbesserte Anfangsfestigkeiten und Entformungszeiten aufweisen und für ihre Herstellung geeignete Polyoxyalkylen-Polyole
EP0600261B1 (de)	1998-01-21	Polysiloxan-Polyoxyalkylen-Blockmisch-polymerisat mit unterschiedlichen Polyoxyalkylenblöcken im durchschnittlichen Molekül
DE69925294T2 (de)	2006-03-09	Verfahren zur herstellung eines flexiblen polyurethanschaumstoffs
DE69014545T2 (de)	1995-05-04	Flammwidrige Zusammensetzungen.
EP0152878B1 (de)	1989-01-04	Verfahren zur Herstellung von flexiblen Polyesterurethanschäumen
DE60019975T2 (de)	2006-04-27	VERFAHREN ZUR HERSTELLUNG EINES FREI AUFGEHENDEN ODER EINES BLOCK-Polyurethanweichschaumstoffes
DE2711735C2 (pt)	1988-07-07
EP0301214A2 (de)	1989-02-01	Orthopädische Stützverbände mit Reaktivharz
DE2919372A1 (de)	1979-12-06	Verfahren zur herstellung von weichschaumstoffen aus polyaetherpolyurethanen
DE2536039B2 (de)	1978-12-14	Verfahren zur Herstellung eines elastischen Polyurethanschaums
DD280535A5 (de)	1990-07-11	Zusammensetzung mit darin dispergierten laenglichen teilchen eines hochschmelzenden harten polymers und verfahren zu ihrer herstellung
DE4243799A1 (de)	1994-06-30	Siloxanblockcopolymer-modifizierte thermoplastische Polyurethane
DE69308530T2 (de)	1997-06-26	Polyurethanschaumstoffe
DE2425657C2 (de)	1983-08-25	Verfahren zur Herstellung eines flexiblen Polyurethanschaumstoffs
DE2507161A1 (de)	1975-10-16	Verfahren zur herstellung von urethangruppen aufweisenden schaumstoffen
CH673842A5 (pt)	1990-04-12
DE2815579A1 (de)	1979-10-25	Verfahren zur herstellung von polyurethan-weichschaumstoffen
DE2753458C2 (pt)	1988-06-30
DD283826A5 (de)	1990-10-24	Verfahren zur herstellung eines polyurethanpolymers
DE2013787A1 (de)	1971-10-21	Verfahren zur Herstellung von Polyurethanschaumstoffen
DE1212718B (de)	1966-03-17	Verfahren zur Herstellung flexibler Polyurethanschaumstoffe