发明名称 |
Toothed belt comprising a resistant layer and resistant layer thereof |
摘要 |
There is described a toothed belt comprising an elastomeric material body, in which a plurality of longitudinal filiform resistant inserts is embedded, and a toothing coated by a coating fabric. A resistant layer that increases the resistance to abrasion and thus the resistance to wear of the toothed belt is adhered over the coating fabric. The resistant layer comprises a vulcanization agent and more than 75% of an elastomer formed by at least one copolymer modified with an unsaturated carboxylic acid salt and obtained from a dien monomer and a nitrile group-containing monomer. The resistant layer is advantageously separated from the fabric and is calendered on the fabric itself. |
申请公布号 |
US8859081(B2) |
申请公布日期 |
2014.10.14 |
申请号 |
US200812679992 |
申请日期 |
2008.09.25 |
申请人 |
Dayco Europe S.r.l. |
发明人 |
Baldovino Carlo;Rolando Adriano |
分类号 |
B32B3/28;C08L55/00;F16G1/00;F16G5/00;F16G1/28;F16G5/20;C08K5/098;B23B3/30 |
主分类号 |
B32B3/28 |
代理机构 |
Frommer Lawrence & Haug LLP |
代理人 |
Frommer Lawrence & Haug LLP ;Santucci Ronald R. |
主权项 |
1. A toothed belt comprising:
physical properties for maintaining the belt in an oil wet condition in a timing system, including a body made of a first elastomeric material formed by a mixture of one or more copolymers, obtained from a dien monomer and a nitrile group-containing monomer, and a plurality of teeth; said teeth being coated by a fabric; said fabric being covered by a resistant layer, said resistant layer totally adhering to the fabric and forming in use the working surface of the toothed belt and wherein said resistant layer comprises a vulcanisation agent and more than 85% of a second elastomeric material formed by at least one copolymer modified with an unsaturated carboxylic acid salt and obtained from a dien monomer and a nitrile group-containing monomer,
wherein said first elastomeric material has an unsaturation level lower than 1%,wherein said second elastomeric material is formed by a mixture of one or more copolymers, obtained from a dien monomer and a nitrile-group containing monomer in which the nitrile group-containing monomers are in a percentage in the range between 33% and 49% in weight with respect to total final copolymers,wherein said resistant layer contains no anti-friction material, and,wherein said resistant layer consists essentially of said second elastomeric material. |
地址 |
Chieti IT |