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1. (WO1997019123) TRIMODAL MOLECULAR WEIGHT POLYETHER POLYOL PREPOLYMERS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/019123 International Application No.: PCT/US1996/016961
Publication Date: 29.05.1997 International Filing Date: 01.11.1996
Chapter 2 Demand Filed: 12.06.1997
IPC:
C08G 18/12 (2006.01) ,C08G 18/48 (2006.01) ,C08G 18/76 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18
Polymeric products of isocyanates or isothiocyanates
06
with compounds having active hydrogen
08
Processes
10
Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
12
using two or more compounds having active hydrogen in the first polymerisation step
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18
Polymeric products of isocyanates or isothiocyanates
06
with compounds having active hydrogen
28
characterised by the compounds used containing active hydrogen
40
High-molecular-weight compounds
48
Polyethers
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18
Polymeric products of isocyanates or isothiocyanates
06
with compounds having active hydrogen
70
characterised by the isocyanates or isothiocyanates used
72
Polyisocyanates or polyisothiocyanates
74
cyclic
76
aromatic
Applicants:
UNIROYAL CHEMICAL COMPANY, INC. [US/US]; World Headquarters Middlebury, CT 06749, US
Inventors:
GAJEWSKI, Vincent, John; US
MAUPIN, Christopher, James; US
Agent:
THOMPSON, Raymond, D.; Uniroyal Chemical Company, Inc. World Headquarters Middlebury, CT 06749, US
Priority Data:
08/561,65017.11.1995US
Title (EN) TRIMODAL MOLECULAR WEIGHT POLYETHER POLYOL PREPOLYMERS
(FR) PREPOLYMERES DE POLYOL DE POLYETHER DE POIDS MOLECULAIRE TRIMODAL
Abstract:
(EN) A trimodal molecular weight toluene diisocyanate endcapped polyether polyol prepolymer is disclosed having free toluene diisocyanate below 0.5 weight percent where the three molecular weight polyols used are 300-800, 800 to 1500 and 1500-10000. Processes to make and use these prepolymers as polyurethane castable elastomers having exceptionally long flex fatigue lives using environmentally friendly materials essentially free of TDI are also disclosed.
(FR) L'invention porte sur un prépolymère de polyol de polyéther à extrémité coiffée de toluène di-isocyanate de poids moléculaire trimodal comportant du toluène di-isocyanate libre selon un pourcentage pondéral inférieur à 0,5, les polyols utilisés ayant trois poids moléculaires différents compris entre 300 et 800, 800 et 1500 et 1500 et 10 000. Cette invention a également trait à des procédés de production et d'utilisation de ces prépolymères en tant qu'élastomères de polyuréthanne coulables, d'une fatigue de souplesse exceptionnellement longue, faisant appel à des substances sans danger pour l'environnement, sensiblement exemptes de toluène di-isocyanate (TDI).
Designated States: AU, CA, CN, JP, KR
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0861276JP3073023 JPH11500179 CA2235592AU1996075188