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Machine translation
1. (WO1997021768) HIGH CLARITY CARBOXYLATED NITRILE RUBBER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1997/021768    International Application No.:    PCT/US1996/019785
Publication Date: 19.06.1997 International Filing Date: 10.12.1996
Chapter 2 Demand Filed:    02.07.1997    
IPC:
C08F 236/12 (2006.01), C08K 5/092 (2006.01)
Applicants: THE GOODYEAR TIRE & RUBBER COMPANY [US/US]; Patent Section - D/823, 1144 East Market Street, Akron, OH 44316-0001 (US)
Inventors: GRIMM, Donald, Charles; (US)
Agent: ROCKHILL, Alvin, T.; The Goodyear Tire & Rubber Company, Patent Section - D/823, 1144 East Market Street, Akron, OH 44316-0001 (US)
Priority Data:
60/008,738 13.12.1995 US
Title (EN) HIGH CLARITY CARBOXYLATED NITRILE RUBBER
(FR) CAOUTCHOUC NITRILE CARBOXYLE HAUTEMENT TRANSPARENT
Abstract: front page image
(EN)The present invention relates to a high clarity water sensitive carboxylated nitrile rubber composition which is particularly useful in making photopolymer formulations for printing plates utilized in flexographic printing applications. The present invention more specifically discloses a high clarity water sensitive carboxylated nitrile rubber composition which is comprised of (a) a carboxylated nitrile rubber which is comprised of repeat units which are derived from about 30 weight percent to about 60 weight percent 1,3-butadiene, from about 30 weight percent to about 50 weight percent acrylonitrile, and from about 10 weight percent to about 20 weight percent methacrylic acid, and (b) from about 1 to about 10 phr of at least one organic acid which contains at least three carboxyl groups. The carboxylated nitrile rubber of this invention will typically have a Mooney ML-4 viscosity of less than about 80. In applications where improved scorch safety is required the rubber composition will also contain from about 0.1 phr to about 7 phr of at least one oligomerized fatty acid.
(FR)L'invention concerne un caoutchouc nitrile carboxylé hautement transparent et sensible à l'eau, qui est particulièrement utile pour réaliser des formulations de photopolymère pour les plaques d'impression utilisées en impression flexographique. Cette invention concerne plus particulièrement une composition de caoutchouc nitrile carboxylé hautement transparent et sensible à l'eau comprenant (a) un caoutchouc nitrile carboxylé constitué d'unités répétitives comprenant de 30 % en poids environ à 60 % en poids environ de 1,3-butadiène, de 30 % en poids environ à 50 % en poids environ d'acrylonitrile et de 10 % en poids environ à 20 % en poids environ d'acide méthacrylique et (b) de 1 partie en poids par cent parties en poids de caoutchouc (ppc) environ à 10 ppc environ d'au moins un acide organique renfermant au moins trois groupes carboxyliques. Le caoutchouc nitrile carboxylé de l'invention aura habituellement une viscosité Mooney ML-4 inférieure à 80 environ. Dans les applications qui demandent une ignifugation, la composition de caoutchouc va contenir entre 1 ppc environ et 7 ppc environ d'au moins un acide gras oligomérisé.
Designated States: AL, AM, AT, AU, AZ, BB, BG, BR, BY, CA, CH, CN, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, 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, UZ, VN.
African Regional Intellectual Property Organization (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)