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Machine translation
1. (WO2002028813) LOW SHRINKAGE THERMOSETTING RESIN COMPOSITIONS AND METHODS OF USE THEREFOR
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2002/028813    International Application No.:    PCT/US2001/030423
Publication Date: 11.04.2002 International Filing Date: 27.09.2001
Chapter 2 Demand Filed:    27.03.2002    
IPC:
C07C 69/54 (2006.01), C07C 69/753 (2006.01), C07D 207/404 (2006.01), C08F 220/30 (2006.01)
Applicants: LOCTITE [US/US]; 1001 Trout Brook Crossing Rocky Hill, CT 06067 (US) (For All Designated States Except US).
DERSHEM, Stephen, M. [US/US]; (US) (For US Only).
YANG, Kang [US/US]; (US) (For US Only)
Inventors: DERSHEM, Stephen, M.; (US).
YANG, Kang; (US)
Agent: REITER, Stephen, E.; Foley & Lardner P.O. Box 80278 San Diego, CA 92138-0278 (US)
Priority Data:
60/237,775 30.09.2000 US
Title (EN) LOW SHRINKAGE THERMOSETTING RESIN COMPOSITIONS AND METHODS OF USE THEREFOR
(FR) COMPOSITIONS DE RESINES THERMODURCISSANTES ET A FAIBLE RETRAIT, ET PROCEDES D'UTILISATION ASSOCIES
Abstract: front page image
(EN)In accordance with the present invention, there are provided thermosetting resin compositions with a reduced propensity to shrink in volume upon cure and methods of use therefor. The compositions of the present invention include compounds having aromatic, rigid-rod like spacer groups between the crosslinkable moieties. As such, these compounds impart a degree of liquid crystal-like character to the thermosetting resin composition which results in lower shrinkage upon cure. This effect follows from the well-known expansion that occurs when liquid crystal-like materials pass from a nematic liquid crystal-like state to an isotropic state. Further provided by the present invention are low shrinkage die attach pastes and methods of use thereof.
(FR)L'invention concerne des compositions de résines thermodurcissantes présentant une propension réduite au retrait en volume lors du durcissement; elle concerne également des procédés d'utilisation de ces compositions. Les compositions de l'invention comprennent des composés possédant des groupes d'espacement aromatiques, du type tiges rigides, entre les fractions réticulables, ces composés impartissant, par conséquent, à la composition de résines thermodurcissantes, un certain degré de caractéristique de type cristal liquide, ce qui se traduit par un retrait plus faible lors du durcissement. Cet effet suit l'effet bien connu d'expansion, lequel se produit lorsque les matériaux du type cristal liquide passent d'un état nématique liquide, de type cristal, à un état isotrope. En outre, l'invention concerne des pâtes de fixation de puces, à retrait réduit, ainsi que des procédés d'utilisation de celles-ci.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PH, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)