Abrégé

Disclosed are an alkyl phenolic resin and a method for preparing same. The alkyl phenolic resin is obtained by reacting an alkylphenol and 0-10 wt. % of optional other phenols, based on the total weight of the phenols, with an aldehyde, wherein the content of the phenol residues in the alkyl phenolic resin is no more than 2 wt. %, the softening point temperature determined by ASTM D3416-97 (2007) is 85°C-105°C, the self-adhesion determined by Japanese standard JIS T9233-1997 is 8-25 N, and the alkyl of the alkylphenol has 6-12 carbon atoms, and the content of 4-(1,1,3,3-tetramethyl butyl) phenol in the alkylphenol is 0-85 wt. %. The alkyl phenolic resin of the invention can be used in rubber viscosifiers.

Classes IPC  ?

• C08G 8/10 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des phénols d'aldéhydes de formaldéhyde, p. ex. de formaldéhyde formé in situ avec du phénol
• C08L 21/00 - Compositions contenant des caoutchoucs non spécifiés

Abrégé

This invention is related to an improved vulcanization rubber composition comprising (i) a rubber component selected from natural and synthetic rubber; and (ii) a methylene donor; and (iii) a blend containing resorcinol and m-aminophenol derivative type material as the methylene acceptor. This resorcinol and m-aminophenol derivative blend can be prepared by melt blending of resorcinol with one or more derivative of m-aminophenol compound. The methylene acceptor compound of this invention has a lower melting point and also, showed much improved rubber compound cure, tensile and steel cord adhesion properties than resorcinol.

Classes IPC  ?

• C08L 21/00 - Compositions contenant des caoutchoucs non spécifiés
• C08K 5/13 - PhénolsPhénolates
• C08K 5/17 - AminesComposés d'ammonium quaternaire
• C08K 5/18 - AminesComposés d'ammonium quaternaire avec des groupes amino liés aromatiquement

Abrégé

This invention is related to modified alkylphenol aldehyde resins and process for preparing them from the reactions of alkylphenols, aldehydes, amines, rosins and fatty acids. When used in rubber compounds, these modified alkylphenol aldehyde resins provide much improved tack properties.

Classes IPC  ?

• C08L 21/00 - Compositions contenant des caoutchoucs non spécifiés
• C08L 61/14 - Condensats phénol-aldéhydes modifiés
• C08G 8/32 - Polycondensats modifiés chimiquement par des acides organiques ou leurs dérivés, p. ex. des huiles grasses
• C08G 8/34 - Polycondensats modifiés chimiquement par des résines naturelles ou des acides résiniques, p. ex. acide abiétique
• C09J 121/00 - Adhésifs à base de caoutchoucs non spécifiés
• B60C 1/00 - Pneumatiques caractérisés par la composition chimique, la disposition ou le mélange physique de la composition
• C08G 8/28 - Polycondensats modifiés chimiquement