METHOD FOR MANUFACTURING RUBBER COMPOSITE AND RUBBER COMPOSITE

PROBLEM TO BE SOLVED: To provide a method for manufacturing a rubber composite consisting of a coating body and a rubber object capable of conferring decorativeness by using a coating agent which can be adhered, both easily and firmly, onto a rubber object without requiring undue labor; and the rubb...

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Bibliographische Detailangaben
Hauptverfasser: AKAMA HIDEHIRO, GONDO AKIKO, HARA ATSUSHI, ISHIHARA TAKENOBU
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method for manufacturing a rubber composite consisting of a coating body and a rubber object capable of conferring decorativeness by using a coating agent which can be adhered, both easily and firmly, onto a rubber object without requiring undue labor; and the rubber composite obtained by the method.SOLUTION: In one version of the provided method for manufacturing a rubber composite consisting of a coating body and a rubber object, the coating body is obtained by adhering, to at least a portion of the surface of a rubber object, a coating agent including a composition concocted by blending a polythiol compound (A), an isocyanate group-containing compound (B), and a radical generator (C) in a state where the ratio of the total molar number of isocyanate groups included within the isocyanate group-containing compound (B) with respect to the total molar number of thiol groups included within the polythiol compound (A) (isocyanate group/thiol group) is 0.20 or above and 0.80 or below and then subjecting the coating agent to at least either of heating and light irradiation; in another version of the provided method for manufacturing a rubber composite consisting of a coating body and a rubber object, the coating body is obtained by forming a coating sheet consisting of a coating agent including a composition concocted by blending a polythiol compound (A), an isocyanate group-containing compound (B), and a radical generator (C) in a state where the ratio of the total molar number of isocyanate groups included within the isocyanate group-containing compound (B) with respect to the total molar number of thiol groups included within the polythiol compound (A) (isocyanate group/thiol group) is 0.20 or above and 0.80 or below and then subjecting the coating sheet to at least either of heating and light irradiation. 【課題】手間をかけずにゴム物品に容易に付着させることができ、かつ強力に密着し得るコーティング剤を用いた、加飾性を付与することのできるコーティング体とゴム物品とからなるゴム複合体の製造方法、及びその方法で得られたゴム複合体を提供すること。【解決手段】ポリチオール化合物(A)、イソシアネート基含有化合物(B)、及びラジカル発生剤(C)を配合してなり、該ポリチオール化合物(A)に含まれるチオール基の合計モル数に対する、該イソシアネート基含有化合物(B)に含まれるイソシアネート基の合計モル数の比(イソシアネート基/チオール基)が0.20以上かつ0.80以下である組成物を含むコーティング剤をゴム物品の表面の少なくとも一部に付着させた後、該コーティング剤に加熱及び光照射の少なくとも一方を施すことによりコーティング体とすることを特徴とする該コーティング体と該ゴム物品とからなるゴム複合体の製造方法、及びポリチオール化合物(A)、イソシアネート基含有化合物(B)、及びラジカル発生剤(C)を配合してなり、該ポリチオール化合物(A)に含まれるチオール基の合計モル数に対する、該イソシアネート基含有化合物(B)に含まれるイソシアネート基の合計モル数の比(イソシアネート基/チオール基)が0.20以上かつ0.80以下である組成物を含むコーティング剤からなるコーティングシートを形成し、該コーティングシートをゴム物品の表面の少なくとも一部に付着させた後、該コーティングシー