| US 7,368,493 B2 | ||
| Carbodiimide composition with suppressed yellowing, a stabilizer against hydrolysis and a thermoplastic resin composition | ||
| Ikuo Takahashi, Chiba (Japan); Hirotaka Iida, Chiba (Japan); and Norimasa Nakamura, Chiba (Japan) | ||
| Assigned to Nisshinbo Industries, Inc., Tokyo (Japan) | ||
| Filed on Jul. 28, 2004, as Appl. No. 10/900,282. | ||
| Claims priority of application No. 2003-288472 (JP), filed on Aug. 07, 2003. | ||
| Prior Publication US 2005/0032947 A1, Feb. 10, 2005 | ||
| Int. Cl. C08K 5/29 (2006.01) | ||
| U.S. Cl. 524—195 [524/128; 252/399; 252/400.2; 252/400.24] | 10 Claims |
| 1. A stabilizer against hydrolysis for an ester-group-containing resin or a biodegradable plastic, mainly comprising a carbodiimide
composition comprising a carbodiimide compound (A) and an antioxidant (B) having 5% weight loss at a temperature not lower
than 250° C. as determined by a thermogravimetric (TG) method,
wherein the antioxidant (B) is dispersed and present in the composition by admixing during synthesis of the carbodiimide compound
(A).
|