IT966185B - Procedimento per produrre poliure tani di alto peso molecolare e pro dotti cosi ottenuti - Google Patents
Procedimento per produrre poliure tani di alto peso molecolare e pro dotti cosi ottenutiInfo
- Publication number
- IT966185B IT966185B IT53159/72A IT5315972A IT966185B IT 966185 B IT966185 B IT 966185B IT 53159/72 A IT53159/72 A IT 53159/72A IT 5315972 A IT5315972 A IT 5315972A IT 966185 B IT966185 B IT 966185B
- Authority
- IT
- Italy
- Prior art keywords
- polyuras
- tanes
- procedure
- products
- molecular weight
- Prior art date
Links
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
- C08G18/82—Post-polymerisation treatment
-
- 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
- C08G18/08—Processes
- C08G18/0838—Manufacture of polymers in the presence of non-reactive compounds
- C08G18/0842—Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents
- C08G18/0847—Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents in the presence of solvents for the polymers
- C08G18/0852—Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents in the presence of solvents for the polymers the solvents being organic
-
- 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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S528/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S528/902—Particulate material prepared from an isocyanate
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)
- Manufacturing & Machinery (AREA)
- Polyurethanes Or Polyureas (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2149836A DE2149836C3 (de) | 1971-10-06 | 1971-10-06 | Dreistufenverfahren zur Herstellung von hochmolekularen, in organischen Lösungsmitteln löslichen, noch freie Hydroxylgruppen enthaltenden Polyurethanen |
Publications (1)
Publication Number | Publication Date |
---|---|
IT966185B true IT966185B (it) | 1974-02-11 |
Family
ID=5821603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT53159/72A IT966185B (it) | 1971-10-06 | 1972-10-04 | Procedimento per produrre poliure tani di alto peso molecolare e pro dotti cosi ottenuti |
Country Status (9)
Country | Link |
---|---|
US (1) | US3817933A (it) |
JP (1) | JPS5614687B2 (it) |
BE (1) | BE789794A (it) |
DE (1) | DE2149836C3 (it) |
ES (1) | ES407339A1 (it) |
FR (1) | FR2156151B1 (it) |
GB (1) | GB1386892A (it) |
IT (1) | IT966185B (it) |
NL (1) | NL7213367A (it) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2515766C3 (de) * | 1975-04-10 | 1980-12-11 | Bayer Ag, 5090 Leverkusen | Verbessertes Verfahren zur Herstellung hochmolekularer, in organischen Lösungsmitteln löslicher, isocyanatgruppenfreier Polyurethane |
DE2832759A1 (de) * | 1978-07-26 | 1980-02-14 | Basf Ag | Verfahren zur herstellung von hochmolekularen, in organischen loesungsmitteln loeslichen polyurethanen |
US4385171A (en) * | 1982-04-30 | 1983-05-24 | Olin Corporation Research Center | Removal of unreacted diisocyanate from polyurethane prepolymers |
DE3930995A1 (de) * | 1989-09-16 | 1991-03-28 | Bayer Ag | Verfahren zur herstellung von polyester (urethan) polyolen enger molekulargewichtsverteilung und ihre verwendung |
KR101835803B1 (ko) | 2010-02-26 | 2018-03-08 | 바스프 에스이 | 열가소성 폴리우레탄을 위한 촉매화 펠릿 템퍼링 |
US8455608B2 (en) | 2010-02-26 | 2013-06-04 | Basf Se | Catalyzed pellet heat treatment for thermoplastic polyurethanes |
EP3838940A1 (en) | 2019-12-17 | 2021-06-23 | Covestro Deutschland AG | Polyurethanes having an increase in molecular weight when heated |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1451334A (fr) * | 1964-06-26 | 1966-01-07 | Bayer Ag | Procédé de préparation de feuilles possédant un module d'élasticité élevé |
-
0
- BE BE789794D patent/BE789794A/xx not_active IP Right Cessation
-
1971
- 1971-10-06 DE DE2149836A patent/DE2149836C3/de not_active Expired
-
1972
- 1972-09-28 US US00293186A patent/US3817933A/en not_active Expired - Lifetime
- 1972-10-03 NL NL7213367A patent/NL7213367A/xx not_active Application Discontinuation
- 1972-10-04 IT IT53159/72A patent/IT966185B/it active
- 1972-10-05 JP JP9950272A patent/JPS5614687B2/ja not_active Expired
- 1972-10-05 ES ES407339A patent/ES407339A1/es not_active Expired
- 1972-10-06 GB GB4614072A patent/GB1386892A/en not_active Expired
- 1972-10-06 FR FR7235577A patent/FR2156151B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE789794A (fr) | 1973-04-06 |
US3817933A (en) | 1974-06-18 |
DE2149836C3 (de) | 1980-08-14 |
DE2149836B2 (de) | 1979-11-29 |
FR2156151A1 (it) | 1973-05-25 |
DE2149836A1 (de) | 1973-04-12 |
ES407339A1 (es) | 1975-10-01 |
JPS5614687B2 (it) | 1981-04-06 |
JPS4845595A (it) | 1973-06-29 |
FR2156151B1 (it) | 1978-09-29 |
NL7213367A (it) | 1973-04-10 |
GB1386892A (en) | 1975-03-12 |
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