Process for adhering vulcanized rubbers and process for producing rubber products using said process for adhering
US6328840A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1998 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Jan 5, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1039
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A processes for adhering a vulcanized rubber to a vulcanized rubber or an unvulcanized rubber. Adhesion of vulcanized rubbers to each other is conducted by using at least one of the vulcanized rubbers before vulcanization thereof according to steps of: (1) laminating a sheet material which can easily be peeled from a surface of a rubber after vulcanization to a rough surface of the rubber before vulcanization, (2) vulcanizing a resultant laminate, (3) removing the sheet material from the vulcanized laminate immediately before adhesion of the vulcanized rubber in the laminate to another vulcanized rubber, and (4) adhering the vulcanized rubbers to each other according to a method of adhesion. The adhering of the vulcanized rubbers to each other is also conducted by using a rubber composition for adhesion inserted between the vulcanized rubbers without procedures using the sheet material. An unvulcanized rubber is used in place of another vulcanized rubber in the process for adhering a vulcanized rubber and an unvulcanized rubber to each other. A rubber composition for adhesion which contains sulfur in an amount greater than that of the vulcanized rubber may be used in the method of …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.