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1. (WO1997036857) METHOD OF UTILIZING ISOCYANATE LINKAGES FOR FORMING MULTI-TIER CASCADE POLYMERS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1997/036857    International Application No.:    PCT/US1997/005231
Publication Date: 09.10.1997 International Filing Date: 31.03.1997
Chapter 2 Demand Filed:    27.10.1997    
IPC:
C07C 265/04 (2006.01), C07C 271/22 (2006.01), C08G 18/71 (2006.01), C08G 83/00 (2006.01)
Applicants: UNIVERSITY OF SOUTH FLORIDA [US/US]; 4202 East Fowler Avenue - FAO 126, Tampa, FL 33620-7900 (US) (For All Designated States Except US).
NEWKOME, George, R. [US/US]; (US) (For US Only).
WEIS, Claus [CH/CH]; (CH) (For US Only)
Inventors: NEWKOME, George, R.; (US).
WEIS, Claus; (CH)
Agent: KOHN, Kenneth, I.; Kohn & Associates, Suite 410, 30500 Northwestern Highway, Farmington Hills, MI 48334 (US)
Priority Data:
08/626,395 02.04.1996 US
08/704,834 28.08.1996 US
Title (EN) METHOD OF UTILIZING ISOCYANATE LINKAGES FOR FORMING MULTI-TIER CASCADE POLYMERS
(FR) PROCEDE POUR UTILISER DES LIAISONS ISOCYANATE POUR FORMER DES POLYMERES A MULTICOUCHES SUPERPOSEES
Abstract: front page image
(EN)A method of synthesizing multi-tier cascade polymers and the polymers made thereby are formed by reacting at least one tier of a polymer with a functionalized isocyanate having the following formula: O = C = N - C(CH¿2?-R)¿3? with R being selected from the group including: a) - (CH¿2?)¿n? - CH¿2? - COOR' with R' being selected from the group consisting of alkyl, cycloalkyl, aryl, heteroaryl-polycycloalkyl, adamantyl, n = 0-10; - O - (CH¿2?)¿n? - CH¿2? - COOR'; b) - O - (CH¿2?)¿n? - CH¿2? - CN with R' being selected from the group consisting of alkyl (C-1 to C-20), cycloalkyl (C-3 to C-10), aryl heteroaryl, polycycloalkyl, adamantyl, n = 0-10; and c) - CH¿2? - (CH¿2?)¿n? - O - R'' with n = 0-10, R'' being selected from the group consisting of alkyl, cycloalkyl, aryl heteroaryl ester functionality, and a sulphur or a silicon atom bearing substituents selected from the group including: (I), (II), -SO¿2?-R''', - SiR¿3? - CH¿2? - CH¿2? - CN, -CH¿2? - CH¿2? - COOR''' wherein R''' is alkyl (C-1 to C-20), cycloalkyl (C3-C-10), aryl, heteroaryl, polycycloalkyyl, adamantyl.
(FR)L'invention concerne un procédé de synthèse de polymères à multicouches superposées et les polymères ainsi fromés. Le procédé consiste à faire réagir au moins une couche du polymère avec un isocyanate fonctionnalisé ayant la formule O=C=N-C(CH¿2?-R)¿3? dans laquelle R est choisi dans le groupe comprenant: a)- (CH¿2?)¿n?-CH¿2?-COOR' ou R' est choisi dans le groupe comprenant les radicaux alkyle, cycloalkyle, aryle, hétéroaryle, polycycloalkyle, adamandyle et n = 1-10; b) -O-(CH¿2?)¿n?-CH¿2?-COOR', b) -O-(CH¿2?)¿n?-CH¿2?-CN, où R' est choisi dans le groupe comprenant les radicaux (C1-C20)alkyle, (C3-C10)cycloalkyle, aryle, hétéroaryle, polycycloalkyle, adamantyle, n = 0-10; et c) -CH¿2?-(CH¿2?)¿n?-O-R'' avec n = 0-10 et où R'' est choisi dans le groupe comprenant les radicaux alkyle, cycloalkyle, fonction aryle hétéroaryle ester et un atome de soufre ou de silicium portant des substituants choisis parmiles radicaux (I), (II), -SO¿2?-R''', -SiR¿3? -CH¿2?-CH¿2?- CN, -CH¿2?-CH¿2?-COOR''', où R''' est un radical (C1-C20)alkyle, (C3-C10)cycloalkyle, aryle, hétéroaryle, polycycloalkyle et adamantyle.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU.
African Regional Intellectual Property Organization (GH, KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)