Cross-linked polyesteramides and production thereof

Details Cross-linked polyesteramides and production thereof Cross-linked polyesteramides and production thereof

C - Chemistry, Metallurgy

08

G

400/1334, 402/18

C08G 69/44 (2006.01) C08L 77/12 (2006.01)

Patent

CA 1192346

ABSTRACT OF THE DISCLOSURE A new cross-linked polyester amide containing an ester amide chain of the following formula in the polymer chain: Image [wherein R and R' are each a bivalent hydrocarbon radical; and n is a positive integer], which may be obtained by the reaction of a bis(2-oxazoline) compound and a dicarboxylic acid, wherein at least 5 % of the -NH- groups of the ester- amide chain are cross-linked with a 2-oxazoline ring by a ring-opening addition reaction. The cross-linked polyesteramide is tough and excels in abrasion resistance and solvent resistance and can be utilized in the molding of machin- ery parts such as rolls and gears and embedded molding of electrical machinery and apparatus parts as well as for electric insulating materials and dental materials. The invention also relates to a resin composition comprising the cross-linked polyesteramide and about 3 to 95 weight % of a reinforcement material and/or a filler which can provide a molding material having excellent mechanical properties, especially outstanding toughness, beyond that expected for conventional fiber-reinforced plastics and other superior characteristics such as its thermal properties. The resin composition can be utilized not only for conventional fiber-reinforced plastics applications but also in areas where conventional fiber-reinforced plastics have proved unsatisfactory.

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